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Cannula guiding device for cervical spinous process longitudinal cutting type canalis vertebralis enlargement and plasty

A technology of introducer and spinous process, applied in the field of cannula guide, can solve the problems of high risk of spinal cord injury, and achieve the effect of reducing the risk of spinal cord injury, reducing extrusion and reducing compression

Pending Publication Date: 2021-05-11
BEIJING JISHUITAN HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cannula guide for cervical spinous process vertical cutting type laminoplasty to alleviate the technical problem of high risk of spinal cord injury in the prior art

Method used

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  • Cannula guiding device for cervical spinous process longitudinal cutting type canalis vertebralis enlargement and plasty
  • Cannula guiding device for cervical spinous process longitudinal cutting type canalis vertebralis enlargement and plasty
  • Cannula guiding device for cervical spinous process longitudinal cutting type canalis vertebralis enlargement and plasty

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Embodiment Construction

[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenienc...

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Abstract

The invention provides a cannula guiding device for cervical spinous process longitudinal cutting type canalis vertebralis enlargement and plasty, and relates to the technical field of medical instruments. The cannula guiding device for the cervical spinous process longitudinal cutting type canalis vertebralis enlargement and plasty comprises a guiding tube used for guiding a cannula, wherein one end of the guide tube is an inlet allowing the sleeve to be inserted, and the other end of the guide tube is an extension opening allowing the sleeve to extend out. The technical effect of reducing the spinal cord injury risk is achieved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a cannula guide used for cervical spinous process longitudinal cutting type laminoplasty. Background technique [0002] Cervical spinous process vertical cutting type spinal canal enlargement and coral artificial bone bridge implantation (SLAC) is one of the operations for the treatment of cervical spinal stenosis. During the operation, the entire lamina of C3 and the upper part of the lamina of C7 need to be resected, and then a cannula with a diameter of about 1.2 mm should be inserted under the lamina of C4-C6 and on the back side of the dura mater, and then a metal wire saw should be inserted into the Cannula, take out the cannula, saw the spinous process longitudinally with a jigsaw, grind out the side grooves, open the lamina to both sides, expand the volume of the spinal canal, and then use coral artificial bone as a bone bridge to support and open the lamina ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B90/00A61B17/56
CPCA61B17/3415A61B2017/564A61B90/08A61B2090/08021
Inventor 郑山田伟
Owner BEIJING JISHUITAN HOSPITAL
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