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Bone screw and percutaneous minimally invasive pedicle fixation system

一种骨钉、固定座的技术，应用在固定器、内固定器、内部骨合成等方向，能够解决校准组件复杂、具有较大宽度或长度的伤口、不便利等问题

Active Publication Date: 2016-11-23
BAUI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing bone screw fixation systems require a separate alignment assembly to align the bone screw when the bone screw is inserted into the bone, which is complex and / or has multiple components, thus causing inconvenience and even intraoperative Wounds that require a greater width or length

Method used

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  • Bone screw and percutaneous minimally invasive pedicle fixation system
  • Bone screw and percutaneous minimally invasive pedicle fixation system
  • Bone screw and percutaneous minimally invasive pedicle fixation system

Examples

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Embodiment Construction

[0053] The present invention will be described below in conjunction with the drawings. It should be understood that those skilled in the art can also conceive and complete other embodiments without departing from the scope or spirit of the present invention. The following preferred embodiments are only used to describe the present invention, but not to limit the present invention.

[0054] Such as Figure 1 to 3 As shown, the bone nail includes a positioning sleeve 200 and a bone nail body 100. The bone nail body 100 includes a screw 120 and a spherical head 110; the bone nail body 100 can be rotatably connected to a bottom of the positioning sleeve 200 through a calibration sleeve 220 section. The spherical head 110 has an outer diameter larger than the outer diameter of the screw 120. The positioning sleeve 200 includes a fixing seat 210, a calibration sleeve 220, and a bone nail body channel 250 formed through the positioning sleeve. The fixing seat 210 and the calibration sl...

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PUM

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Abstract

The percutaneous minimally invasive pedicle fixation system herein comprises a bone screw and a hook-rod, wherein the bone screw includes a positioning casing and a screw body. The positioning casing comprises securing base, an alignment casing and a screw body passage. The securing base includes a through hole at the bottom and two openings arranged opposite to each other in the wall. The alignment casing has a wall portion and a volume reduce portion, wherein the wall portion is configured with an elongate opening and the volume reduced portion is a portion with part of the wall removed to recede from the outer surface of the securing base and a guide opening formed in the volume reduced portion. The positioning casing further includes a first easy breaking portion between the alignment casing and the securing base so that the alignment casing can be removed from the positioning casing.

Description

Technical field [0001] The invention relates to a bone nail and a percutaneous minimally invasive pedicle fixation system, in particular to a bone nail fixation system suitable for percutaneous minimally invasive spinal treatment. Background technique [0002] The minimally invasive surgery of the fixation system is used to treat the vertebrae. Due to the small wound, this type of surgery can greatly reduce the damage to the treated part and the nearby tissues, improve the safety of the operation, and reduce the healing and recovery time. In order to accurately locate and calibrate the fixation system, the bone nail of the fixation system is typically provided with a positioning sleeve. Therefore, the bone nail of the fixation system can be positioned and calibrated from outside the human body during an operation. [0003] The existing bone nail fixation system requires a separate calibration component to calibrate the bone nail when the bone nail is inserted into the bone. The sep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/86A61B17/70
CPCA61B17/00234A61B17/7074A61B17/7076A61B17/8615A61B17/862A61B17/8625A61B17/8635A61B2017/00238A61B2017/564A61B17/7037A61B17/7047A61B17/7056A61B17/7085A61B2090/037A61B17/685A61B17/7067A61B2017/681
Inventor 曾峰毅陈加宪江长蓉郭宜洁
Owner BAUI BIOTECH
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