CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] This application claims priority from U.S. Provisional Application Serial Number 62/735,815 filed September 24, 2018, and U.S. Provisional Application Serial Number 62/735,855 filed September 24, 2018, and U.S. Provisional Application Serial Number 62/736,633 filed September 26, 2018, and U.S. Provisional Application Serial Number 62/736,660 filed September 26, 2018, which are each hereby incorporated herein by reference their respective entirety.

BACKGROUND OE THE TNVENTTON

[0002] Embodiments of the present invention generally relate to apparatuses for toileting. Embodiments include an assistive apparatus with a buttocks spreading mechanism and expandable seat leaflets. Embodiments also include an assistive apparatus with an adjustable backrest assembly. Embodiments also include an assistive apparatus with an adjustable seat height to be used in conjunction with a toilet seat. Embodiments also relate to an assistive apparatus with rotatable grab bars, a support frame, a supporting leg assembly, and a grab bar assembly.

Description of the Related Art

[0003] Conventionally, the size and shapes of a toilet seat is fixed without capacity of adjusting the width of the toilet seat as desired or customized per use. People with specific needs, such as bariatric, disable, and senior, who have difficulty in spreading their butocks when such individual uses conventional toilets.

[0004] Therefore, an expandable assistive toilet seat apparatus is desirable so as to be placed on a toilet when an individual uses the toilet.

[0005] Conventionally, toilet seats lacking proper back support for individuals. Therefore, an assistive apparatus with an adjustable backrest assembly to be placed atop of a toilet is desirable so as to relieve users' pressure on the back.

[0006] Conventionally, toilet seats lacking proper back support for individuals. Therefore, an assistive apparatus with an adjustable backrest assembly to be placed atop of a toilet is desirable so as to relieve users' pressure on the back.

[0007] Conventionally, toilet seats lacking proper support for individuals and safety assistance. An assistive apparatus is disclosed that provides safety rails and other modern assistive apparatus for toilets.

SUMMARY OE THE TNVENTTON

[0008] The present invention generally an assistive apparatus and a method of using the assistive apparatus.

The assistive apparatus includes an assistive platform having a centered opening, one or more actuators positioned within a leaflet support housing, a right leaflet being positioned on a top side of the assistive platform and connected to the one or more actuators within the leaflet support housing, and a left leaflet being positioned on the top side of the assistive platform and connected to the one or more actuators within the leaflet support housing. The one or more actuators are adapted to adjust a horizontal distance ("H") between the left leaflet and the right leaflet to be apart, where the horizontal distance ("H") is adjustable between a first horizontal distance ("Hl") and a second horizontal distance ("H2").

[0009] In one embodiment, the one or more actuators are connected to one or more drive mechanisms and adapted to be rotated counterclockwise so as to move the right leaflet and the left leaflet in a direction Ll, and be rotated clockwise so as to move the right leaflet and the left leaflet in a direction L2. In another embodiment, the one or more actuators comprises one or more ball screw linear actuators.

[0010] In still another embodiment, the assistive apparatus further includes one or more front supporting legs connected to the assistive platform. In one aspect, the one or more front supporting legs are substantially vertical and physically connected to one or more floor mounting flanges to secure the assistive apparatus and prevent movement. In another aspect, the one or more front supporting legs are connected to a front bar via one or more connectors.

[0011] In yet another embodiment, the assistive apparatus further includes one or more back supporting legs, being connected to a support frame mounting base, where the support frame mounting base is adapted to support the assistive platform. In one aspect, the one or more back supporting legs are substantially vertical and physically connected to one or more floor mounting flanges to secure the assistive apparatus and prevent movement.

[0012] In a further embodiment, the assistive apparatus further includes a lifting assembly being connected to the assistive platform, where the lifting assembly includes one or more lifting shafts adapted to lift the assistive platform so as to position the assistive platform to be tilted between a first stationery position to a second tilted position, tiled horizontally at an angle (“a”)· In one aspect, the“a” angle is adjusted to be between 0° and 80°. In another aspect, the lifting assembly further includes one or more ball screw linear actuators, and one or more nuts connected to the one or more lifting shafts.

[0013] In another embodiment, the assistive apparatus further includes a controller being adapted to control the one or more actuators to adjust the horizontal distance ("H") between the left leaflet and the right leaflet move the right. In one aspect, the controller is clipped on one or more grab handles, where the one or more grab handles are connected to the assistive platform and adapted to provide support to a person while the person is using the assistive apparatus. In another aspect, the controller includes a charging slot for charging the controller.

[0014] In one embodiment, the assistive apparatus includes a back rest assembly having a back rest pad, a top support frame connected to the back rest pad, a bottom support frame connected to the top support frame with one or more fastening knobs, and a support frame mounting base connected to the bottom support frame. In another embodiment, the one or more adjustable knobs are capable of moving from a first vertical position where the top support frame is at a base height ("HO") to a second vertical position where the top support frame is at a desirable height ("Hl").

[0015] In still another embodiment, the top support frame is designed to be angled at an angle ("r") between the top support frame and a vertical line (C-C), and wherein the angle "r" is between zero to 45 degree. In one aspect, the assistive apparatus may further include one or more back supporting legs connected to the support frame mounting base. In another aspect, the assistive apparatus further includes one or more floor mounting flanges, where each back supporting leg is substantially vertical and physically joined to the one or more floor mounting flanges.

[0016] In a further embodiment, the assistive apparatus further includes one or more angle adjusting fastening knobs connected to the bottom support frame and the support frame mounting base, where the one or more angle adjust knobs are adapted to adjust an angle ("b') between the bottom support frame and an vertical line (C-C). For example, the angle "b" may be an angle " bΐ", ranging between zero degree to 89 degree. As another example, the angle "b" may equal to an angle " b2", ranging between zero degree to negative 89 degree.

[0017] In addition, the assistive apparatus further includes a buttock-spreading mechanism. Also, the assistive apparatus may also include one or more front supporting legs connected the buttock-spreading mechanism.

In one aspect, a front bar is connected to the one or more front supporting legs to provide structural support for the one or more front supporting legs.

[0018] In one embodiment, the buttock- spreading mechanism includes an assistive platform, a right leaflet being positioned on a top side of the assistive platform and connected to the one or more actuators within the leaflet support housing, and a left leaflet being positioned on the top side of the assistive platform and connected to the one or more actuators within the leaflet support housing. In addition, the one or more actuators are adapted to adjust a horizontal distance ("FI") between the left leaflet and the right leaflet, wherein the horizontal distance ("FI") is adjustable between a first horizontal distance ("Hl") and a second horizontal distance ("H2").

[0019] In another embodiment, the assistive apparatus further includes a lifting mechanism being connected to the buttock-spreading mechanism and adapted to lift the buttock- spreading mechanism. The lifting mechanism may include one or more lifting shafts adapted to lift the buttock- spreading mechanism so as to position an assistive platform of the buttock-spreading mechanism to be tilted at an angle ("a"). For example, the "a" angle may be adjusted to be between 0° and 80°.

[0020] In another embodiment, the lifting assembly may include one or more ball screw linear actuators and one or more nuts connected to the one or more lifting shafts.

[0021] In one embodiment, the assistive apparatus includes an assistive platform having a centered opening, a supporting leg assembly comprising one or more front supporting legs connected to the assistive platform, and a lifting assembly connected to the assistive platform and adapted to lift the assistive platform. In one

embodiment, the lifting assembly includes one or more lifting shafts adapted to lift the assistive platform so as to position the assistive platform tilted between a first stationery position and a second tilted position, tilted at an angle ("a") in a vertical "Z" direction from a horizontal plane. In one aspect, the "a" angle is adjusted to be between 0° and 80°.

[0022] In one aspect, the one or more front supporting legs are substantially vertical and physically connected to one or more floor mounting flanges to secure the assistive apparatus and prevent movement. In another aspect, the one or more front supporting legs are connected to a front bar via one or more connectors. In addition, the lifting assembly may include one or more ball screw linear actuators and one or more nuts connected to the one or more lifting shafts. [0023] In another aspect, the assistive apparatus further includes a buttock- spreading mechanism having one or more actuators being positioned within a leaflet support housing, a right leaflet being positioned on a top side of the assistive platform and connected to the one or more actuators within the leaflet support housing, and a left leaflet being positioned on the top side of the assistive platform and connected to the one or more actuators within the leaflet support housing. In one embodiment, the one or more actuators are adapted to adjust a horizontal distance ("2H") between the left leaflet and the right leaflet, wherein the horizontal distance ("2H") is adjustable between a first horizontal distance ("2H1") and a second horizontal distance ("2H2"). In one example, the one or more actuators are ball screw linear actuators.

[0024] In another embodiment, the one or more actuators are connected to one or more drive mechanisms and adapted to be rotated counterclockwise so as to move the right leaflet and the left leaflet in a direction Ll, and be rotated clockwise so as to move the right leaflet and the left leaflet in a direction L2. The assistive apparatus may further include a support frame mounting base adapted to be secured to a toilet assembly. The support frame mounting base are connected to one or more back supporting legs.

[0025] In still another embodiment, the one or more back supporting legs are substantially vertical and physically connected to one or more floor mounting flanges to secure the assistive apparatus and prevent movement. Further, the assistive apparatus may include a backrest assembly having a backrest pad, a top support frame connected to the backrest pad, a bottom support frame connected to the top support frame with one or more adjustable knobs, and a support frame mounting base connected to the bottom support frame.

[0026] A method of using the assistive apparatus includes a user getting seated on top of an assistive apparatus on or about a toilet seat and press a "Down" button on a controller to lower the assistive platform of the assistive apparatus to be close to the toilet seat; and once seated, the user can press any of "Expand", "Retract", "Tilted", "Up" and/or "Down" buttons on the controller to adjust seat height of the assistive platform or the size of the and accommodate the dimensions of the user's buttocks. The method may further include, after using the toilet toileting is finished, the user can press the "UP" button on the controller to restore a right leaflet and a left leaflet to the original position and then lift the assistive platform up to assist the user in getting up from the toilet.

[0027] In one embodiment, the assistive apparatus includes a support frame mounting base; a supporting leg assembly comprising two front support; two or more upper support; and two knobs connected to the support frame mounting base via one or more base support; a grab bar assembly comprising two grab bars connected to any one of the two or more upper support of the supporting leg assembly, wherein the one or more grab bar is capable of rotating in 360 degrees at a horizontal plane; a front bar connected to one or more knobs, wherein the one or more knobs are adapted to adjust the width consist with the extension of the supporting leg assembly.

[0028] A method of using the assistive apparatus includes holding the grab bars or the foldaway handles to assist in getting up or sitting on a toilet.

[0029] In one embodiment, the support frame mounting base is connected between the supporting leg assembly and any sitting apparatus to be used, where the support frame mounting base is adapted to connect supporting leg assembly via knobs. In one aspect, the support frame mounting base is adapted to connect the sitting apparatus to be used at a stationary direction; in another aspect, the support frame mounting base is adapted to support the supporting leg assembly at a vertical position. [0030] In another embodiment, the supporting leg assembly includes two front supports; two or more upper supports; and two or more knobs connected to the support frame mounting base via one or more base support. In one aspect, the two or more knobs are adapted to adjust the height of the two or more front between a first place ("3H0") to a second place ("3H1"); In another aspect, the two or more knobs are adapted to adjust the length of the two or more upper support between a first place ("3L0") at a horizontal position to a second place ("3L1").

