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Patent Searching and Data


Title:
MATTRESS ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2019/202596
Kind Code:
A1
Abstract:
A mattress assembly comprises a mattress with impermeable surface and a top layer located above said impermeable surface, which is made of a 3D fabric, having a thickness sufficient to allow free flow of air and of CO2 therethrough.

Inventors:
DAN ON JOSHUA (IL)
Application Number:
IL2019/050438
Publication Date:
October 24, 2019
Filing Date:
April 17, 2019
Export Citation:
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Assignee:
COMFORT SYSTEMS 2007 LTD (IL)
International Classes:
A47G9/02; A47C27/00; A47C27/12; A61B5/00
Domestic Patent References:
WO2015123729A12015-08-27
Foreign References:
KR20180016246A2018-02-14
US9572528B12017-02-21
Attorney, Agent or Firm:
LUZZATTO, Kfir et al. (IL)
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Claims:
CLAIMS

1. A mattress assembly comprising a mattress with impermeable surface and a top layer located above said impermeable surface, which is made of a 3D fabric, having a thickness sufficient to allow free flow of air and of C02 therethrough.

2. A mattress assembly according to claim 1, wherein the thickness of the top layer is between 1 and 3 cm.

3. A mattress assembly according to claim 1, wherein the mattress is an infant mattress.

4. A mattress assembly according to claim 1, wherein the top layer is detachable from the mattress.

5. A mattress assembly according to claim 1, wherein the top layer is wrapped around the mattress.

6. A mattress assembly according to claim 1, wherein the top layer is secured to the mattress by fasteners selected from the group consisting of elastic bands, buttons, zipper, VELCRO straps, snap fasteners, pins and safety pins.

7. A top layer for a mattress assembly consisting of a 3D fabric adapted to be fastened above an infant mattress.

8. A mattress assembly according to claim 1, comprising a C02 sensor positioned in the vicinity of the head of the sleeping individual, wherein the sensor is adapted to generate an alarm signal when a predetermined level of C02 is exceeded.

9. A mattress assembly according to claim 8, wherein the C02 sensor is provided in a removable top layer.

10. A removable top layer for mattress comprising a C02 sensor coupled with 3D fabric.

Description:
MATTRESS ASSEMBLY

FIELD OF THE INVENTION

The present invention relates to a mattress, particularly for infants. More particularly, the invention relates to a mattress assembly suitable to improve the breathing freedom and the safety of infants.

BACKGROUND OF THE INVENTION

Sudden infant death syndrome (SIDS), also known as cot death or crib death as is usually occurs during sleep, makes up about 80% of sudden and unexpected death of infants less than one year of age. Factors that increase the risk for SIDS include sleeping on the stomach or side and overheating. These factors may increase re-breathing of carbon dioxide, thereby leading to hypoxia. Hence, the primary recommendation to reduce the risk of SIDS is to place the baby on his back while sleeping, on a firm and flat mattress and in an air-conditioned or ventilated room. However, at about the age of 4-6 months, babies learn to roll onto their bellies and remain in this position being still unable to roll back onto their backs. In addition, at this age, the infant's brain ability to control breathing and arousal from sleep is still lacking compared to an adult. Hence, following the above-mentioned recommendation may not be successful at reducing the risk for SIDS. Furthermore, an infant suffering from reflux may regurgitate while sleeping, causing blockage of the airways and leading to accumulation of C0 2 in the breathing area of the child, thus creating a dangerous situation for the baby.

So far, the art has failed to provide a simple, effective and cost-effective way to improve the breathing freedom of infants and to help preventing the aforementioned problems. It is an object of the present invention to provide a mattress assembly that is suitable to alleviate such problems, which is easy to manufacture, simple to operate and cost effective. Other objects and advantages of the invention will become apparent as the description proceeds.

SUMMARY OF THE INVENTION

A mattress assembly comprising a mattress with impermeable surface and a top layer located above said impermeable surface, which is made of a 3D fabric, having a thickness sufficient to allow free flow of air and of C0 2 therethrough. A typical thickness of the top layer is between 1 and 3 cm, but different thicknesses can be provided for different purposes.

Although the invention is applicable to any kind of mattresses, one particularly useful application is when the mattress is an infant mattress. Accordingly, while reference is made herein particularly to "infants" it is understood that the invention may be also useful for adults suffering from a variety of conditions, such as respiratory problems. Therefore, wherever reference is made to "infants" or to an "infant mattress", it should be understood to be equally applicable, mutatis murtandis, to adult subjects.

