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Posterior lumbar surgery distraction device

A technique for posterior surgery and lumbar spine, which is applied in the field of medical devices and can solve problems such as difficulty in accurately controlling the extent of opening

Active Publication Date: 2019-03-08
THE SECOND AFFILIATED HOSPITAL TO NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it is difficult for the medical staff to accurately control the extent of stretching when stretching the cone

Method used

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  • Posterior lumbar surgery distraction device
  • Posterior lumbar surgery distraction device
  • Posterior lumbar surgery distraction device

Examples

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0036] This embodiment exemplarily discloses a distraction device for posterior lumbar surgery; the device in this embodiment can stably and accurately distract the cone during posterior lumbar intervertebral fusion.

[0037] In order to achieve the above, please refer to figure 1 and figure 2 The device of this embodiment includes a track assembly 100 , a first spreadi...

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PUM

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Abstract

The invention discloses a posterior lumbar surgery distraction device, which is used for a posterior lumbar surgery. The device comprises a track component, which is provided with a back plate, a rackand a slide rail in a length direction, wherein the rack and the slide rail are fixed with the back plate; a first distraction arm, which comprises a gear meshed with the rack and a transverse movingpart rotationally connected with the gear, wherein the gear is coaxially fixed with a manual wheel, and the transverse moving part is fixed with a first supporting rod and a sliding block which slides in the slide rail; and a second distraction arm, which is provided with a fixing block, wherein the fixing block is fixed with one end of a cross rod, and the fixing block is provided with a secondsupporting rod which is parallel to the first supporting rod. The posterior lumbar surgery distraction device can stably and accurately distract a vertebral joint and provide a stable operation spacefor medical personnel.

Description

technical field [0001] The invention relates to the field of medical equipment; in particular, it relates to a distraction device for posterior lumbar surgery. Background technique [0002] Posterior Lumbar Interbody Fusion, an orthopedic spinal fusion surgery. [0003] During the operation, the medical staff need to use the posterior lumbar retractor to expand the cone, so as to provide the surgical space for the medical staff. [0004] But the existing lumbar posterior retractor is a kind of operation tool similar to tweezers. When medical personnel use traditional lumbar posterior retractors, they need to continuously apply force to keep the cone open. Simultaneously, it is difficult for medical personnel to precisely control the extent of stretching when stretching the cone section. Contents of the invention [0005] Embodiments of the present invention at least provide a distraction device for posterior lumbar surgery, which is used for posterior lumbar interverteb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/02
CPCA61B17/025A61B2017/0256
Inventor 廖琦万文兵蔡风黄加裕刘浪
Owner THE SECOND AFFILIATED HOSPITAL TO NANCHANG UNIV
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