Bone screw and bone lamella structure

Abstract

The invention relates to the field of medical orthopedics, and particularly relates to a bone screw and bone lamella structure. The structure comprises a bone lamella body, wherein the bone lamella body comprises a combining part and an extending part; the outer side end of the extending part is connected to the upper end of the combining part, and a preset angle is formed between the combining part and the extending part, so that the whole body is bent; bone tapping screw threads are formed in the outer edge of the inner side end of a grooving bone nail, and the outer side end has preset length, so that the outer side end can be combined with the extending part in a reciprocating moving manner; at least one first long groove is formed in the outer edge and axially extends in preset length; the inner side end of a fixing screw is screwed to the outer side end of the grooving bone nail, and the outer side end of the fixing screw is limited through a stopping part and is kept at the outer side end of the extending part. The bone screw and bone lamella structure has the advantages of being easy to mount, and particularly reducing the sinking of caput femoris; in addition, the effect of improving the stability of a combining part is obvious while the bone screw and bone lamella structure is applicable to fractured innominate bone subjected to osteoporosis.

Description

technical field [0001] The invention relates to the field of medical orthopedics, in particular to a bone screw and bone plate structure. Background technique [0002] In orthopedics, proximal femoral fracture is one of the common diseases, which often occurs in the elderly or people with osteoporosis. Among them, fractures of the femoral neck or greater trochanter at the hip joint due to osteoporosis usually use Dynamic Hip Screws or Compression Hip Screws to reduce and repair the fracture site. fixed. The above-mentioned various screw configurations, when used on patients with osteoporosis, often cause excessive subsidence of the femoral head because the femoral head of the patient is too loose; or, a lag screw (Lag screw) locked into the femoral head Screw), often because the area of ​​contact with the bone is too small, the fixation effect is not good, and even lead to complications such as the screw passing through the femoral head. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

The above-mentioned various screw configurations, when used on patients with osteoporosis, often cause excessive subsidence of the femoral head because the femoral head of the patient is too loose; or, a lag screw (Lag screw) locked into the femoral head Screw), often because the area of ​​contact with the bone is too small, the fixation effect is not good, and even lead to complications such as the screw passing through the femoral head.

Images