CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to and the benefit of U.S. Non-provisional Application No. 16/918,449, filed July 1, 2020, and is a Continuation-In-Part of U.S. Application Serial No. 16/519,744 filed July 23, 2019, the disclosures of which are herein incorporated by reference in their entireties.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The subject invention is directed to surgical instrumentation, and more particularly, to a battery powered lighting device used with a handheld electrosurgical instrument, which includes a smoke evacuation system.

2. Description of Related Art

In medical practice, lighting devices are used to direct light at a specific area being operated on or examined. For example, lighting devices can be used in conjunction with a handheld electrosurgical device, such as a BOVIE ^® pencil, which is typically used to incise tissue during a surgical procedure.

Some instruments known in the art include an integral light source, but these devices are generally expensive and relatively bulky. Cordless and corded lighting devices for surgical tools are also known in the art, but these can also add bulk, preventing a user from manipulating the tool with precision or in confined spaces.

Other instruments known in the art include an integral smoke evacuation conduit, but these devices are generally expensive and provide usability challenges due to added bulk that impacts ergonomics.

Additionally, many lighting devices, especially corded devices and overhead lights, require constant repositioning, are assistant-dependent to hold or re -position, and can be disruptive to a surgical field. Furthermore, corded lighting devices, as well as light sources that are integrated into a tool can become hot, burning the user and/or patient, and possibly even causing a fire.

Headlights can be used as an alternative to a lighting device during a surgical procedure. However, similar to lighting devices, headlights are bulky, commonly require cables to connect to a power source, require constant readjustment, and can pose a potential safety hazard. Moreover, being worn on the head of the surgeon, they are at a distance from the surgical field, decreasing their effectiveness, and they can cause fatigue and strain if worn for an extended period of time.

It is known that when handheld lighting devices, overhead lights and/or headlamps are employed during a surgical procedure, the hands/tools of the surgeon can block the light and cast a shadow on the surgical site, which is undesirable. Those shadows require the user to reposition the lighting sources regularly, and can even require the surgeon to move their head to try to angle the headlamp towards the surgical site differently.

A particularly useful battery powered lighting device designed for attachment to a handheld electrosurgical device, and in particular, for use with a BOVIE ^® pencil, is disclosed in commonly assigned U.S. Patent No. 9,851,060, the disclosure of which is herein incorporated by reference in its entirety. This device overcomes the deficiencies of the prior art lighting devices described above.

The use of a handheld electrosurgical device, such as a BOVIE ^® pen to incise tissue, typically creates surgical smoke when energy is imparted to tissue cells during surgery. The heat from the energy vaporizes the intracellular fluid, which increases the pressure inside the cell and eventually causes the cell membrane to burst. When this happens, a plume of smoke containing mostly water vapor is released into the operating room. At the same time, the heat chars the protein and other organic matter within the cell, releasing contaminants, such as carbonized cell fragments and gaseous hydrocarbons.

These small particles and gases are potentially hazardous if inhaled. If they are not evacuated from the surgical site nearest to the location where the surgical smoke is created, they can become airborne and inhaled. This has led to the development and use of smoke evacuation systems during surgical procedures. A smoke evacuator is basically a vacuum pump with one or more filters designed to remove surgical smoke and aerosol from an operative site and filter out contaminants· In addition, they may return filtered air to the operating room.

Given the increasing need and desire for surgical evacuation systems in operating rooms, the inventors have determined that it would be advantageous to incorporate such a system directly into a battery powered lighting device used with a handheld electrosurgical instrument. The subject disclosure presents several new and useful embodiments of a battery powered lighting device for use with an electrosurgical instrument, such as a BOVIE ^® pencil, which incorporates a smoke evacuation system.

SUMMARY OF THE DISCLOSURE

The subject invention is directed to new and useful lighting devices for installation on a handheld surgical instrument, and preferably, for releasable attachment to a handheld electrosurgical instrument. More particularly, the subject invention is directed to a lighting device for attachment to a handheld electrosurgical instrument that includes an elongated housing having opposed proximal and distal end portions and defining an interior chamber containing a battery powered light assembly for illuminating a surgical site, wherein the housing has at least one smoke evacuation passage associated therewith that extends from an inlet located adjacent, near or proximate to the distal end portion of the housing to an outlet located adjacent, near or proximate to the proximal end portion of the housing for removing smoke generated at the surgical site.

In one embodiment of the lighting device, the smoke evacuation passage is located within the housing of the lighting device, separated from the interior chamber by an interior wall of the housing. In another embodiment of the lighting device, the smoke evacuation passage is located outside of the housing of the lighting device, separated from the interior chamber by an exterior wall of the housing.

A connective fitting is associated with the outlet of the smoke evacuation passage for connecting the smoke evacuation passage with a smoke evacuation tube that communicates with a source of suction. Preferably, a filter element is located within at least one of the smoke evacuation passage or located in the smoke evacuation tube. It is envisioned that the smoke evacuation passage could have any cross-sectional configuration, including, for example, a rectangular cross-sectional configuration, a square cross-sectional configuration, an oval cross-sectional configuration or a circular cross-sectional configuration. In yet another embodiment of the lighting device, the associated smoke evacuation passage extends through a nozzle assembly that is detachably connected to an exterior side wall of the housing of the lighting device. In such an embodiment, the nozzle assembly may be detachably connected to an exterior side wall of the housing by way of a snapping connection mechanism, including an engagement flange on the exterior wall of the housing and a pair of deflectable engagement tangs on the nozzle assembly, or vice versa. Alternatively, the associated nozzle assembly may be detachably connected to an exterior side wall of the housing by way of a sliding tongue and groove connection mechanism, including a groove portion on the exterior wall of the housing and a tongue portion on the nozzle assembly, or vice versa. In yet another embodiment, the nozzle assembly may be detachably connected to an exterior side wall of the housing by way of an adhesive strip.

Preferably, the associated nozzle assembly includes an inlet nozzle, a smoke evacuation tube extending proximally from the inlet nozzle and a barbed connective fitting at a proximal end of the smoke evacuation tube. The inlet nozzle includes at least one inlet orifice adapted and configured to maximize smoke evacuation coverage and performance, because the inlet nozzle can be positioned close to cautery site where the smoke is created. In this regard, it is also envisioned that the inlet nozzle could be configured to telescope or otherwise extend distally so that it may be positioned is in close proximity to source of smoke creation.

A filter element can be disclosed in at least one of the inlet nozzle, barbed connective fitting, or the smoke evacuation tube. A coupling is operatively associated with the smoke evacuation tube for securing the tube to a surgical instrument.

Preferably, the battery powered lighting assembly includes a printed circuit board that includes at least one LED lighting component, at least one battery cell, and a switching mechanism. An actuation button is associated with the housing for actuating the switching mechanism. In an embodiment of the invention, at least one rotatable fans is located within the smoke evacuation passage, and it is operatively connected to the printed circuit board of the battery powered light assembly. The fan may be configured to direct air flow from the smoke evacuation passage or to draw air flow into the smoke evacuation passage.

In an embodiment of the subject invention, the housing of the lighting device includes a clamping mechanism for selectively attaching the lighting device to the surgical instrument. The clamping mechanism include a generally U-shaped clamp body having a pair of opposed parallel clamping arms, and wherein an adjustable holding screw is associated with one clamping arm and an interior surface of the other clamping arm has a compliant material plate thereon. The clamping mechanism is pivotably connected to the housing about a pivot axis that extends perpendicular to a longitudinal axis of the elongated housing.

In another embodiment of the subject invention, the interior chamber of the housing has conical bore for receiving a distal end portion of the surgical instrument.

In this embodiment, the battery powered lighting assembly is adapted and configured to activate or otherwise turn on when the distal end portion of the surgical instrument is received within the conical bore. Conversely, the battery powered lighting assembly is adapted and configured to deactivate or otherwise turn off when the distal end portion of the surgical instrument is removed from the conical bore.

The subject invention is also directed to a kit for performing a surgical procedure that includes a packaging enclosure, a battery powered lighting device contained within the packaging enclosure configured for attachment to a handheld surgical instrument, and a smoke evacuation nozzle assembly contained within the packaging enclosure configured for attachment to the lighting device. The kit may further include a handheld surgical instrument within the packaging enclosure for performing a surgical procedure.

