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Safe combined spinal-epidural puncture needle

A lumbar-hard combination and puncture needle technology, which is applied in the direction of puncture needles, puncture needles, trocars, etc., can solve the problems of spinal cord injury and easy puncture of dura mater

Inactive Publication Date: 2015-04-29
王家松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different sensory sensitivity and reaction coordination speed of each person, when the epidural space is felt or found, the puncture may still be advancing, and it is easy to penetrate the dura mater and even damage the spinal cord, leading to serious consequences

Method used

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  • Safe combined spinal-epidural puncture needle
  • Safe combined spinal-epidural puncture needle
  • Safe combined spinal-epidural puncture needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] After the preparations are done, take the epidural puncture needle of this safe lumbar-hard joint puncture needle, make the negative pressure display device upward, perform the normal puncture operation, and the needle core will retract into the puncture needle when encountering resistance. In the extramural cavity, the resistance decreases or disappears, the elastic forward device in the back seat pushes the core forward, and the safety device pushes the dura mater forward to prevent the puncture needle from piercing the dura mater. At the same time, the negative pressure display The device moves forward, and the safety mark is exposed, indicating that the puncture needle has reached the epidural space. At this time, the forward puncture must be stopped, and the epidural negative pressure can be tested again by connecting the syringe through the injection hole of the needle core to achieve the double negative pressure test effect. , And can see whether there is blood, ...

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Abstract

A safe combined puncture epidural anesthesia puncture needle is mainly composed of an epidural puncture needle, an epidural puncture needle core, a lumbar puncture needle and a lumbar puncture needle core. The arc-shaped crook of the epidural puncture needle is provided with a lumbar puncture dorsal pore. The epidural puncture needle core is composed of a safety protection device at the front part, a negative pressure conduction device in the middle, a negative pressure display device at the rear part, an elastic forward device at the tail part and a needle core base, and an epidural puncture needle core is connected with an lumbar puncture needle rear base in a detachable fixing manner. Apart from achieving the purpose of identifying the epidural space doubly, the puncture needle can avoid the needle point of the epidural puncture needle and the epidural conduit entering the subarachnoid space by the needle hole of the lumbar puncture needle, the lumbar puncture needle is prevented from being broken, and the lumbar puncture needle is conveniently fixed in the epidural puncture needle.

Description

technical field [0001] The invention relates to a safety lumbar-hard joint puncture needle. Background technique [0002] At present, when epidural puncture is performed, it is judged that the needle tip of the epidural puncture needle has reached the epidural space mostly by the sense of falling when the anesthetist operates. Then attach a smooth syringe to verify that the needle tip is indeed in the epidural space. There are also various liquid or balloon devices to judge whether the epidural puncture needle reaches the epidural space. Since everyone has different hand sensitivity and response coordination speed, when the epidural space is felt or found, the puncture may still be advancing, and it is easy to penetrate the dura mater and even damage the spinal cord, leading to serious consequences. [0003] Currently, there are two types of spinal-epidural puncture needles commonly used clinically, namely the products of BD Company of the United States, the products of Br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61M19/00
CPCA61B17/3401A61B17/3494A61B2017/3456A61B2017/347A61M19/00
Inventor 王家松
Owner 王家松
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