In one embodiment, the top layer is detachable from the mattress. In another embodiment, the top layer is wrapped around the mattress. The top layer can be secured to the mattress by any suitable means, e.g., by fasteners selected from the group consisting of elastic bands, buttons, zipper, VELCRO straps, snap fasteners, pins and safety pins.

The invention also encompasses a top layer for a mattress assembly consisting of a 3D fabric adapted to be fastened above an infant mattress.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 schematically illustrates an example of the structure of a 3D fabric;

Fig. 2 schematically illustrates another example of a structure of a 3D fabric;

Fig. 3 schematically illustrates a mattress assembly according to one embodiment of the invention; and Fig. 4 illustrates another mattress assembly according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

The mattress assembly of the invention comprises an infant mattress with impermeable surface that can be easily cleaned with moist cleaning agents, and a top layer located above said impermeable surface, which is made of a 3D fabric, having a thickness sufficient to allow free flow of air and of C0 2 therethrough. In one embodiment, the 3D top layer is adapted to allow the passage of liquids, such as those that an infant may regurgitate during sleep. In another embodiments the 3D fabric is located also in areas other than close to the infant's head, thus allowing other liquids, such as urine, to flow through it and away from the infant's body.

Although the description refers mainly to an assembly for a baby's mattress, for the sake of simplicity, it should be noted that the invention is not limited to a use only for a baby's mattress, and can be compatible with any type, shape and size of mattress.

In one aspect, the top layer of the mattress assembly comprises breathable three- dimensional (3D) fabric 1 to 3 cm thick.

In the context of this invention, "3D fabric" (also termed "air mesh fabric", "spacer fabric" or "sandwich fabric") refers to a fabric consisting of fibers in all three axes of plane. The structure of the fibers within the fabric creates a plurality of run-through pores between the top and bottom surfaces of the fabric, which are arranged in a honeycomb form, and allow the dispersion of gasses and liquids through the fabric. Thus, a 3D fabric is also termed "a breathable fabric". 3D fabrics of various types are well known in the art and are therefore not described herein in detail, for the sake of brevity. Illustrative and non-limitative examples of 3D fabrics are described, for instance in WO 98/39507 and in WO 98/39508. Two examples of 3D fabrics are shown in Figs. 1 and 2. Arrow 100 in Fig. 1 indicates the passage created in the fabric, through which air, C0 2 and liquids may flow. Similarly, passages 200 are seen in Fig. 2. Of course, the structures of 3D fabrics shown in these figures are merely illustrative, and many different types and shapes of such fabrics are possible, as well known to persons skilled in the art.

The 3D fabric can be manufactured by routine technologies, e.g., weaving, knitting, nonwoven technologies, crocheting and braiding.

The 3D fabric can consist of natural fibers, such as cotton, silk, linen or wool, or synthetic fibers, such as polyester, nylon or rayon, or any combination thereof.

The 3D fabric, which is permeable to liquids, prevents the accumulation of liquids such as urine and regurgitation on the surface of the top layer for a mattress, thereby maintaining hygiene environment around the baby, as well as preventing the liquids from blocking the baby's airways, even if the baby is lying with his face against the mattress. In addition, the fiber material of the top layer may also absorb moisture and also contribute to maintaining the infant dry.

Additionally, the 3D fabric allows air circulation through the top layer for a mattress, thus dispersing C0 2 away from the breathing area of the infant lying with his face against the mattress and consequently reducing re-breathing of C0 2 , and simultaneously providing a continuous flow of fresh air to the child. The top layer of a mattress assembly that consists of 3D fabric may be termed "breathable"

