Device for assisting closed reduction and needle placement internal fixation of femoral neck fracture

Abstract

The invention relates to a device for assisting closed reduction and needle placement internal fixation of femoral neck fracture, which comprises a fixing plate, and the fixing plate comprises a vertical plate and a horizontal plate; a first fixed clamping jaw assembly is fixedly arranged at one end of the first connecting rod, the first fixed clamping jaw assembly is connected with the base part of the fixed plate, and a second fixed clamping jaw assembly is fixedly arranged at the other end of the first connecting rod; a third fixed clamping jaw assembly is arranged at one end of the second connecting rod, and a holding hand is arranged at the other end of the second connecting rod; the holding hand is connected with the fixing plate through a second connecting rod. The defect that existing single foot traction and traction force are insufficient is overcome, any correction traction force in the inside-outside, up-down, longitudinal and rotating directions is jointly provided for the femoral neck fracture far end (thigh), satisfactory closed reduction of the femoral neck fracture is easily achieved, and favorable conditions are created for internal fixation of the fracture; the device can replace an operator to hold a tool, prevents the operator from being harmed by X-ray radiation during fluoroscopy, and is convenient to mount and dismount.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a device for assisting closed reduction and internal fixation of femoral neck fractures. Background technique [0002] Femoral neck fracture is a frequently-occurring and common disease in clinical practice, especially one of the most common fractures in the elderly. If there is no obvious surgical contraindication for femoral neck fracture, early surgical treatment is advocated; the existing femoral neck fracture surgery is the first choice for hip preservation. For fixation, there is currently only a single foot traction during the implementation process, and the foot traction only provides longitudinal traction and indirect rotational force for the distal end of the fracture (thigh). In some patients with femoral neck fractures, it is difficult to achieve satisfactory closed reduction , Open reduction and internal fixation need to be cut open, and the surgical trauma of ...

AI Technical Summary

Problems solved by technology

[0002] Femoral neck fracture is a frequently-occurring and common disease in clinical practice, especially one of the most common fractures in the elderly. If there is no obvious surgical contraindication for femoral neck fracture, early surgical treatment is advocated; the existing femoral neck fracture surgery is the first choice for hip preservation. For fixation, there is currently only a single foot traction during the implementation process, and the foot traction only provides longitudinal traction and indirect rotational force for the distal end of the fracture (thigh). In some patients with femoral neck fractures, it is difficult to achieve satisfactory closed reduction , open reduction and internal fixation are required, and the surgical trauma of open reduction and internal fixation is relatively large, which increases the risk of complications such as surgical bleeding, neurovascular damage, and infection

Therefore, in the process of internal fixation, in addition to longitudinal traction and indirect rotational force by foot traction, it is also necessary to apply internal and external retraction force on the thigh, especially to retract the cuttings outward to approach the shortened fracture end. Increase the traction force of the thigh in the upper and lower positions, especially raise the affected limb upward to correct the sinking and displacement of the limb, and increase the direct rotation force of the thigh, that is, provide three-dimensional space and arbitrary corrective traction in six degrees of freedom, in order to obtain satisfactory results. Reset; secondly, in the past, when inserting the guide wire under fluoroscopy and using a screwdriver to screw in the screw, the operator needs to keep the electric drill or screwdriver, and the operator is exposed to X-ray fluoroscopy. Although the operator can wear protective clothing, it is only limited protection , still can not play the role of complete protection against X-ray radiation, generally requires multiple fluoroscopy, so there is still radiation hazard to doctors

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