Preferably, the smoke evacuation nozzle assembly includes an inlet nozzle, a smoke evacuation tube extending proximally from the inlet nozzle and a barbed connective fitting at a proximal end of the smoke evacuation tube, and a clamping mechanism is associated with the tube for selectively attaching the tube to a surgical instrument.

The subject invention is also directed to a method for performing a surgical procedure including the steps of attaching a lighting device to a surgical instrument wherein the lighting device has a smoke evacuation passage associated therewith, either integrally or connectively, and connecting an outlet of the smoke evacuation passage to a source of suction, such as, for example, a smoke evacuator or suction device. The method may further include the steps of using the surgical instrument to perform electrocautery, and activating the source of suction to perform smoke evacuation through an inlet of the smoke evacuation passage.

Preferably, the step of attaching the lighting device to the surgical instrument includes automatically activating a light source of the lighting device, and the method further includes the step of removing the lighting device from the surgical instrument and thereby automatically deactivating the light source. Preferably, the step of connecting an outlet of the smoke evacuation passage to a source of suction includes attaching a smoke evacuation tube to a first side of the lighting device, and the method further includes the steps of detaching the smoke evacuation tube from the first side of the lighting device and reattaching the smoke evacuation tube to a second side of the lighting device. The subject invention is also directed to a lighting device for attachment to a handheld electrosurgical instrument that includes an elongated housing having opposed proximal and distal end portions and defining an interior chamber containing a battery powered lighting assembly for illuminating a surgical site, wherein the housing has a smoke evacuation tube associated therewith for removing smoke generated at the surgical site, and the smoke evacuation tube is adapted and configured to extend and retract relative to the distal end portion of the housing to accommodate end effectors of differing lengths associated with the handheld electrosurgical instrument, such as, for example, cautery blades, loops or needles.

The smoke evacuation tube includes a proximal body portion for communicating with a source of suction and a distal body portion having a distal suction inlet for receiving smoke generated at the surgical site and a proximal connective barb for providing a sealed connection with a distal end of the proximal body portion, and more particularly for connecting to tubing associated with a source of suction and to provide a good seal.

In one embodiment of the subject invention, the distal body portion of the smoke evacuation tube includes an elongated track that is adapted and configured to slidingly cooperate with a rail on an exterior wall of the housing. Preferably, the housing has rails on opposed side walls thereof for cooperating with the elongated track of the distal body portion of the smoke evacuation tube. Alternatively, the housing has elongated tracks on opposed side walls thereof for cooperating with a rail of the distal body portion of the smoke evacuation tube.

Alternatively, the distal body portion of the smoke evacuation tube is adapted and configured to be selectively attached to the housing at a location along the length thereof by an adhesive patch, band, or strap. Alternatively, a hook-and-loop, cable tie, string, or other attachment mechanism could be used. In another embodiment of the subject invention, the distal body portion of the smoke evacuation tube includes an elongated ratchet rack that is adapted and configured to cooperate with a deflectable pawl associated with an exterior wall of the housing. Preferably, the housing has deflectable pawls on opposed side walls thereof for cooperating with the elongated ratchet rack of the distal body portion of the smoke evacuation tube.

In yet another embodiment of the subject invention, the distal body portion of the smoke evacuation tube includes an elongated gear rack that is adapted and configured to cooperate with at least one pinion gear associated with an exterior wall of the housing. Preferably, the housing has pinion gears on opposed side walls thereof for cooperating with the elongated gear rack of the distal body portion of the smoke evacuation tube. Alternatively, at least one pinion gear is associated with the distal body portion of the smoke evacuation tube that is adapted and configured to cooperate with an elongated gear rack on the housing.

In another embodiment of the subject invention, the distal body portion of the smoke evacuation tube includes a mounting flange for engaging a rail on an exterior wall of the housing, and the distal body portion includes a telescoping inner tube that is extendable and retractable relative to the distal body portion through axial rotation by way of a helical thread to provide the distal suction inlet. Preferably, the housing has rails on opposed side walls thereof for engaging the mounting flange of the distal body portion of the smoke evacuation tube.

In still another embodiment of the subject invention, the distal body portion of the smoke evacuation tube includes a mounting flange for engaging a rail on an exterior wall of the housing, and the distal body portion includes a plurality of graduated telescoping inner tube members that are relatively extendable and retractable with respect to the distal body portion. Preferably, the housing has rails on opposed side walls thereof for engaging the mounting flange of the distal body portion of the smoke evacuation tube.

The subject invention is also directed to a lighting device for attachment to a handheld electrosurgical instrument that includes an elongated housing having opposed proximal and distal end portions and defining an interior chamber containing a battery powered lighting assembly for illuminating a surgical site, the interior chamber defining a conical bore extending from the proximal end portion of the housing for receiving a distal end portion of the electrosurgical instrument, the housing having a smoke evacuation tube associated therewith for removing smoke generated at the surgical site. Preferably, the smoke evacuation tube is configured to extend and retract relative to the distal end portion of the housing, and the lighting assembly is activated when the distal end portion of the electrosurgical instrument is received in the conical bore and deactivated when the distal end portion of the electrosurgical instrument is removed from the conical bore. It is envisioned and well within the scope of the subject disclosure that the smoke evacuation tube assembly could include at least one filter element for filtering particles and debris drawn into the smoke evacuation tube from the surgical site.

The subject invention is also directed to a method that includes the steps of attaching a smoke evacuation tube to a handheld electrosurgical instrument for removing smoke generated at a surgical site, and then adjusting the smoke evacuation tube relative to a distal end of the electrosurgical instrument to accommodate end effectors of differing length installed in the electrosurgical instrument. The method further includes the step of attaching a lighting device to a distal end portion of the electrosurgical instrument for illuminating the surgical site, wherein the step of attaching the smoke evacuation tube involves attaching the smoke evacuation tube to the lighting device. The step of adjusting the smoke evacuation tube involves extending the smoke evacuation tube distally with respect to the distal end of the lighting device, and retracting the smoke evacuation tube proximally with respect to the distal end of the lighting device.

These and other features of the lighting devices of the subject invention will become more readily apparent to those having ordinary skill in the art to which the subject invention appertains from the detailed description of the preferred embodiments taken in conjunction with the following brief description of the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

So that those skilled in the art will readily understand how to make and use the lighting device of the subject invention without undue experimentation, preferred embodiments thereof will be described in detail herein below with reference to the figures wherein:

Fig. 1 is a perspective view of a lighting device having an internal smoke evacuation passage separated from a surgical instrument to which it may be attached;

Fig. 2 is a perspective view of the lighting device with internal smoke evacuation passage attached to the surgical instrument shown in Fig. 1; Fig. 3 is a perspective view of the lighting device with internal smoke evacuation passage attached to a surgical instrument, with smoke evacuation tubing connected thereto;

Fig. 4 is a front elevational view of the lighting device with internal smoke evacuation passage attached to a surgical instrument; Fig. 5 is a rear elevational view of the lighting device with internal smoke evacuation passage attached to a surgical instrument;

Fig. 6 is a frontal perspective view of the lighting device shown in Fig. 1 ;

Fig. 7 is a front elevational view of the lighting device shown in Fig. 6;

Fig. 8 is a side elevational view of the lighting device shown in Fig. 6; Fig. 9 is a rear elevational view of the lighting device shown in Fig. 6;

Fig. 10 is a posterior perspective view of the lighting device shown in Fig. 6;

Fig. 11 is an exploded perspective view of the lighting device shown in Fig. 6, with parts separated for ease of illustration; Fig. 12 is a cross-sectional view of the lighting device with internal smoke evacuation passage taken along line A- A of Fig. 7;

Fig. 13 is a perspective view of a lighting device with an internal smoke evacuation passage that includes an internal fan, which is separated from a surgical instrument to which it may be attached;

Fig. 14 is a perspective view of the lighting device of Fig. 13 attached to the surgical instrument;

Fig. 15 is a perspective view of the lighting device and surgical instrument of Fig. 14, with smoke evacuation tubing connected thereto; Fig. 16 is a front elevational view of the lighting device and surgical instrument of Fig. 15;

Fig. 17 is a rear elevational view of the lighting device and surgical instrument of Fig. 15;

