Fixing device and method for detachable booster cavity of medical high-pressure pump

Abstract

The invention discloses a fixing device and method for a detachable pressurizing cavity of a medical high-pressure pump. The fixing device comprises a fixing base, an inserting plate and an elastic pressing mechanism. The fixing seat is provided with a positioning hole for fixing the peripheral surface of a piston tube of the pressurizing cavity; the inserting plate is movably installed on the fixing base and provided with a notch used for being clamped into a positioning clamping groove in the pressurizing cavity. The elastic pressing mechanism is arranged on the positioning end face of the pressurizing cavity and used for pressing the outer side face of the inserting plate through elastic force. The fixing firmness and reliability of the detachable booster cavity of the medical high-pressure pump can be improved, and the booster cavity can be safely and rapidly installed and fixed.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to a fixing device and method for a detachable booster chamber of a medical high-pressure pump. Background technique [0002] Due to the requirements of sanitation and disinfection, most of the main components of current medical equipment are disposable or convenient for disinfection. Therefore, it is necessary to design a connection and fixed structure. Among them, the medical high-pressure pump is a device that needs to use the booster chamber as a disposable part. It is necessary to consider solving the problem of failure of the connection caused by the vibration generated by this form of high-pressure pump during work, and at the same time it is necessary to take into account the user's use. The problem of firm connection and convenient and fast connection often leads to more complicated connection mechanism, which leads to higher costs of parts processing and ...

AI Technical Summary

Problems solved by technology

Among them, the medical high-pressure pump is a device that needs to use the pressurized chamber as a disposable part. It is necessary to consider solving the problem of failure of the connection caused by the vibration generated by this form of high-pressure pump during work, and at the same time it is necessary to take into account the user's use. The problems of firm connection, convenience and quickness often lead to more complex connection mechanisms, resulting in higher costs for parts processing and manufacturing, product assembly and subsequent maintenance

[0003] For example, the patent document with the notification number "CN206350761U" discloses a medical pump fixing device and a medical pump. For small parts, the operator has high requirements for assembly or maintenance

The patent document with the notification number "CN102770086B" discloses a disposable pumping system and a coupling, which is a self-locking circumferential inclined wedge mechanism that relies on mutual extrusion of metal materials to generate friction, and can stably fix the booster chamber. , but the vibration will make this self-locking mechanism relying on friction force invalid, so that during the working process of the plunger reciprocating pump, the vibration formed by the high-frequency axial reciprocating force on the pump body may cause the risk of the booster cavity falling off, resulting in There is a certain risk in equipment with high reciprocating frequency

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