JPH058986Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an air bed 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 are adjacent to each other and alternately inflate and deflate are arranged as shown in FIG. It is known that it is effective to use an airbed B that alternately supports the body weight of a person at different locations.

[Problems to be solved by the invention] The air bed mentioned above normally has two systems of supply and exhaust systems, and the supply and exhaust systems are controlled so that the air cells C are repeatedly expanded and deflated alternately every 10 to 20 minutes. is being done. However, if it becomes necessary to perform emergency cardiopulmonary resuscitation on a patient, it will be difficult to perform cardiopulmonary resuscitation if the air cell C is filled with air, so it is necessary to quickly evacuate the air cell C. There is. In addition, if an abnormality occurs in the device for some reason, such as when the air pressure in the air cell C becomes abnormally higher than the design withstand pressure, or if the air cell C that should be evacuated is not properly evacuated. It is dangerous to leave the device unattended when it is gone. Therefore, in order to ensure the safety of the device, it is desirable to be able to reduce the pressure inside the air cell C by manual operation.

An object of the present invention is to provide an air bed that allows the air cells to be rapidly evacuated in an emergency.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the airbed according to the present invention alternately inflates and deflates by injecting and discharging air through two lines of piping for supplying and discharging air. In an airbed formed by arranging a large number of air cells, a portion of each of the two lines of piping is connected to an exhaust valve as an emergency exhaust pipe, and the open ends of the two emergency exhaust pipes are connected to each other in the exhaust valve. is normally closed by a rotating plate rotatably attached to the exhaust valve, and by rotating the rotating plate, the open end is aligned with a hole provided in the rotating plate, and the emergency exhaust valve is closed. It is characterized by being able to dissipate the air inside the tube to the outside.

[Operation] The airbed having the above-described configuration urgently exhausts the air in the air cell by manually rotating the exhaust valve.

[Example] The present invention will be explained in detail based on the example illustrated in FIGS. 1 to 3.

FIG. 1 is a schematic diagram of an air supply and exhaust system and an emergency exhaust section of an airbed according to the present invention. The air bed has two systems of air cells 1a and 1b that support the patient,
The air supply pump 2 is connected to the air cell 1 through two systems of supply and exhaust pipes 3a and 3b connected to the air cells 1a and 1b.
a, 1b. Supply and exhaust pipes 3a, 3b
Emergency exhaust pipes 4a and 4b are connected to these, respectively, and emergency exhaust valves 5 are attached to the ends of these pipes.

FIG. 2 is an exploded view of the emergency exhaust valve 5, and two holes (not shown) in the fixed plate 6 are provided with an emergency exhaust pipe 4.
A and 4b are connected to each other, and a rubber gasket 7 is closely attached to the fixing plate 6 and has two holes 7a and 7b communicating with these holes. Also,
A shaft 8 protrudes from the center of the fixed plate 6 and the packing 7, and a rotating plate 9 is rotatably attached to the shaft 8, and the rotating plate 9 is brought into close contact with the packing 7. The rotating plate 9 has a knob 9a and two holes 9.
b, 9c are provided, and the holes 9b, 9c communicate with the holes 7a, 7b of the gasket 7 by rotation.

During operation, intake and exhaust are alternately repeated into the air cells 1a and 1b every 10 to 20 minutes, for example, via switching valves (not shown) provided in the supply and exhaust pipes 3a and 3b. In a normal state, as shown in FIG. 3a, the holes 9b and 9c of the rotating plate 9 and the fixed plate
The holes 7a and 7b of the gasket 7 are misaligned, and the hole 9 of the rotary plate 9 is displaced by the gasket 7.
b, 9c are sealed, so the exhaust pipes 4a, 4
The air in b is not released to the outside.

However, in an emergency exhaust state, the knob 9a moves the rotary plate 9 at a predetermined angle, for example 90°, as shown in FIG. 3b.
By rotating the emergency exhaust pipes 4a and 4b connected to the fixed plate 6 and the holes 9b and 9c of the rotating plate 9, the emergency exhaust pipes 4a and 4b are brought into alignment through the holes 7a and 7b of the gasket. 4a, 4b are in an open state, and exhaust is performed through the holes 9b, 9c, and the air in the air cells 1a, 1b is rapidly exhausted.

[Effects of the Invention] As explained above, the air bed according to the present invention is equipped with a manual exhaust valve, thereby making it possible to arbitrarily exhaust the air cell and to perform emergency exhaust from the air cell.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the air bed according to the present invention, with Figure 1 being a schematic configuration diagram, Figure 2 being an exploded perspective view of the exhaust valve, and Figures 3a and 3 being explanatory diagrams of the operation. Yes, and FIG. 4 is an explanatory diagram of the operation of the air bed. Symbols, 1a and 1b are air cells, 2 is a pump, 3
a, 3b are supply and exhaust pipes, 4a, 4b are emergency exhaust pipes, 5 is an emergency exhaust valve, 6 is a fixed plate, 7a, 7b,
9b and 9c are holes, 7 is a gasket, 8 is a shaft, 9 is a rotating plate, and 9a is a knob.

Claims (1)

[Scope of utility model registration request] In an airbed consisting of a large number of air cells that are arranged to alternately expand and contract by injecting and discharging air through two lines of air supply and exhaust piping, a portion of each of the two lines of piping is used for emergency exhaust. The opening ends of the two emergency exhaust pipes are connected to the exhaust valve as pipes, and the open ends of the two emergency exhaust pipes are normally closed by a rotary plate rotatably attached to the exhaust valve, and the rotation of the rotary plate is The air bed is characterized in that the opening end is brought into alignment with a hole provided in the rotating plate by movement, so that the air in the emergency exhaust pipe can be dissipated to the outside.