Multifunctional micro-wound puncture needle

Abstract

The invention relates to a multi-functional minimally invasive puncture needle which comprises a needle bar (1), a needle point (2) arranged in the front of the puncture needle, a needle-bar holding component (11), a stylet (5) inserted into a flow guide cavity (10) on the needle bar (1), a scale (3) indicating a puncturing depth and a needle-bar positioning and holding component (4); at least one flow guide hole is arranged on a side wall in front of the needle bar (1); and the pointed end of the needle point (2) is a scraper-knife-shaped end. The multi-functional l minimally invasive puncture needle solves the problems that products produced by the prior art have simple function, low strength, suppleness in puncturing, low operational accuracy and poor safe reliability. The multi-functional l minimally invasive puncture needle has multiple functions of puncturing, injecting or transferring medical liquid or air, pumping accumulated liquid, eradicating lesion tissue and the like, and is mainly used for therapy of puncture to patients by medical personnel, and the like.

Description

technical field [0001] The invention relates to a medical device, in particular to a multifunctional minimally invasive puncture needle used for human body puncture and treatment. Background technique [0002] At present, the puncture needles used for human body puncture are all composed of a needle shaft and a needle point at its front end. The needle shaft adopts a solid structure, and the needle point is a round needle point. Treatment of the human body with liquid or gas, the function is relatively single, and the depth control of the penetration into the human body is not accurate, and it is inconvenient to use; after that, the medical staff used the long needle of the syringe as the puncture needle, and some used a needle similar to the one on the syringe. The puncture needle with a long needle, its needle shaft is also hollow, and its hollow cavity passes through the needle tip, and passes through the center of the front end of the needle tip to form a central diversi...

AI Technical Summary

Problems solved by technology

[0002] At present, the puncture needles used for human body puncture are all composed of a needle shaft and a needle point at its front end. The needle shaft adopts a solid structure, and the needle point is a round needle point. Treatment of the human body with liquid or gas, the function is relatively single, and the depth control of the penetration into the human body is not accurate, and it is inconvenient to use; after that, the medical staff used the long needle of the syringe as the puncture needle, and some used a needle similar to the one on the syringe. The puncture needle with a long needle, its needle shaft is also hollow, and its hollow cavity passes through the needle tip, and passes through the center of the front end of the needle tip to form a central diversion hole. The needle tip is the same as the syringe needle tip Pointed tip, it can deliver liquid medicine, but because its central diversion hole is located at the center of the front end of the needle tip, it is prone to the phenomenon of human tissue blocking the center diversion hole, which affects the normal input of liquid medicine or gas into the focus of the human body

This kind of puncture needle can only be used for puncturing and transporting liquid medicine, and its function is relatively limited, and when its length is longer, the strength of the hollow needle is low, and it is easy to cause the needle shaft to bend. In addition, the depth of the needle shaft piercing into the human body Difficult to control accurately and inconvenient to use

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