Conversion tube of medical injection device for preventing maloperation

Abstract

The invention discloses a conversion tube of a medical injection device for preventing maloperation. The conversion tube comprises a base tube and a sealing plate fixedly arranged at one end of the base tube; one side end of the sealing plate is provided with a first blocking part and a second blocking part, and the other side end of the sealing plate is provided with an inner pipe positioned in apipe cavity of the base pipe; the inner wall of the end, away from the sealing plate, of the inner pipe is provided with a longitudinal guide chute extending in the central line direction of the inner pipe. An elastic piece is arranged on the pipe wall of the inner pipe and comprises a protruding platform protruding toward the outer side of the inner pipe, and a positioning through hole running through the pipe wall of the inner pipe is also formed in the longitudinal guide chute. The conversion tube has the advantages that the conversion tube is applicable to the medical device which can prevent maloperation and is used for tympanic membrane puncture and intratympanic injections, and the functions of conversion between two channels, preventing maloperation and the like through cooperation with an external component are achieved.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a conversion tube of an injection medical device for preventing misoperation. Background technique [0002] The applicant previously applied for an anti-misuse tympanic membrane puncture and intratympanic injection medical device, which allows the user to aspirate the effusion before injecting drugs during the treatment process, effectively preventing misuse. However, there are also the following disadvantages: due to the limitation of structural design, this kind of injection medical device is used in the external pumping and internal injection type, and it is necessary to use its annular first piston to suck the effusion, and use it to be located at the center of the annular first piston. The second plunger injects medicine; in order to provide different usage modes and personal experience, the present application provides a conversion tube for an injectio...

AI Technical Summary

Problems solved by technology

However, there are also the following disadvantages: due to the limitation of structural design, this kind of injection medical device is used in the external pumping and internal injection type, and it is necessary to use its annular first piston to suck the effusion, and use it to be located at the center of the annular first piston. The second piston injects medicine; in order to provide different usage methods and personal experience, the application provides a conversion tube for an injection medical device for preventing misuse

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