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Perforating awl for locking cage

A fusion device and cone technology, applied in medical science, prosthesis, joint implants, etc., can solve the problems of not automatically aligning the center, easy drilling deviation, etc., to increase the service life, facilitate operation, and prevent damage Effect

Pending Publication Date: 2019-07-26
CHUANGHUI MEDICAL EQUIP JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that the opening cone of the locking fusion device will not automatically align with the center and is easy to drill off in the prior art, the present invention proposes a locking fusion fusion opening cone, which solves the above technical problems

Method used

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  • Perforating awl for locking cage
  • Perforating awl for locking cage
  • Perforating awl for locking cage

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Embodiment Construction

[0024] The content of the present invention will be further described below in conjunction with the accompanying drawings. In describing the present invention, it is to be understood that the terms "radial", "axial", "upper", "lower", "top", "bottom", "inner", "outer" etc. indicate orientation Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "s...

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Abstract

The invention relates to the field of medical apparatuses and instruments, in particular to a perforating awl for a locking cage. The perforating awl comprises an awl body, the head of the awl body isprovided with a blade, a sleeve sleeves the awl body, the head of the awl body is capable of axially telescoping relative to the sleeve, the front end of the sleeve is capable of extending into a screw hole of the cage, at least part of the outer surface of the front end of the sleeve fits the at least part of the inner wall of the screw hole, and in a fitting state, the axis of the sleeve and the axis of the screw hole are collinear. By arrangement of the sleeve which sleeves the awl body, the front end of the sleeve fits the inner wall of the screw hole in the cage, and the axis of the sleeve and the axis of the screw hole are collinear in the fitting state, so that when the awl body extends out of the sleeve, namely extending out along the axis of the screw hole, automatic centering can be realized, and less proneness to deviation is realized. The technical problem of proneness to deviation due to failure in automatic centering of a perforating awl for a locking cage in the prior art is solved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an opening cone for a locking fusion device. Background technique [0002] Degenerative diseases of the spine and its structural damage are an important cause of neck, shoulder, waist, and leg pain, sensory and motor function impairment or even loss. In the 1950s, Cloward first proposed Posterior Lumbar Fusion (PLIF), which has developed into one of the basic procedures of spinal surgery today. In 1986, Badgy and Kuslich designed an intervertebral fusion device (Cage) suitable for the human body, namely the BAK (Bagby and Kuslich) system. Since then, intervertebral bone graft fusion technology has been greatly developed and has become a basic surgical method for the treatment of spinal degenerative diseases and structural injuries. The design principle of the intervertebral cage (Cage) is based on the distraction-compression stabilization effect proposed by Bagby. The princi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46A61F2/44
CPCA61F2/4611A61F2/4644A61F2/4455A61F2/30749
Inventor 曹佳振徐文利
Owner CHUANGHUI MEDICAL EQUIP JIANGSU
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