Adjustable needleless infusion connector

Abstract

The invention discloses an adjustable needleless infusion connector, and relates to the field of medical instruments, the adjustable needleless infusion connector comprises a positive end, an adjusting assembly is arranged in the positive end, an internal thread is arranged at the lower part in the positive end, a connector is connected to the top of the positive end, a negative end is connected to the top of the connector, and an external thread is connected to the upper part of the outer surface of the negative end. Through the sealing piece, the hollow rubber sleeve, the sealing plate, the elastic reset ring and the rubber connecting belt, when the negative end is connected into the connector, the sealing piece is stressed to deform towards the two sides so that liquid medicine can enter the connector, meanwhile, the two sides of the sealing piece extrude the hollow rubber sleeve and the elastic reset ring, and the elastic reset ring is similar to a spring in appearance; however, after being extruded, the elastic reset ring expands to increase the diameter of the structure to store force instead of being compressed to store force like a spring, meanwhile, the hollow rubber sleeve is arranged to avoid the contact phenomenon of liquid medicine and the elastic reset ring caused by liquid seepage on the two sides after the sealing piece is aged, and meanwhile, the metal structure does not make contact with the liquid medicine to delay the aging of the structure.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an adjustable needle-free infusion joint. Background technique [0002] Some patients need continuous injection of liquid medicine during treatment, so indwelling needles are usually left in their hands. In the past, medical staff usually used heparin caps as a sealing structure to avoid blood backflow when injecting patients. Due to various reasons, heparin caps are no longer popular. , but to use a more convenient needle-free infusion connector, which can effectively avoid the occurrence of needle-stick injuries during injection by using the needle-free infusion connector to continuously inject patients. The liquid medicine does not need to establish an additional channel to save costs and reduce the pain of patients, and it is extremely convenient to use. [0003] The existing needle-free infusion joints are usually sealed with springs and plugs to avoid blood backflow. Althoug...

AI Technical Summary

Problems solved by technology

[0004] Based on this, the purpose of the present invention is to provide an adjustable needle-free infusion connector to solve the technical problems of poor sealing effect, short service life and cumbersome operation when changing medicine bottles

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