Device for surgical displacement of vertebrae

A technique of surgery and vertebra, which is applied in the field of surgical treatment of vertebral dislocation, can solve the problems of endangering the biological structure, unable to provide firm fixation, etc., and achieve the effect of compact structure, simple structure, and prevention of secondary slippage

Inactive Publication Date: 2014-07-02
LFC Z O O
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage of this solution is the mechanism for anchoring the intervertebral spacer in the vertebral body, which does not provide firm fixation during reduction, allowing the elements of the spacer to protrude from the vertebral margins after regression, thus endangering the Biological structure in

Method used

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  • Device for surgical displacement of vertebrae
  • Device for surgical displacement of vertebrae
  • Device for surgical displacement of vertebrae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 The device shown in is composed of a sliding part 1 with a threaded guide 2 , a carrier part 3 and an externally threaded drive element 4 provided with a head 5 . The sliding part 1 and the carrying part 3 of the device are provided with drive anchoring elements 6 on the outer surfaces. The drive-anchoring elements 6 on the sliding part 1 of the device are in the form of a shelf provided with a resistance surface and a shaped cutting knife 7 . The sliding part 1 is also provided with at least two tangible elements 8 in the form of a part of a cylinder constituting, together with the tangible elements 9 in the carrier part 3 of the device, a lock preventing them from moving along with the device. Separation occurs in a direction orthogonal to the longitudinal axis. The head 5 of the drive element 4 is provided with a manipulation element 10 assigned to cooperate with a mounting implement.

[0019] by figure 2 The device shown in the configuration in is prov...

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PUM

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Abstract

Device for surgical displacement of vertebrae comprising two parts cooperating in a sliding manner: a sliding part (1) with an internal thread and a carrier part (3) and comprising an external thread located between these two parts drive element (4). The drive element (4) is provided with a head (5). The sliding part (1) of the device is equipped with a threaded guide (2) cooperating with the drive element (4) and a seat with a diameter corresponding to that of the head (5) and a length greater than that of the head (5). The carrier part (3) of the device has a cylindrical base (12) of diameter and length corresponding to the diameter and length of the head (5). The sliding part (1) and the carrier part (3) are provided with cooperating with each other: at least one physical element (8) and a physical element (9) forming a barrier preventing separation of said two parts in a direction perpendicular to the longitudinal axis of the device locker.

Description

technical field [0001] The present invention relates to the surgical displacement of vertebrae, which has application in the surgical treatment of vertebral dislocations. Literature data show that on average 10% of patients treated for back pain experience vertebral slippage. The lesion can cause significant disability in juveniles and adults. When neurological symptoms and / or pain appear, or even increase, surgical treatment of vertebral dislocations is required even after previous conservative treatment. In medical practice to date, the most common treatment involves achieving spinal fixation of the spine through bony fusion at sliding levels. Vertebrofusion in itself is not always a sufficient means and does not bring positive results in the form of: restoration of the proportions in the height of the intervertebral disc space, thus reconstruction of the correct geometry, reduction of postural deformations, removal of pain discomfort, biological Restoration of mechanical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2002/30523A61B2017/0256A61F2002/30387A61F2002/30848A61F2250/0008A61F2250/0007A61F2002/30393A61F2220/0025A61F2002/3055A61F2002/30553A61F2002/30827A61F2002/30845A61B17/70A61B17/7082A61F2/44
Inventor L.F.丘皮克M.斯帕尔斯基R.冈兹伯格D.扎齐克基J.皮尼亚泽克
Owner LFC Z O O
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