Fig. 18 is a frontal perspective view of the lighting device shown in Fig. 13; Fig. 19 is a front elevational view of the lighting device shown in Fig. 18;

Fig. 20 is a side elevational view of the lighting device shown in Fig. 18;

Fig. 21 is a rear elevational view of the lighting device shown in Fig. 18;

Fig. 22 is a posterior perspective view of the lighting device shown in Fig. 18;

Fig. 23 is a perspective view of the printed circuit board, LEDs, switch and fan subassembly housed within the lighting device of Fig. 18;

Fig. 24 is an exploded perspective view of the lighting device of Fig. 18, with parts separated for ease of illustration;

Fig. 25 is a cross-sectional view of the lighting device taken along line B-B of

Fig. 19; Fig. 26 is a perspective view of a surgical lighting device with an attachable smoke evacuation subassembly separated from a surgical instrument;

Fig. 27 is a perspective view of the surgical lighting device shown in Fig. 26 with the smoke evacuation subassembly attached thereto engaged on the distal end portion of the surgical instrument;

Fig. 28 is a front elevational view of the assembly shown in Fig. 27 illustrating a left side attachment;

Fig. 29 is a front elevational view of the assembly shown in Fig. 27 illustrating a right side attachment; Fig. 30 is a right side elevational view of the assembly shown in Fig. 27;

Fig. 31 is a top plan view of the assembly shown in Fig. 27;

Fig. 32 is a partial section view taken along line C-C of Fig. 31;

Fig. 33 is an exploded perspective view of the lighting device shown in Fig. 26;

Fig. 34 is a top plan view of the lighting device shown in Fig. 26; Fig. 35 is a cross-sectional view taken along line D-D of Fig. 34;

Fig. 36 is a perspective view of the subassembly with printed circuit board, battery, switch and LED housed in the lighting device shown in Fig. 26;

Fig. 37 is a front end view of the subassembly shown in Fig. 36;

Fig. 38 is a side elevational view of lighting device shown in Fig. 26; Fig. 39 is a partial cross-sectional view taken along line E-E of Fig. 38, illustrating the sliding mechanism for detachably connecting the smoke evacuation subassembly to the lighting device;

Fig. 40 is a front end view of the lighting device shown in Fig. 36;

Fig. 41 is a perspective view of the smoke evacuation nozzle assembly shown in Fig. 26; Fig. 42 is a front end view of the smoke evacuation nozzle assembly shown in Fig. 41;

Fig. 43 is a side elevational view of the smoke evacuation nozzle assembly shown in Fig. 41; Fig. 44 is an enlarged localized view of the connective tongue shown in Fig. 42;

Fig. 45 is a bottom plan view of the smoke evacuation nozzle assembly shown in Fig. 41;

Fig. 46 is a perspective view of another surgical lighting device with a detachable attachable smoke evacuation subassembly separated from a surgical instrument;

Fig. 47 is a perspective view of the surgical lighting device shown in Fig. 46 with the smoke evacuation subassembly attached thereto engaged on the distal end portion of the surgical instrument;

Fig. 48 is a front elevational view of the assembly shown in Fig. 47 illustrating a left side attachment;

Fig. 49 is a front elevational view of the assembly shown in Fig. 47 illustrating a right side attachment;

Fig. 50 is a top plan view of the assembly shown in Fig. 47;

Fig. 51 is a right side elevational view of the assembly shown in Fig. 47; Fig. 52 is a partial section view taken along line G-G of Fig. 51 ;

Fig. 53 is a right side elevational view of lighting device shown in Fig. 46;

Fig. 54 is a top plan view of the lighting device shown in Fig. 46;

Fig. 55 is a front end view of the subassembly shown in Fig. 46;

Fig. 56 is a partial cross-sectional view taken along line H-H of Fig. 53; Fig. 57 is a perspective view of the smoke evacuation nozzle assembly shown in Fig. 46;

Fig. 58 is a front end view of the smoke evacuation nozzle assembly shown in Fig. 57; Fig. 59 is a rear end view of the smoke evacuation nozzle assembly shown in

Fig. 57;

Fig. 60 is an enlarged localized view of the connective arms shown in Fig. 59;

Fig. 61 is a perspective view similar to that of Fig. 46, wherein the smoke evacuation tube extending from the nozzle assembly includes a clip for engaging a proximal end portion of the surgical instrument;

Fig. 62 is a perspective view as in Fig. 61, with the clip on the smoke evacuation tube engaged to the proximal end portion of the surgical instrument;

Fig. 63 is a top plan view of the assembly shown in Fig. 62;

Fig. 64 is a right side elevational view of the assembly shown in Fig. 62; Fig. 65 is a rear end view of the assembly shown in Fig. 62;

Fig. 66 is an exploded side elevational view of the smoke evacuation passage shown in Fig. 62, which includes the nozzle assembly, smoke evacuation tube, engagement clip and barbed connector;

Fig. 67 is an assembled side elevational view of the smoke evacuation passage shown in Fig. 62;

Fig. 68 is a cross-sectional view of barbed connector taken along line K-K of Fig. 67 illustrating a possible location for a filter element;

Fig. 69 is a rear end view of the smoke evacuation passage shown in Fig. 62;

Fig. 70 is a front end view of the smoke evacuation passage shown in Fig. 62; Fig. 71 is a perspective view similar to that of Fig. 46, wherein the nozzle assembly includes an adhesive strip for securing the smoke evacuation passage to the lighting device, which is shown separated from a surgical instrument;

Fig. 72 is a perspective as in Fig, 71, with the lighting device positioned on the distal end portion of the surgical instrument and with the nozzle assembly of the smoke evacuation passage attached to the lighting device with the adhesive strip;

Fig. 73 is a front end view of the assembly shown in Fig. 72 with the adhesive strip in an unsecured condition;

Fig. 74 is a front end view of the assembly shown in Fig. 72 with the adhesive strip in a secured condition;

Fig. 75 is a top plan view of the assembly shown in Fig. 72 with the adhesive strip in a secured condition;

Fig. 76 is a right side elevational view of the assembly shown in Fig. 72 with the adhesive strip in a secured condition;

Fig. 77 is a bottom plan view of the assembly shown in Fig. 72 with the adhesive strip in a secured condition;

Fig. 78 is a perspective view of a lighting device with an external smoke evacuation passage, which is separated from a surgical instrument to which it may be attached;

Fig. 79 is a perspective view of the lighting device with an external smoke evacuation passage attached to the distal end portion of the surgical instrument shown in Fig. 78;

Fig. 80 is a top plan view of the assembly shown in Fig. 79;

Fig. 81 is a right side elevational view of the assembly shown in Fig. 79; Fig. 82 is a front end view of the assembly shown in Fig. 79;

Fig. 83 is a perspective view of the lighting device shown in Fig. 79, with the smoke evacuation tubing disconnected from the external smoke evacuation passage;

Fig. 84 is a perspective view of the lighting device shown in Fig. 79, with the smoke evacuation tubing connected to the external smoke evacuation passage;

Fig. 85 is a front end view of the lighting device shown in Fig. 84;

Fig. 86 is a cross-sectional view taken along line L-L of Fig. 85;

Fig. 87 is a front end view of a tube-shaped smoke evacuation inlet nozzle;

Fig. 88 is a side elevational view of inlet nozzle shown in Fig. 87; Fig. 89 is a cross-sectional view taken along line M-M of Fig. 87;

Fig. 90 is a perspective view of a multi-orifice smoke evacuation inlet nozzle configured to distribute suction across a distance to better pull surgical smoke covering a wider area in the surgical field;

Fig. 91 is an exploded perspective view of the inlet nozzle shown in Fig. 90; Fig. 92 is a front end view of the inlet nozzle shown in Fig. 90;

Fig. 93 is a side end view of the inlet nozzle shown in Fig. 90;

Fig. 94 is an exploded perspective view of a kit having a packaging enclosure configured to retain the lighting device and smoke evacuation assembly shown in Fig. 61; Fig. 95 is a perspective view of the kit shown in Fig. 94 with the lighting device and smoke evacuation assembly packaged within the enclosure;

Fig. 96 is a top perspective view of the packaging enclosure shown in Fig. 94;

Fig. 97 is a bottom perspective view of the packaging enclosure shown in Fig.