[0031] In still another embodiment the supporting leg assembly further comprising that the two or more knobs adapted to adjust the height of the two or more front support two or more knobs are adapted to adjust the height of the two or more front support at a vertical position; and the two or more knobs are adapted to adjust the length of the two or more upper support at a horizontal position.

[0032] In yet another embodiment, the grab bar assembly comprising two grab bars, wherein the two grab bars are connected to any one of the two or more upper support of the supporting leg assembly. In one aspect, the one or more grab bar is capable of rotating in 360 degrees at a horizontal plane. In another aspect, the supporting leg assembly is adapted to support the one or more grab bars.

[0033] In a further embodiment, the assistive apparatus further includes the front bar connected to a knob, wherein the knob is adapted to adjust the width consist with the extension of the supporting leg assembly. In one aspect, the knob is adapted to adjust the width between a first place ("W0") to a second place ("Wl").

BRTFF DFSCRTPTTON OF THE DRAWTNGS

[0034] So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments. The drawings are not necessarily to scale. The drawings are merely schematic representations, not intended to portray specific parameters of the invention.

[0035] Figure 1 is a perspective view of one example of an assistive apparatus having a buttock- spreading mechanism adapted to be positioned in a horizontal position according to one embodiment of the invention.

[0036] Figure 2 is a perspective view of another example of an assistive apparatus mounted on top of an exemplary toilet according to one embodiment of the invention.

[0037] Figure 3 is a perspective view of the assistive apparatus of Figure 2, where the buttock- spreading mechanism is adapted to be positioned in an elevated position according to an embodiment of the invention.

[0038] Figure 4 is a perspective view of one example of a top portion of a buttock- spreading mechanism having two adjustable leaflets according to another embodiment of the invention.

[0039] Figure 5 is a perspective view of operating a buttock-spreading mechanism to adjust and expand a distance between the two leaflets according to still another embodiment of the invention.

[0040] Figure 6 is a perspective view of one example of rotating an actuator for adjusting the location of a leaflet of a buttock- spreading mechanism according to yet another embodiment of the invention. [0041] Figure 7 is a perspective view of another example of rotating an actuator for adjusting the location of a leaflet of a buttock- spreading mechanism according to another embodiment of the invention.

[0042] Figure 8 is a top view of operating exemplary drive mechanisms of a buttock-spreading mechanism to move and adjust the positions of two leaflets according to another embodiment of the invention.

[0043] Figure 9 is a top view of an assistive platform of a buttock-spreading mechanism according to another embodiment of the invention.

[0044] Figure 10 is a top view of a buttock-spreading being positioned on top of a support frame mounting base mechanism in a pre-set position, showing two leaflets being spaced apart at a horizontal distance (e.g., at a H2 distance) and mounted on an assistive platform according to another embodiment of the invention shown in a retracted mode.

[0045] Figure 11 is a side view of a person's buttocks sitting on top of two leaflets positioned in a pre-set position, where the right and left leaflets are spaced at a horizontal distance (e.g., at a H2 distance) according to another embodiment of the invention.

[0046] Figure 12 is a top view of a buttock-spreading being positioned on top of a support frame mounting base mechanism in an expanded position, showing two leaflets being adjusted to be apart at a horizontal distance (e.g., at a HI distance) according to another embodiment of the invention.

[0047] Figure 13 is a side view of a person's buttocks sitting on top of two leaflets adjusted to be in an expanded position, where the right and left leaflets are spaced at a horizontal distance (e.g., at a HI distance) according to another embodiment of the invention.

[0048] Figure 14 is a perspective view of a backrest assembly mounted on a

support frame mounting base on top of two back supporting legs according to another embodiment of the invention.

[0049] Figure 15 is a side view of an assistive apparatus, showing the buttock- spreading mechanism in an elevated position according to an embodiment of the invention.

[0050] Figure 16 is a side view of an assistive apparatus, showing the buttock- spreading mechanism in a horizontal position according to one embodiment of the invention.

[0051] Figure 17 is a perspective view of an exemplary controller according to another embodiment of the invention.

[0052] Figure 18 is a bottom perspective view of another exemplary controller according to another embodiment of the invention.

[0053] Figure 19 is a flowchart of a method of operating an assistive apparatus

having a buttock-spreading mechanism according to another embodiment of the invention.

[0054] Figure 20A is a perspective view of one example of an assistive apparatus having an adjustable backrest assembly and a buttock-spreading mechanism adapted to be positioned in a horizontal position according to an embodiment of the invention.

[0055] Figure 20B is a perspective view of the assistive apparatus of Figure 20A where the buttock-spreading mechanism is adapted to be positioned in an elevated position on top of a toilet according to an embodiment of the invention. [0056] Figure 20C is a perspective view of the assistive apparatus of Figure 20A, where the buttock-spreading mechanism one example of a top portion of a buttock-spreading mechanism having two adjustable leaflets with adjustable backrest according to an embodiment of the invention.

[0057] Figure 20D is a perspective view of operating a buttock-spreading mechanism to adjust and expand a distance between the two leaflets according to still another embodiment of the invention.

[0058] Figure 21 is a side view of one example of an assistive toilet seat apparatus with adjustable backrest at highest position, wherein the height is " 1H1", according to one embodiment of the invention.

[0059] Figure 22 is a side view of another example of an assistive toilet seat apparatus with adjustable backrest at lowers position, wherein the height is " 1H0", according to one embodiment of the invention.

[0060] Figure 23A is a perspective view of one example of an assistive model of the adjustable backrest at lowest position, wherein the height is " 1H0", according to another embodiment of the invention.

[0061] Figure 23B is a perspective view of another example of an assistive model of the adjustable backrest at highest position, wherein the height is " 1H1", according to still another embodiment of the invention in a horizontal state.

[0062] Figure 24A is a perspective view of one example of a universal model of the adjustable backrest at lowest position, wherein the height is " 1H0", according to another embodiment of the invention.

[0063] Figure 24B is a perspective view of another example of a universal model of the adjustable backrest at highest position, wherein the height is " 1H1", according to still another embodiment of the invention in a horizontal state.

[0064] Figure 25A is a side view of one example of a universal model of the adjustable backrest at lowest position, wherein the height is " 1H0", according to another embodiment of the invention shown in a vertical state.

[0065] Figure 25B is a side view of another example of a universal model of the adjustable backrest at highest position, wherein the height is " 1H1", according to still another embodiment of the invention shown in a vertical state.

[0066] Figure 25C is a side view of still another example of a universal model of the adjustable backrest at lowest position, wherein the height is "HO", according to another embodiment of the invention shown in a backward tilt state (at an angle " bΐ").

[0067] Figure 25D is a side view of still another example of a universal model of the adjustable backrest at highest position, wherein the height is " 1H1", according to still another embodiment of the invention shown in a backward tilt state (at an angle " bΐ").

[0068] Figure 25E is a side view of yet another example of a universal model of the adjustable backrest at lowest position, wherein the height is " 1H0", according to still another embodiment of the invention shown in a forward tilt state (at an angle " b2").

[0069] Figure 25F is a perspective view of yet another example of a universal model of the adjustable backrest at highest position according to still another embodiment of the invention shown in a forward tilted position. [0070] Figure 26A is a side view of one example of a backrest assembly with operating an angle adjustment mechanism mounted on a toilet to be in an original vertical position, a backward tilted position (tilted at an angle " bq"), or a forward tilted state (at an angle "bΐ" according to another embodiment of the invention).

[0071] Figure 26B is a perspective view of another example of a universal model of the adjustable backrest mounted on a toilet backrest at highest position, wherein the height is "Hl", according to another embodiment of the invention.

[0072] Figure 26C is a front view of still another example of a universal model of the adjustable backrest mounted on a toilet backrest at highest position, wherein the height is "Hl", according to still another embodiment of the invention.

[0073] Figure 27A is a top view of one example of a universal model of the adjustable backrest according to another embodiment of the invention.

[0074] Figure 27B is a back perspective view of another example of a backrest assembly according to yet another embodiment of the invention.

[0075] Figure 28 is a sectional view of one example of an angle adjustment mechanism according to yet another embodiment of the invention.

[0076] Figure 29 is a perspective view of one example of an assistive toilet seat apparatus with adjustable seat height and a toilet according to an embodiment of the invention shown in an elevated state (at an angle of "a").

[0077] Figure 30 is a perspective view of another example of an assistive toilet seat apparatus with adjustable seat height and a toilet according to one embodiment of the invention shown in a flat state.

[0078] Figure 31 is a perspective view of one example of a powered lifting mechanism according to one embodiment of the invention shown in a flat state.

[0079] Figure 32 is a side view of another example of a powered lifting mechanism according to another embodiment of the invention shown in an elevated state (at an angle of "a").

[0080] Figure 33 is a side view of still another example of a powered lifting

[0081] mechanism according to still another embodiment of the invention in a flat state.

[0082] Figure 34 is a top view of one example of a buttock spreading mechanism on an assistive platform according to another embodiment of the invention.

[0083] Figure 35 is a side view of one example of a supporting leg mechanism according to another embodiment of the invention in a flat state.

[0084] Figure 36 is a perspective view of one example of operating a buttock spreading mechanism to expand the right leaflet and the left leaflet according to still another embodiment of the invention at the horizontal distance ("2H1").

[0085] Figure 37 is a perspective view of another example of operating a buttock spreading mechanism to retract the right leaflet and the left leaflet according to another embodiment of the invention at the horizontal distance ("2H2").

[0086] Figure 38 is a front view of still another example of a supporting leg mechanism according to yet another embodiment of the invention. [0087] Figure 39 is a front view of one example of an assistive toilet seat apparatus with adjustable back rest height according to yet another embodiment of the invention.

[0088] Figure 40 is a perspective view of one example of an assistive apparatus having an operating a rotatable grab bar adapted to rotate in 360 degrees at a horizontal plane, wherein a supporting leg assembly at a preset position (e.g., at 3L0, 3H0, and W0) according to another embodiment of the invention.

[0089] Figure 41 is a perspective view of another example of an assistive apparatus with rotatable grab bar, wherein a supporting leg assembly at a desired position (e.g., at 3L1, 3H1, and Wl) according in one position to the one embodiment of the invention shown in an extend state

[0090] Figure 42A is a sectional side view of one example of a grab bar assembly capable of rotating according to still another embodiment of the invention.

[0091] Figure 42B is a sectional top view of another example of a grab bar assembly capable of rotating according to still another embodiment of the invention.

[0092] Figure 43A is a side view of one example of an assistive apparatus having a rotatable grab bar, wherein the front support and upper support at a preset position (e.g., at 3L0, and 3H0) according to still another embodiment of the invention.

[0093] Figure 43B is a side view of another example of an assistive apparatus with rotatable grab bar, wherein the front support and upper support at a desired position

[0094] (e.g, at 3L1, and 3H1) according to yet another embodiment of the invention.

[0095] Figure 4C is a top view of still another example of an assistive apparatus with rotatable grab bar, wherein the rear support at a preset position (e.g., at W0) according to yet another embodiment of the invention.

[0096] Figure 43D is a top view of a further example of an assistive apparatus with rotatable grab bar, wherein the rear support at a desired position (e.g., at Wl) according to another embodiment of the invention.

[0097] Figure 43E is a front view of another example of an assistive apparatus with rotatable grab bar, wherein the rear support and front support at a preset position (e.g., at W0, and 3H0) according to another embodiment of the invention.

[0098] Figure 43F is a front view of still another example of an assistive apparatus with rotatable grab bar, wherein the rear support and front support at a desired position (e.g., at Wl, and 3H1) according to another embodiment of the invention.

