Plug-in check valve for medical endoscope

Abstract

The invention discloses a plug-in check valve for a medical endoscope. The plug-in check valve for the medical endoscope comprises a delivery pipe plug, a unidirectional axial flow sealing piece and a screw socket, wherein the unidirectional axial flow sealing piece is arranged between the delivery pipe plug and the screw socket; a plugging buckling package structure is adopted between the delivery pipe plug and the screw socket; the package efficiency is high; the plug-in check valve can be used as soon as being installed. A metal nut is fixedly embedded into the inner hole at a connecting end, and the center of the metal nut is overlapped with the center of the inner hole of a plug pipe of a delivery pipe, so that a connecting pipe of the screw socket cannot be cracked by excessive tightening force after the connecting end of an endoscope body pipe and the metal nut are screwed, the using reliability and safety of medical endoscope equipment are improved, and the disadvantages in the prior art can be well overcome.

Description

technical field [0001] The invention relates to a medical endoscopic device, in particular to a check valve on the medical endoscopic device. Background technique [0002] With the continuous innovation and development of medical technology, various endoscopic devices for diagnosing human organs are increasing. Now endoscopic devices such as gastroscopes and colonoscopes have been widely used in the diagnosis or surgery of people's stomach, intestines and other internal organ diseases. Doctors can use endoscopic equipment to perform intuitive, accurate, fast, efficient, and low-pain diagnosis and treatment for patients, but this type of equipment is very expensive, and the conditions for use and maintenance are harsh. Regardless of electronic endoscope or fiber endoscope, The outside of the mirror body is covered with a synthetic resin protective layer, forming an airtight environment that isolates the inside from the outside world. Taking the digestive tract endoscope as a...

AI Technical Summary

Problems solved by technology

[0003] Although the check valve is an accessory on the endoscope equipment, its function is very important. It is a key part connecting the probe body and the endoscope. It must have a one-way check function. Once it fails and leaks, it will Affect the normal use of the equipment, and seriously cause damage to the entire equipment, directly affecting the reliability and service life of the equipment

Existing check valve is integral structure, and it is made up of connector plug, unidirectional axial flow seal and rotary socket, and unidirectional axial flow seal is arranged between connector plug and rotary socket, and connector plug and rotary socket Glue bonding and curing packaging technology is used between them, the packaging efficiency is low, the waiting period for curing and bonding is long, and it is inconvenient for medical personnel to use. During use, the plug is connected to the main body of the endoscope, and the screw socket and the probe mirror body pipe are threaded It is connected by screw connection. In actual operation, the probe mirror body fittings need to be pulled out from the body first, and then the check valve will be removed once to separate the probe mirror body fittings from the main body of the endoscope.

The distance between the probe mirror body pipe fitting and the endoscope main body is fixed. On the one hand, the pressure force of the probe mirror body pipe fitting on the entrance of the human body increases during the pulling process, which increases the pain of the patient. The internal thread on the rotary socket of the return valve is easy to crack due to the bending and pressure of the probe mirror body, which will cause the overflow of human body fluid and increase the infection rate of medical staff

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