94; Fig. 98 is an exploded perspective view of a kit having a packaging enclosure configured to retain the lighting device, smoke evacuation assembly and surgical instrument shown in Fig. 61, wherein the surgical instrument has a connective wire (those skilled in the art will readily appreciate that the wire was excluded in previous drawings for ease of illustration);

Fig. 99 is a perspective view of the kit shown in Fig. 98 with the lighting device, smoke evacuation assembly and surgical instrument packaged within the enclosure;

Fig. 100 is perspective view of another lighting device separated from a surgical instrument to which it may be attached, which includes multiple external smoke evacuation passages;

Fig. 101 is a perspective view of as in Fig. 100 with the lighting device attached to the distal end portion of the surgical instrument;

Fig. 102 is a perspective view of the assembly shown in Fig. 101, with a smoke evacuation tube connected to the smoke evacuation passage on the right side of the lighting device;

Fig. 103 is a perspective view of the assembly shown in Fig. 101, with a smoke evacuation tube connected to the smoke evacuation passage on the left side of the lighting device;

Fig. 104 is a top plan view of the assembly shown in Fig. 102;

Fig. 105 is a front end view of the lighting device shown in Fig. 100;

Fig. 106 is a side elevational view of the lighting device shown in Fig. 100;

Fig. 107 is a cross-sectional view taken along line N-N of Fig. 106;

Fig. 108 is a perspective view of a lighting device attached to the distal end portion of a surgical instrument, wherein the lighting device has multiple distinct attachment locations for attaching a smoke evacuation passage thereto, and wherein the inlet nozzle of a smoke evacuation passage is attached to a bottom one of those attachment locations;

Fig. 109 is a side elevational view of the assembly shown in Fig. 108; Fig. 110 is a front end view of the assembly shown in Fig. 108;

Fig. Ill is perspective view of the assembly shown in Fig. 108 with the inlet nozzles of two separated two smoke evacuation passages are attached to the lighting device at two different locations;

Fig. 112 is a side elevational view of the assembly shown in Fig. Ill;

Fig. 113 is a front end view of the assembly shown in Fig. Ill;

Fig. 114 is a perspective view of a surgical lighting device attached to a surgical instrument and shown with a smoke evacuation tube separated from the lighting device, wherein the smoke evacuation tube is configured to slide back and forth relative to the lighting device along a rail;

Figs. 115 and 116 are perspective views showing the sliding smoke evacuation tube of Fig. 114 attached to the lighting device on opposite sides of the housing;

Figs. 117 through 119 are perspective views showing the surgical instrument with different types and lengths of electrodes and the sliding smoke evacuation tube positioned at different locations relative to the housing of the lighting device to complement the different electrodes;

Fig. 120 is a front elevational view of the surgical instrument, lighting device and sliding smoke evacuation tube;

Fig. 121 is a partial top plan view of the surgical instrument, lighting device and sliding smoke evacuation tube;

Fig. 122 is a cross-sectional view taken along line N-N of Fig. 121;

Fig. 123 is a perspective view of the lighting device shown in Fig. 114;

Figs. 124 - 127 are top, left side, front and right side views of the lighting device shown in Fig. 123;

Fig. 128 is an enlarged localized view of area P taken from Fig. 126;

Fig. 129 is a perspective view of the distal portion of the sliding smoke evacuation tube shown in Fig 114, which includes a suction inlet;

Fig. 130 is a front elevational view of the suction inlet of the smoke evacuation tube;

Fig. 131 is a cross-sectional view taken along line R-R of Fig. 130; Fig. 132 is a perspective view of another smoke evacuation tube of the subject invention separated from the lighting device;

Fig. 133 through 135 are perspective view showing the smoke evacuation tube attached to the housing of the lighting device with an adhesive strap; Figs. 136 through 138 are perspective views showing the surgical instrument with different types and lengths of electrodes and the smoke evacuation tube strapped to the lighting device and positioned at different locations relative to the housing of the lighting device to complement the different electrodes;

Fig. 139 is a partial top plan view showing the smoke evacuation tube strapped to the lighting device;

Fig. 140 is a partial bottom plan view showing the smoke evacuation tube strapped to the lighting device;

Fig. 141 is a front elevational view of the surgical instrument, lighting device and strapped smoke evacuation tube; Fig. 142 is a perspective view of the distal portion of the strapped smoke evacuation tube shown in Fig. 132, which includes a suction inlet;

Fig. 143 is a front elevational view of the suction inlet of the smoke evacuation tube shown in Fig. 142;

Fig. 144 is a cross-sectional view taken along line S-S of Fig. 143; Fig. 145 is a perspective view of a surgical lighting device attached to a surgical instrument and shown with a smoke evacuation tube separated from the lighting device, wherein the smoke evacuation tube is configured to slide incrementally back and forth relative to the lighting device along a ratchet rack that interacts with a pawl associated with the housing of the lighting device; Figs. 146 and 147 are perspective views showing the smoke evacuation tube of Fig. 145 attached to the lighting device on opposite sides of the housing;

Figs. 148 through 150 are perspective views showing the surgical instrument with different types and lengths of electrodes and the smoke evacuation tube incrementally positioned at different locations relative to the housing of the lighting device to complement the different electrodes;

Fig. 151 is a partial top plan view showing the smoke evacuation tube attached to the lighting device with the locking pawl in engaged in the toothed rack;

Fig. 152 is a partial bottom plan view showing the smoke evacuation tube attached to the lighting device;

Fig. 153 is a front elevational view of the surgical instrument, lighting device and smoke evacuation tube as shown in Fig. 151;

Fig. 154 is an enlarged localized view of area U taken from Fig. 152;

Fig. 155 is a cross-sectional view taken along line T-T of Fig. 151; Figs. 156 through 158 are front, bottom and side views of lighting assembly shown in Fig. 145;

Fig. 159 is an enlarged localized view of area V taken from Fig. 156;

Fig. 160 is an enlarged localized view of area W taken from Fig. 157;

Fig. 161 is a perspective view of the distal portion of the smoke evacuation tube shown in Fig. 145;

Figs. 162 and 163 are front and side views of the suction inlet of the smoke evacuation tube shown in Fig. 161;

Fig. 164 is an enlarged localized view of area Y taken from Fig. 162;

Fig. 165 is a cross-sectional view taken along line X-X of Fig. 162; Fig. 166 is a perspective view of a surgical lighting device attached to a surgical instrument and shown with a smoke evacuation tube separated from the lighting device, wherein the smoke evacuation tube is configured to translate incrementally back and forth relative to the lighting device along a gear rack that interacts with a pinion gear associated with the housing of the lighting device;

Figs. 167 and 168 are perspective views showing the smoke evacuation tube of Fig. 166 attached to the lighting device on opposite sides of the housing;

Figs. 169 through 171 are perspective views showing the surgical instrument with different types and lengths of electrodes and the smoke evacuation tube incrementally positioned at different locations relative to the housing of the lighting device to complement the different electrodes;

Fig. 172 is a front elevational view of the view of the surgical instrument, lighting device and smoke evacuation tube as shown in Fig. 166;

Fig. 173 is an enlarged localized view of area Z taken from Fig. 172;

Fig. 174 is a partial side elevational view showing the smoke evacuation tube attached to the lighting device with the gear rack and pinion cooperatively engaged;

Fig. 175 is a partial top plan view showing the smoke evacuation tube attached to the lighting device with the gear rack and pinion cooperatively engaged;

Fig. 176 is a cross-sectional view taken along line AA-AA of Fig. 175;

Fig. 177 is a perspective view of the distal portion of the smoke evacuation tube shown in Fig. 166;

Figs. 178 and 179 are front and side views of the suction inlet of the smoke evacuation tube shown in Fig. 177;

Fig. 180 is a bottom plan view of the smoke evacuation tube of Fig. 177;

Fig. 181 is a cross-sectional view taken along line AB-AB of Fig. 178; Fig. 182 is a perspective view of a surgical lighting device attached to a surgical instrument and shown with a smoke evacuation tube separated from the lighting device, wherein the smoke evacuation tube includes a telescoping distal portion that moves relative to the tube by way of a screw thread;

Figs. 183 and 184 are perspective views showing the smoke evacuation tube of Fig. 182 attached to the lighting device on opposite sides of the housing;

