A fracture reducer

A technology of reducer and bone nail, which is applied in the field of orthopedic instruments, can solve the problems of broken nails that cannot be unscrewed and slipped, and achieve the effect of reducing the possibility of slipping and reducing the possibility of removing the nails.

Active Publication Date: 2022-07-15
LISHUI PEOPLES HOSPITAL
View PDF10 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A fracture reducer
  • A fracture reducer
  • A fracture reducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] like Figure 1-7 As shown in the figure, a fracture reducer 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 cylindrical structure, which is convenient for hands to hold. A plurality of anti-skid lines 11 are evenly spaced on the outer surface of the holding member 1. The anti-skid lines 11 can be formed by protruding directly outward from the outer surface of the holding member 1, and the anti-skid lines 11 are arranged in an arc structure; The lower part of the holding part 1 is used to fix the outer surface of the compressed bone nail when the broken bone nail 2 is taken out; Cooperate with the fixed anti-rotation; specifically, the clamping part includes a plurality of clamping arms 31 and a clamping ring 32 that can move up and down relative to the clamping arms. The clamping arms 31 are arranged in an outward expansion structure and have a The first end 311 and the secon...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a fracture reducer, comprising a bone nail and a nail remover matched with the bone nail; the bone nail comprises an outer nail and an inner nail arranged in the outer nail, and the outer nail is provided with a plurality of The use method of the fracture reducer includes the following steps: (1) when the bone nail is broken during the removal process, first remove the inner nail in the outer nail, so that the interior of the outer nail is hollow; (2) ) Insert the nail-removing sleeve into the outer nail, move the top piece downwards, spread the shrapnel outward, and realize the anti-rotation cooperation between the convex strip and the anti-rotation protrusion; (3) Drive the clamping part to clamp the external nail , and then turn the holding piece to drive the outer nail to rotate and take it out from the affected area. The invention clamps the bone nail through the cooperation between the clamping part and the outer wall of the bone nail, and ensures that the device and the bone nail will not slip between the device and the bone nail through the screw-taking part and the inner wall of the bone nail for anti-rotation cooperation, and the nail removal effect is good.

Description

technical field [0001] The invention belongs to the technical field of orthopedic instruments, in particular to a fracture reducer. 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 nail cannot be unscrewed. SUMMARY ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap