Remote puncture needle with replaceable and reusable rod connecting hole

Abstract

The invention discloses a remote puncture needle with a replaceable and reusable rod connecting hole, and belongs to the technical field of medical instruments, the remote puncture needle with the replaceable and reusable rod connecting hole comprises a needle cylinder, and is characterized in that a fixing jacket is fixedly connected to the position, corresponding to a through hole, of the end of the needle cylinder. According to the invention, through mutual cooperation of designed structures such as a second magnetic buckle, a first clamping seat, a second clamping seat, a hinge, a movable clamping sleeve, a fixed clamping sleeve, a first supporting spring, a concave connecting groove, a reinforcing shaft, a telescopic groove, a second supporting spring, a conductor, a magnetic ring and an electromagnet, the practicability is high, and on the basis of the stability of threaded connection, the syringe needle has the plug-in type sealing performance, and medical staff can control the speed of pushing or pulling the piston according to the strength of resistance in the process that the piston is driven to move through the piston rod, and the flow speed of liquid in the syringe needle can be quantitatively and qualitatively controlled.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to a remote puncture needle with a connecting hole for a replaceable and reusable rod. Background technique [0002] The puncture needle is a medical device for sampling and injecting tissue from various organs such as the kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, and body surface during minimally invasive surgery. [0003] The puncture needle is a medical device for tissue sampling and injection treatment of organs. It is manually injected into the body to reach the designated part of the body for sampling or injection. Based on the above, at present, the puncture needle used is manually injected, and the sampling and injection speeds are both It is decided by the operator, and it cannot be avoided that some inexperienced nurses or doctors are too fast or too slow to affect the puncture effect, and in order to reduce medical costs,...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that currently, the puncture needles used are manually injected, and the sampling and injection speeds are all determined by the operators, which cannot prevent some inexperienced nurses or doctors from being too fast or too fast when extracting effusions. Slowly affect the puncture effect, and in order to reduce medical costs, many puncture needles that can replace the needle head have been designed. At present, there are mainly two connection methods for the needle head. One is the plug-in connection method, which has good sealing performance but poor stability. The other is the way of threaded connection, which has good stability but poor sealing performance, and the needle needs to be rotated continuously through threaded connection. Due to the low hardness of the needle, it is used to deform the needle, and the proposed one has replaceable and repeatable Use the stem to connect the hole to the remote puncture needle

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