Portable multistage negative pressure suction device

Abstract

The invention belongs to the technical field of clinical nursing, and particularly relates to a portable multistage negative pressure suction device. The device comprises a base plate and a negative pressure bag which is arranged on the base plate and can do reciprocating telescopic motion in the axial direction, and is characterized in that an energy release assembly which can do axial reset motion in the axial direction of the negative pressure bag is further arranged on the base plate and comprises an elastic reset piece and a limiting part used for fixing the elastic reset piece; the limiting part can always restrain the elastic reset piece to be in a compressed state; and a matching piece located on the axial reset path of the elastic reset piece is arranged on the negative pressure bag, and when the limiting part removes constraint on the elastic reset piece, the elastic reset piece generates the axial reset action and ejects the matching piece, and then the negative pressure bag is pushed to generate the axial stretching action. The device can perform continuous negative pressure operation without power supply, and has the advantages of wide negative pressure range and adjustable negative pressure.

Description

technical field [0001] The invention belongs to the technical field of clinical nursing, and in particular relates to a portable multi-stage negative pressure suction device. Background technique [0002] In clinical nursing, negative pressure sources are commonly used, such as negative pressure sputum suction, negative pressure drainage for gastrointestinal decompression, negative pressure suction of gastric juice, negative pressure drainage of various wounds, etc. For different nursing purposes, the pressure and air volume of the negative pressure are required to be different. In some nursing occasions, the negative pressure needs to be kept continuous without interruption. For example, negative pressure sputum suction is a common nursing operation in clinical practice. Negative pressure sputum suction can clear up the sputum in the respiratory tract in time, keep breathing unobstructed, and effectively save lives. The pressure of negative pressure sputum suction is genera...

AI Technical Summary

Problems solved by technology

At present, electric negative pressure devices commonly used in the market or in hospitals can provide continuous negative pressure, but there are the following problems: First, electricity is required, which cannot be used in environments without electricity such as patient transfer, treatment process transfer, and the field

Second, it is large in size and inconvenient to carry. It cannot be carried with you in the case of patient transfer, transfer of treatment process, first aid, etc.

Third, the price is expensive, and it has not been widely promoted and applied.

In addition, some artificial and simple negative pressure devices are also commonly used, such as disposable negative pressure plates, negative pressure tanks, etc., but there are also the following problems in application: First, the generated negative pressure is low, and it is difficult to use when suctioning sputum. In the case of high negative pressure, it needs to consume a lot of manpower and last for a long time, and it is inconvenient to nurse; second, the negative pressure generated is limited and the duration is short; third, the versatility and interchangeability are poor, and the negative pressure of low pressure The device cannot be used in the case of high-pressure negative pressure, and the high-pressure negative pressure device cannot be applied in the case of low-pressure negative pressure

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