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An orthopedic nail removal device

A broken nail and orthopedic technology, applied in the field of orthopedic instruments, can solve the problems of broken nails that cannot be unscrewed and slipped, and achieve good results, good nail removal effect, and reduce the possibility of slipping

Active Publication Date: 2022-06-28
LISHUI PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under this structure, only the clamping force of the claw spring is used to clamp the broken nail. When the broken nail is unscrewed, slipping is likely to occur between the claw spring and the broken nail, resulting in the failure of the broken nail to be unscrewed.

Method used

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  • An orthopedic nail removal device
  • An orthopedic nail removal device
  • An orthopedic nail removal device

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] like Figure 1-7 As shown in the figure, an orthopaedic nail-removing device includes a holding member 1, a clamping member, a nail-removing member and a driving member. The holding member 1 is made of plastic and has a columnar structure, which is convenient for hands Holding, the outer surface of the holding member 1 is provided with a plurality of anti-skid lines 11 at an even interval, the anti-skid lines 11 can be formed by directly protruding outward from the outer surface of the holding member 1, and the anti-skid lines 11 are arranged in an arc structure; The fastening part is fixed on the lower part of the holding part 1 for fixing the outer surface of the pressing bone nail when the broken bone nail 2 is taken out; the nail taking part is fixed on the lower part of the holding part 1 for extending into Into the bone nail, it cooperates with the fixed and anti-rotation; specifically, the clamping part includes a plurality of clamping arms 31 and a hoop ring 32 ...

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Abstract

The invention discloses a device for taking out broken nails for orthopedics, which comprises a gripping part with a plurality of anti-slip lines on its surface; a clamping part fixed at the lower part of the gripping part for taking out a broken bone The bone screw is fixed on the outer surface of the compression bone screw, which includes a plurality of clamping arms and a clamping ring that can move up and down relative to the clamping arms. The clamping arms are arranged in an outwardly expanded structure and have a first end and a second end that can swing relative to the first end. During the movement of the tightening ring, the second end can be driven to swing inward to compress the bone nail; the nail removal part is fixed at the lower part of the holding member . The invention clamps the bone nail through the cooperation of the clamping part and the outer wall of the bone nail, and through the anti-rotation cooperation between the nail taking part and the inner wall of the bone nail, it is ensured that there will be no slippage between the device and the bone nail, and the nail taking effect is good.

Description

technical field [0001] The invention belongs to the technical field of orthopedic instruments, and in particular relates to an orthopedic broken nail removal device. Background technique [0002] In clinical practice, bone nails and plates are usually used to fix or reduce the fractured parts. During the process of removing the bone nails, the bone nails are prone to breakage. Aiming at the need of taking out broken nails, Chinese patent CN203436389U discloses an "Orthopedic Nail Removing Device", which includes a claw spring part 1, a clamping part 2 and a nut. When the nail is taken out, the nut is rotated so that the claw spring part can remove the broken nail. After clamping, the tool clamping part is rotated to unscrew the broken nail. However, under this structure, the broken nail is clamped only by the clamping force of the claw spring. When the broken nail is unscrewed, slippage occurs easily between the claw spring portion and the broken nail, so that the broken na...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/92
CPCA61B17/92A61B2017/922
Inventor 范秋平李浩吴叶芳
Owner LISHUI PEOPLES HOSPITAL
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