Medical sealed negative pressure drainage bag

Abstract

The invention discloses a medical sealed negative pressure drainage bag, comprising a drainage tube (1), a capacity bag (2) and a negative pressure source (3), wherein the negative pressure source (3)is a hollow negative pressure bottle and is sealed in the capacity bag (2). The drainage bag belongs to a closed system, can effectively prevent infection, has the advantages of convenient use and high drainage efficiency, can fully utilize the bag body capacity, can accurately measure the amount of liquid accumulated in a single drainage, and promotes the rehabilitation of patients.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a medical closed negative pressure drainage bag. Background technique [0002] Medical negative pressure drainage devices are mainly used for drainage of pleural and abdominal diseases or postoperative effusions. Clinically, drainage devices, drainage bags, drainage bottles, etc. are commonly used. Among them, drainage bags are more widely used due to their small size and low cost. Drainage bags can be divided into negative pressure inside the bag and negative pressure outside the bag. [0003] The negative pressure outside the bag is that the negative pressure source is outside the liquid storage bag, and the external negative pressure generator is used to generate negative pressure in the bag and then drain the effusion into the bag. However, this kind of product is inconvenient to use and requires Cleaning the negative pressure generator brings inconvenience to the nu...

AI Technical Summary

Problems solved by technology

The disadvantages of the drainage bag are: it is inconvenient to use, the drainage interface needs to be blocked before drainage to ensure negative pressure, and then the drainage tube is connected, and the non-closed drainage system increases the risk of infection; Insufficient negative pressure will affect the drainage efficiency, and there is a risk that the fluid in the bag will be squeezed into the drainage tube; the cavity of the negative pressure generator is connected with the cavity of the drainage bag, The presence of fluid in the bag restricts the operating space of the negative pressure generator, so that the capacity of the bag cannot be fully utilized

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