Medical puncture needle

Abstract

The invention discloses a medical puncture needle, and relates to the technical field of medical treatment. The medical puncture needle comprises a handle, a fixing block, a connecting part, a limiting part, a first sleeve, a second sleeve and a syringe needle. The rear end is connected with a hard flow guide pipe; the second sleeve sleeves the front part of the syringe needle; the rear end of thesyringe needle extends into the first sleeve; a sliding hole is formed in the center of the connecting part and the limiting part; the first sleeve is slidably connected with the sliding hole; the rear end of the hard flow guide pipe penetrates through the rear end of the first sleeve and penetrates through the fixing block and the rear end surface of the handle; the hard flow guide pipe is fixedly connected with the fixing block and the handle; a compression spring is arranged between the fixing block and the first sleeve; and a limiting component is further arranged on the limiting part. The medical puncture needle is simple in structure and convenient to use, and the sharp spine part can be easily shielded by the second sleeve while puncture is conducted; and meanwhile, by arranging the movable second sleeve, puncture positioning can be facilitated, the puncture process is delayed, the controllable feeling of an operator is improved, and puncture errors are greatly reduced.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a medical puncture needle. Background technique [0002] Clinically, puncture needles are often used in infusion, blood drawing, and drainage. Usually, after the puncture needle is inserted, the sharp part of the needle can easily puncture other tissues and organs, resulting in medical accidents. Small medical accidents can be resolved by re-puncture. However, larger medical accidents are prone to danger. [0003] In the existing patent literature, there is a scheme of setting a sleeve on the sharp part of the needle, and covering the needle with the sleeve after the puncture, so as to avoid being stabbed by the sharp part. However, most of these schemes have complex structures and are not practical. Not widely used. [0004] In addition, during the puncturing process, because the sharp part of the needle is very sharp, it is easy to pierce the blood vessel or get out of the p...

AI Technical Summary

Problems solved by technology

[0002] Clinically, puncture needles are often used in infusion, blood drawing, and drainage. Usually, after the puncture needle is inserted, the sharp part of the needle can easily puncture other tissues and organs, resulting in medical accidents. Small medical accidents can be resolved by re-puncture. solution, larger medical accidents are prone to danger

[0003] In the existing patent literature, there is a scheme of setting a sleeve on the sharp part of the needle, and covering the needle with the sleeve after the puncture, so as to avoid being stabbed by the sharp part. However, most of these schemes h

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