[0099] Figure 44 is a perspective view of one example of an assistive apparatus with back rest according to one embodiment of the invention.

[00100] Figure 45 is a perspective view of one example of the assistive apparatus with back rest and back supporting legs, wherein the front support and back supporting legs at a desired position (e.g., at 3H1) according to one embodiment of the invention.

[00101] Figure 46 is a perspective view of another example of the assistive apparatus with back rest according to another embodiment of the invention.

[00102] Figure 47 is a perspective view of one example of the assistive apparatus, wherein the assistive apparatus placed over a toilet base and toilet bowl according to one embodiment of the invention. [00103] Figure 48 is a perspective view of one example of operating a foldaway handle assembly, wherein the foldaway handle is capable of folding away and rotating

[00104] according to one embodiment of the invention.

[00105] Figure 49A is a sectional view of one example of the foldaway handle assembly at a folded position according to one embodiment of the invention.

[00106] Figure 49B is a sectional view of another example of operating a foldaway handle assembly at a preset position, wherein the foldaway handle is capable of folding away and rotating according to another embodiment of the invention.

[00107] Figure 49C is a sectional view of one example of a retracted foldaway handle assembly at a preset position (e.g., at 3L0) according to one embodiment of the invention.

[00108] Figure 49D is a sectional view of another example of an expanded foldaway handle assembly at a desired position (e.g., at 3L1) according to one embodiment of the invention.

[00109] Figure 50 is a perspective view of one example of a foldaway handle model of an assistive apparatus with rotatable grab bar and a toilet according to one embodiment of the invention.

[00110] Figure 51 is a perspective view of one example of a foldaway model of an assistive apparatus with a rotatable foot rest bar assembly according to one embodiment of the invention.

PET ATT. ED DESCRTPTTON

Assistive Apparatus With Buttocks Spreading Mechanism

[00111] The present invention includes an assistive apparatus with a buttock- spreading mechanism for providing weight support as well as spreading a person's buttocks while using a toilet. The apparatus can be placed directly over a rim of a toilet bowl, a seat of a toilet seat system, a shower chair or a bedside commode. The buttock- spreading mechanism of the assistive apparatus as described in detail below can accommodates different personal sizes (different distances between different persons' buttocks). When an individual person uses a toilet coupled with the assistive apparatus with the buttock-spreading mechanism described herein, the weight of the individual person can be supported, not only by the toilet but also the assistive apparatus of the current invention, thereby avoiding distribution of all weights of the individual person to the toilet itself.

[00112] In addition, the assistive apparatus equipped with an expandable buttock spreading mechanism is designed to be placed on any kinds of a toilet, any shower chairs, or other devices such that when a person uses the toilet the weight of the person is transferred from the toilets to the assistive apparatus, avoiding distribution of all of the person's weight directly to the toilet itself.

[00113] Figure 1 illustrates a perspective view of one example of an assistive apparatus 100, which generally includes a buttock- spreading mechanism 120, a supporting leg mechanism 140, and a lifting mechanism 170. An individual person can operate the assistive apparatus 100 for sitting down on top of the assistive apparatus

100 and operating a controller 180. For example, a person may sit on top of the assistive apparatus with the help of two or more armrests (e.g., grab handles 192, 194 being attached to the assistive platform 150 of the assistive apparatus 100), and control the assistive apparatus using the controller 180. The controller 180 can be a wireless remote control or a wired controller. As an example, the controller 180 can be easily mounted and coupled to one of the grab handles 192, 194 for easy access and personal use.

[00114] The assistive apparatus 100 can also include a power unit 130, being positioned, for example, adjacent the supporting leg mechanism 140 or near the base of a toilet. The power unit 130 may contain internal electric circuits and one or more motors therein for providing powers and control circuits for operating the assistive apparatus 100.

[00115] In one embodiment, the buttock- spreading mechanism 120 includes a right leaflet 122 and a left leaflet 123 connected to a leaflet support base 124, which is mounted on a top side of an assistive platform 150. The leaflet support base 124 includes a housing with one or more opening on one side for the right leaflet 122 and the left leaflet 123 connected thereto to be adjustably moving around by having at least one drive mechanism (e.g., drive mechanisms 128A, 1288, etc.) coupled or attached to the leaflet support base 124. In addition, one or more actuators are positioned within the housing of the leaflet support base 124 and connected to the right leaflet 122 and the left leaflet 123 for moving the right leaflet 122 and the left

leaflet 123 connected thereto.

[00116] The supporting leg mechanism 140 is adapted to support the assistive platform 150 and includes two or more front supporting legs 142. In some embodiment, the supporting leg mechanism 140 may optionally include two or more back supporting legs 147. In one embodiment, the front supporting legs 142 and/or the back supporting legs 147 can be secured on a platform or to the ground (e.g., via one or more floor mounting flange 145 at the bottom ends of the front supporting legs 142 and/or the back supporting legs 147) for supporting the weight of the assistive apparatus 100 and a person who may sit on top of the assistive apparatus 100. Because of the strong structural support of the assistive apparatus, a suitable person's weight to be supported by the assistive apparatus 100 may be a very large range of between 30 pounds and 300 pounds or larger, such as 100 pounds or larger, or 200 pounds or larger, etc.

[00117] Each of the front supporting legs 142 and the back supporting legs 147 is substantially vertical and may be physically joined to a floor mounting flange (e.g., the floor mounting flange 145). The floor mounting flange 145 is secured with four floor mounting bolts to prevent movement and ensure a stable foundation. Also, a connector 143 can be coupled to each of the front supporting legs 140 to join to a front bar 148, which may be optionally jointed to a frame connector 141 to prevent horizontal movement and vibration. The two front supporting legs 140 connect to the assistive platform 150 via a hinge 146. This feature allows the assistive platform 150 to be able to be tilt forward at an approximate angle of a° (as shown in Figure 3).

[00118] Two or more lifting mechanisms (e.g., a lifting mechanism 170) are positioned on the both sides of the buttock-spreading mechanism 120 and provided to support and lift the buttock- spreading mechanism 120 from a horizontal position (e.g., as shown in Figures 1 and 2. To an elevated position (e.g., as shown in Figure 3). The lifting mechanism 170 may include one or more arms and/or lifting shafts (e.g., a lifting shaft 171 and one or lifting shafts 172 coupled together to be operated by an actuator assembly for lifting the buttock spreading mechanism 120 by raising the assistive platform 150 between a horizontal position (e.g., the assistive platform 150 being positioned as shown in Figure 2) and an elevated/angled position (e.g., the assistive platform 150 being positioned as shown in Figure 3).

[00119] The actuator assembly of the lifting mechanism 170 may include a ball screw linear actuator

174 and one or more nuts 176, 178 connected to the lifting shafts 171, 172 and adapted to lift the assistive platform 150. The movement of the actuator assembly of the lift mechanism 170 is driven by the power unit 130. Optionally, the ball screw linear actuator 174 may be positioned between the front supporting legs 142 and the back supporting legs 147 in order to connect the front supporting legs 142 and the back supporting legs 147 (e.g., via one or more connectors 144) and provide structural support to the front supporting legs 142 and/or the back supporting legs 147.

[00120] In addition, the assistive apparatus 100 can optionally include a back support (e.g., a backrest assembly 110, etc.) suitable for a person sitting on top of the assistive apparatus 100 to rest his or her back thereon. The backrest assembly 110 can be mounted on top of a support frame mounting base 116, which is positioned on top of the back supporting legs 147. The backrest assembly 110 on top of the support frame mounting base 116 may include a top support frame 114 and a bottom support frame 115, which are connected together by one or more fastening elements (e.g., one or more fastening knob 118). One or more holes 117 are located on the top support frame 114 and/or the bottom support frame 115. In one embodiment, the height of the backrest assembly 110 is adjustable, for example, by adjusting the connection of the top support frame 114 and the bottom support frame 115 via the adjustment of the positions of the holes 117 coupled to the fastening knobs 118). The backrest assembly 110 may also include a back rest padl 12, which can be a cushioned support for providing comfort and back support to the person sitting on top of the assistive apparatus 100.

[00121] Figure 2 illustrate an exemplary assistive apparatus being mounted on top of an exemplary toilet where the buttock-spreading mechanism 120 is lowered in a horizontal position according to one embodiment of the invention. In the example of Figure 2, the assistive apparatus 100 can be attached to a toilet having a toilet base 220 and a toilet bowl 210. In another example, the toilet can be any of a conventional toilet, commonly found in residential, commercial, and institutional environments. In this position, the assistive platform 150 is adapted to touch and rest on top of the support frame mounting base 116.

[00122] Figure 3 is a perspective view of the assistive apparatus of Figure 2, where the buttock spreading mechanism 120 is adapted to be positioned in an elevated position on top of the toilet bowel 210. For example, the buttock-spreading mechanism 120 can be elevated by the lifting mechanism 170 attached to both sides of the assistive platform 150 of the assistive apparatus 100. The lifting mechanism 170 is adapted to lift the assistive platform 150, where one or more ball screw linear actuators 174 of the lifting mechanism 170 are adapted to expand and contract, thereby driving the lifting shafts 171, 172 up and down so as to adjust the height of the assistive platform 150 and the buttock spreading mechanism 120 thereon to an desirable elevated position. Thus, the assistive platform 150, when being lifted to an elevated position, is adapted to be away from the support frame mounting base 116 such that a line A- A' (defined as from a top end of the front supporting leg 142 to a top end of the back supporting leg 147) and a line B-B' (defined as from a top end of the front supporting leg 142 to a bottom end of the assistive platform 150) is crossed at an angle“a”. [00123] In one embodiment, as shown in Figure 3, the buttock-spreading mechanism 120 can be positioned in an elevated position elevated at an angle“a”. In another embodiment, the buttock- spreading mechanism 120 can be positioned on top of the toilet bowel 210 in a horizontal position (as shown in Figure 2, where the angle“a” equals to zero (0)).

[00124] Figure 4 and Figure 5 illustrate one example of a top portion of the buttock- spreading mechanism 120 of the assistive apparatus 100, where the right leaflet 122 and the left leaflet 123 are adapted to be moved and operated in a contracted position and an expanded position, respectively. As shown in Figures 4- 5, the right leaflet 122 and the left leaflet 123 are connected to an actuator 126A and an actuator 126B, respectively, inside the housing of the leaflet support base 124 via one or more openings 127A, 127B. A horizontal distance ("FI") between the right leaflet 122 and the left leaflet 123 can be adjustable via one or more drive mechanisms 128A, 128B positioned around the leaflet support base 124, e.g., on both sides of the leaflet support base 124. The one or more drive mechanisms 128A, 1288 can be connected to one or more actuators 126A, 1268 for driving and positioning the right leaflet 122 and the left leaflet 123, respectively.

[00125] The right leaflet 122 and the left leaflet 123 are positioned on a top side of the assistive platform

155 and connected to one or more actuators (e.g. the actuators 126A, 1268) positioned within the leaflet support housing 124. For example, the positions of the right leaflet 122 and the left leaflet 123 can be adjusted by the actuators 126A, 1268 and the drive mechanisms 128A, 1288 such that a horizontal distance between the mid portions of the right leaflet 122 and the left leaflet 123 is adjustably to between a first horizontal distance ("HI"), as shown in Figure 5, and a second horizontal distance ("H2"), as shown in Figure 4.

