Femoral neck fixing mechanism and femoral neck fracture fixing structure thereof

A femoral neck fracture and fixation mechanism technology, applied in the direction of fixers, internal bone synthesis, fastening devices, etc., can solve the problems of locking nail cutting out, locking nail Z-shaped effect, etc., achieve less damage, strong pertinence, and effective stable effect

Inactive Publication Date: 2016-08-24
王建平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PFN is a reliable internal fixation device for the treatment of unstable fractures of the proximal femur. However, the locking nail still cuts out the femoral neck, and the internal and external movement of the locking nail leads to complications such as the Z-shaped effect.

Method used

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  • Femoral neck fixing mechanism and femoral neck fracture fixing structure thereof
  • Femoral neck fixing mechanism and femoral neck fracture fixing structure thereof
  • Femoral neck fixing mechanism and femoral neck fracture fixing structure thereof

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Embodiment Construction

[0014] Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the specific embodiments described here are merely examples and are not intended to limit the protection scope of the present invention.

[0015] See figure 1 and figure 2 , Is a schematic structural diagram of a femoral neck fracture fixation structure 100 provided by the present invention. The femoral neck fracture fixation structure 100 includes a femur 10 and a femoral neck fixation mechanism 20 connecting the fractured femur 10.

[0016] Such as image 3 As shown, the femur 10 is a human femur, which connects the human leg and pelvis. The femur 10 includes a femoral head 101, a greater trochanter 102, a femoral neck 103 connecting the femoral head 101 and the greater trochanter 102, and a femoral shaft 104 connected on the other side of the greater trochanter 102 with respect to the femoral neck 103 . The femoral neck fixing mec...

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Abstract

The invention relates to a femoral neck fracture fixing structure. The femoral neck fracture fixing structure comprises a femoral neck with a fracture line and a femoral neck fixing mechanism connected with the fracture line, wherein the femoral neck fixing mechanism comprises a femoral neck screw and a rotation resistant screw; the femoral neck screw comprises a screw body, two receding resistant screw threads and a penetrating hole, wherein the receding resistant screw threads form a right triangle in the axial section of the screw body, and the hypotenuse of the right triangle faces towards the screwing-in direction of the femoral neck screw; the rotation resistant screw is arranged in the penetrating hole of the femoral neck screw in a penetrating manner and is used for preventing the femoral neck screw from automatically rotating. According to the femoral neck fixing mechanism provided by the invention, the disadvantages that in DHS, a side screw is deviated, the operation time is long, and the bleeding amount is large are overcome; defects that in PFN, anchor resultant force is insufficient and the locking is cut out are improved by utilizing the reasonable combination of the femoral neck screws.

Description

Technical field [0001] The invention relates to an orthopedic internal fixation device, in particular to a femoral neck fixation mechanism for fixing and connecting a fractured femur and a femoral neck fracture fixation structure. Background technique [0002] The internal fixation devices widely used in the treatment of proximal femoral fractures mainly include an extramedullary internal fixation system and an intramedullary internal fixation system. The extramedullary internal fixation system includes DHS and dynamic condyle screw (DCS). The intramedullary fixation system includes proximal femoral reconstruction nails and femoral head intramedullary nails. However, DHS, DCS, proximal femoral reconstruction nails, and femoral head intramedullary nails have higher failure rates for A2 and A3 unstable fractures. For example, DHS has the dual effects of static and dynamic compression. It combines a sliding nail plate fixation device with a compression internal fixation device, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/86
Inventor 候之春王建平洪念国王悦沣
Owner 王建平
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