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A tool for maintaining the needle entry point and adjusting the direction of the sacroiliac screw guide needle

A technology of direction adjustment and needle insertion point, which is applied in bone drill guidance, medical science, surgery, etc., can solve the problems of lack of instruments and tools, maintenance of guide needle insertion point and adjustment of guide needle direction, and achieve easy installation and disassembly , good clinical application, high precision effect

Active Publication Date: 2016-09-28
蔡鸿敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the operation of percutaneous sacroiliac screw insertion under fluoroscopy is a simple manual operation, and there is no dedicated instrument tool to maintain the needle insertion point and adjust the direction of the guide needle

Method used

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  • A tool for maintaining the needle entry point and adjusting the direction of the sacroiliac screw guide needle
  • A tool for maintaining the needle entry point and adjusting the direction of the sacroiliac screw guide needle
  • A tool for maintaining the needle entry point and adjusting the direction of the sacroiliac screw guide needle

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Experimental program
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Effect test

Embodiment Construction

[0021] The present invention will be further described through specific embodiments below in conjunction with the accompanying drawings.

[0022] As shown in the figure, a needle insertion point maintenance and direction adjustment tool for a sacroiliac screw guide needle includes a drill 1, a sleeve 2, a sleeve holder 3 and a pointed drill 4, and the lower end of the drill 1 is set Expanded drill bit 101, the drill bit is a hemispherical head, and its working surface is hemispherical. On the side wall of the upper end of the drill rod of the drill 1, two opposite U-shaped slots 102 are arranged, and at the center of the drill 1 along its length direction A guide pin channel 103 for sacroiliac screws is provided. After the pointed drill 4 is inserted in the guide pin channel 103, the drill tip 401 at its lower end extends from the outlet of the guide pin channel 103 at the end of the drill bit 101. At the same time, the fixed wing 402 provided on the upper end of the pointed d...

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Abstract

A needle point maintenance and direction adjustment tool for a sacroiliac screw guide needle, comprising a drill, a sleeve, a sleeve holder and a pointed drill, the working surface of the drill bit at the lower end of the drill rod is an arc surface, the The pointed drill is inserted in the guide pin channel of the drill center, and the fixed wing provided on the drill rod is stuck in the slot on the drill rod, and the drill point protrudes from the drill bit, and the sleeve is formed by Composed of two semi-cylinders, the upper end of the sleeve is connected to the lower end of the sleeve holder through threads, and the center of the sleeve holder is provided with a lumen for the drill rod to pass through, and a fixing bolt is provided on the lumen wall. Bolts secure the sleeve to the mill drill rod. The invention integrates the maintenance of the screw guide needle entry point and the adjustment of the guide needle direction. The power drill drives the grinding drill and the pointed drill to rotate. After the arc surface opening is drilled on the outer plate of the ilium, the sleeve holder is removed. , sleeve and pointed drill, and adjust the direction of the drill rod and the guide pin channel through the movement of the drill bit in the arc opening.

Description

technical field [0001] The invention belongs to the field of minimally invasive surgery for pelvic injuries in trauma orthopedics, and in particular relates to a tool for maintaining and adjusting the direction of a sacroiliac screw guide needle during the process of percutaneously inserting a sacroiliac screw guide needle. Background technique [0002] Unstable posterior pelvic ring injuries often require surgical treatment to restore the anatomical relationship of the posterior ring and rebuild the stability of the posterior ring to facilitate early sitting up, getting out of bed, functional exercise and recovery. Percutaneous sacroiliac screw placement under the guidance of C-arm X-ray fluoroscopy monitoring has become a popular choice for its advantages of less trauma, less bleeding, lower incidence of complications (such as infection, etc.), faster recovery of patients, and less economic burden. The current treatment of choice for such injuries. [0003] Percutaneous s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/90A61B17/17
CPCA61B17/1615A61B17/1662A61B17/1739A61B17/88A61B17/90
Inventor 蔡鸿敏刘又文李红军成传德汤金城吴学建蔡继武李林林
Owner 蔡鸿敏
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