Broken screw extractor for orthopedics department clinic

Abstract

The invention discloses a broken screw extractor for orthopedics department clinic. The broken screw extractor comprises a fixed cylinder with an open bottom end, the top of the inner wall of the fixed cylinder is rotationally connected with an outer threaded cylinder with the two ends open through bearings, connecting rods are hinged to the left side and the right side of a moving block through hinge seats, through grooves are formed in the tops, close to the left side and the right side, of the fixed cylinder, the top of a fixing disc is rotationally connected with a screw rod through a bearing, the surface, close to the bottom end, of the screw rod is in threaded connection with a moving part, and the opposite sides of the two clamping parts are in sliding connection with the opposite sides of two moving plates through sliding parts. Through cooperation of the structures, the broken screw extractor solves the problems that in the broken screw extracting process, the broken screw extractor is not ideal in broken screw clamping and fixing effect, broken screws are prone to disengagement in the pulling-out process, after the broken screw is clamped and fixed, the broken screw is pulled out in an upward lifting mode through a handle, labor is wasted, and the pulling-out efficiency is low.

Description

technical field [0001] The invention relates to the technical field of orthopedic auxiliary instruments, in particular to a broken nail extractor for clinical use in orthopedics. Background technique [0002] After the orthopedic surgery is completed, the skin wound will be closed. Generally, the sterilized skin nails will be nailed into the skin on both sides of the wound directly using a nailing machine, and the skin at the wound will be fixed to make it closed. When the wound at the fracture site is healed, It is necessary to pull out the nail-skin nails. Due to factors such as external forces, the nail-skin nails are prone to rust and breakage, so it is necessary to use a special instrument for pulling out broken nails. [0003] For example, the Chinese Patent Publication No. CN208725862U discloses a broken nail remover for orthopedic clinical use, including a support seat, a handle is fixedly connected to the upper surface of the support seat, and two fixed blocks are s...

AI Technical Summary

Problems solved by technology

[0004] Because the clipping and fixing effect of the broken nail remover is not ideal in the process of taking out the broken nail, it is easy to cause the broken nail to fall off during the pulling out process, and after the broken nail is clamped and fixed, the broken nail can be clamped and fixed by the handle Pulling upwards is more laborious and less efficient, so it needs to be improved

Images