Figs. 185 through 187 are perspective views showing the surgical instrument with different types and lengths of electrodes and the telescoping smoke evacuation tube positioned at different locations relative to the housing of the lighting device to complement the different electrodes;

Fig. 188 is a front elevational view of the surgical instrument, lighting device and telescoping smoke evacuation tube as shown in Fig. 182;

Fig. 189 is a partial side elevational view showing the telescoping smoke evacuation tube attached to the lighting device;

Fig. 190 is a partial top plan view showing the telescoping smoke evacuation tube attached to the lighting device;

Figs. 191 and 192 are front and side elevational views of the lighting device shown in Fig. 182;

Fig. 193 is an exploded perspective view of the view of the telescoping smoke evacuation tube shown in Fig. 182;

Fig. 194 is an assembled perspective view of the view of the telescoping smoke evacuation tube shown in Fig. 182;

Figs. 195 and 196 are front and side elevational views of the telescoping smoke evacuation tube shown in Fig. 182;

Fig. 197 is a cross-sectional view taken along line AC-AC of Fig. 196; Fig. 198 is an enlarged localized view of area AD taken from Fig. 197;

Fig. 199 is a perspective view of the telescoping portion of the smoke evacuation tube shown in Fig. 193;

Fig. 200 is a front elevational view of suction inlet of the tube shown in Fig.

199;

Fig. 201 is a perspective view of the distal body portion of the telescoping smoke evacuation tube shown in Fig. 193;

Fig. 202 is a front elevational view of the distal body portion of the telescoping smoke evacuation tube shown in Fig. 201;

Fig. 203 is a cross-sectional view taken along line AE-AE of Fig. 202;

Fig. 204 is a perspective view of a surgical lighting device attached to a surgical instrument and shown with a smoke evacuation tube separated from the lighting device, wherein the smoke evacuation tube includes a plurality of telescoping sections that are extendable and retractable;

Figs. 205 and 206 are perspective views showing the telescoping smoke evacuation tube of Fig. 204 attached to the lighting device on opposite sides of the housing;

Figs. 207 through 209 are perspective views showing the surgical instrument with different types and lengths of electrodes and the telescoping smoke evacuation tube extended to different positions relative to the housing of the lighting device to complement the different electrodes;

Fig. 210 is a front elevational view of the surgical instrument, lighting device and telescoping smoke evacuation tube as shown in Fig. 204;

Fig. 211 is a partial top plan view showing the telescoping smoke evacuation tube attached to the lighting device; Fig. 212 is a cross-sectional view taken along line AF-AF of Fig. 211;

Figs. 213 and Fig. 214 are front and side elevational views of the lighting device shown in Fig. 204;

Fig. 215 is an exploded perspective view of the telescoping smoke evacuation tube shown in Fig. 204;

Fig. 216 is a perspective view of the telescoping smoke evacuation tube shown in Fig. 204;

Fig. 217 is a front plan view of the telescoping smoke evacuation tube shown in Fig. 216; Fig. 218 is a cross-sectional view taken along line AG- AG of Fig. 217;

Fig. 219 is an enlarged localized view of area AE taken from Fig. 218;

Fig. 220 is a side elevational view of the telescoping smoke evacuation tube shown in Fig. 216 in a fully extended condition;

Fig. 221 is a cross-sectional view taken along line AJ-AJ of Fig. 220; Fig. 222 is an enlarged localized view of area AK from Fig. 221 ;

Fig. 223 is an enlarged localized view of area AL from Fig. 221; and

Fig. 224 is an enlarged localized view of area AM from Fig. 221.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to the drawings wherein like reference numerals identify similar structural elements of the various embodiments of the subject invention, there is illustrated in Fig. 1 a lighting device 20 having an internal smoke evacuation passage 8. The lighting device 20 is adapted and configured to be attached to a surgical instrument 10, preferably on the distal end portion thereof, as shown in Fig. 2. As shown in Fig. 3, an elongated smoke evacuation tube 30 connects the proximal end of the internal smoke evacuation passage 8 of lighting device 20 to a source of suction such as smoke evacuator or pump (not shown).

Referring now to Figs. 4 through 12, the lighting device 20 has a generally rectangular housing with opposed proximal and distal ends defined by left and right housing components 2 and 2’. As best seen in Fig. 12, the housing of lighting device 20 defines an interior chamber that contains a battery powered light assembly for illuminating a surgical site. The light assembly includes a printed circuit board 28 with at least one or two integrated or embedded LED light components 32, a mechanical switching mechanism 26, and a battery cell 24. A concave lens 6 is located at the distal end of the housing for directing the light sources 32.

A push button actuator 4 is associated with the housing section 2 for manually actuating the switching mechanism 26 that controls the battery powered light assembly. The housing defined by left and right housing components 2 and 2’ includes the internal smoke evacuation passage 8, which is defined by left and right passage portions 8 and 8’ as best seen in Fig 11. Smoke evacuation passage 8 is separated from the interior chamber of the housing by an interior wall 5. The smoke evacuation passage 8 extends from an inlet located adjacent the distal end portion of the housing to an outlet or connective fitting 18, 18’ located adjacent the proximal end portion of the housing. Connective fitting 18 enables the elongated smoke evacuation tube 30 to connect the smoke evacuation passage 8 with a source of suction, such as a smoke evacuator (not shown).

Referring to Figs. 6 through 10, the lighting device 20 includes a clamping mechanism 12 for selectively attaching the lighting device to the surgical instrument, as seen in Fig. 2. The clamping mechanism 12 includes a generally U-shaped clamp body having a pair of opposed parallel clamping arms 12’ and 12”. An adjustable holding screw 16 is associated with clamping arm 12’ and an interior surface of clamping arm 12” has a compliant material plate 14 thereon for closely engaging the geometry of the surgical instrument 10. The clamping mechanism 12 is pivotably connected to the housing 2, 2’ about a pivot axis defined by pin 22 that extends perpendicular to a longitudinal axis of the elongated housing 2 for adjusting the light angle of lighting device 20 relative to the distal end of the surgical instrument 10 so as to intersect the distal tip of the instrument. Those skilled in the art will readily appreciate that other mechanical clamping mechanisms may be employed to attach the lighting device to the surgical instrument, such as, for example, spring loaded clamps or the like. Alternatively, other types of attachment means could be employed, such as, for example, hook and loop type fasteners, adhesive tape or the like.

It is envisioned that a filter element could be located within the smoke evacuation passage 8 or within the smoke evacuation tube 30 to filter debris and/or contaminants from the air passing therethrough from the surgical site. It is also envisioned that the internal smoke evacuation passage 8 could have either a rectangular cross-sectional configuration as shown in Fig. 4, or the internal smoke evacuation passage could have a square cross-sectional configuration, an oval cross-sectional configuration, a circular cross-sectional configuration or any other shaped cross- sectional configuration that may be known and/or readily manufactured.

Referring now to Figs. 13 and 14, there is illustrated another embodiment of a lighting device designated generally by reference numeral 40, which has an external smoke evacuation passage 15. The external smoke evacuation passage 15 is located outside of the main housing 52, 52’ of the lighting device 40, separated from the interior chamber by an exterior wall of the housing. As shown in Fig. 15, an elongated smoke evacuation tube 50 connects the fitting 56 at the proximal end of the external smoke evacuation passage 15 of lighting device 40 to a source of suction such as pump or smoke evacuator (not shown).

Referring to Figs. 18 through 25, lighting device 40 includes an adjustable clamping mechanism 12 that is substantially identical to the clamping mechanism 12 of lighting device 20, to facilitate the selective attachment of the lighting device 40 to the distal end portion of the surgical instrument 10. Lighting device 40 also includes a battery powered lighting assembly having a printed circuit board 58 with embedded LED light sources 32, a battery cell 24 and a switch 26 controlled by an actuation button 4. A lens 6 is positioned in a holding slots at the distal end of the housing 52,

52’ adjacent the LED light sources 32.

