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Vertebral slippage lifting device

A lifting device and slippage technology, applied in the directions of internal bone synthesis, medical science, internal fixator, etc., can solve the problems of lack of reduction precision of surgical instruments and the influence of reduction precision on postoperative recovery, etc.

Active Publication Date: 2017-03-15
WINNTI MEDICAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, before internal fixation, the spondylolisthesis needs to be reset, and the accuracy of the reduction has a significant impact on postoperative recovery. At present, there is still a lack of a surgical instrument with high reduction accuracy and easy operation in this field.

Method used

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  • Vertebral slippage lifting device
  • Vertebral slippage lifting device
  • Vertebral slippage lifting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 , 5 As shown, the present embodiment provides a lifting device for spondylolisthesis, including a positioning mechanism 1 and a lifting mechanism 2. The positioning mechanism 1 includes a positioning plate 11, a positioning nail 12 and a positioning sleeve 13. The positioning plate 11 There is a first through hole 111 matched with the positioning nail 12, and one end of the positioning sleeve 13 is vertically and detachably fixed on the positioning plate 11; the lifting mechanism 2 includes a lifting hook 21, Such as image 3 , 4 As shown, the front schematic view and the side schematic view of the lifting hook 21 are firstly shown, and the lifting hook 21 includes a hook portion 211 and a rod portion 212 . Such as figure 1 As shown, the rod portion 212 of the lifting hook 21 is placed in the positioning sleeve 13; Figure 5 As shown, the positioning plate 11 has a second through hole 112 at the position connected to the positioning sleeve 13 throu...

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Abstract

The invention discloses a vertebral slippage lifting device which comprises a positioning mechanism and a lifting mechanism. The positioning mechanism comprises a positioning plate, a positioning pin and a positioning sleeve, the positioning plate is provided with a first through hole matched with the positioning pin, and one end of the positioning sleeve is vertically and detachably fixed to the positioning plate; the lifting mechanism comprises a lifting hook, the lifting hook comprises a hook-shaped portion and a rod portion, the rod portion of the lifting hook is arranged in the positioning sleeve, and a second through hole used for allowing the rod portion of the lifting hook to penetrate through is formed in the portion, connected with the positioning sleeve, of the positioning plate. The vertebral slippage lifting device is convenient to operate and high in reduction precision and causes few operation wounds.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a lifting device for spondylolisthesis. Background technique [0002] Spondylolisthesis is the partial or complete slippage of the upper and lower vertebral bodies due to congenital dysplasia, trauma, strain, etc., resulting in abnormal bony connection of adjacent vertebral bodies, manifested as lumbosacral pain, sciatic nerve involvement, intermittent Diseases with symptoms such as sexual claudication. [0003] In general, the spondylolisthesis needs to be reduced first, followed by internal fixation. In the prior art, there are mainly the following two types of instruments for the reduction and internal fixation of spondylolisthesis: 1. Short-segment internal fixation and internal fixation. For the vertebral bodies of the above segments, four pedicle screws are used; 2. Single-segment internal fixator. For example, the Chinese Patent Document No. CN2553757Y discloses a thread ...

Claims

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Application Information

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IPC IPC(8): A61B17/70
CPCA61B17/7064A61B17/7074A61B2017/564
Inventor 赵斌
Owner WINNTI MEDICAL TECH SHANGHAI CO LTD
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