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Percutaneous cervical arc root screw internal fixing system

A technology of pedicle screw and fixation system, which is applied in the direction of internal fixator, fixator, internal bone synthesis, etc., can solve the problems of increasing the difficulty of operation, prolonging operation time, increasing surgical trauma, etc., so as to reduce intraoperative bleeding, Simplify the operation steps and reduce the effect of surgical trauma

Inactive Publication Date: 2008-03-26
周跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these complicated auxiliary equipment also make the operation expensive and the operation is more complicated, which prolongs the operation time and increases the operation trauma to a certain extent.
At the same time, the length of the working channel is a fixed value. Although it is suitable for the operation of most patients, for patients with special body types, the unsuitable length of the working channel will increase the difficulty of the operation and prolong the operation time. Surgical Trauma

Method used

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  • Percutaneous cervical arc root screw internal fixing system
  • Percutaneous cervical arc root screw internal fixing system

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Experimental program
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Embodiment Construction

[0025] The structure of this fixing system will be described in detail below in conjunction with the accompanying drawings:

[0026] Referring to Fig. 1 and Fig. 5, the fixation system is composed of three parts: a channel-integrated pedicle screw, a screw plug 4 and a self-positioning connecting rod 3. in:

[0027] The channel-integrated pedicle screw consists of a lower screw shaft 2 and an upper screw head 1 . Referring to Figures 3 and 4, the screw shaft 2 has a self-tapping external thread 2-1, and its upper end is a hemispherical joint 2-2, which is assembled in the spherical cavity 1-5 at the lower end of the screw head, and the two are universally connected Structural connection, and equipped with a spherical bush 6 and a positioning washer 5, the upper end of the hemispherical joint 2-2 of the screw rod 2 has an inner hexagonal opening 2-3, which is used to cooperate with the auxiliary insertion tool, and the screw rod 2 is a hollow structure , with a central channe...

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Abstract

The present invention relates to a percutaneous pediculus arcus vertebrae screw internal fixation system. It includes the following three portions: channel integrated type pediculus arcus vertebrae screw, screw plug and self-positioning connection rod. Said invention also provides the concrete structure of above-mentioned every portion, and also provides the concrete operation method of said percutaneous pediculus arcus vertebrae screw internal fixation system.

Description

technical field [0001] The invention relates to an internal fixation operation device for spinal surgery, and more specifically, relates to a posterior spinal percutaneous pedicle screw internal fixation system for treating motion segments of spinal lesions. Background technique [0002] At present, the surgical treatment of spinal trauma, degenerative diseases, degenerative diseases and other spinal instability diseases often requires the use of spinal internal fixation devices. The purpose of applying spinal internal fixation devices is to provide strong fixation and strong support to maintain the correction of deformity, ensure the stability of the surgical segment, promote fusion, and allow early mobilization of the patient with minimal or no external fixation support. . [0003] Pedicle screws were conceived in 1944 and used to fix the lumbosacral joint with success until 1959. In 1970, doctors in France and Switzerland began to use pedicle screws clinically. After i...

Claims

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Application Information

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IPC IPC(8): A61B17/70A61B17/86
Inventor 周跃吕宏琳
Owner 周跃
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