Air-water supply system for endoscope and endoscope

Abstract

The invention provides an air-water supply system of an endoscope and the endoscope. In the air-water supply system, a pressure sensor, an air pump and a one-way valve are arranged on the air supply pipeline. The pressure sensor and the one-way valve cooperate with each other to avoid the situation that the gas pressure is too large, resulting in the liquid pressure being greater than the safety threshold of the human body and affecting the smooth progress of the operation, so as to effectively ensure the safety of the endoscopic operation. The pressure sensor works together with the controller and the air pump to timely adjust the gas pressure to be greater than the internal pressure of the human body and less than the safe pressure threshold of the human body, so as to ensure that the liquid in the liquid supply pipeline can enter the human body smoothly without causing harm to the human body . The one-way valve cooperates with the pressure sensor. When the gas pressure in the gas supply pipeline is too high and the pressure sensor loses its control function, the internal structure of the one-way valve will cut off the gas supply pipeline to prevent the liquid with excessive pressure from entering the human body. Inside, effectively ensure the safety of endoscopic surgery.

Description

Technical field [0001] The present invention relates to the field of medical devices, and more particularly to an air supply system and endoscope of an endoscope. Background technique [0002] The endoscope device provides an internal image of an organ or body cavity that needs to be treated to a surgeon. The endoscope device typically has an instrument working channel such that flexible instruments such as biopsy clamps are inserted or entered through the channel. One end of the endoscope has an imaging device, and the cable transmits the image signal from the illuminated area to the in vitro visualization device, and controls the movement of the instrument work end by the surgeon. The endoscope apparatus also has an air supply supply system for flushing, purge, cleaning, etc. to provide sterile water or sterile gas flow through an optical lens, a treatment of organ or body cavity surface. [0003] When the endoscope needs to exercise the flushing function, the water flow of the...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that in the prior art endoscope, the pressure sensor in the air-water supply system has the risk of failure, which leads to the safety risk of the endoscopic operation and affects the smooth progress of the operation

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