Stretch type three-vertebra double-gap posterior non-fusion fixation system

A fixation system and double-gap technology, applied in the field of medical devices, can solve the problem of inability to fix three or more lumbar vertebrae, and achieve the effect of good tension and support force

Inactive Publication Date: 2015-04-29
杨春
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above problems, the present invention provides a stretched three-vertebral double-space posterior non-fusion fixation system, with the purpose of solving the problem that the existing lumbar fixation system cannot fix three or more lumbar vertebrae through the present invention

Method used

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  • Stretch type three-vertebra double-gap posterior non-fusion fixation system
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  • Stretch type three-vertebra double-gap posterior non-fusion fixation system

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Embodiment Construction

[0016] All the following drawings are only convenient for explaining the basic situation of the present invention, and the extension of the number, position, relationship, and size of the components that constitute the preferred embodiment will be described in the accompanying drawings, and relevant after reading and understanding the situation of the present invention The implementation of changes is an industry skill. Additionally, changes in precise dimensions and dimensional ratios to meet specific strength, weight, strength, and similar requirements are within the skill of the art after reading and understanding the circumstances of the present invention.

[0017] The same or similar components are marked with the same reference numerals in different drawings; , "inner", "outer", "end", "portion", "section", "width", "thickness", "area", etc. only to help describe the invention.

[0018] like Figure 1 to Figure 3 As shown, a stretched three-vertebral double-gap poster...

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Abstract

A stretch type three-vertebra double-gap posterior non-fusion fixation system comprises connecting pieces including a first connecting piece and a second connecting piece. 'U'-shaped structures are arranged at two ends of the connecting pieces and include a first 'U'-shaped structure, a second 'U'-shaped structure and a third 'U'-shaped structure, and a bulge is arranged in the middle of each connecting piece. A pedicle screw is connected with each of two ends of each 'U'-shaped structure, one end of the first 'U'-shaped structure is connected with the corresponding pedicle screw while the other end of the first 'U'-shaped structure is connected with one end of the first connecting piece, the other end of the first connecting piece is connected with one end of the second 'U'-shaped structure, the other end of the second 'U'-shaped structure is connected with one end of the second connecting piece, the other end of the second connecting piece is connected with one end of the third 'U'-shaped structure, the other end of the third 'U'-shaped structure is connected with the corresponding pedicle screw, and the middle of the second 'U'-shaped structure is connected with the corresponding pedicle screw. The stretch type three-vertebra double-gap posterior non-fusion fixation system is capable of connecting three lumbar vertebrae and opening two gaps effectively and solves the problem that only two lumbar vertebrae and one gap can be connected in the prior art.

Description

technical field [0001] The invention relates to a lumbar internal fixation system, in particular to a stretched three-vertebral double-space posterior non-fusion fixation system, which belongs to the technical field of medical devices. Background technique [0002] Patent ZL2013207349620 discloses a stretching non-fusion posterior lumbar fixation system, including two pedicle screws and a connecting piece, both ends of the connecting piece are set in a “U”-shaped structure, and the “U”-shaped A pedicle screw is respectively connected to the two ends of the structure, and it is characterized in that at least one bulge is arranged in the middle of the connecting piece, and the two ends of the bulge are respectively connected with one end of the two "U"-shaped structures. The patent has the following advantages: 1. The special three-dimensional design is replaced by stretching, which increases the span between stress points to a certain extent. The design of the connecting part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
CPCA61B17/7001A61B17/7074
Inventor 杨春
Owner 杨春
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