A medical pump with an automatic disengagement mechanism

Abstract

The invention belongs to the field of a medical apparatus, and relates to an automatic stripping mechanism for a medical water knife. The automatic stripping mechanism comprises a screw nut mechanism and a clutch device. The automatic stripping mechanism is characterized in that a motor drives the nut to rotate through a synchronous belt; rotation of the nut is changed into linear movement of the screw through the screw nut mechanism; the front end of the screw drives a stripping push block and struts U-shaped elastic retainer rings of two clutch parts which are symmetrical at the left and right at the same time, so as to achieve separation of two groups of plunger pistons and clutch blocks; meanwhile, the stripping push rod contacts wedge blocks on upper and lower cassettes of the medical pump via a line; the tail end of the screw drives the stripping push rod to move in a straight line, so that the upper and lower cassettes of the medical pump are opened; and the medical pump and a cylinder body holder are separated, so as to finish automatic stripping of the medical pump.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an automatic disengagement device of a medical water jet pump. Background technique [0002] Industrial water jets are widely used, while medical water jets are relatively less researched and applied. At present, there are only a few foreign manufacturers engaged in the research and production of medical water jets such as ERBE, and domestic research on them is even less. Medical water jets are generally used to cut and separate soft tissues of the human body. The requirements for the sterility and purity of the water source are very high. Therefore, a new medical pump needs to be replaced every time an operation is completed. The replacement is frequent, but the pressure of the medical water jet is generally above 3MPa. , The medical pump holder has a large bearing capacity, and manual installation and disengagement are laborious and unsafe. Therefore, the re...

AI Technical Summary

Problems solved by technology

Medical water jets are generally used to cut and separate soft tissues of the human body. The requirements for the sterility and purity of the water source are very high. Therefore, a new medical pump needs to be replaced every time an operation is completed. The replacement is frequent, but the pressure of the medical water jet is generally above 3MPa. , the medical pump holder has a large bearing capacity, and manual installation and disengagement are laborious and unsafe. Therefore, the research on the automatic disengagement device of the medical water jet has important research value.

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