JPH0446746Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an air mat that supports, for example, a patient by means of a plurality of alternately inflated air cells.

[Prior Art] In order to alleviate bedsores in bedridden patients and irritation to the skin of burn patients, a large number of air cells C that can be expanded and contracted are arranged as shown in FIG.
It is known that an air mat M in which the air cells C are alternately inflated and deflated to alternately support the patient's weight at different locations as shown in b is effective.

When the air cell C used here is inflated, it remains stable even if the air cells C on both sides are contracted, maintains a constant width, does not collapse too much, and supports the patient with appropriate support pressure. desired.

[Problems to be solved by the invention] However, if these air cells C are constructed of rubber tubes with a simple circular or elliptical cross section, the desired performance described above is often not obtained, and it is difficult to provide patient comfort. Not enough support. Further, if the air cell C has a complicated structure, it is difficult to manufacture it, so it is desirable that the air cell C has a simple structure.

The purpose of the present invention is to solve the above-mentioned problems and to provide an air mat whose air cells are easy to manufacture and have good performance.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the air mat according to the present invention is constructed by arranging a large number of air cells that alternately expand and contract by injecting and discharging air. In the air mat, the air cells have a substantially rectangular parallelepiped shape made of elastic sheets, and the center portions of the sheets on both sides are glued in the longitudinal direction to form two rows of upper and lower air chambers. .

[Function] In the air mat having the above-described configuration, the air cells maintain a stable shape and are less likely to be crushed or deformed than a simple air cell having the same external dimensions.

[Embodiments] The present invention will be explained in detail based on embodiments shown in FIGS. 1 to 4.

Fig. 1 is a perspective view of one air cell used in the air mat according to the present invention, and Fig. 2 is a cross-sectional view of the air cell with air removed. It is made of a sheet and has a substantially rectangular parallelepiped shape, and a bonded part 2 is formed in the center of the sheet by thermally welding the sheets on both sides in the longitudinal direction, for example.
Both ends of the air chambers 3 and 4, which are divided into upper and lower parts, are communicated with each other. Further, an air supply section 5 for injecting and discharging air is attached to a part of the air cell 1.

As shown in FIG. 3, the air mat according to the present invention is constructed of a large number of air cells 1 each containing air arranged in parallel. The air cells 1 arranged in parallel are housed in a cover 6 and are connected to each other by means such as belts, snaps, buttons, etc. so as not to be displaced from each other, and are used by being placed on a bed 7. Since the air cell 1 is divided into two upper and lower air chambers 3 and 4 via the adhesive part 2, the air cell 1
When the inside is filled with air, even when a load is applied from above, the vertical expansion of the air cell 1 is larger than the widthwise expansion, and the patient can be stably supported. The plurality of air cells 1 are divided into, for example, two sets of every other cell, and are connected to two separate systems of inlet and exhaust pipes 8 and 9 via respective air supply sections 5. The inlet/exhaust pipes 8 and 9 are connected to a pressure device such as a compressor via a rotary valve (not shown), and the two sets of air cells 1 are alternately injected and exhausted at intervals of, for example, 5 to 25 minutes. Repeatedly, the area supporting the patient's weight is changed.

FIG. 4 shows another embodiment, in which the central adhesive part 2
are provided not continuously but intermittently. Also in this case, the air chambers 3 and 4 are formed one above the other, and have the same effect as the previous embodiment.

[Effects of the invention] As explained above, the air mat according to the invention maintains a stable shape by providing a longitudinal adhesive part in the center of the air cells, so that the air mats on both sides do not contract and settle. It is difficult to collapse or deform under the patient's weight, and can stably support the patient. Furthermore, the air cell has a relatively simple structure and is easy to manufacture.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the air mat according to the present invention, where Figure 1 is a perspective view of an air cell, Figure 2 is a sectional view, and Figure 3 is a partially enlarged sectional view of the air mat. FIG. 4 is a perspective view of an air cell of another embodiment, and FIG. 5 is an explanatory diagram of the operation of the air mat. 1 is an air cell, 2 is an adhesive part, 3 and 4 are air chambers, 5 is an air supply part, 6 is a cover, 7 is a bed, 8 and 9
is the inlet and exhaust pipe.

Claims (1)

[Scope of utility model registration request] By injecting and expelling air, it alternately expands and
In an air mat formed by arranging a large number of contracting air cells, the air cells have a substantially rectangular parallelepiped shape made of elastic sheets, and the center portions of the sheets on both sides are glued in the longitudinal direction to form two rows of air cells, one above and the other. An air mat characterized by forming a chamber.