Calcar femorale osteotomy positioner

A locator and femur technology, which is applied to surgical saws and other directions, can solve problems such as unfavorable patient rehabilitation, affect surgical results, prolong operation time, etc., and achieve the effect of good osteotomy effect, shortening operation time, and convenient use.

Active Publication Date: 2013-06-12
张英泽
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the limited exposure of the femoral neck that needs osteotomy during the operation, the position is deep, and there is a lack of suitable and special osteotomy positioning tools, it brings great inconvenience to the operation of this type of operation.
Clinicians can only rely on experience to operate, which makes it very difficult for the installation plane of the hip joint prosthesis to meet the ideal surgical requirements, which not only prolongs the operation time, but more importantly, affects the surgical effect, which is not conducive to the patient recover
This situation has not been fundamentally changed so far, and it has become the main factor restricting the ideal effect of orthopedic hip replacement surgery, and it is necessary to take measures to solve it

Method used

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  • Calcar femorale osteotomy positioner
  • Calcar femorale osteotomy positioner
  • Calcar femorale osteotomy positioner

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The upper part of the femoral talus osteotomy locator of the present invention is a guide table 1 , and the lower part is a positioning seat 2 .

[0020] As shown in the figure, the guide table 1 is arc-shaped, and the inner side of the arc of the guide table 1 is a positioning groove 3, and the peripheral shape of the positioning groove 3 matches the outer circumference of the femoral calcar to play a positioning role. When in use, the positioning groove 3 surrounds the outer circumference of the femoral calcar. Since the peripheral shape of the positioning groove 3 matches the outer circumference of the femoral neck, the guide table 1 cannot rotate with the femoral calcar, so that the guide table 1 and the femoral calcar can achieve circumferential positioning.

[0021] As shown in the figure, there is a transverse osteotomy guide slit 13 in the middle of the guide table 1, and the slit width of the osteotomy guide slit 13 matches the saw slit of the oscillating saw. ...

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Abstract

A calcar femorale osteotomy positioner belongs to the technical field of bone surgery appliances and is used for playing an auxiliary positioning function for calcar femorale osteotomy in an orthopedic hip-joint displacement operation. The technical scheme is as follows: a guiding table is arranged at the top part of the positioner, a positioning seat is arranged at the lower part of the positioner, the guiding table is circular arc-shaped, a positioning groove is arranged on the inner side of the circular arc of the guiding table, the positioning groove is matched with the circumference of the calcar femorale, a transverse osteotomy guiding slit is arranged at the middle part of the guiding table, a clamping groove is arranged at the lower part of the positioning seat, and the peripheries of the clamping groove are matched with a circumference at the top part of a small rotor. An operator uses a swing saw to carry out osteotomy along the osteotomy guiding slit to enable an osteotomy surface to be smooth and meet the mounting angle of a hip joint false body, so that the problem that femur osteotomy surface and angle in the hip joint displacement operation can not meet an ideal requirement in a long term is solved. The calcar femorale osteotomy positioner has simple structure and excellent osteotomy effect, is convenient to use, shortens the time of an operation, is an ideal auxiliary appliance for osteotomy of the femur in the hip joint displacement operation, and has popularization and application values.

Description

technical field [0001] The invention relates to an auxiliary device for osteotomy of a femoral calcar in an orthopaedic hip joint replacement operation, belonging to the technical field of orthopaedic surgical instruments. Background technique [0002] As my country fully enters an aging society, osteoporotic femoral neck fractures are more and more common in the elderly over 65 years old, and total / hemi hip replacement has become the preferred treatment for patients with displaced femoral neck fractures. In hip replacement surgery, the residual femoral neck needs to be osteotomy to find a suitable hip joint prosthesis installation plane, which has strict requirements on flatness and plane angle. First, the flatness of the plane should be straight, without protrusions or depressions, so that the hip joint prosthesis is in close contact with the installation plane, so that the post-operative connection is firm; It is particularly important that the position and orientation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/15
Inventor 张英泽郑占乐杨磊
Owner 张英泽
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