Air pressure therapeutic apparatus and one-way pressure reducing valve

Abstract

The one-way pressure reducing valve comprises a valve body, a plunger and an exhaust diaphragm, when the one-way pressure reducing valve works, when gas flows to a gas outlet from a gas inlet, the exhaust diaphragm blocks a second communication port under the pressure of the gas, the gas pushes the plunger and flows to the gas outlet through a first communication port, and when the gas on one side of the gas inlet cannot overcome the acting force of an elastic piece, the plunger is driven to rotate; the gas stops flowing towards the gas outlet side, and the gas pressure value of the gas inlet side is lower than that of the gas outlet side. The invention further provides an air pressure therapeutic apparatus comprising the one-way pressure reducing valve, the air pressure therapeutic apparatus comprises a limb pressure sleeve, the limb pressure sleeve comprises a plurality of groups of pressure cavities arranged in parallel, and the pressure cavities can be connected with a breather pipe; by means of the one-way pressure reducing valve, the pressure of the multiple branch cavities of the pressure cavity is gradually reduced in the direction from the telecentric end to the proximal end, the pressure of the multiple sets of pressure cavities is controlled in a combined mode, the pressure of the multiple sets of branch cavities is gradually reduced, and the use cost of a host is reduced.

Description

technical field [0001] The invention relates to the technical field of medical equipment and its peripheral supporting facilities, in particular to an air pressure therapeutic instrument and a one-way pressure reducing valve. Background technique [0002] Intermittent Sequential Compression (IPC) refers to applying periodic pressure to the limbs to promote blood circulation and accelerate the return of interstitial fluid, thereby relieving edema, pain, soreness, and limb pain caused by venous edema of the limbs and arterial ischemia of the lower limbs. Heaviness, clinical symptoms of intermittent claudication. [0003] In the prior art, air pressure therapeutic apparatus is often used to implement compression therapy. The air pressure therapy instrument is controlled by an embedded single-chip microcomputer system. The air with a certain pressure is controlled by a solenoid valve and is output by an air pump. Medical equipment for physical therapy. Since the inflation pre...

AI Technical Summary

Problems solved by technology

In practical application, since the chamber pressure at the proximal end needs to be slightly lower than the chamber pressure at the far end among the two adjacent chambers, it is necessary to set the ventilation tube according to the number of chambers. The increase can bring a greater pressure density, which is of great benefit to the function of the product, but as the number of chambers increases, the vent pipe also increases, and it is necessary to increase the number of control solenoid valves inside the host. Increase the number of output chambers, and correspondingly increase the cost of the main engine; if the number of chambers is only increased in parallel, but the pressure between the increased adjacent chambers is the same, the treatment effect is not improved. It can be seen that the existing limb pressure sleeve The number of chambers in the cartridge is often limited by the line connection, which reduces the therapeutic effect of the therapeutic device

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