Broken nail removal device for orthopedics

Abstract

The invention discloses a broken nail removal device for orthopedics. The device includes a holding member, a clamping part fixedly arranged at the lower part of the holding member and a nail removingpart fixedly arranged at the lower part of the holding member; the surface of the holding member is provided with multiple anti-skid lines; the clamping part is used for compressing the outer surfaceof a bone nail to fix the bone nail when the broken bone nail is removed and includes multiple clamping arms and a fastening ring which can move up and down relative to the clamping arms; the clamping arms are in outer expansion structure arrangement and have first ends connected to the holding member and second ends swinging relative to the first ends; and the fastening ring can drive the secondends to swing inwards so as to compress the bone nail during moving. The bone nail can be compressed through the cooperation of the clamping part and the outer wall of the bone nail, the cooperationof stopping and rotating can be performed through the nail removing part and the inner wall of the bone nail, and therefore, situations of slipping between the device and the bone nail can be guaranteed to not happen, and good nail removing effects can be achieved.

Description

Technical field

[0001] The invention belongs to the technical field of orthopedics instruments, and in particular relates to a broken nail and nail removal device for orthopedics. Background technique

[0002] In clinical practice, bone nails and steel plates are usually used to fix or reduce the fracture site. In the process of removing the bone nail, the bone nail is easily broken. In view of the need to take out broken nails, Chinese Patent CN203436389U discloses an "Orthopedic Nail Removal Device", which includes a claw spring part 1, a clamping part 2, and a nut. When the nail is removed, the nut is turned to make the claw spring part break the nail. After clamping, rotate the clamping part of the tool to remove the broken nail. However, under this structure, only the clamping force of the claw spring can realize the clamping of the broken nail. When the broken nail is unscrewed, slippage is likely to occur between the claw spring portion and the broken nail, resulting in t...

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