Lighting device 40 also includes an internal rotatable fan 54 located near the distal inlet of the external smoke evacuation passage 15. The fan 54 may be configured to direct air flow from the smoke evacuation passage 15 or to draw air flow into the smoke evacuation passage 15. The fan 54 is electrically connected to the printed circuit board 58 and powered by the battery 24 of the lighting assembly contained within the two part rectangular housing 52, 52’ of lighting device 40. Those skilled in the art will readily appreciate that a plurality of fans or micro fans can be positioned within the external smoke evacuation passage 15 of lighting device 40. It should also be appreciated that one or more fans could be similarly located in the internal smoke evacuation passage 8 of the lighting device 20, described above.

As best seen in Fig. 25, a filter element 62 is positioned near the proximal end portion of the external smoke evacuation passage 15 of lighting device 40. The filter element 62 may contain carbon or activated charcoal and may be a single or multi-layer composite and it can include mesh, paper or other filter layers, which can be hydrophobic.

Referring now to Figs. 26 through 45, there is illustrated another surgical lighting device designated by reference numeral 510 for use with a handheld electrosurgical instrument 10, which cooperates with a detachable smoke evacuation assembly 520. As explained in more detail below, the lighting device 510 includes sliding engagement structures 512, 512’ to facilitate the attachment of the smoke evacuation assembly 520 to the right side wall of the lighting device 510 as shown in Figs. 27 and 28, or the left side wall of the lighting device 510 as shown in Fig. 29.

The smoke evacuation assembly 520 includes an inlet nozzle 506 defining a smoke evacuation passage located adjacent the distal end of the lighting device 510. An elongate smoke evacuation tube 508 extends from the proximal outlet 516 of the inlet nozzle 506 for communicating with a smoke evacuator or pump. As best seen in Fig. 32, a sliding connector 514 extends from a bottom surface of the inlet nozzle 506 for engaging with either one of the interfacing connectors 512 and 512’ located on the right and left side walls of the lighting device 510 (see also Fig. 40). As shown for example in Figs. 38 through 45, the sliding connector 514 includes a slotted tongue 522 for interfacing with a groove 518 formed in the sliding connectors 512, 512’.

Referring to Figs. 33 through 37, the lighting device 510 includes a generally conical housing 504 having a substantially planar upper surface 505 to enable an unobstructed line of sight for the surgeon utilizing the surgical instrument 10. The housing 504 has an interior cavity that supports a lighting assembly, which includes a printed circuit board 546 having a plurality of circumferentially spaced apart embedded LED light sources 548, battery cells 544 and a switching mechanism 562. A lens 540 is positioned at the distal end of the housing 504 adjacent or near to the LED light sources 548. An engagement collar 552 with a cooperating spring 554 is operatively associated with the housing 504 of lighting device 510 for engaging the distal end portion of the surgical instrument 10 when it is received within the interior cavity 556 of the lighting device 510.

In use, when the distal end portion of the electrosurgical instrument 10 is inserted into the conical alignment sleeve 556 within interior cavity of the lighting device 510, the distal end portion of the instrument 10 will contact a flexible cantilevered foot that flexes downward to contact the switching mechanism 562, causing the LED light sources to illuminate. At such a time, the distal end portion of the instrument will be mechanically retained by the spring biased engagement collar 552. Thereupon, a surgeon using the instrument 10 will be able to incise tissue, while illuminating the surgical site and removing smoke therefrom with the lighting device 510 and its smoke evacuation assembly 520 attached on either side thereof.

Referring now to Figs. 46 through 60, there is illustrated yet another surgical lighting device designated by reference numeral 530 for use with a handheld electrosurgical instrument 10, which cooperates with a detachable smoke evacuation assembly 550. As explained in more detail below, housing 532 of lighting device 530 includes snapping engagement structures 528, 528’ to facilitate the attachment of the smoke evacuation assembly 550 to the right side wall of the housing 532, as shown in Fig. 48, or the left side wall of the housing 532, as shown in Fig. 49. The smoke evacuation assembly 550 includes an inlet nozzle 524 defining a smoke evacuation passage located adjacent to the distal end of the housing 532. An elongated smoke evacuation tube 508 extends from the proximal outlet 526 of the inlet nozzle 524 for communicating with a smoke evacuator or pump. As best seen in Fig. 52, a snapping connector 536 extends from a bottom surface of the inlet nozzle 524 for engaging with the snapping connectors 528 and 528’ on the right and left side walls of the housing 532 of lighting device 530. As shown for example in Figs. 53 through 60, the snapping connector 536 includes a pair of deflectable legs 536’ and 536” for interfacing with or otherwise engaging complementary grooves 534, 534’ in the sliding connectors 528, 528’. Referring to Figs. 61 through 70, there is illustrated another embodiment of a detachable smoke evacuation assembly designated generally by reference numeral 560 for use with lighting device 510. Smoke evacuation assembly 560 includes an inlet nozzle 506 and an elongated smoke evacuation tube 566. The inlet nozzle 506 is adapted and configured for attachment to the housing 504 of lighting device 510 as explained in detail above.

A retention clip 568 is operatively positioned along the length of the tube 566, as shown in Figs. 69 and 70, for selectively engaging a proximal end portion of the surgical instrument 10, employed with surgical instrument 10 (see Fig. 65). The retention clip 568 includes a pair of barbed retention legs 568’ and 568” that serve to retain the tube 566 in a fixed location so that it does not interfere with the performance of a surgical procedure.

A barbed connector fitting 564 is operatively positioned at the proximal end of the smoke evacuation tube 566 for communicating with a smoke evacuator or pump. Other types of connectors or fitting could also be utilized. As best seen in Fig. 68, a filter element 572 is positioned with the central passageway of the connector fitting 564 for filtering the smoke filled air passing therethrough under suction by the smoke evacuator or pump. The filter element 572 can be formed from carbon, activated carbon or a similar filtration media.

Referring to Figs. 71 through 77, there is illustrated another embodiment of a detachable smoke evacuation assembly 580 for use with a lighting device 570 employed with a handheld surgical instrument 10. The smoke evacuation assembly 580 includes an inlet nozzle 576, an elongated smoke evacuation tube 582 and an adhesive strip 578. The adhesive strip 578 is dimensioned and configured to extend at least partially around the periphery of the housing 574 of lighting device 570 and securely fasten the nozzle 576 thereto.

Referring now to Figs. 78 through 86, there is illustrated another embodiment of a lighting device 590 that has an external smoke evacuation passage 588 formed integral with the housing 584 of the lighting device 590 for use in conjunction with a handheld electrosurgical instrument 10. The smoke evacuation passage 588, which can have any type of cross-sectional configuration, but as shown here has a generally oval cross-sectional configuration and extends from an inlet adjacent to the distal end of the housing 584 to an outlet 592 adjacent to or nearby the proximal end of the housing 584. A smoke evacuation tube 586 connects with the outlet 592 to enable communication with a smoke evacuator or pump, as best seen in Fig. 83. As best seen in Fig. 86, lighting device 590 has an interior cavity with a conical alignment sleeve 556 and a lighting assembly which includes a printed circuit board 546 having a plurality of embedded LED light sources 548, battery cells (not shown) and a switching mechanism 562. A lens 540 is positioned at the distal end of housing 584 and a spacer 542 is located between the lens 540 and the light sources 548 on the printed circuit board 546. An engagement collar 552 with a cooperating spring 554 is operatively associated with the interior cavity 556 of the lighting device 584 for engaging the distal end portion of the surgical instrument 10 when it is received within the interior cavity 556 of the lighting device 590. In use, when the distal end portion of the electrosurgical instrument 10 is inserted into the sleeve 556 within the interior cavity of the lighting device 590, the distal end portion of the instrument 10 will contact a flexible member and push it downwardly to engage the switching mechanism 562, causing the LED light sources 548 to illuminate. At such a time, the distal end portion of the instrument 10 will be mechanically retained by the spring biased engagement collar 552. Thereupon, a surgeon employing the electrosurgical instrument 10 will be able to incise tissue while illuminating the surgical site and removing smoke therefrom, using the lighting device 590 and its external smoke evacuation passage 588 formed integral with housing 584.

