Lower limb fixing mechanism for knee joint replacement

A technology of knee joint replacement and fixation mechanism, which is applied in the field of lower limb fixation mechanism, can solve the problems of affecting the operation, affecting the operation effect, and not fixing the lower limbs, etc., and achieves the effects of simple mechanism structure, improved operation quality and easy operation

Inactive Publication Date: 2016-06-15
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In knee replacement surgery, an assistant is usually required to hold the femur and tibia. If the lower limbs cannot be kept stable during the operation, the surgical effect may be affected; in addition, the assistant occupies the space of the

Method used

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  • Lower limb fixing mechanism for knee joint replacement
  • Lower limb fixing mechanism for knee joint replacement
  • Lower limb fixing mechanism for knee joint replacement

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

[0020] Such as figure 1 and figure 2 As shown, a lower limb fixation mechanism for knee joint replacement, including electric cylinder assembly I, thigh adjustment rod II, calf adjustment rod III and "I"-shaped slide rail IV, is characterized in that: the electric cylinder assembly The lower end of Ⅰ is connected with the "I"-shaped slide rail Ⅳ through the electric cylinder slide 1, and the upper end is fixedly connected with the thigh adjustment rod Ⅱ; the lower end of the thigh adjustment rod Ⅱ and the lower end of the calf adjustment rod Ⅲ respectively pass through the thigh slide 9 and the calf slide 29 forms a mobile connection with the "I"-shaped slide rail IV; the position of the electric cylinder slide 1, the thigh slide 9, the calf slide 29 and the "I"-shaped slide 30 is fixed by the first jacking bolt 2; The upper end of the thigh...

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Abstract

The invention relates to a lower limb fixing mechanism for knee joint replacement, and belongs to the field of orthopedic medical instruments. The lower limb fixing mechanism is used for fixing and adjusting the lower limb positions in knee joint replacement and comprises an electric cylinder assembly, a thigh adjusting rod, a shank adjusting rod and an I-shaped slide rail; the lower end of the electric cylinder assembly is movably connected with the I-shaped slide rail through an electric cylinder slide seat, the upper end of the electric cylinder assembly is fixedly connected with the thigh adjusting rod, the thigh adjusting rod and the shank adjusting rod are movably connected with the I-shaped slide rail through a thigh slide seat and a shank slide seat respectively, and the thigh adjusting rod is rotatably connected with the shank adjusting rod through a pin shaft. The lower limb fixing mechanism has the advantages of being simple in structure, convenient to use, light and the like, it can be guaranteed that the lower limbs are fixed reliably and the positions are convenient to adjust in an operation, the repeated positioning precision is improved, the doctor workload is reduced, and the operation quality can be improved.

Description

technical field [0001] The invention relates to a lower limb fixation mechanism for knee joint replacement, belonging to the technical field of orthopedic medical devices. Background technique [0002] Because knee joint disease will greatly affect the patient's ability to move freely, for patients with severe joint disease, it is difficult to guarantee the curative effect only by drugs and physical therapy. pain. [0003] In knee replacement surgery, an assistant is usually required to hold the femur and tibia. If the lower limbs cannot be kept stable during the operation, the surgical effect may be affected. In addition, the assistant occupies the space on the operating table, affecting the operation. The existing leg immobilization devices used for knee replacement are bulky and heavy, and even the lower limbs are not fixed during the operation, and cannot meet the needs of different patients with different leg lengths. At present, there is a clinical need for an effect...

Claims

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Application Information

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IPC IPC(8): A61G13/12A61B90/14
CPCA61G13/1245A61G13/126A61G2203/10A61G2210/10
Inventor 雷静桃张恒唐明瑶
Owner SHANGHAI UNIV
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