JPH0446747Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] 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 pressure sores 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 is effective, as shown in FIG.

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 oval cross section, the above-mentioned desired performance 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 cell is made of an elastic sheet, and two rows of tubes that seal air inside and communicate at both ends are stacked one on top of the other, and the shape is maintained by a holding member attached to the outside of the air cell. It is characterized by the following.

[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 an equivalent elliptical external dimension.

[Example] The present invention will be explained in detail based on the example illustrated in FIGS. 1 to 4.

FIG. 1 is a perspective view of an 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. The air cell 1 is made of elastic rubber or synthetic resin sheet, Both ends of two upper and lower tubes 2 and 3 that seal air inside are communicated, and are interconnected by a plurality of connecting sheet pieces 4 attached to the outside so that the tubes 2 and 3 do not separate from each other. . Furthermore, an air supply port 5 for injecting and discharging air is attached to a part of the air cell 1.

The air mat according to the present invention is constructed by arranging a large number of air cells 1 each containing air, as shown in FIG. 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 placed on a bed 7 for use. The air cell 1 has two tubes 2 and 3 stacked on top of each other, and when the air cell 1 is filled with air, even when a load is applied from above, the width of the air cell 1 is larger than the width of the cell 1. The spread is large,
The patient can be stably supported. Moreover, since the tubes 2 and 3 are connected by the connecting sheet piece 4, they do not separate in the vertical direction even when filled with air, and can maintain a stable shape. 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 ports 5. The inlet and exhaust pipes 8 and 9 are connected to a pressure device such as a compressor via rotary valves (not shown), and supply and exhaust air to the two sets of air cells 1 alternately at intervals of, for example, 5 to 25 minutes. Repeatedly, the area that supports the patient's weight is changed.

The air cell 1 may be manufactured by connecting two independent tubes 2 and 3 as described above, or by aligning parts of one annular tube in parallel. You can.

[Effects of the invention] As explained above, in the air mat according to the invention, the air cell used maintains a stable shape by connecting two tubes through a sheet piece.
Even if the air cells on both sides contract and settle, they are less likely to collapse or deform due to the patient's weight, and the patient can be supported with appropriate pressure.The structure of the air cells is relatively simple and easy to manufacture. It is.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the air mat according to the present invention, in which 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 an explanatory diagram of the operation of the air mat. Reference numeral 1 is an air cell, 2 and 3 are tubes, 4 is a connecting sheet piece, 5 is an air supply port, 6 is a cover, 7 is a bed, and 8 and 9 are intake and exhaust pipes.

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 air cells that contract, the air cells are made of an elastic sheet, and two rows of tubes that seal air inside and communicate at both ends are stacked one on top of the other, and the outside of the air cells is made of an elastic sheet. An air mat characterized in that its shape is maintained by a holding member attached to the air mat.