Referring to Figs. 87 through 89, there is illustrated a cylindrical or tube-shaped smoke evacuation inlet nozzle 602 having a distal inlet portion 602 and a proximal outlet portion 606 which is dimensioned and configured for communication with a smoke evacuation tube 586. Those skilled in the art will readily appreciate that inlet nozzle 602 can be employed as an alternative nozzle feature of any of the smoke evacuation assemblies described and illustrated herein. Referring to Figs. 90 through 93, there is illustrated another smoke evacuation inlet nozzle 605 that includes a rear body portion 608 that is configured for communication with a smoke evacuation tube 586 and a multi-orifice front body portion 612 configured to distribute suction across a distance to better pull surgical smoke covering a wider area in the surgical field. Those skilled in the art will readily appreciate that a multi-orifice nozzle like nozzle 605, shown in Fig. 90 can be employed as an alternative nozzle feature of any of the smoke evacuation assemblies described and illustrated herein.

Referring now to Figs. 94 through 97, there is illustrated a kit for performing a surgical procedure with a handheld surgical instrument, that includes a packaging enclosure 610 configured to retain a battery powered lighting device 510 and detachable smoke evacuation assembly 560 shown in Figs. 61 and 62. The smoke evacuation assembly 560 includes a nozzle inlet 506, an elongated tube 566 having a proximal connector 564 and a clip 568 for attachment to the proximal end of a hand held surgical instrument.

Referring now to Figs. 98 through 99, there is illustrated another kit for performing a surgical procedure, which includes a packaging enclosure 620 configured to retain a battery powered lighting device 510, a smoke evacuation assembly 560 for attachment to the lighting device 510 and a handheld electrocautery instrument 100 (such as a BO VIE ^® pencil or the like) to which the lighting device 510 is attached for illuminating the surgical site without unduly obstructing the surgeons line of sight. With this kit, a surgeon can perform an electrocautery procedure and perform smoke evacuation while illuminating the surgical site.

Turning now to Figs. 100 through 107, there is illustrated yet another embodiment of a lighting device with an integral smoke evacuation assembly designated generally by reference numeral 710, which is also designed for use with a handheld electrosurgical instrument 10. Lighting device 710 includes a generally conical housing 702 that includes integral right and left smoke evacuation passages 706’ and 706”. Each smoke evacuation passage has an inlet 708’ and 708” adjacent or near the distal end of the housing 702 for drawing in smoke and an outlet barb 704’ and 704” adjacent or near the proximal end of the housing 702 for communicating with a smoke evacuation tube 720.

As best seen in Fig. 107, lighting device 710 has an interior cavity with a conical alignment sleeve 556 and a lighting assembly which includes a printed circuit board 546 having one or more embedded LED light sources and one or more battery cells 544. A lens 540 is positioned at the distal end of the housing 702. In use, performing a surgical procedure with lighting device 710 including the steps of attaching the lighting device 710 to the distal end portion of the surgical instrument 10, which activates the LED light sources, and then connecting the outlet 704 of one of the smoke evacuation passage 706’ or 706” to a source of suction by way of smoke evacuation tube 720. If necessary, during the procedure, in order to prevent obstruction of the operative site by the smoke evacuation tube 720, the method further includes the steps of detaching the smoke evacuation tube 720 from one of the smoke evacuation passage 706’ or 706” and reattaching the smoke evacuation tube 720 to the other smoke evacuation passage 706’ or 706”, as illustrated in Figs. 102 and 103.

Referring now to Figs. 108 through 113, there is illustrated a lighting device 730 for use with a handheld surgical instrument 10 that has three distinct attachment locations (it is envisioned that there could be more than three attachment locations) for engagement with the inlet nozzle 506 of a detachable smoke evacuation assembly having an elongated smoke evacuation tube 508 for communicating with a smoke evacuator or pump (not shown). More particularly, as best seen in Fig. 110, the generally conical housing 732 of lighting device 730 includes a first attachment flange 512 on the right side of the housing 732, a second attachment flange 512’ on the left side of the housing 732 and a third attachment flange 512” on the bottom of the housing 732.

It is envisioned that the inlet nozzle 506 of a smoke evacuation assembly can be attached at either of the three or more locations. Alternatively, as illustrated in Figs.

Ill through 113, the inlet nozzles 506 of more than one smoke evacuation assembly can be attached to the housing 732 of the lighting device 730 to enhance the smoke evacuation effectiveness of the system.

Referring now to Figs. 114 through 131, there is illustrated an assembly 1100 that includes a lighting device 1120 for attachment to a handheld electrosurgical instrument 10 to illuminate a surgical site and an associated smoke evacuation tube 1110 for removing smoke generated at the surgical site. The lighting device 1120 includes an elongated housing 1102 having opposed proximal and distal end portions and defining an interior chamber containing a battery powered lighting assembly for illuminating the surgical site. The smoke evacuation tube 1110 is adapted and configured to extend and retract relative to the distal end portion of the housing 1102 to accommodate cautery blades or other types of end effectors of differing lengths associated with the handheld electrosurgical instrument 10 (i.e., cautery blades 10A, 10B and IOC), as illustrated in Figs. 117 through 119.

The smoke evacuation tube 1110 includes a proximal body portion 1108 for communicating with a source of suction and a distal body portion 1106 having a distal suction inlet for receiving smoke generated at the surgical site and a proximal connective barb 1116 for cooperating with a distal end of the proximal body portion 1108. The distal body portion 1106 of the smoke evacuation tube 1110 includes an elongated track 1118 that is adapted and configured to slidingly cooperate with a rail 1114 on an exterior wall of the housing 1102.

The smoke evacuation tube 1110 can be slidingly advanced, moved or adjusted by the user by hand, and it uses friction to remain in a desired position. Preferably, the housing 1102 has rails 1114 on the opposed side walls thereof for cooperating with the elongated track 1118 of the distal body portion 1106 of the smoke evacuation tube 1110, so that the smoke evacuation tube 1110 can be associated with the right or left sides of the housing 1102, as shown in Figs. 115 and 116. Turning now to Figs. 132 through 144, there illustrated an assembly 1200 wherein that includes the distal body portion 1206 of the smoke evacuation tube 1220 is adapted and configured to be selectively attached to the housing 1204 of the lighting device 1210 at a location along the length thereof by an adhesive band or a strap 1202. The distal body portion 1206 has a distal suction inlet 1214 for receiving smoke generated at the surgical site and a proximal connective barb 1212 for cooperating with a distal end of the proximal body portion 1208 of the smoke evacuation tube 1220, and more particularly for connecting to tubing associated with a source of suction and to provide a good seal.

The strap 1202 could be configured as a hook and loop type fastener, a cable tie or the like. A user can place the smoke evacuation tube 1220 at the appropriate distance and fix the strap 1202 or attach the adhesive to accommodate cautery blades or other types of end effector of differing lengths associated with the handheld electrosurgical instrument 10 (i.e., cautery blades 10A, 10B and IOC), as illustrated in Figs. 136 through 139. The user can then remove the strap 1202 or break the adhesive and adjust the position of the tube assembly 1220 and reattach it to the housing 1204 of the lighting device 1210.

Referring now to Figs. 145 through 165, there illustrated an assembly 1300 wherein the distal body portion 1304 of the smoke evacuation tube 1320 includes an elongated ratchet rack 1312 that is adapted and configured to cooperate with a deflectable pawl 1308 or tooth associated with an exterior wall of the housing 1302 of the lighting device 1310. More particularly, the ratchet rack 1314 includes a plurality of teeth and the deflectable pawl 1308 has a rigid locking tooth 1316 for interacting with the teeth of rack 1314 as the distal body portion 1304 is moved relative to the housing 1302 of the lighting device 1310.

The pawl 1308 acts like a spring to pinch the distal body portion 1304 of the smoke evacuation tube 1320 against the housing 1302 of the lighting device 1310. The user can flex the pawl 1308 outward and place, move or adjust the position of the smoke evacuation tube 1320, then release the pawl 1308 so it comes back down and the tooth 1316 can pinch against a specific groove between the teeth on the ratchet rack 1314 on the distal body portion 1304 and holds it in position. The housing 1302 of lighting device 1310 also has added side rails 1312 to help with stability.

Preferably, the housing 1302 of lighting device 1310 has deflectable pawls 1308 on the opposed side walls thereof for cooperating with the elongated ratchet rack 1314 of the distal body portion 1304 of the smoke evacuation tube 1320, so that the smoke evacuation tube 1320 can be associated with the right or left sides of the housing 1302, as shown in Figs. 146 and 147. In use, the smoke evacuation tube 1320 can be extended and retracted relative to the distal end portion of the housing 1302 of lighting device 1310 to accommodate cautery blades or other types of end effectors of differing lengths associated with the handheld electrosurgical instrument 10 (i.e., cautery blades 10A, 10B and IOC), as illustrated in Figs. 148 through 150.