[00126] In one embodiment, the one or more actuators 126A, 1268 of the buttock- spreading mechanism

120 are adapted to adjust a horizontal distance ("H") between the right leaflet 122 and the left leaflet 123 from the second horizontal distance ("H2") to the first horizontal distance ("HI"), thereby spreading the buttocks of a person sitting on top of the buttock-spreading mechanism 120. Figure 6 illustrates an example for operating the drive mechanism 128A and the actuator 126A in a counterclockwise direction in order to move the right leaflet

122 in an LI direction for spreading the buttocks of a person and expanding the right leaflet 122 to an expanded position.

[00127] In another embodiment, the one or more actuators 126A, 126B of the buttock-spreading mechanism 120 are adapted to adjust a horizontal distance ("H") between the right leaflet 122 and the left leaflet

123 from a first horizontal distance ("HI") to a second horizontal distance ("H2"), thereby retracting the buttocks of a person sitting on top of the buttock- spreading mechanism 120. Figure 7 illustrates an example for operating the drive mechanism 128A and the actuator 126A in a clockwise direction in order to move the right leaflet 122 in an L2 direction for retracting the buttocks of a person and returning the right leaflet 122 to a contacted position.

[00128] Figure 8 is a top view of the buttock-spreading mechanism 120 and illustrates examples for the movements of the right leaflet 122 and the left leaflet 123. As shown in Figure 8, a controller 180 can be used to control the drive mechanisms 128A, 1288 as well as the actuators 126A, 1268 (not shown) inside the leaflet support base 124 to move the right leaflet 122 and the left leaflet 123. One example of the controller 180 may be a control with several control buttons (e.g., an exemplary controller as shown Figures 17 and 18). [00129] Figure 9 illustrate one example of the assistive platform 150 of the buttock- spreading mechanism 120 without showing the leaflet support base 124, the right leaflet 122 or the left leaflet 123. In the example of the assistive platform 150 as shown in Figure 9, the assistive platform 150 may contain an opening 152, which is preferably being centered and aligned with a centered space between the right leaflet 122 and the left leaflet 123. The shapes and sizes of the opening 152 of the assistive platform 150 are not limiting and can be any of oval, circular, rectangular shapes, etc.

[00130] Figures 10-13 illustrates top views and side views of the buttock- spreading mechanism 120 of the assistive apparatus 100 and show that the positions of the right leaflet 122 and the left leaflet 123 are capable of being spaced apart and expandable from a centered position to an expanded position in order to spread a right buttock and/or a left buttock of an individual person while he or she is sitting on top of the assistive apparatus comfortably.

[00131] In Figures 10-11, showing top view and side view of the buttock- spreading mechanism 120, it is shown that the positions of the right leaflet 122 and the left leaflet 123 are in its centered position such that the horizontal distance ("FI") between the right leaflet 122 and the left leaflet 123 is in the second horizontal distance ("H2"). In Figures 12-13, top view and side view of the buttock-spreading mechanism 120 are shown and the positions of the right leaflet 122 and the left leaflet 123 of the buttock-spreading mechanism 120 are in its expanded position such that the horizontal distance ("FI") between the right leaflet 122 and the left leaflet 123 is in the first horizontal distance ("HI") and a right buttock and/or a left buttock of an individual person sitting on top of the assistive apparatus can be comfortably spread and cleaned.

[00132] Figure 14 is one example of the backrest assembly 110 being able to coupled to the assistive apparatus 100 of the invention. As shown in Figure 14, the backrest assembly 110 may be secured to the support frame mounting base 116 via one or more mounting flanges 119 such that a person sitting on top of the assistive apparatus 100 is able to rest his or her back on the back rest pad 112 of the backrest assembly The. support frame mounting base 116 is generally positioned near the rear end of a toilet bowel, for example by securing with two mounting bolts 111 and can sometimes be further supported by a pair of the back supporting legs 147 attached thereto. Each back supporting leg 147 is preferably substantially vertical and physically secured to the ground (e.g., via the floor mounting flange 145 as shown in Figure 1).

[00133] Figure 15 shows one example of a side view of the assistive apparatus 100 of the example at

Figure 3, where the buttock-spreading mechanism 120 is in an elevated position, tilted at an angle“a” between line A-A' and line B-B'. Figure 16 shows one example of a side view of the assistive apparatus 100 at Figure 1, where the buttock-spreading mechanism 120 is in a horizontal position, and the angle“a” equals to zero (horizontal line A-A').

[00134] The lifting mechanism 170 is controlled by the controller 180, which in turn is adapted to control the power unit 130, to adjustably lift up (as shown in Figure 15 in a lifted tilted position) or lower down (as shown in Figure 16 in a lowered horizontal position). The power unit 130 is adapted to the rotate the ball screw linear actuators 174 in clockwise or counterclockwise directions such that the lifting shafts 172A, 172B are able to move its own locations, thereby moving the assistive platform 150 of the buttock-spreading mechanism 120·, which is connected to the lifting shaft 171, which in turn is connected to the lifting shafts 172A, 172B, and lifting a person sitting on top of the buttock-spreading mechanism 120. To lift up the assistive platform 150, the power unit 130 rotates the ball screw linear actuator 174 to move the nuts 176, 178 from their spaced-apart position to their centered position. The top side of the lifting shafts 172 A, 172B are connected to the lifting shaft 171 to push the lifting shaft 171 up and generate an upward force to lift the assistive platform in a vertical direction to a higher position. To lower down the assistive platform 150, the power unit 130 rotates the ball screw linear actuator 174 (in an opposite direction as compared to lifting) so that the nuts 176, 178 are moved from their centered position to be spaced apart. The top side of the lifting shafts 172 A, 172B are thus lowered down in positions, thereby lowering down the assistive platform 150 in a vertical direction to a lower position.

[00135] Figures 17-18 illustrate one example of the controller 180 in its top perspective view and bottom perspective view, respectively, according to one or more embodiments of the invention. The controller 180 may include a top side 182, one or more bottom sides 188, 189, and one or more side surfaces 188. The top side 182 may include several control buttons, such as a control panel with 5-ways control button, e.g., control buttons 184 as shown in Figure 17. The controller 180 may be a wired or wireless controller, optionally with a charging slot 185. which may serve as a charging port of the controller 180 for power supply. The controller 180 may be adapted to be clipped on one of the grab handles 192, 194, for example, by using one or more U shape connecting wings 186, 187.

[00136] Figure 19 is a flowchart of an example of a method 200 of operating an assistive apparatus having a buttock-spreading mechanism according to another embodiment of the invention. The method 300 includes a step 310 of initially providing a buttock- spreading mechanism of an assistive apparatus, such as the buttock- spreading mechanism 120 of the assistive apparatus 100 as described above, in an elevated position or a horizontal position on top of a toilet so that a person using the assistive apparatus is able to sit on the buttock spreading mechanism a ton of the toilet at step 320.

[00137] At step 330, the person is able to lower down the buttock- spreading mechanism of the assistive apparatus from an initial position (e.g., an elevated position) to a horizontal position via a controller (e.g., the controller 180 connected to the assistive apparatus 100) and comfortably sit on the buttock-spreading mechanism of the assistive apparatus.

[00138] At step 340 and step 350, the person using the assistive apparatus is able to adjust the positions of the leaflets of the buttock- spreading mechanism, such as by expanding a horizontal distance between a right leaflet and a left leaflet of the buttock- spreading mechanism from a second distance (H2) to a first distance (Hl), or retracting the horizontal distance between a right leaflet and a left leaflet of the buttock- spreading mechanism from the first distance (Hl) to the second distance (H2).

[00139] Finally, at step 360, the person using the assistive apparatus is able to operate the assistive apparatus via the controller to lift up the buttock- spreading mechanism of the assistive apparatus to an elevated position to assist the person to get up easy. In addition, the person using the assistive apparatus is able to use the controller and adjust the positions of the leaflets of the assistive apparatus via the controller to a desirable position. For example, the person may use the controller to move the positions of the left and right leaflets to retract them back to a position when the buttock-spreading mechanism is at an initial elevated position. Assistive Apparatus With An Adjustable Backrest Assembly

[00140] The present invention includes an assistive apparatus for providing a mechanism of backrest height adjustment while using assistive apparatus on top of a toilet. The present invention generally an assistive apparatus and a method of using the assistive apparatus. The assistive apparatus includes a back support portion comprises a backrest frame and a back pad attached on the backrest frame for supporting the human back. The backrest frame provides means for adjusting height of the back pad to accommodate different height of the human back. The angle adjustment portion connects to the back support portion with the toilet mounting portion and provides an angle adjustment means for different position of sitting on toilet. An assistive apparatus is disclosed to provide support for a human's back while sitting atop of a toilet. The assistive apparatus includes a back support portion, a height adjustment portion, an angle adjustment portion and a toilet mounting portion.

[00141] A method of using the assistive apparatus include following steps: i) a user lean against the assistive platform and press the "Down" button on a controller to lower the assistive apparatus platform; ii) once seated, the user can press the "Moving Up" or "Moving Down" button on the controller to adjust the height of a back rest pad to accommodate the user's back; iii) in addition, the user can press "Forward" or "Backward" button on the controller to adjust the angle of the support frame to accommodate the user's back; iv) after toileting is finished, the user can press the "Up" button on the controller to restore the right leaflet and a left leaflet to the original position and then lift the assistive platform up to assist the user in getting up from the toilet.

[00142] In one embodiment, the assistive apparatus includes one or more adjustable knobs are capable of moving from a first vertical position where the top support frame is at a base height (" 1H0") to a second vertical position where the top support frame is at a desirable height (" 1H1").

[00143] In another embodiment, the assistive apparatus further includes one or more angle adjust knobs connected to the bottom support frame and the support frame mounting base, wherein the one or more angle adjust knobs are adapted to adjust the angle of the support frame(top and bottom) between a first place (C) to a second place (D}, tiled at an angle ("bΐ"); or a first place (C) to a third place (E), tiled at an angle ("b2") via an upper element of the top support frame

[00144] In a further embodiment, the assistive apparatus further includes a lifting assembly connected to the assistive platform and adapted to lift the assistive platform, wherein the lifting assembly comprising one or more lifting shafts adapted to lift the assistive platform so as to position the assistive platform tilted between a first stationery position to a second tilted position, tiled at an angle (“a”) horizontally the“a” angle is adjusted to be between 0° and 80°.

[00145] The apparatus can be placed directly over a rim of a toilet bowl or a seat of a toilet seat system, a shower chair or a bedside commode. The back rest assembly with adjustment mechanism of the assistive apparatus as described in detail below can accommodates different personal height and back angle. When an individual person uses a toilet, the assistive apparatus with back rest assembly with adjustment mechanism described herein, the height of the back rest pad, and the angle of the back rest assembly, not only by the toilet but also the assistive apparatus of the current invention, thereby accommodates different personal height and back angle.

[00146] In addition, the assistive apparatus equipped with back rest assembly with adjustment mechanism is designed to be placed on any kinds of a toilet, any shower chairs, or other devices such that when a person uses the toilet the back rest assembly could be adjust to different height and angle.

[00147] Figure 20A illustrates a perspective view of one example of an assistive apparatus 1100, which generally includes a backrest assembly 1110, a buttock-spreading mechanism 1120, a supporting leg mechanism 1140, and a lifting mechanism 1170. An individual person can operate the assistive apparatus 1100 for sitting down on top of the assistive apparatus 1100 and operating a controller 1180. For example, a person may sit on top of the assistive apparatus with the help of two or more armrests (e.g., grab handles 1192, 1194 being attached to the assistive platform 1150 of the assistive apparatus 1100), and control the assistive apparatus using the controller 1180. The controller 1180 can be a wireless remote control or a wired controller. As an example, the controller 1180 can be easily mounted and coupled to one of the grab handles 1192, 1194 for easy access and personal use.

