Water and gas delivery system of endoscope

Abstract

The invention provides a water and gas delivery system of an endoscope, and belongs to the technical field of endoscopes. The system solves the problem that air supply systems of existing endoscopes need to be switched manually. The system comprises a water gas cylinder, and a main gas pipe and a water pipe, one end of which are merged into a water gas pipe; the other end of the water pipe is inserted below the liquid level of the endoscope water gas cylinder; a branch gas tube is connected to the main gas pipe in a branch manner; the other end of the branch gas tube is communicated with the water gas cylinder; the other end of the main gas pipe is connected to an air pipe and a connecting pipe by a tee-junction; the other end of the air pipe is connected to an air pump; the other end of the connecting pipe is connected to a three-way electromagnetic valve; and an air inlet of the three-way electromagnetic valve is connected to a carbon dioxide pump. The system also comprises a controlmodule used for controlling the on and off of the three-way electromagnetic valve and a detection unit used for detecting the working state of the carbon dioxide pump; the detection unit is connectedto the control module; and the air pump is connected to the control module. The system effectively avoids the mixing use of carbon dioxide and air, simultaneously can realize intelligent switch, andeffectively reduces the workload of users.

Description

technical field [0001] The invention belongs to the technical field of endoscopes, and relates to an endoscope water-air delivery system, in particular to a water-air delivery system in which air and carbon dioxide can be intelligently switched. Background technique [0002] The electronic endoscope cold light source device not only provides the light source for the endoscope, but also provides air supply and water supply functions. Since carbon dioxide gas can effectively reduce the flatulence of patients using endoscopes, many qualified hospitals currently use carbon dioxide as the gas source, and the air pump is only used as a backup solution. At present, the carbon dioxide gas source is connected to the mirror body, and the carbon dioxide trachea needs to be reinserted after each operation for a patient, which increases the workload of the doctor. At the same time, the carbon dioxide gas source pipeline is installed on the mirror body, which increases the The complexity...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned air supply system, the high-pressure carbon dioxide gas storage cylinder is used first to supply air. When the pressure in the high-pressure carbon dioxide gas storage cylinder is less than a certain value, the air pump starts to work to ensure the smooth progress of the operation. First, the carbon dioxide is in contact with the human body. When the carbon dioxide is insufficient When in contact with the human body through the air, the comfort of the human body will be reduced, and flatulence is prone to occur; there is also the risk of mixing carbon dioxide and air, and the mixed gas greatly affects the effect of surgery and treatment

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