Angle measurement device and method for tibial osteotomy in total knee replacement

A technology of total knee replacement and angle measurement device, which is applied in the fields of surgery, medical science, diagnosis, etc., can solve the problems of unstable positioning, complicated operation, and many instruments used, so as to improve measurement stability, improve operation efficiency, reduce random effect

Pending Publication Date: 2018-08-28
AIQIAO SHANGHAI MEDICAL TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The error is relatively large, the accuracy depends on the doctor's experience, and there are many and complicated instruments used
[0004] Patent CN206333970U discloses a knee joint tibial osteotomy positioning guide plate device, although it is more accurate than using some simple knee joint tibial osteotomy positioning guide plate devices to determine the angle of tibial osteotomy in the past, but the ankle clip is used to control varus and varus The error of the back tilt

Method used

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  • Angle measurement device and method for tibial osteotomy in total knee replacement
  • Angle measurement device and method for tibial osteotomy in total knee replacement
  • Angle measurement device and method for tibial osteotomy in total knee replacement

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Embodiment Construction

[0035] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0036] In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size, thickness and ratio of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0037] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, an angle measurement device for tibial 4 osteotom...

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Abstract

The invention discloses an angle measurement device and method for tibial osteotomy in total knee replacement, and belongs to the field of medical apparatus systems. The angle measurement device comprises a positioning tool positioning a lower extremity force line of a patient, an osteotomy tool, an angle measurement part measuring the front inclination angle and the back inclination angle of tibial osteotomy in total knee replacement and a computer system; the positioning tool comprises three rigid rods, and the three rigid rods are the first rod, the second rod and the third rod in sequence;the angle measurement part comprises a motion sensor, a processor for processing motion-sensor data and a wireless information transmission part. By means of the angle measurement device and method for tibial osteotomy in total knee replacement, a front inclination angle value and a back inclination angle value of tibial osteotomy can be accurately computed, and are visually displayed on a display to assist doctors in tibial osteotomy; the previous measurement randomness and conditions of relying on surgeon experiences are reduced, the measurement reliability is improved, and surgery efficiency is also improved.

Description

technical field [0001] The invention relates to the field of medical instrument systems, in particular to an angle measuring device and method for tibial osteotomy in total knee arthroplasty. Background technique [0002] Traditional total knee arthroplasty is very complicated. In pathological conditions, due to the varus / valgus of the knee joint, the normal tibial angle changes, resulting in a shift in the line of force of the lower extremity. This is exactly what the preoperative plan for knee arthroplasty is. And problems that need to be solved by measurement and osteotomy during surgery. Only by calculating and measuring the accurate osteotomy angle can the lower extremity line of force be correctly reconstructed. Reconstructing a good alignment of the lower limbs has always been one of the main purposes of total knee arthroplasty. The postoperative satisfaction of patients with total knee arthroplasty and the service life of the prosthesis largely depend on a good alig...

Claims

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Application Information

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IPC IPC(8): A61B90/00A61B17/16
CPCA61B90/06A61B17/1657A61B17/1675A61B2090/067
Inventor 常涛李广勇葛银明何文文
Owner AIQIAO SHANGHAI MEDICAL TECH CO LTD
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