Safety venous indwelling needle

Abstract

The invention discloses a safety venous indwelling needle which comprises a catheter component, a needle tube component and an infusion joint, wherein a needling prevention protection component is arranged between a catheter seat and a needle seat and comprises a protection seat with a hollow structure; at least one movable body is arranged in the inner hollow part of the protection seat; a through hole for enabling a needle tube to pass through is formed in the movable body; the maximum inner diameter of the inner hollow part of the protection seat is larger than the maximum outer diameter of the movable body, so that the axis of the needle tube is not superposed with the axis of the through hole after the needle tube is separated from the through hole of the movable body. The safety venous indwelling needle has the main beneficial effects that the needling prevention protection component of the safety venous indwelling needle is ingenious in originality and simple in structure and can effectively prevent needling injury, disease infection, environment pollution and the like; meanwhile, the venous indwelling needle disclosed by the invention can be retreated by lower tension, is more convenient and more reliable and has a very good popularization prospect.

Description

technical field [0001] The invention belongs to the field of infusion equipment, in particular to a safe intravenous indwelling needle with anti-acupuncture effect. Background technique [0002] The use of intravenous indwelling needles can reduce the pain caused by repeated venipuncture and the fear of injections, reduce the anxiety of family members, facilitate clinical medication, rescue medication for acute and critical patients, reduce the workload of nurses, and reduce the pain of patients Therefore, intravenous indwelling needles are widely used in clinical practice. [0003] The existing venous indwelling needle is retracted after use, and the needle is contaminated by the blood of the patient. When the medical staff pulls out or cleans and discards the indwelling needle, it is easy to be stabbed by the needle and easily infected with the disease. At the same time, the discarded needle is exposed in the environment. It is easy to cause environmental pollution and ha...

AI Technical Summary

Problems solved by technology

However, the anti-needle protection assembly in the prior art has a common problem: because the needle tube is always pressed by the elastic steel sheet in the protective seat during the process of being pulled out and has a tendency to be bent, causing the needle tube to be in contact with the protective seat. The friction between them is very large, so the medical staff need to use a lot of force when pulling out the needle tube, which is extremely inconvenient to operate. What's more, the catheter that is already in the vein is also pulled out due to excessive force, resulting in unnecessary medical malpractice

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