Negative-pressure drainage device

Abstract

The invention discloses a negative-pressure drainage device, and belongs to the field of the medical apparatuses and instruments. The negative-pressure drainage device disclosed by the invention comprises a first drainage bottle, a second drainage bottle arranged below the first drainage bottle and communicated with the lower face of the first drainage bottle, a drainage tube and a negative-pressure conduit, wherein the drainage tube and the negative-pressure conduit are communicated with the first drainage bottle, the first drainage bottle and the second drainage bottle are detachably connected, and the joint part of the first drainage bottle and the second drainage bottle is provided with a valve I. The drainage tube communicates the bottle cavity of the first drain bottle with a part requiring drainage, the negative-pressure conduit communicates the bottle cavity of the first drain bottle with a negative pressure source, the negative-pressure drainage device can clean liquid in the drainage bottles without interrupting drainage for a patient, and can automatically regulate and control values of air pressure in the drainage bottles, so that drainage can be performed under set negative pressure.

Description

technical field [0001] The invention relates to a medical device, in particular to a negative pressure drainage device for draining fluid in a patient's body. Background technique [0002] Negative pressure drainage devices are also called negative pressure suction devices. Common negative pressure suction devices include disposable negative pressure suction devices and reusable negative pressure suction devices. Among them, the disposable negative pressure suction device has problems such as unstable negative pressure, non-adjustable pressure, and easy to cause reverse flow of the suction; reusable negative pressure suction devices generally use manual pressure adjustment devices, which cannot be used according to The purpose of the pressure change in the drainage bottle to automatically adjust the pressure in the bottle lacks intelligent features. Whether it is a disposable negative pressure suction device or a reusable negative pressure suction device, it is necessary to...

AI Technical Summary

Problems solved by technology

Among them, the disposable negative pressure suction device has problems such as unstable negative pressure, non-adjustable pressure, and easy to cause reverse flow of the suction; reusable negative pressure suction devices generally use manual pressure adjustment devices, which cannot be used according to The purpose of the pressure change in the drainage bottle to automatically adjust the pressure in the bottle is lack of intellig

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