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Minimally invasive transpedicular bone grafting supporting nail

A technology for supporting nails and pedicles, which is applied in the field of spinal surgery medical instruments, can solve problems such as insufficient stability and inability to adjust the direction, and achieves the effects of simple structure, small trauma surface, and convenient production and manufacture.

Inactive Publication Date: 2017-02-01
张巍 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems that the existing pedicle screws cannot adjust the direction and have insufficient stability during the insertion process, the present invention provides a minimally invasive pedicle bone graft support screw

Method used

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  • Minimally invasive transpedicular bone grafting supporting nail
  • Minimally invasive transpedicular bone grafting supporting nail
  • Minimally invasive transpedicular bone grafting supporting nail

Examples

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Embodiment Construction

[0026] In order to better understand the technical solution of the present invention, the specific implementation manners provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the minimally invasive pedicle bone graft support screw provided by the present invention comprises a first thread segment 1, a second thread segment 3, a spacer segment 2, a cylinder segment 4 and a nail tail 5, and the support screw has a shaft inside To the cavity of the through hollow structure, the first thread segment 1 is located at the front end of the support nail, the second thread segment 3 is located at the middle of the support nail, the first thread segment 1 and the second The threaded segments 3 are spaced apart to form spacer segments 2 without threads, and the rear end of the second threaded segment 3 is set as a cylinder segment 4 and a nail tail 5 connected in sequence. As shown in the fi...

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Abstract

The invention provides a minimally invasive transpedicular bone grafting supporting nail suitable for operation of a patient having a vertebral disease. The minimally invasive transpedicular bone grafting supporting nail comprises a first thread section, a second thread section, a spacing section, a cylinder section and a nail tail, wherein the first thread section is located at the front end of the supporting nail, the second thread section is located in the middle of the supporting nail, the spacing section free of a thread is formed between the first thread section and the second thread section in a spaced mode, and the cylinder section and the nail tail which are connected in sequence are arranged at the rear end of the second thread section. By the adoption of sectioned thread structures of the front end and the rear end of the supporting nail, the stability of a holding force can be ensured. During operation, the supporting nail is close to a sunken center, a resetting effect is good. Bone cement or a liquid bone can be also arranged at the sunken center by utilizing the supporting nail, and a bone grafting effect is good.

Description

technical field [0001] The invention belongs to the field of medical devices for spinal surgery, and in particular relates to a minimally invasive pedicle bone graft support screw suitable for patients with spinal fractures and spinal injuries. Background technique [0002] In spinal surgery, pedicle screw, as a mature surgical device, has been widely used for many years. In particular, the minimally invasive pedicle screw placement technology, which has developed rapidly in recent years, has been widely used all over the world due to its small trauma and definite effect. In the treatment of spinal injuries and fractures, the main function of minimally invasive pedicle screws is to perform spinal reduction, stabilize the dynamic segments of the spine, and promote fusion of related segments. Bone grafting to achieve effective treatment of spinal injuries and fractures. [0003] As we all know, the implementation of minimally invasive pedicle screw fixation will be subject t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
CPCA61B17/70A61B2017/564
Inventor 张巍唐佩福袁森
Owner 张巍
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