Door-shaped nail pre-bender and guider for orthopedics ligament reconstruction

Abstract

The invention provides a door-shaped nail pre-bender and guider for orthopedics ligament reconstruction. A front end of a handle I is provided with a pre-bending head; the pre-bending head is provided with a blind hole downwards with a diameter of 2.5mm and a depth of 20mm; the blind hole is matched with the diameter of the door-shaped nail in a clearance mode; a pre-bending groove is installed downwards besides the pre-bending head apart from the blind hole; the pre-bending groove is an opening groove with a width of 2.5mm; an inclined plane is installed under the pre-bending groove, wherein the included angle between the bottom surface and the inclined plane is 120 DEG, and a shear plane is formed by the inclined plane and the lower end of the opening groove; a door-shaped nail for orthopedics ligament reconstruction comprises a handle II whose front end is provided with a guiding hole; the guiding hole is provided with a guiding block; the middle of the guiding block is provided with double grooves which are matched with two sides of the door-shaped nail; the guiding block is assembled by two half blocks. Kirschner wires with a diameter of 2.5mm can be conveniently pre-bent into door shape with the door-shaped nail pre-bender, and then cut with a vice to obtain door-shaped nails; the door-shaped nail guider makes it easy to install door-shaped nails without bending the door-shaped nails and the door-shaped nails be firmly embedded in sclerotin.

Description

technical field [0001] The invention relates to a door nail tool for orthopedic ligament reconstruction, in particular to a door nail prebender and guider for orthopedic ligament reconstruction. Background technique [0002] Door nails: they look like doors or staples. In arthroscopic anterior cruciate ligament and posterior cruciate ligament reconstruction, Kirschner wires are often used to make door nails, and the door nails are smashed into the bone, and then The ligament suspension is fixed on the portal nail. [0003] The tools used to make door nails using Kirschner wires are hollow drills, pliers, pliers, etc., which are prone to failure in size and shape. When installing door nails, use a hammer and a hammer to make the door nails enter the tibia In the bone, door nails are often bent during this process, making installation difficult; surgeons use tools to pre-bend door nails on the operating table to make door nails, and the length and pre-bending angle of the doo...

AI Technical Summary

Problems solved by technology

[0003] The tools used to make door nails using Kirschner wires are hollow drills, pliers, pliers, etc., which are prone to failure in size and shape. When installing door nails, use a hammer and hammer to make door nails enter the tibia In the bone, door nails are often bent during this process, making installation difficult; surgeons use tools to pre-bend door nails on the operating table, and the length and pre-bending angle of the door nails often do not meet the requirements

[0004] During the process of smashing door-shaped nails into the bone, due to the hard bone, the door-shaped nails often bend, and even the bone splits, making it difficult to install.

[0005] The above increases the difficulty of the operation and prolongs the operation time

Images