Furthermore, the property of air circulation through the 3D fabric of the top layer creates a ventilation effect, which provides thermal stability and prevents the baby from overheating while lying on the mattress. It should be noted that the top layer for a mattress may have different shapes and sizes (i.e. length and width), and may be adapted to be attached to any shape and size of a mattress. Moreover, the 3D fabric may be provided on the entirety of the surface of the mattress assembly, or only at certain locations, e.g., near the head of the infant. Additionally, the top layer of the mattress assembly can be made of different types of fabric, some of which may be 3D and others may not be 3D. This is schematically shown in Fig. 3, in which an infant 300 is seen on a mattress assembly 301, consisting of a top layer 302 and a mattress with impermeable upper surface, 303. Top layer 302 can all be made of the same 3D fabric, or may consist of mixed areas of regular fabric and 3D fabric. Moreover, different kinds of 3D fabric can be employed. For instance, the enlarged view 304 of the area closer to the infant's head, is seen to be made of 3D fabric having larger passageways provided in it then the fabric closer to the bottom portion of the infant's body, seen in the enlarged view 305. The upper portion of the bed, near the infant's head, may have to receive and allow to flow away substances that are much more viscous than urine, e.g., vomit, while for more flowable liquids such as urine smaller passageways may suffice. Other embodiments provide for a homogeneous passageways size throughout the top cover, as will be further discussed with reference to Fig. 4.

According to one embodiment, the top layer for a mattress and the mattress form a single unit, so that the top layer and the mattress are inseparable. For example, the top layer for a mattress can be sewn onto the mattress.

According to another embodiment, the top layer is detachable from the mattress. The option to detach the top layer of the mattress assembly allows the top layer to be easily cleaned and dried. Cleaning the top layer for a mattress enables the removal of any non- sanitary particles from the top layer, for example dust particles, mold, bacteria, stains and remnants (e.g., of mucus, urine and regurgitation), and thus maintains hygienic environment for the baby. In some embodiments, the top layer can be machine washed.

Once the top layer of the assembly is removed, the impermeable surface of the mattress can be cleaned by any method, for example, hand wash, machine wash or dry cleaning.

According to one embodiment, the top layer of the mattress assembly is sized and shaped so as to efficiently cover the mattress and is simply placed on top of the mattress, in contact with the impermeable surface. This is illustrated in Fig. 4 in which a top cover made of 3D fabric 400 is placed upon a mattress, and the fabric is seen to have a homogeneous passageway size. The extra length of the fabric, indicated by numeral 401, may be tucked under the mattress to create the final assembly.

According to another specific embodiment, the detachable top layer is wrapped around the mattress, for example, in a sheet-like manner or a cover-like manner. The wrapped top layer can cover the top surface of the mattress and at least a part of the side surfaces of the mattress. The wrapped top layer can also cover the entire side surfaces of the mattress. In addition, the wrapped top layer can also cover a part or the entire bottom surface of the mattress.

The term "sheet-like manner" as used herein refers to a top layer for a mattress that can be placed on top of the mattress and any excess of fabric may be tucked around the sides and optionally the bottom surface of the mattress. In order to keep the mattress fully covered by the flat sheet-like top layer at all times, the top layer may be fastened to itself by fastening means, such as buttons, VELCRO ® straps, snap fasteners, pins and safety pins. Alternatively, the top layer may have its four corners, and optionally two or four of its sides, fitted with elastic or a drawstring. The term "cover-like manner" as used herein refers to two layers of fabric, wherein the mattress in encased between the two layers of the cover. The two layers of the cover may be attached to each other by fastening means, such as buttons, VELCRO ® straps, snap fasteners, pins and safety pins. Usually, the two layers of the cover are stitched together on three sides of the cover, while the fourth side may comprise said fastening means, in order to keep the mattress fully encased within the cover at all times. The layer that does not come into contact with the impermeable surface of the mattress on which the infant lies does not necessarily have to be made of 3D fabric, although it can of course be such.

According to a further specific embodiment, the wrapped top layer or the top layer placed on top of the mattress are secured to the mattress via fastening means. The fastening means are selected from the group consisting of elastic bands, buttons, zipper, VELCRO ® straps, snap fasteners, pins and safety pins.

A high level of C0 2 may be indicative of a problem with the sleeping individual's breathing that may require immediate attention, particularly when infants are concerned, but also with adults suffering from respiratory problems. Accordingly, in one embodiment a C0 2 sensor is provided near the infant's head, which may trigger an alarm when a predetermined level of C0 2 is detected. The detector may be integrated with the mattress, or can be coupled to a removable top layer, when it is separate from the mattress itself.

A variety of low-cost, high-precision CO2 sensors is available on the market and an appropriate model can be easily selected by the skilled person. For example, a variety of CO2 sensors is available from C02Meter, Inc., USA (https://www.co2meter.com), but many other sources of suitable meters are available, for instance by SST Sensing Ltd (https://www.sstsensing.com). All the above description has been provided for the purpose of illustration and is not intended to limit the invention in any way, except as provided for in the appended drawings.