As best seen in Figs. 161 through 165, the distal body portion 1304 has a distal suction inlet 1322 for receiving smoke generated at the surgical site and a proximal connective barb 1318 for cooperating with a distal end of the proximal body portion 1306 of the smoke evacuation tube 1320, and more particularly for connecting to tubing associated with a source of suction and to provide a good seal.

Referring now to Figs. 166 through 181, there illustrated an assembly 1400 wherein the distal body portion 1406 of the smoke evacuation tube 1420 includes an elongated gear rack 1414 that is adapted and configured to cooperate with a rotatable pinion gear 1404 associated with an exterior wall of the housing 1402 of the lighting device 1410. More particularly, the gear rack 1414 rides along a support track 1412 projecting from the exterior wall of housing 1402 and the pinion gear 1404 is supported for rotation on an axle 1416 extending from the exterior wall of housing 1404. Preferably, the housing 1402 has pinion gears 1404 on opposed side walls thereof for cooperating with the elongated gear rack 1414 of the distal body portion 1406 of the smoke evacuation tube 1420, so that the smoke evacuation tube 1420 can be associated with the right or left sides of the housing 1402, as shown in Figs. 167 and 168.

As best seen in Figs. 177 through 181, the distal body portion 1406 has a distal suction inlet for receiving smoke generated at the surgical site and a proximal connective barb 1418 for cooperating with a distal end of the proximal body portion 1408 of the smoke evacuation tube 1420, and more particularly for connecting to tubing associated with a source of suction and to provide a good seal. As best seen in Fig. 178, the gear rack 1414 is formed as an I-beam structure 1422 for engaging with the support rail 1412. In use, a user can turn the pinion gear 1404 to make the smoke evacuation tube 1420 advance distally or turn it the other way to retract it proximally. The smoke evacuation tube 1420 can be extended and retracted relative to the distal end portion of the housing 1402 of lighting device 1410 to accommodate cautery blades or other types of end effectors of differing lengths associated with the handheld electrosurgical instrument 10 (i.e., cautery blades 10A, 10B and IOC), as illustrated in Figs. 169 through 171.

It is envisioned that the smoke evacuation tube assembly could utilize two pinion gears instead of a single gear and a support rail. It is also envisioned that the smoke evacuation tube assembly could utilize a friction wheel and a linear friction surface instead of a pinion gear and linear gear rack.

Referring to Figs. 182 through 203, there is illustrated an assembly 1500 wherein the distal body portion 1504 of the smoke evacuation tube 1520 includes a telescoping inner tube 1506 that is extendable and retractable relative to the distal body portion 1504 through axial rotation by way of a helical thread to provide a suction inlet. More particularly, as best seen in Figs. 197 and 198, interior bore of the distal body portion 1504 includes an inwardly projecting boss 1516 for cooperating with a helical groove 1522 formed in the inner tube 1506.

A mounting flange 1514 is provided on the exterior surface of the distal body portion 1504 for engaging a rail 1512 on an exterior wall of the housing 1502 of lighting device 1510. Preferably, the housing 1502 has rails 1512 on the opposed side walls thereof for engaging the mounting flange 1514 of the distal body portion 1504 of the smoke evacuation tube 1520 so that the smoke evacuation tube 1520 can be associated with the right or left sides of the housing 1502, as shown in Figs. 183 and

184 In use, a user can turn inner tube 1506 relative to the distal body portion 1505 to make the inner tube 1506 advance distally or turn it the other way to retract it proximally. The inner tube 1506 can be extended and retracted relative to the distal end portion of the housing 1502 of lighting device 1510 to accommodate cautery blades of differing lengths associated with the handheld electrosurgical instrument 10 (i.e., cautery blades 10A, 10B and IOC), as illustrated in Figs. 185 through 187.

As best seen in Fig. 201 through 203, the distal body portion 1504 has a proximal connective barb 1418 for cooperating with a distal end of the proximal body portion 1508 of the smoke evacuation tube 1520, and more particularly for connecting to tubing associated with a source of suction and to provide a good seal.

Referring to Figs. 204 through 224, there is illustrated an assembly 1600 wherein the distal body portion 1606 of the smoke evacuation tube 1620 includes a plurality of graduated telescoping inner tube members (1608 and 1612) that are relatively extendable and retractable with respect to the distal body portion 1606 to provide a distal suction inlet.

A mounting flange 1618 is provided on the exterior surface of the distal body portion 1606 for engaging a rail 1616 on an exterior wall of the housing 1602 of lighting device 1610. Preferably, the housing 1602 has rails 1616 on the opposed side walls thereof for engaging the mounting flange 1618 of the distal body portion 1606 of the smoke evacuation tube 1620 so that the smoke evacuation tube 1620 can be associated with the right or left sides of the housing 1602, as shown in Figs. 205 and 206.

In use, a user can advance the graduated telescoping inner tube members 1608 and 1612 distally or retract them proximally relative to the distal end portion of the housing 1602 of lighting device 1610 to accommodate cautery blades of differing lengths associated with the handheld electrosurgical instrument 10 (i.e., cautery blades 10A, 10B and IOC), as illustrated in Figs. 207 through 209.

As best seen in Figs. 212, and 215 through 224, the distal body portion 1606 has a proximal connective barb 1632 for cooperating with a distal end of the proximal body portion 1614 of the smoke evacuation tube 1620, and more particularly for connecting to tubing associated with a source of suction and to provide a good seal. Also, the proximal end of inner tube member 1612 has an inner stopper flange 1624 for cooperating with an outer stopper flange 1626 on the distal end of the inner tube member 1608 (see Fig. 223), and the proximal end of inner tube member 1608 has an inner stopper flange 1622 for cooperating with an outer stopper flange 1628 on the distal end of the distal body portion 1606 (see Fig. 224). The distal end of inner tube member 1612 includes the distal suction inlet 1604, best seen in Fig. 222.

Those skilled in the art will readily appreciate that the subject disclosure provides a smoke evacuation solution for multiple cautery blade or end effectors tip lengths. Thus, if a surgeon changes from a 2” to a 4” or 6” cautery blade, loop or needle, the length of the smoke evacuation tube assembly can be readily adjusted to accommodate the length of the end effector. As a result, smoke can be evacuated closest to the site of cauterization, prior to more widespread smoke dispersion. In addition, should significant smoke dispersion occur, lighting which is otherwise helpful during surgery can hinder visualization by illuminating the cloud of smoke and associated challenges in visualization.

The smoke evacuation tube assemblies disclosed herein also provide a clear line of vision for a surgeon. At certain angles, the surgeon may need to retract the smoke evacuation tip proximally if it blocks his/her sight of the tip of the blade, inclusive of while performing surgical dissection in tight spaces or narrow access, for example. With a smoke evacuation element offset from the active cautery blade as disclosed herein, not only will the visualization of the dissection site be enhanced by diminished physical obstruction, but the cautery smoke will be suctioned away from the site of activity and into the evacuation mechanism. Further, visualization of the cautery activity is enhanced with improved illumination under these conditions. It is also envisioned that the smoke evacuation tube assembly could be made from a transparent plastic material to improve visualization.

The smoke evacuation tube assemblies disclosed herein also provide improved surgical access. When operating in a narrow cavity, a surgeon may only have enough space to access with a tip and may need to retract the smoke evacuator to allow the device to be small enough to fit in the cavity. Having the flexibility to move the location of the smoke evacuation tip enables flexibility for the surgeon in different spaces.

The smoke evacuation tube assemblies disclosed herein can have a cylindrical or rounded cross-sectional configuration, as shown. However, those having ordinary skill in the art will readily appreciate that the cross-sectional shape of the smoke evacuation tube assembly and/or the component parts thereof can be any other non- cylindrical shape as dictated by design, including oval, square, polygonal or the like.

While the subject disclosure has been shown and described with reference to preferred embodiments, those skilled in the art will readily appreciate that changes or modifications may be made thereto without departing from the spirit or scope of the subject disclosure.