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Tibia alignment device for knee joint replacement surgery

A knee joint replacement, tibia technology, applied in the direction of knee joint, surgery, joint implants, etc., can solve the problem of complicated operation of tibia alignment equipment

Inactive Publication Date: 2022-01-28
TEACHING HOSPITAL OF CHENGDU UNIV OF T C M
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the problem of complex operation of existing tibial alignment instruments in the existing knee joint replacement surgery, the present invention provides a tibial alignment device for knee joint replacement surgery

Method used

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  • Tibia alignment device for knee joint replacement surgery
  • Tibia alignment device for knee joint replacement surgery
  • Tibia alignment device for knee joint replacement surgery

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Embodiment Construction

[0027] A tibial alignment device for knee joint replacement surgery, which includes: a line of force confirmer 5 for holding the ankle, and an osteotomy position plate 1 for positioning the position of the osteotomy plate; it is characterized in that the line of force confirmer 5 has A horizontal ring 4 that is perpendicular to the longitudinal axis of the tibia 3; a ray transmitter 6 is provided on the horizontal ring 4, and a moving plate 409405 is provided on the horizontal ring 4 for the ray transmitter 6 to move in space; the The osteotomy position plate 1 has a positioning nail 102 that can be nailed on the longitudinal axis of the tibia 3 and an adjustment plate 103 that can rotate around the positioning nail 102 in a spatial angle; the lower end of the adjustment plate 103 has a detachable connection with the osteotomy plate. Shaft 2, and on the adjustment board 103, there is a position sensor 7 that receives the signal from the ray transmitter; before use, the position...

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Abstract

A tibia alignment device for knee joint replacement surgery comprises a force line confirmation device for holding the ankle and an osteotomy position plate for positioning the position of an osteotomy plate. The tibia alignment device is characterized in that the force line confirmation device is provided with a horizontal ring which is kept vertical to the longitudinal axis of the tibia; the horizontal ring is provided with a ray transmitter, and the horizontal ring is provided with a moving plate for spatial position movement of the ray transmitter; the osteotomy position plate is provided with a positioning nail capable of being nailed on the longitudinal axis of the tibia and an adjusting plate capable of rotating around the positioning nail at a space angle; and the lower end of the adjusting plate is provided with a connecting shaft which is detachably connected with the osteotomy plate, and the adjusting plate is provided with a position sensor which is used for receiving a signal transmitted by the ray transmitter.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a tibial alignment device for knee joint replacement surgery. Background technique [0002] The traditional knee replacement surgery process is very complicated. Under pathological conditions, due to the varus and varus of the knee joint, the normal tibiofemoral angle will change, and the mechanical axis of the lower limb will not pass through the center of the knee joint. Preoperative planning for joint replacement and problems that need to be solved by measurement and osteotomy during surgery. Only by calculating and measuring accurate osteotomy can the lower extremity alignment be correctly reconstructed. The traditional measurement and positioning are preoperative X-rays, manually measuring the angle and designing the osteotomy plane. During the operation, a hole is first drilled along the long axis, and then the medullary cavity is enlarged and released. After the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46A61B90/11A61B90/14A61B90/00
CPCA61F2/461A61F2/4657A61B90/11A61B90/14A61B90/06A61F2002/4687A61F2002/4668A61B2090/067
Inventor 黄勇赵加松林砚铭
Owner TEACHING HOSPITAL OF CHENGDU UNIV OF T C M
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