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Tool for maintaining needling point of sacroiliac screw guide needle and regulating direction

A technology of direction adjustment and needle entry point, applied in bone drill guidance, medical science, surgery, etc., can solve the problems of lack of instruments and tools, maintenance of guide needle entry point and adjustment of guide needle direction, and easy installation and disassembly. , good clinical application, beneficial to the effect of operation

Active Publication Date: 2015-06-17
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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  • Tool for maintaining needling point of sacroiliac screw guide needle and regulating direction
  • Tool for maintaining needling point of sacroiliac screw guide needle and regulating direction
  • Tool for maintaining needling point of sacroiliac screw guide needle and regulating direction

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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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PUM

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Abstract

The invention discloses a tool for maintaining a needling point of a sacroiliac screw guide needle and regulating direction. The tool comprises a grinding drill, a sleeve, a sleeve fixer and a diamond point bit, wherein a working surface of a drill bit at the lower end of a grinding drill rod is an arc surface; the diamond point bit is inserted into a guide needle passage in the center of the grinding drill; a fixing wing clamp arranged on the drill rod of the grinding drill is locked into a locking slot in the drill rod of the grinding drill; the drill tip extends out of the drill bit of the grinding drill; the sleeve consists of two semicircular cylinders; the upper end of the sleeve is connected to the lower end of the sleeve fixer by screw threads; the center of the sleeve fixer is provided with a pipe cavity through which the drill rod of the grinding drill can pass; a fixing bolt is arranged on the wall of the pipe cavity and is used for fixing the sleeve on the drill rod of the grinding drill. The tool disclosed by the invention integrates the functions of maintaining the needling point of the screw guide needle and regulating the direction of the guide needle; a power drill is used for driving the grinding drill and the diamond point bit to rotate; an arc-surface opening is drilled in an iliac bone outer plate, and then the sleeve fixer, the sleeve and the diamond point bit are taken down; the directions of the drill rod of the grinding drill and the guide needle passage are regulated by motion of the drill bit of the grinding drill in the arc-surface 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 Applications(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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