[00148] The assistive apparatus 1100 can also include a power unit 1130, being positioned, for example, adjacent the supporting leg mechanism 1140 or near the base of a toilet. The power unit 1130 may contain internal electric circuits and one or more motors therein for providing powers and control circuits for operating the assistive apparatus 1100.

[00149] In one embodiment, the buttock- spreading mechanism 1120 includes a right leaflet 1122 and a left leaflet 1123 connected to a leaflet support base 1124, which is mounted on a top side of an assistive platform 1150. The leaflet support base 1124 includes a housing with one or more opening on one side for the right leaflet 1122 and the left leaflet 1123 connected thereto to be adjustably moving around by having at least one drive mechanism (e.g., drive mechanisms 1128A; 1128B, etc.) coupled or attached to the leaflet support base 1124. In addition, one or more actuators are positioned within the housing of the leaflet support base 1124 and connected to the right leaflet 1122 and the left leaflet 1123 for moving the right leaflet 1122 and the left leaflet 1123 connected thereto.

[00150] The supporting leg mechanism 1140 is adapted to support the assistive platform 1150 and includes two or more front supporting legs 1142. In some embodiment, the supporting leg mechanism 1140 may optionally include two or more back supporting legs 1147. In one embodiment, the front supporting legs 1142 and/or the back supporting legs 1147 can be secured on a platform or to the ground (e.g., via one or more floor mounting flange 1145 at the bottom ends of the front supporting legs 1142 and/or the back supporting legs 1147) for supporting the weight of the assistive apparatus 1100 and a person who may sit on top of the assistive apparatus 1100. Because of the strong structural support of the assistive apparatus, a suitable person's weight to be supported by the assistive apparatus 1100 may be a very large range of between 30 pounds and 300 pounds or larger, such as 100 pounds or larger, or 200 pounds or larger, etc.

[00151] Each of the front supporting legs 1142 and the back supporting legs 1147 is substantially vertical and may be physically joined to a floor mounting flange (e.g., the floor mounting flange 1145). The floor mounting flange 1145 is secured with four floor mounting bolts to prevent movement and ensure a stable foundation. Also, a connector 1143 can be coupled to each of the front supporting legs 1140 to join to a front bar 1148, which may be optionally jointed to a frame connector 1141 to prevent horizontal movement and vibration. The two front supporting legs 1140 connect to the assistive platform 1150 via a hinge 1146. This feature allows the assistive platform 1150 to be able to be tilt forward at an approximate angle of a° (as shown in Figure 20B).

[00152] Two or more lifting mechanisms (e.g., a lifting mechanism 1170) are positioned on the both sides of the buttock- spreading mechanism 1120 and provided to support and lift the buttock-spreading mechanism 1120 from a horizontal position (e.g., as shown in Figures 20 and 21. To an elevated position (e.g., as shown in Figure 22). The lifting mechanism 1170 may include one or more arms and/or lifting shafts (e.g., a lifting shaft 1171 and one or lifting shafts 1172 coupled together to be operated by an actuator assembly for lifting the buttock-spreading mechanism 1120 by raising the assistive platform 1150 between a horizontal position and an elevated/angled position (e.g., the assistive platform 1150 as shown in Figure 20B).

[00153] The actuator assembly of the lifting mechanism 1170 may include a ball screw linear actuator

1174 and one or more nuts 1176, 1178 connected to the lifting shafts 1171, 1172 and adapted to lift the assistive platform 1150. The movement of the actuator assembly of the lift mechanism 1170 is driven by the power unit 1130. Optionally, the ball screw linear actuator 1174 may be positioned between the front supporting legs 1142 and the back supporting legs 1147 in order to connect the front supporting legs 1142 and the back supporting legs 1147 (e.g., via one or more connectors 1144) and provide structural support to the front supporting legs 1142 and/or the back supporting legs 1147.

[00154] In addition, the assistive apparatus 1100 can optionally include a back support (e.g., a backrest assembly 1110, etc.) suitable for a person sitting on top of the assistive apparatus 1100 to rest his or her back thereon. The backrest assembly 1110 can be mounted on top of a support frame mounting base 1116, which is positioned on top of the back supporting legs 1147. The backrest assembly 1110 on top of the support frame mounting base 1116 may include a top support frame 1114 and a bottom support frame 1115, which are connected together by one or more fastening elements (e.g., one or more fastening knob 1118). One or more holes 1117 are located on the top support frame 1114 and/or the bottom support frame 1115. In one

embodiment, the height of the backrest assembly 1110 is adjustable, for example, by adjusting the connection of the top support frame 1114 and the bottom support frame 1115 via the adjustment of the positions of the holes 1117 coupled to the fastening knobs 1118). The backrest assembly 1110 may also include a back rest padl 12, which can be a cushioned support for providing comfort and back support to the person sitting on top of the assistive apparatus 1100.

[00155] The backrest assembly 1110 which serves as a back support. The backrest assembly 1110 may include a backrest 1112, a top supporting frame 1114, a bottom supporting frame 1115, a support frame mounting base 1116, a hole 1117 and a fastening knob 1118 for height adjustment.

[00156] Figure 20B is a perspective view of the assistive apparatus of Figure 20A, where the buttock spreading mechanism 1120 is adapted to be positioned in an elevated position on top of the toilet bowel 210. For example, the buttock-spreading mechanism 1120 can be elevated by the lifting mechanism 1170 attached to both sides of the assistive platform 1150 of the assistive apparatus 1100. The lifting mechanism 1170 is adapted to lift the assistive platform 1150, where one or more ball screw linear actuators 1174 of the lifting mechanism 1170 are adapted to expand and contract, thereby driving the lifting shafts 1171, 1172 up and down so as to adjust the height of the assistive platform 1150 and the buttock spreading mechanism 1120 thereon to an desirable elevated position. Thus, the assistive platform 1150, when being lifted to an elevated position, is adapted to be away from the support frame mounting base 1116 such that a line A- A' (defined as from a top end of the front supporting leg 1142 to a top end of the back supporting leg 1147) and a line B-B' (defined as from a top end of the front supporting leg 1142 to a bottom end of the assistive platform 1150) is crossed at an angle“a”. In one embodiment, as shown in Figure 20B, the buttock- spreading mechanism 1120 can be positioned in an elevated position elevated at an angle“a”. In another embodiment, the buttock-spreading mechanism 1120 can be positioned on top of the toilet bowel 210 in a horizontal position (as shown in Figure 20A, where the angle“a” equals to zero (0)).

[00157] Figure 20C and Figure 20D illustrates one example of a top portion of the buttock- spreading mechanism 1120 of the assistive apparatus 1100, where the right leaflet 1122 and the left leaflet 1123 are adapted to be moved and operated in a contracted position and an expanded position, respectively. As shown in Figures 20C-20D, the right leaflet 1122 and the left leaflet 1123 are connected to an actuator 1126A and an actuator 1126B, respectively, inside the housing of the leaflet support base 1124 via one or more openings 1127A, 1127B. A horizontal distance (" 1H") between the right leaflet 1122 and the left leaflet 1123 can be adjustable via one or more drive mechanisms 1128A, 1128B positioned around the leaflet support base 1124, e.g., on both sides of the leaflet support base 1124. The one or more drive mechanisms 1128A, 1128B can be connected to one or more actuators 1126A, 1126B for driving and positioning the right leaflet 1122 and the left leaflet 1123, respectively.

[00158] The right leaflet 1122 and the left leaflet 1123 are positioned on a top side of the assistive platform 1155 and connected to one or more actuators (e.g., the actuators 1126A, 1126B) positioned within the leaflet support housing 1124. For example, the positions of the right leaflet 1122 and the left leaflet 1123 can be adjusted by the actuators 1126A, 1126B and the drive mechanisms 1128A, 1128B such that a horizontal distance between the mid portions of the right leaflet 1122 and the left leaflet 1123 is adjustably to between a first horizontal distance (" 1H1"), as shown in Figure 20D, and a second horizontal distance (" 1H2'), as shown in Figure 20C.

[00159] In one embodiment, the one or more actuators 1126A, 1126B of the buttock- spreading mechanism 1120 are adapted to adjust a horizontal distance (" 1H") between the right leaflet 1122 and the left leaflet 1123 from the second horizontal distance ("H2") to the first horizontal distance ("Hl"), thereby spreading the buttocks of a person sitting on top of the buttock-spreading mechanism 1120. Figure 25 illustrate an example for operating the drive mechanism 1128A and the actuator 1126A in a counterclockwise direction in order to move the right leaflet 1122 in an Ll direction for spreading the buttocks of a person and expanding the right leaflet 1122 to an expanded position.

[00160] In another embodiment, the one or more actuators 1126A, 1126B of the buttock- spreading mechanism 1120 are adapted to adjust a horizontal distance (" 1H") between the right leaflet 1122 and the left leaflet 1123 from a first horizontal distance (" 1H1") to a second horizontal distance (" 1H2"), thereby retracting the buttocks of a person sitting on top of the buttock-spreading mechanism 1120.

[00161] Figure 21 illustrates a method of operating the height adjustment mechanism for the backrest assembly 1110 according to one or more embodiments of the invention. As shown in Figure 21, the fastening knob 1118 is used to secure the position of the backrest 1112 by locking into the hole 1117. Once the highest height has been determined, the distance between the top supporting frame 1114 and the bottom supporting frame 1115 will be fixed at a height " 1H1". As shown in Figure 22, the distance between top supporting frame

1114 and the bottom supporting frame 1115 is at a height " 1H0" which the position of the backrest 1112 is at the lowest level. To ensure the stability, the bottom supporting frame 1115 is secured on the support frame mounting base 1116 with a bolt 1119.

[00162] In addition, Figure 21 shows the lifting mechanism 1170 comprising a top supporting shaft

1171, two bottom supporting shafts 1172A & 1172B, a ball screw linear actuator 1174 driven by the power unit 1130, and two nuts 1176 & 1178. To ensure a stable foundation, the ball screw linear actuator 1174 connects to the front supporting leg 1142 via a connector 1144, and the front bar 1148 connects to the front supporting leg 1142 via a connector 1143 on the both sides. The assistive platform is also connected to the front supporting leg 1142 with a hinge 1146 which enables the assistive platform 1150 to tilt forward while a user uses a controller 1180 to activate the lifting mechanism 1170.

[00163] Figure 22 illustrates a method of operating the height adjustment mechanism according to one or more embodiments of the invention. As shown in Figure 22, the fastening knob 1118 is used to secure the position of the backrest 1112 by locking into the hole 1117. Once the highest height has been determined, the distance between the top supporting frame 1114 and the bottom supporting frame 1115 will be fixed at a height " 1H1". As shown in Figure 22, the distance between top supporting frame 1114 and the bottom supporting frame

1115 is at a height "HO" which the position of the backrest 1112 is at the lowest level. To ensure the stability, the bottom supporting frame 1115 is secured on the support frame mounting base 1116 with a bolt 1119.

[00164] Figure 22 also shows the lifting mechanism 1170 comprising a top supporting shaft 1171, two bottom supporting shafts 1172A & 1172B, a ball screw linear actuator 1174 driven by the power unit 1130, and two nuts 1176 & 1178. To ensure a stable foundation, the ball screw linear actuator 1174 connects to the front supporting leg 1142 via a connector 1144, and the front bar 1148 connects to the front supporting leg 1142 via a connector 1143 on the both sides. The assistive platform is also connected to the front supporting leg 1142 with a hinge 1146 which enables the assistive platform 1150 to tilt forward while a user uses a controller 1180 to activate the lifting mechanism 1170.

