External fixation device for reconstruction of femoral head

Abstract

The invention discloses an external fixation device for the reconstruction of a femoral head. The external fixation device includes an internal sleeve, a screw rod is adjusted in a spiral and twist mode according to the distance between a broken bone of a patient and a hip joint, the matching position of the internal and external sleeves is adjusted, spicules are nailed into the broken bone, the spicules located outside the body are arranged into spicule installation holes, and positioning is achieved; the position of a turntable on the screw rod is adjusted according to the actual demand, and the top tight positioning of a positioning block is achieved after the adjustment is finished. The spicules are nailed into the hip joint, so that the spicules located outside the body are arranged into circular holes formed through the butt connection of two arc-shaped grooves, and the clamping of the spicules and positioning of the positioning block are achieved through locking nuts. The spicules are nailed into the lower part of the broken bone so that the spicules located outside the body are arranged into the circular holes formed through the butt connection of the two arc-shaped grooves, and the clamping of the spicules and the positioning of the positioning block are achieved through locking nuts. The spicule positioning of the structure allows gravity to be dispersed to the hip joint to facilitate a patient to move around.

Description

technical field [0001] The invention relates to an external fixation support device for femoral head reconstruction. Background technique [0002] The hip joint is a multi-axial joint, which can perform flexion and extension, retraction, rotation and circular movement. The hip joint is connected with the femur. In the treatment of diseases of the femoral head or broken bones, bone needle positioning therapy is generally used. At present, the tools for fixing bone needles are mainly plaster external fixation or simple fixation devices, but these fixation methods have the same disadvantage, that is, the gravity is concentrated on the leg However, long-term immobilization of the legs will lead to complications such as muscle atrophy. In addition, in the prior art, when the femoral head is worn, generally only the femoral head is treated. After the treatment, the gravity of the patient when walking is still on the femoral head, that is, the femoral head will still wear, so this...

AI Technical Summary

Problems solved by technology

In the treatment of diseases of the femoral head or broken bones, bone needle positioning therapy is generally used. At present, the tools for fixing bone needles are mainly plaster external fixation or simple fixation devices, but these fixation methods have the same disadvantage, that is, the gravity is concentrated on the leg However, long-term immobilization of the legs will lead to complications such as muscle atrophy

In addition, in the prior art, when the femoral head is worn, the treatment is generally only for the femoral head. After the treatment, the gravity of the patient's walking is still on the femoral head, that is, the femoral head will still be worn, so this treatment method is not practical.

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