Flat pressing joint assembly

Abstract

The invention discloses a flat pressing connector assembly, which comprises a connector, a guide ring is arranged in one end of the connector and arranged at one end of a silica gel spring in a sleeving mode, the connector is inserted into the silica gel spring and connected with the interior of the other end of the connector, and the other end of the connector is connected with a long guide pipeconnecting base. An interface adopts a needleless design; the connector is of a balanced pressure structure, the constant pressure effect is achieved when the connector is disconnected after infusionis completed, and the catheter blockage risk caused by blood backflow is reduced; an independent and vertical liquid passage is arranged in the joint and is not in contact with the inner wall of the shell during infusion, so that pipe flushing is more thorough; due to the extremely small dead space volume (0.05 ml), liquid retention is reduced; after disconnection, the catheter in the connector issealed by the silica gel spring, bacteria are effectively isolated, infection is resisted, the connector is sealed in the disconnected state, and microorganisms cannot enter the cavity; the joint body is a transparent shell, so that infusion and pipe flushing conditions are easy to observe; metal is not contained, and X-ray inspection is not affected; the female end of the joint is smooth in surface and convenient to disinfect.

Description

technical field [0001] The invention relates to a medical device used for intravenous therapy, in particular to a flat compression joint assembly used in intravenous indwelling needles. Background technique [0002] At present, indwelling needles with heparin caps are generally used in the market. During the indwelling period, the heparin cap needs to be punctured for each infusion. Repeated punctures may cause the rubber to fall off and cause foreign matter to block the tube. During the infusion process, the scalp needle of the infusion set needs to be connected, increasing Occupational exposure opportunities such as needlestick injuries for nursing staff. At the same time, the heparin cap is a negative pressure connector. When the needle tip of the infusion set is disconnected from the heparin cap, the liquid and blood will flow back into the indwelling needle. Therefore, a specific tube sealing method is required to prevent the backflow, and the operation is complicated. ...

AI Technical Summary

Problems solved by technology

[0002] At present, indwelling needles with heparin caps are generally used in the market. During the indwelling period, the heparin cap needs to be punctured for each infusion. Repeated punctures may cause the rubber to fall off and cause foreign matter to block the tube. During the infusion process, the scalp needle of the infusion set needs to be connected, increasing Occupational Exposure Opportunities for Nurses by Needle-Stick Injuries

At the same time, the heparin cap is a negative pressure connector. When the needle tip of the infusion set is disconnected from the heparin cap, the liquid and blood will flow back into the indwelling needle. Therefore, a specific sealing method is required to prevent the backflow, and the operation is complicated.

[0003] The other type used on the market is the positive pressure joint indwelling needle. The joint part is mostly opaque, and the internal conditions of the joint cannot be observed. During the flushing process, it is impossible to directly confirm whether the liquid medicine and blood are washed clean, and infection is more likely to occur; the interior uses a spring Mechanical structure, prone to failure, resulting in short dwell time; also, contains metal inside, which interferes with X-ray inspection

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