[00165] FIG. 23 A illustrates a perspective view of the backrest assembly 1110 of the present invention is shown. FIG. 23A shows the distance between the top supporting frame 1114 and the bottom supporting frame 1115 is at a height " 1H1" when the backrest 1112 is at the highest level. FIG. 23B shows the distance between the top supporting frame 1114 and the bottom supporting frame 1115 is at a height " 1H0" when the backrest 1112 is at the lowest level.

[00166] FIG. 23B illustrates a perspective view of the backrest assembly 1110 of the present invention is shown. FIG. 23A shows the distance between the top supporting frame 1114 and the bottom supporting frame 1115 is at a height " 1H1" when the backrest 1112 is at the highest level. FIG. 23B shows the distance between the top supporting frame 1114 and the bottom supporting frame 1115 is at a height " 1H0" when the backrest 1112 is at the lowest level.

[00167] FIG. 24A illustrates a perspective view of a universal backrest assembly 1410 of the present invention is shown. The universal backrest assembly 1410 includes a backrest 1412, a bottom fasten knob 1413 for angle adjustment, a top supporting frame 1414, a bottom supporting frame 1415, a support frame mounting base 1416, a hole 1417, a top fasten knob 1418 for height adjustment, and an upper connect support frame 1424. As shown in FIG. 24A, the distance between the top supporting frame 1414 and the bottom supporting frame 1415 is at a height " 1H1" when the backrest 1412 is at the highest level. FIG. 24B shows the distance between the top supporting frame 1414 and the bottom supporting frame 1415 is at a height " lHo" when the backrest 1412 is at the lowest level.

[00168] FIG. 24B illustrates a perspective view of a universal backrest assembly 1410 of the present invention is shown. The universal backrest assembly 1410 includes a backrest 1412, a bottom fasten knob 1413 for angle adjustment, a top supporting frame 1414, a bottom supporting frame 1415, a support frame mounting base 1416, a hole 1417, a top fasten knob 1418 for height adjustment, and an upper connect support frame 1424. As shown in FIG. 24A, the distance between the top supporting frame 1414 and the bottom supporting frame 1415 is at a height " 1H1" when the backrest 1412 is at the highest level. FIG. 24B shows the distance between the top supporting frame 1414 and the bottom supporting frame 1415 is at a height " lHo" when the backrest 1412 is at the lowest level.

[00169] FIG. 25A illustrates a side view of the highest and lowest height of the universal backrest assembly 1410 of the present invention is shown in a vertical state. FIG. 25A shows an axis line C-C' represents the axis of the bottom supporting frame 1415. An axis line E-E' represents the axis of the top supporting frame 1414. The angle between the axis line C-C' and axis line E-E' is "g".

[00170] FIG. 25B illustrates a side view of the highest and lowest height of the universal backrest assembly 1410 of the present invention is shown in a vertical state. FIG. 25A shows an axis line C-C represents the axis of the bottom supporting frame 1415. An axis line E-E' represents the axis of the top supporting frame 1414. The angle between the axis line C-C and axis line E-E' is "g".

[00171] FIG. 25C illustrates a side view of the highest and lowest height of the universal backrest assembly 1410 of the present invention is shown in a backward tilt state. The axis line C-C represents a vertical axis. An axis line D-D’ represents the axis of the bottom supporting frame 1415 in a backward tilt state. The angle between the axis line C- C and axis line D-D’ is "bΐ".

[00172] FIG. 25D illustrates a side view of the highest and lowest height of the universal backrest assembly 1410 of the present invention is shown in a backward tilt state. The axis line C-C represents a vertical axis. An axis line D-D' represents the axis of the bottom supporting frame 1415 in a backward tilt state. The angle between the axis line C- C and axis line D-D' is "bΐ".

[00173] FIG. 25E, a side view of the universal backrest assembly 1410 at lowest level of the present invention is shown in a forward tilt state. The axis line C-C represents a vertical axis. And the axis line E-E' represents the axis of the bottom supporting frame 1415 in a forward tilt state. The angle between the axis line C-C' and axis line D-D’ is "b2".

[00174] FIG. 25F shows a perspective view of the universal backrest assembly 1410 of the present invention in a forward tilt state.

[00175] FIG. 26A illustrates a method of operating the angle adjustment mechanism according to one or more embodiments of the invention. When the universal backrest assembly 1410 rotate from a vertical state to a backward tilt sate, the axis line C-C' will rotates to the axis line D-D' at an angle of "bΐ". When the universal backrest assembly 1410 rotates from a vertical state to a forward tilt sate, the axis line C-C will rotate to the axis line E-E' at an angle of "b2".

[00176] Referring to FIG. 26B, a perspective view of the universal backrest assembly 1410 of the present invention and a toilet is shown in a backward tilt state. The distance between the top supporting frame 1414 and the bottom supporting frame 1415 is at a height " 1H1” so the backrest 1412 is at the highest level.

[00177] Referring to FIG. 26C, a front view of the universal backrest assembly 1410 of the present invention and a toilet is shown. The distance between the top supporting frame 1414 and the bottom supporting frame 1415 is at a height“1H1” so the backrest 1412 is at the highest level.

[00178] FIG. 27A illustrates the assembly of the backrest assembly 1410 is shown. FIG. 27A shows a top view of the universal backrest assembly 1410 of the present invention. FIG. 27B shows a back perspective view of the universal backrest assembly 1410. The upper connect support frame 1424 is physically joined to top supporting frame 1414 and connects to the back rest 1412 by means of mounting bolts 1411.

[00179] FIG. 27B illustrates the assembly of the backrest assembly 1410 is shown. FIG. 27A shows a top view of the universal backrest assembly 1410 of the present invention. FIG. 27B shows a back perspective view of the universal backrest assembly 1410. The upper connect support frame 1424 is physically joined to top supporting frame 1414 and connects to the back rest 1412 by means of mounting bolts 1411.

[00180] FIG. 28 illustrates a sectional view of another example of the angle adjustment mechanism of the present invention. The bottom fasten knob 1413 is locked into a connecting wing 1413D with a knob screw 1413A to prevent a bolt 1413B and a spring roll 1413E from rotating. When the bottom fasten knob 1413 is removed by a user, it allows the bottom supporting frame 1415 (see FIG. 26A) to rotate freely through the connecting wing 1413D. Also, the spring roll 1413E may pull the bottom supporting frame 1415 back to predetermined angle if there is no any pressure from the user. The user may stick back the bottom fasten knob 1413 and the knob screw 1413A into the connecting wing 1413D as to lock in the bottom supporting frame 1415 by desired position.

Assistive Apparatus With Adjustable Seat Height

[00181] The present invention includes an assistive apparatus for providing a mechanism of adjusting seat height while using a toilet. The assistive apparatus can be placed directly over a rim of a toilet bowl, a seat of a toilet seat system or a bedside commode. Therefore, the invention includes a powered lifting mechanism to aid the individual in utilizing a toilet. The powered lifting mechanism includes a pair of lift arm assembly which are driven by a motor at both sides, which raises and lowers the assistive platform. The front and back supporting legs provide support to the assistive platform keeping the toilet from user's weight [00182] The assistive toilet seat apparatus with a powered lifting mechanism includes is designed to be placed on a toilet such that when an individual uses the toilet the seat could be lifted up or lifted down

[00183] The assistive apparatus with a lifting assembly as described in detail below is capable of lifting the assistive platform so as to position the assistive platform to be tilted between a first stationery position to a second tilted position, tiled horizontally at an angle ("a"). In one aspect, the "a" angle is adjusted to be between 0° and 80°. In another aspect, the lifting assembly further includes one or more ball screw linear actuators, and one or more nuts connected to the one or more lifting shafts. In addition, the assistive apparatus equipped with a lifting assembly with is designed to be placed on any kinds of a toilet, any shower chairs, or other devices such that when a person uses the toilet the setting apparatus could be lifted up or lifted down.

[00184] Figure 29 illustrates one embodiment of an assistive apparatus 2100 in an elevated state, which generally includes right leaflet 2122, left leaflet 2123, leaflet support base 2124, and two drive mechanisms 2128A & 2128B. The assistive apparatus 2100 is positioned in an elevated state and attached to a conventional toilet bowl 210, commonly found in residential, commercial, and institutional environments. A power unit 2130, containing internal electric and a motor is located to the lower rear area of the toilet base 220. Electric power of this device is routed from the power unit 30. The assistive apparatus 2100 tilts at an angle of a.

[00185] In one embodiment, the assistive apparatus includes a lifting assembly being connected to the assistive platform, where the lifting assembly incudes one or more lifting shafts adapted to lift the assistive platform so as to position the assistive platform to be tilted between a first stationery position to a second tilted position, tiled horizontally at an angle ("a"). In one aspect, the "a" angle is adjusted to be between 0° and 80°. In another aspect, the lifting assembly further includes one or more ball screw linear actuators, and one or more nuts connected to the one or more lifting shafts

[00186] In a further embodiment, the one or more actuators are connected to one or more drive mechanisms and adapted to be rotated counterclockwise so as to move the right leaflet and the left leaflet in a direction LI, and be rotated clockwise so as to move the right leaflet and the left leaflet in a direction L2. In another embodiment, the one or more actuators comprises one or more ball screw linear actuators.

[00187] In still another embodiment, the assistive apparatus further includes one or more front supporting legs connected to the assistive platform. In one aspect, the one or more front supporting legs are substantially vertical and physically connected to one or more floor mounting flanges to secure the assistive apparatus and prevent movement. In another aspect, the one or more front supporting legs are connected to a front bar via one or more connectors.

[00188] In yet another embodiment, the assistive apparatus further includes one or more back supporting legs, being connected to a support frame mounting base and not connected to the assistive platform, where the support frame mounting base is adapted to support the assistive platform. In one aspect, the one or more back supporting legs are substantially vertical and physically connected to one or more floor mounting flanges to secure the assistive apparatus and prevent movement.

[00189] In another embodiment, the assistive apparatus further includes a controller being adapted to control the one or more actuators to adjust the horizontal distance ("2H") between the left leaflet and the right leaflet move the right. In one aspect, the controller is clipped on one or more grab handles, where the one or more grab handles are connected to the assistive platform and adapted to provide support to a person while the person is using the assistive apparatus. In another aspect, the controller includes a charging slot for charging the controller.

[00190] Figure 30 is one example of the assistive toilet seat apparatus with adjustable seat height being positioned in a flat state and secured on a toilet bowl 210 according to one embodiment of the invention. On the rear side of the assistive toilet seat apparatus 2100, there is a back rest pad 2112 which serves as a back support. An assistive platform 2150 is supported by a supporting leg mechanism 2140 and a lifting mechanism 2170 on the both sides. The supporting leg mechanism 2140 comprises two front supporting legs 2142 and two back supporting legs 2147 (see FIG. 32). Each front supporting leg 2142 is preferably substantially vertical. The two front supporting legs 2142 are connected by a frame connector 2141 and a front bar 2148 to ensure a stable foundation.

[00191] Figure 31 is a perspective view of the lifting mechanism 2170, showing in a flat state. The lifting mechanism 2170 comprising supporting shaft 2171, supporting shaft 172A & 2172B, ball screw linear actuator 2174 driven by the power unit 2130, and two nuts 2176 & 2178. To ensure a stable foundation, the ball screw linear actuator 2174 connects to the front supporting leg 2142 via a connector 2144, and the front bar 2148 connects to the front supporting leg 2142 via a connector 143 on the both sides. Each front supporting leg 2142 is physically joined to a floor mounting flange 2145. The floor mounting flange 145 is secured with four floor mounting bolts to prevent movement.

