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Passive homing type articulated puncture needle

A puncture needle and joint-type technology, applied in the field of medical devices, to achieve the effect of reducing iatrogenic injuries, avoiding iatrogenic injuries, and expanding the scope of application

Inactive Publication Date: 2012-06-20
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Research in this area is still in its infancy internationally, and it is still blank in China

Method used

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  • Passive homing type articulated puncture needle
  • Passive homing type articulated puncture needle
  • Passive homing type articulated puncture needle

Examples

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Embodiment Construction

[0018] Below in conjunction with the examples, the present invention is further described, the following examples are illustrative, not limiting, and the protection scope of the present invention cannot be limited by the following examples.

[0019] A passive navigation articulating puncture needle, comprising a head section 1 and a needle section 3. The front end of the head section is made with a wedge-shaped oblique tip, which can make the needle produce lateral navigation force during puncture to change the direction of the articulating needle. The section is installed coaxially at the rear of the head section.

[0020] The innovation point of the present invention is:

[0021] Both the head section and the needle section are made of stainless steel.

[0022] The head section is connected with the coaxially installed needle sections at the back by flexible joints 2, and the needle sections are also coaxially connected by flexible joints.

[0023] The flexible joint adopt...

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PUM

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Abstract

The invention relates to a passive homing type articulated puncture needle, which comprises a head section and needle sections. A wedged tip is formed at the front end of the head section, the needle sections are coaxially mounted at the back of the head section, the head section and the needle sections are made of stainless steel materials, the head section and the needle sections coaxially mounted at the back of the head section are connected by a flexible articulation, and the needle sections are also connected coaxially by flexible articulations. The flexible articulations are coils made of cobalt-chromium alloy by laser melting, two ends of each flexible articulation made of cobalt-chromium alloy are coaxially fixedly mounted with the needle sections and the head section in a jointing manner, the head section and the needle section can be bent, but flexibility of the head section and the needle sections is smaller than that of the flexible articulations. The passive homing type articulated puncture needle is capable of realizing accurately homing and controlling puncture path and position of the puncture needle when the puncture needle is used for non-straight puncture in thehuman body to reach the focus where the other types of puncture needles are hard to reach, so that the applicable range of minimally invasive surgery is expanded, Iatrogenic injury is reduced and patients are benefited.

Description

technical field [0001] The invention belongs to the field of medical equipment and relates to a puncture needle, in particular to a passive navigation joint type puncture needle. Background technique [0002] Clinically, different puncture needles are used for different minimally invasive surgical operations, such as bone marrow biopsy needles, lumbar puncture needles, INTERV puncture biopsy needles, Chiba needles, kidney puncture needles, liver biopsy needles, and Baguang percutaneous puncture Needle, Epidural Needle, Deep Venous Needle, Hematoma Crush Needle, Stimuplex Needle, Peritoneal Drainage Needle, Biliary Drainage Needle, INRAD Cyst Aspiration Needle, Thoracentesis Needle, Sternoiliac Needle, Ventriculocentesis Needles, cystostomy needles, maxillary sinus needles, DCHNS needles, ultrasound needles, etc., they are basically straight. When performing minimally invasive surgery using a puncture needle, in order to avoid iatrogenic injury, it is necessary to avoid impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B19/00A61B34/20
Inventor 黄华芳王以忠陈永华张锐李达刘成杰夏雷珍
Owner TIANJIN UNIV OF SCI & TECH
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