DESC:FIELD OF THE INVENTION:
This invention relates to the field of mechanical engineering.

This invention, particularly, relates to bed mattresses primarily intended for nursing homes, hospitals, and house use in order to reduce development of pressure ulcer.

Particularly, this invention relates to a mattress for preventing pressure ulcers.

BACKGROUND OF THE INVENTION
A Pressure Ulcer, also known as Bed sore, is an injury to the skin and tissue under it. A pressure ulcer develops when the blood supply that provides the tissue with oxygen and nutrients is cut off, and the tissue dies due to lack of oxygen and nutrients. When the patient remains in the same position for a prolonged period of time, it can start the process of tissue breakdown typically resulting from a combination of factors including pressure, shearing forces, friction, and moisture.
Bony prominence areas like shoulder blades, sacrum, and heels are the most susceptible to damage, but in reality, any area of the body is vulnerable if it is not managed, redistributed, or relieved. There are many factors that contribute to the development of pressure ulcers; external pressure, shear force, friction, temperature, humidity, posture, infection, nutrition, and so on. In these factors, the external pressure is considered to be the primary cause. By the external pressure applied to a skin area, the normal flow of blood and oxygen to tissue in that area is reduced. The average blood pressure in capillaries is 32 [mmHg] in the arteriolar limb.

Recent investigations indicate that more than two million hospitalized patients develop pressure ulcers each year, which results in a significant increase in hospitalization costs and typically prolongs hospital stay by 8-10 days.

Thus, a mattress for relieving pressure ulcers solving the above said problems is needed.

OBJECTS OF THE INVENTION:
An object of the invention is to provide a mattress which alleviates problems of pressure ulcers.

Another object of the invention is to reduce hospitalization costs arising out of occurrence of pressure ulcers.

Yet another object of the invention is to reduce hospitalization time arising out of occurrence of pressure ulcers.

SUMMARY OF THE INVENTION:
To achieve the aforementioned problems the mattress, used for preventing pressure ulcers, according to present invention, is a mattress that includes a first Polyurethane foam layer with cylindrical pins of foam, a soft polyurethane foam layer over the first layer, an intermediate layer of fabric sheet over the foam mattress layer with mesh, a second gel filled layer of mesh over the intermediate layer. The foam layer with cylindrical pins and soft polyurethane layer will provide proper support with pressure relief and the gel mesh mattress layer are configured to increase the contact area of the patient's body with the bed, according to a patient's weight. The intermediate layer of fabric of water repellent is configured to provide channel to drain the sweating or incontinence and keep the body dry. The second gel mesh layer is designed to distribute the pressure and provide cooling effect to reduce swatting under the patient's body. These and other features of the present invention will become readily apparent upon further review of the following specification and drawings.

According to this invention, there is provided a mattress for preventing pressure ulcers, said mattress comprises:
- a base comprising a set of cylindrical pins being integrated as part of the base;
- a middle layer of foam, atop said base, said middle layer comprising pads and channels, characterized in that, said pads are extruded parts of said middle layer of foam, said extruded blocks comprising channels having ‘U’ slots;
- a top layer with and gel pads with mesh on which a patient is laid.

Typically, said cylindrical pins are polyurethane foams cylindrical pins.

Typically, said cylindrical pins are extruded from said base.

Typically, said sheet of foam with extruded blocks comprising a plurality of ‘U’ slot on said sheet of foam to be press fit directly on to the plurality of cylindrical pins which allows said base to be placed on the base of said mattress.

Typically, said gel pad mesh is fitted with polyurethane foam with resting pads with channel.

Typically, said gel pad is a thin mesh of gel filled sheet with square holes that fits on the extruded block of middle soft foam.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
This invention will now be described in relation to the accompanying drawings, in which:

FIGURE 1 is an exploded perspective view of an embodiment of a mattress for preventing pressure ulcers according to the present invention;

FIGURE 2 is a front and top view of middle layer of an embodiment of a mattress for prevention of pressure ulcers according to the present invention having channels for air as well as sweating& incontinence; and

FIGURE 3 is a front and top view of gel mesh top layer of an embodiment of a mattress for prevention of pressure ulcers according to the present invention having property to provide proper support and provide cooling effect to human body.

DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
According to this invention, there is provided a mattress for preventing pressure ulcers.

FIGURE 1 is an exploded perspective view of an embodiment of a mattress for preventing pressure ulcers according to the present invention.

In at least an embodiment, the bed or mattress is comprised of a base with a bottom support or a base (1) with cylindrical pins of polyurethane foam (2). These cylindrical pins are integrated part of the base, i.e. the bottom support (1), in which pins are extruded part of high density base foam. Cylindrical pins provide body contouring effect. When a bony prominence part of human body rests on top of the bed, pins under that area get deformed - since weight applied on that pins is more as compared to other pins surrounding it - and provides body contour. A sheet of foam (2) with extruded blocks comprising a plurality of ‘U’ slot on the sheet of foam is press fit directly on to the plurality of cylindrical pins which allows the bottom support (1) to be placed on the base of the bed.

In at least an embodiment, the bed is further comprised of a successive (middle) layer of soft polyurethane foam (3) with pads (4) and channels (5). Pads (4) are extruded parts of foam sheet. Theses extruded blocks have channels (‘U’ Slots on it). Gel pad (6) with mesh (7) gives pressure relief with cooling effect of human body resting on it. Gel pad mesh is fitted with polyurethane foam with resting pads (4) with channel (5). The channels are an integrated part of the soft polyurethane foam (3) and are the ‘U’ shaped slots provided on extruded blocks.

In at least an embodiment, the bed is further comprised of a top layer with gel pads (6) with mesh (7) on which a patient using body support (3), (7) is carried. The base (1), with cylindrical pins (2) of polyurethane foam, which can be flexible with rigid support, is, in effect, a second layer provide proper weight distribution on pads (4) and channel (5) to provide air circulation. Gel pad is a thin mesh (net) of gel filled sheet with square holes that will fit on the extruded block of middle soft foam. The top layer mesh (7) is a gel pad with square holes embedded in it.

While this detailed description has disclosed certain specific embodiments for illustrative purposes, various modifications will be apparent to those skilled in the art which do not constitute departures from the spirit and scope of the invention as defined in the following claims, and it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

,CLAIMS:WE CLAIM,

1. A mattress for preventing pressure ulcers, said mattress comprising:
- a base (1) comprising a set of cylindrical pins (2) being integrated as part of the base;
- a middle layer of foam (3), atop said base (1), said middle layer comprising pads (4) and channels (5), characterized in that, said pads (4) are extruded parts of said middle layer of foam, said extruded blocks comprising channels having ‘U’ slots;
- a top layer with and gel pads (6) with mesh (7) on which a patient is laid.

2. A mattress for preventing pressure ulcers as claimed in claim 1 wherein, said cylindrical pins (2) are polyurethane foams cylindrical pins.

3. A mattress for preventing pressure ulcers as claimed in claim 1 wherein, said cylindrical pins (2) are extruded from said base (1).

4. A mattress for preventing pressure ulcers as claimed in claim 1 wherein, said sheet of foam (2) with extruded blocks comprising a plurality of ‘U’ slot on said sheet of foam to be press fit directly on to the plurality of cylindrical pins which allows said base (1) to be placed on the base of said mattress.

5. A mattress for preventing pressure ulcers as claimed in claim 1 wherein,, said gel pad (6) mesh (7) is fitted with polyurethane foam with resting pads (4) with channel (5).

6. A mattress for preventing pressure ulcers as claimed in claim 1 wherein, said gel pad is a thin mesh of gel filled sheet with square holes that fits on the extruded block of middle soft foam.

Dated this 9th day of October, 2017.

CHIRAG TANNA
of INK IDEE
APPLICANT’s PATENT AGENT