[00192] Figure 32 illustrates a method of operating the lifting mechanism 2170 according to one or more embodiments of the invention. As shown in Figure 32, to lift up the assistive platform 2150, the power unit 2130 rotates the ball screw linear actuator 2174 to move the nuts 2176 & 2178 from the sides to the center.

The top side of the supporting shaft 2172 A & 2172B will push each other so the top supporting shaft 2171 will move higher which generate an upward force to lift up the assistive platform from a support frame mounting base 2116 so that it can tilt forward from a direction "A" to a direction "B" with a hinge 2146. The tilt angle between the direction "A" and the direction "B" is "a". The supporting shafts 2172A & 2172B are connected with the nuts 2176 & 2178 by two binding screws 2177A & 2177B. Also, the supporting shaft 2171 connects to the assistive platform 2150 with a binding screw 2173. The supporting shafts 2171 & 2172 are assembled with a binding screw 2175.

[00193] Figure 33 illustrates a method of operating the lifting mechanism 2170 according to one or more embodiments of the invention. As shown in Figure 32, to lift up the assistive platform 2150, the power unit 2130 rotates the ball screw linear actuator 2174 to move the nuts 2176 & 2178 from the sides to the center. The top side of the supporting shaft 2172A & 2172B will push each other so the top supporting shaft 2171 will move higher which generate an upward force to lift up the assistive platform from a support frame mounting base 2116 so that it can tilt forward from a direction "A" to a direction "B" with a hinge 2146. The tilt angle between the direction "A" and the direction "B" is "a". The supporting shafts 2172 A & 2172B are connected with the nuts 2176 & 2178 by two binding screws 2177A & 2177B. Also, the supporting shaft 2171 connects to the assistive platform 2150 with a binding screw 2173. The supporting shafts 2171 & 2172 are assembled with a binding screw 2175. [00194] As shown in Figure 34, the assistive platform 2150 of the invention can be kept flat on the support frame mounting base 2116 which is supported by a back supporting leg 2147. To lower the assistive platform 2150 back to flat level, the power unit 2130 rotates the ball screw linear actuator 2174 to move the nuts 2176 & 2178 from the center to the sides. The bottom side of the supporting shaft 2172A & 2172B will pull each other so the top supporting shaft 2171 will move lower which generate a downward force to lower the assistive platform

[00195] As shown in Figure 29, during the operation of the lifting mechanism by a user, the assistive platform 2150 can tilt forward in a direction "B" by a user to a desirable

height at an angle of "a". Accordingly, the user is able to adjust the position of the assistive platform 2150 for easily getting up from the assistive apparatus 2100.

[00196] Figure 34 shows a top view of a right leaflet and a left leaflet 2122 & 2123, two drive mechanisms 2128, a leaflet support base 2124 and an assistive platform 2150 according to another embodiment of the invention shown in a retracted state

[00197] Figure 35 illustrates a side view of the supporting mechanism 2140 in a flat state. As shown in

FIG. 35, the assistive platform 2150 can be supported by only the front supporting legs 2142 and the back supporting legs 2147.

[00198] Figure 36 illustrates a method of operating the assistive apparatus 2100 according to one or more embodiments of the invention. As shown in Figure 36, the right leaflet 2122 and left leaflet 2123 of the invention can be positioned to the two sides of the leaflet support base 2124 by the drive mechanisms 2128A & 2128B with a distance 2H1. As shown in Figure 37, the right leaflet 2122 and left leaflet 2123 of the invention can be positioned to the center of the leaflet support base 2124 by the drive mechanisms 2128A

& 2128B with a distance 2H2.

[00199] Figure 37 illustrates a method of operating the assistive apparatus 2100 according to one or more embodiments of the invention. As shown in Figure 36, the right leaflet 2122 and left leaflet 2123 of the invention can be positioned to the two sides of the leaflet support base 2124 by the drive mechanisms 2128A & 2128B with a distance 2H1. As shown in Figure 37, the right leaflet 2122 and left leaflet 2123 of the invention can be positioned to the center of the leaflet support base 2124 by the drive mechanisms 2128A & 2128B with a distance 2H2.

[00200] Figure 38 is a front view of the assistive platform 2150 and the supporting mechanism 2140 is shown. Figure 39 shows a front view of the assistive apparatus 2100 in a flat state. As shown in Figure 39, the vertical position of the back rest pad 2112 is adjustable by moving a top supporting frame which the back rest pad is attached on. A distance "Dl" shows the highest height that the top supporting frame can be adjusted, and a Distance "D2" shows the lowest height that the top supporting frame can be adjusted.

Assistive Apparatus With Rotatable Grab Bar

[00201] The present invention includes an assistive apparatus for elderly or disabled people to use. The assistive apparatus can be placed directly over a rim of a toilet or other device, and includes a rotatable grab bar to assist users in getting up or sitting on the toilet. Also the grab bar can be attached with a foldaway handle which allows user to pull themselves up easily. So that the assistive apparatus with rotatable grab bar allows the individual to hold the grab bars to sit on or get up from a toilet, or transfer to a toilet from a wheel chair, or keep body stable while using a toilet.

[00202] The assistive apparatus as described in detail below can accommodates elderly or disabled people to a sitting apparatus is provided; When an individual person uses a sitting apparatus coupled with the assistive apparatus described herein, the grab bar is rotatable, the foldaway handle is capable of folding, the individual person can be supported, the position can be adjusted, thereby aiding elderly or disabled people to use a sitting apparatus is provided. In addition, the assistive apparatus is equipped with a supporting leg assembly; a grab bar assembly, and a foldaway handle assembly to be placed on any kinds of siting apparatus.

[00203] Figure 40 illustrates one embodiment of an assistive apparatus 3300, which generally includes a support frame mounting base 3330, a supporting leg assembly 3340 and a grab bar assembly 3310. The supporting leg assembly 3340 comprising two front supports 3342; two upper support 3344, two rear support 3346, two base supports 3348 and a front bar 3320 provides means for adjusting length, height and width. In one example, the assistive apparatus 3300 can be placed over a toilet wherein the toilet having a toilet base 220 and a toilet bowl 210. The toilet can be any of a conventional toilet, commonly found in residential, commercial, and institutional environments.

[00204] In one embodiment, as shown in Figure 40, the support frame mounting base 3330 is connected between the supporting leg assembly 3340 and any siting apparatus to be used, where the support frame mounting base 3330 is adapted to connect supporting leg assembly 3340. In another embodiment, the supporting leg assembly 3340 includes two front supports 3342, two or more upper supports 3344, and two or more knobs 3343 connected to the support frame mounting base via one or more base supports 3348.

[00205] In yet another embodiment, the front bar 3320 connected to a knob 3323, wherein the knob 3323 is adapted to adjust the width consist with the extension of the supporting leg assembly 3340.

[00206] In still another embodiment, as shown in Figure 40, the grab bar assembly 3310 comprises two grab bars 3312, 3314 connected to the upper support 3344 of the supporting leg assembly 40 on both sides. In one aspect, the comprises two grab bars 3312 & 3314 are capable of rotating in 360 degrees at a horizontal plane.

[00207] For example, the two grab bars 3312 & 3314 could be rotated clockwise and counterclockwise so as to aid the individual to adjust the bar to a desired a position while using the siting apparatus.

[00208] In yet another embodiment, the supporting leg assembly 3340 is adapted to support the one or more grab bars 3312 & 3314. In this figure, the dimensions of the assistive apparatus 3300 is at the minimum level. The preset height from the support frame mounting base 3330 to the ground is "Ho". The preset distance between the right front support 3342 and the knob 3323 is "Wo". And the preset length between the rear support 3346 and the soft cushion 3347 is "3Lo".

[00209] Figure 41 illustrate a perspective view of the assistive apparatus 3300 of the present invention is shown in an extended state. While individual use the assistive apparatus 3300, the grab bar assembly 3310, supporting leg assembly 3340, knob 3323, knob 3341, knob 3343, and knob 3345 are adapted to adjust and extend the assistive apparatus 3300 to a desired position at length, height and width direction. In this figure, the dimensions of the assistive apparatus 3300 is at the maximum level. The height from the support frame mounting base 3330 to the ground is "3H . The distance between the right front support 3342 and the knob 3323 is "Wf. And the length between the rear support 3346 and the soft cushion 3347 is "3Li”.

[00210] In one embodiment, as shown in Figure 41, the knob 3323 and 3345 are adapted to adjust the width between a first place ("Wo") to a second place ("Wi"); the knob 3343 is adapted to adjust the length between a first place ("3Lo") to a second place ("3Li”); the knob 3342 is adapted to adjust the height between a first place ("3Ho") to a second place ("3Hi").

[00211 ] Figure 42A illustrates a sectional side view of the grab bar assembly 3310 comprising castellated collar 3311, a bar 3312, a castellated nut 3313, and a grip cushion 3316. The castellated collar 3311 is secured on the front support 3342 with a screw, and jointed with the castellated nut 3313 which is attached in the bar 3312.

[00212] In one embodiment, as shown in Figure 42A, the grab bar assembly 3310 includes castellated collar 3311, a bar 3312, and a castellated nut 3313, wherein the three elements accommodate together to provide horizontal and vertical support. For example, an individual person may use the grab bar assembly 3310 by lifting and moving the bar 3312, it could be easily adjusted between a first place and second place up to 360 degrees at a horizontal position. Thus, provide the needed support for the purpose of aiding elderly or disabled people.

[00213] Figure 42B illustrates a sectional top view of the grab bar assembly 3310 comprising castellated collar 3311, a bar 3312, a castellated nut 3313, and a grip cushion 3316. The castellated collar 3311 is secured with the castellated nut 3313 which is attached in the bar 3312.

[00214] In another embodiment, as shown in Figure 42B, the grab bar assembly 3310 includes castellated collar 3311, a bar 3312, and a castellated nut 3313, wherein the three elements accommodate together to provide horizontal and vertical support. For example, an individual person may use the grab bar assembly 3310 by lifting and moving the bar 3312, it could be easily adjusted between a first place and second place up to 360 degrees at a horizontal position. Thus, provide the needed support for the purpose of aiding elderly or disabled people.

[00215] Figure 43A illustrates a side view of the assistive apparatus 3300 comprising a rotatable grab bar 3314, wherein the front support 3342 and upper support 3344 at a preset position ( e.g at 3Lo, and 3Ho) according to one embodiment of the invention. For example, one individual person could adjust the height, the user may remove the knob 3341 so as to extend the front support 3342. Once the desired height is determined, the user may stick the knob 3341 back in the front support 3342 as a lock.

[00216] The assistive apparatus 3300 can accommodate different lengths from "3Lo" to "3Li". For example, one individual person could adjust the length, the user may remove the knob 3343 so as to extend the upper support 3344. Once the desired length is determined, the user may stick the knob 3343 back in the upper support 3344 as a lock.

[00217] Figure 43B illustrates a side view of the assistive apparatus 3300 comprising a rotatable grab bar 3314, wherein the front support 3342 and upper support 3344 at a desired position (e.g., at 3Li, and 3Hi) according to another embodiment of the invention. For example, one individual person could adjust the height, the user may remove the knob 3341 so as to extend the front support 3342. Once the desired height is determined, the user may stick the knob 3341 back in the front support 3342 as a lock.

