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Rotator cuff repairing device

A rotator cuff and fan-shaped block technology, which is applied in medical science, bone drill guidance, surgery, etc., can solve the problems of high requirements for push-type electric drills, broken needles in bones, and unfavorable clinical promotion, etc., to achieve easy application and promotion, Easy to pass the line and reduce the cost

Active Publication Date: 2020-11-03
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the bone needle is in a straight line in the cannula, and recovers after sliding out of the cannula, and the bone needle needs to have relatively high hardness to penetrate into the bone tissue under thrust without bending or breaking. Needles need to use expensive materials such as Nitinol to achieve the above functions, which is not conducive to clinical promotion
Moreover, because the bone is relatively hard, the requirements for the push-type electric drill are high, otherwise it is easy to deviate from the drilling direction, and even the needle may break in the bone.

Method used

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  • Rotator cuff repairing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1-Figure 4 As shown, the rotator cuff repair device of this embodiment includes a fan-shaped block 1 , a positioning pin 3 , a catheter 4 , a universal flexible shaft drill, and a wire-taking tube 10 .

[0037] One end of the sector block 1 in the circumferential direction forms a fixing portion 11 , and the other end of the sector block 1 in the circumferential direction forms a mounting portion 12 .

[0038] The mounting part 12 is provided with a first through hole 13 that runs through the two end surfaces of the sector block 1 in the radial direction, and the conduit 4 is passed through the first through hole 13 and can move back and forth along the axial direction of the first through hole 13. The lower part of 4 is bent to form a guide part 41 that matches with the arc-shaped bone tunnel to be formed. When the guide part 41 is located in the bone tunnel and cooperates with the bone tunnel, the axial centerline of the first through hole 13 passes t...

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PUM

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Abstract

The invention discloses a rotator cuff repairing device. The rotator cuff repairing device comprises a fan-shaped block, a guide pipe and a universal flexible shaft drill, wherein a fixing part is formed at one end of the fan-shaped block in the circumferential direction, a mounting part is formed at the other end of the fan-shaped block, a through hole penetrating through the two end surfaces ofthe fan-shaped block in the radial direction is formed in the mounting part, the guide pipe penetrates through the through hole and can move axially, and the lower portion of the guide pipe is bent toform a guide part matched with a to-be-formed arc-shaped bone tunnel. During work, a universal flexible shaft of the universal flexible shaft drill penetrates through the guide pipe, then one end isconnected with a drilling machine, the other end is connected with a drill bit, and the drill bit can be driven by the drilling machine to drive the guide part to enter bone tissue so as to drill outan arc-shaped bone tunnel. A common universal flexible shaft drill is adopted, an arc-shaped bone tunnel can be drilled under the guidance of the guide pipe, the requirements for an electric drill andthe guide pipe are low, and the cost is greatly reduced; and moreover, the electric drill drills holes in a rotating mode, bone tunnels can be drilled easily when the electric drill collides with hard bones, and direction deviation is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a rotator cuff repair device. Background technique [0002] Usually rotator cuff repair is done through open surgery or arthroscopically. At present, whether it is to repair the rotator cuff through open surgery or repair the rotator cuff under shoulder arthroscopy, a bone tunnel is required. However, a straight-line guiding device is commonly used in bone tunneling at present, and what is punched is a straight-line bone tunnel. Because the humeral head is in an irregular arc shape, there is less bone mass in the section from the bone tunnel to the bone surface in the straight-line bone tunnel made on it, which is prone to complications related to the surgical drilling operation, and there is a risk of bone loss after the wire fixation. Less fixation is not firm, and even the problem of bone collapse. However, the design of the existing positioner for rotator cuff repa...

Claims

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Application Information

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IPC IPC(8): A61B17/16A61B17/17
CPCA61B17/1642A61B17/1684A61B17/1778
Inventor 高曙光刘伟杰雷光华旷世达苏超李宇晟熊依林肖文峰曾超
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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