Epidural space pressure detection puncture needle

An epidural space and puncture needle technology, applied in the field of medical devices, can solve problems such as the lack of a puncture needle, the inaccurate judgment of needle tip positioning, and the easy mistake of the needle body into the subarachnoid space, so as to improve the puncture success rate and reduce the The effect of tissue damage and convenient operation

Inactive Publication Date: 2005-03-02
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] The existing epidural puncture needle includes a needle tube and a needle core. The front end of the needle tube has a spoon-shaped opening. The sign of whether the puncture is successful, there is difficulty in interpreting the bubble pulsation test, and the negative pressure cannot be detected synchronously and continuously during the puncture process, and the needle core must be pulled out repeatedly to test the negative pressure. Problems such as inaccurate positioning in the body affect the normal operation of anesthesia

Method used

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  • Epidural space pressure detection puncture needle
  • Epidural space pressure detection puncture needle
  • Epidural space pressure detection puncture needle

Examples

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Embodiment Construction

[0011] refer to figure 1 , the epidural pressure measuring puncture needle includes a needle tube 1, a needle core 2, and the front end of the needle tube is a spoon-shaped opening 3 (see figure 2 ), the front end of the needle core 2 has a round head 2-1 matching the spoon-shaped opening 3 at the front end of the needle tube, and the end has a handle 2-2 matching the mouth of the needle tube, the round head 2-1 and the handle 2-2 is located on the same side as the straight rod of needle core 2 (see image 3 As shown), the needle core 2 is placed in the needle tube, and the round head 2-1 at the front end and the handle 2-2 at the end are respectively in close contact with the spoon-shaped opening at the front end of the needle tube and the nozzle at the rear end, forming a cavity with the needle tube 4. A negative pressure outlet hole 5 and a side hole 6 communicating with the cavity 4 are respectively provided at the front and rear ends of the cavity of the needle tube. S...

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Abstract

The epidural space manometering puncture needle includes needle tube with spoon-shaped front opening and needle core, and features that the needle core has round head fitting the spoon-shaped front opening of the needle tube and handle matching with the needle tube in the end, that the needle core set inside the needle tube and the needle tube form one cavity, and that the needle tube has negative pressure leading out hole and side hole in its front end and back end separately. The puncture needle has simple structure and simple operation and makes it possible to realize dynamic observation during puncture for raised successful puncture rate and reduced damage.

Description

technical field [0001] The invention relates to an epidural space pressure measuring puncture needle used for puncturing, which belongs to a kind of medical equipment. Background technique [0002] The existing epidural puncture needle includes a needle tube and a needle core. The front end of the needle tube has a spoon-shaped opening. It is a sign of whether the puncture is successful, and it is difficult to interpret the bubble pulsation test. During the puncture process, the negative pressure cannot be detected synchronously and continuously. The needle core must be pulled out repeatedly to test the negative pressure. Problems such as inaccurate positioning in the body affect the normal operation of anesthesia. Contents of the invention [0003] The purpose of the present invention is to provide an epidural space pressure measuring puncture needle which is easy to operate and convenient for precise positioning. [0004] The epidural space pressure measuring puncture ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
Inventor 沈锷张爱珍
Owner ZHEJIANG UNIV
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