[00218] The assistive apparatus 3300 can accommodate different lengths from "3Lo" to "3Li". For example, one individual person could adjust the length, the user may remove the knob 3343 so as to extend the upper support 3344. Once the desired length is determined, the user may stick the knob 3343 back in the upper support 3344 as a lock. [00219] Figure 43C illustrates a top view of still another example of an assistive

apparatus 3300 with rotatable grab bar assembly 3310, wherein the rear support 3346 at a preset position (e.g., at Wo) according to yet another embodiment of the invention. The assistive apparatus 3300 can accommodate different width from "Wo" to "Wi" for user's body type.

[00220] In one embodiment, as shown in Figure 43C, the distance between a knob 3345 and the upper support 3344 is "Wo" when there is no any extension on the width. The increased distance from "W'o" to "WV is equivalent to the increased distance from "Wo" to "Wi"

[00221] Figure 43D illustrates a top view of a further example of an assistive apparatus 3300 with rotatable grab bar assembly 3310, wherein the rear support 3346 at a desired position (e.g., at Wi) according to another embodiment of the invention. The assistive apparatus 3300 can accommodate different width from "Wo" to "Wf for user's body type.

[00222] In one embodiment, as shown in Figure 43D, the width of the assistive apparatus 3300 is extended at the maximum level and the distance between a knob 3345 and the upper support 3344 is "W'i". The increased distance from "W'o" to "W'i" is equivalent to the increased distance from "Wo" to "Wi".

[00223] Figure 43E illustrates a front view of another example of an assistive apparatus 3300 with rotatable grab bar assembly 3310, wherein the rear support 3346 and front support 3342 at a preset position (e.g., at Wo, and 3Ho) according to another embodiment of the invention. In one embodiment, as shown in Figure 43E, adjust the width between a first place ("Wo") to a second place ("Wf). In another embodiment, as shown in Figure 43E, adjust the height between a first place ("3Ho") to a second place ("3Hi"). For example, an individual person may adjust the width by removing the knob 3323 and knob 3345 so as to extend the front support 3342 and the front bar 3320. Once the desired width is determined, the user may stick the knob 3323 and the knob 3345 back to secure the frame. In addition, an individual person may adjust the height by removing the knob 3341 extend the front support 3342. Once the desired height is determined, the user may stick the knob 3341 back to secure the frame.

[00224] Figure 43F illustrates a front view of still another example of an assistive apparatus 3300 with rotatable grab bar assembly 3310, wherein the rear support 3346 and front support 3342 at a desired position (e.g., at Wi, and 3Hi) according to another embodiment of the invention. In one embodiment, as shown in Figure 43E, adjust the width between a first place ("Wo") to a second place ("Wf). In another embodiment, as shown in Figure 43E, adjust the height between a first place ("3Ho") to a second place ("3Hf).

[00225] For example, an individual person may adjust the width by removing the knob 3323 and knob 3345 so as to extend the front support 3342 and the front bar 3320. Once the desired width is determined, the user may stick the knob 3323 and the knob 3345 back to secure the frame. In addition, an individual person may adjust the height by removing the knob 3341 extend the front support 3342. Once the desired height is determined, the user may stick the knob 3341 back to secure the frame.

[00226] Figure 44 illustrates a perspective view of one example of an assistive apparatus 3300 with back rest 112, wherein the front support 3342 at a desired position (e.g, at 3Hi) according to one embodiment of the invention. The knob 3342 is adapted to adjust the height between a first place ("3Ho") to a second place ("3FE”)

[00227] In one embodiment, as shown in Figure 44, the back rest 112 is attached on the support frame mounting base 3330 and serves as an adjustable back support. For example, an individual person may use the back rest 112 to support a human back, wherein the back rest is designed to relieve pressure on the back by adjusting it for different positions.

[00228] Figure 45 illustrates a perspective view of one example of the assistive apparatus 3300 with back rest 3112 and back supporting legs 3147, wherein the front support 3342 and back supporting legs 3147 at a desired position (e.g., at 3Hi) according to one embodiment of the invention. The knob 3342 is adapted to adjust the height between a first place ("3Ho") to a second place ("3Hi").

[00229] In one embodiment, as shown in Figure 45, the assistive apparatus 300 may further be assembled as an assistive model comprising two back supporting legs 3147 and a back rest 3112. For example, an individual person may adjust the height of the back supporting leg 3147 via a knob 3149. The back supporting leg 3147 increases the weight capacity of the assistive apparatus 300 for elderly or disable users.

[00230] Figure 46 illustrates a perspective view of the assistive apparatus 3300 with rotatable grab bar assembly 3310 of the present invention and the back rest 3112 is shown.

[00231] In one embodiment, as shown in Figure 46, the left bar 3314 and right bar 3312 are at a position consistent with the front 3320. The left bar 3314 and right bar 3312 are capable of rotating in 360 degrees at a horizontal position. Further, the back rest 112 is attached on the support frame mounting base 3330 and serves as an adjustable back support.

[00232] For example, an individual person may operate the grab bar assembly 3310 from a first place to a second place up to 360 degrees to provide horizontal support or vertical support for elderly or disable users. In addition, an individual person may use the back rest 112 to support a human back, wherein the back rest is designed to relieve pressure on the back by adjusting it for different positions.

[00233] Figure 47 is a perspective view of one example of the assistive apparatus 3300, wherein the assistive apparatus 3300 placed over a toilet base 3220 and toilet bowl 3210 according to one embodiment of the invention.

The assistive apparatus 3300 with rotatable grab bar can be attached to a conventional toilet, commonly found in residential, commercial, and institutional environments, with the supporting mounting base 3330.

[00234] The assistive apparatus 3300 can be placed directly over a rim of a toilet bowl, a seat of a toilet seat system, a shower chair or a bedside commode. In one embodiment, as shown in Figure 47, the assistive apparatus 3300 placed over a toilet base 3220 and toilet bowl 3210 is an example of use. For example, an individual person may rotate the left bar 3314 or right bar 3312 up to 360 degree and locks into any place at a horizontal position. This allows the users to use the grab bar assembly 3310 from multiple positions, or transfer himself between a toilet and another sitting apparatus.

[00235] Figure 48 is a perspective view of one example of operating a foldaway handle assembly 3410, wherein the foldaway handle is capable of folding away and rotating according to one embodiment of the invention. The assistive apparatus 3300 may further includes a foldaway handle assembly 3410 comprising two handles 3412 & 3414.

[00236] In one embodiment, as shown in Figure 48, the foldaway handle assembly 3410 is connected to the upper support 3344 of the supporting leg assembly 3340 via the bar 3312 & 3314. This connection allows the foldaway handle assembly 3410 to rotate in 360 degrees. Two handles 3412 & 3414 replace the original grab bar and serve as grips for a user to pull himself up. [00237] Figure 49A is a sectional view of one example of the foldaway handle

assembly 3410 at a folded position according to one embodiment of the invention. The foldaway handle assembly

3410 comprising a bar connector 3411, a right handle 3412 and a left handle 3414, a folding mechanism 3415, a grip cushion 3416 and a spring button 3417.

[00238] In one embodiment, as shown in Figure 49A, the foldaway handle assembly 3410 is connected to the left bar 3314 of the grab bar assembly 3310. This connection

allows the foldaway handle assembly 3410 to rotate in 360 degrees. The handle 3414 replace the original grab bar and serve as grips for a user to pull himself up.

[00239] For example, an individual could turn the left handle 3414 to the right in 90 degrees to provide horizontal support or vertical support for elderly or disable users.

[00240] Figure 49B illustrates a sectional view of another example of operating a foldaway handle assembly 3410 at a preset position, wherein the foldaway handle 3414 is capable of folding away and rotating according to another embodiment of the invention.

[00241] In one embodiment, as shown in Figure 49B, the foldaway handle assembly 3410 is connected to the left bar 3314 of the grab bar assembly 3310. This connection

allows the foldaway handle assembly 3410 to rotate in 360 degrees. The handle 3414 replace the original grab bar and serve as grips for a user to pull himself up.

[00242] For example, an individual could turn the left handle 3414 to the right in 90 degrees to provide horizontal support or vertical support for elderly or disable users.

[00243] Figure 49C illustrates a sectional view of one example of a retracted foldaway handle assembly 3410 at a preset position (e.g., at 3L’o) according to one embodiment of the invention, wherein the extension of the foldaway handle assembly 3410 is shown.

[00244] In one embodiment, as shown in Figure 49C, the spring button 3417 is close to the top of the bar connector 3411, and the distance between the castellated collar 3311 and the handle 3412 is "3L’o" which is the minimum length of the extension. On contrast, the spring button 3417 is at the bottom of the bar connector 3411 and the distance between the castellated collar 3311 and the handle 3412 is "3L’i", which represents the maximum length of the extension. For example, an individual person may press the spring button 3417, the bar connector 3411 will be released and able to extend.

[00245] Figure 49D illustrates a sectional view of another example of an expanded foldaway handle assembly at a desired position (e.g., at 3L’i) according to one embodiment of the invention, wherein the extension of the foldaway handle assembly 3410 is shown.

[00246] In one embodiment, as shown in Figure 49D, the spring button 3417 is at the bottom of the bar connector

3411 and the distance between the castellated collar 3311 and the handle 3412 is "3LT", which represents the maximum length of the extension. On contrast, the spring button 3417 is close to the top of the bar connector 3411, and the distance between the castellated collar 3311 and the handle 3412 is "3L’o" which is the minimum length of the extension. For example, an individual person may press the spring button 3417, the bar connector 3411 will be released and able to extend. [00247] Figure 50 illustrates a perspective view of one example of a foldaway handle model of an assistive apparatus 3300 with rotatable grab bar assembly 3310, a foldaway handle assembly 3410, and a toilet (a toilet base 220 and a toilet bowl 210) according to one embodiment of the invention. In one embodiment, the assistive apparatus 3300 with foldaway handle can be attached to a conventional toilet, commonly found in residential, commercial, and institutional environments, with the supporting mounting base 3330. The assistive apparatus 3300 can be placed directly over a rim of a toilet bowl, a seat of a toilet seat system, a shower chair or a bedside commode.

[00248] In another embodiment, as shown in Figure 50, the assistive apparatus 3300 placed over a toilet base 220 and toilet bowl 210 is an example of use.

[00249] In still another embodiment, an individual person may press the spring button 3417, the bar connector 3411 will be released and able to extend. Therefore, foldaway handle assembly 3410 is capable of providing horizontal support or vertical support for elderly or disable users.

[00250] Figure 51 illustrates a perspective view of one example of a foldaway model

of an assistive apparatus 3300 with rotatable foot rest bar assembly 3420, rotatable grab bar assembly 3310, and a foldaway handle assembly 3410, according to one embodiment of the invention.

[00251] In one embodiment, the assistive apparatus 3300 with rotatable foot rest bar assembly 3420 can be attached to a conventional toilet, commonly found in residential, commercial, and institutional environments, with the supporting mounting base 3330. The assistive apparatus 3300 can be placed directly over a rim of a toilet bowl, a seat of a toilet seat system, a shower chair or a bedside commode.

[00252] In another embodiment, as shown in Figure 51, the foot rest bar assembly 420 is connected to the left bar 3314 of the grab bar assembly 3310. This connection allows the foot rest bar assembly 3420 to rotate in 360 degrees. The foot rest bar 3424 designed to provide foot support for a user.

[00253] For example, an individual could turn the left foot rest bar 3424 or right foot rest bar 3422 to a desired position up to 360 degrees to provide foot support for elderly or disable users.

[00254] While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.