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Tibial osteotomy positioning device

A positioning device and osteotomy technology, which is applied in the direction of bone drill guidance, medical science, surgery, etc., can solve the problems of the effect of surgery, the inability to accurately locate and determine the angle of tibial plateau interception, etc., so as to reduce the risk of surgical failure and reduce the The probability of secondary damage, the effect of good orientation

Active Publication Date: 2020-09-04
天衍医疗器材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In artificial knee arthroplasty, it is first necessary to perform osteotomy on the upper end of the tibia to obtain the tibial plateau on which the artificial prosthesis is installed. The position of the tibial osteotomy is determined by the positioning method of the tibial insertion point of the anterior cruciate ligament, and the osteotomy angle of the posterior tilt of the tibial plateau is determined according to the visual observation and clinical experience during the operation. Therefore, the existing methods cannot accurately locate and determine the tibial plateau The angle of interception of the inclination has a certain influence on the surgical effect

Method used

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  • Tibial osteotomy positioning device
  • Tibial osteotomy positioning device

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Embodiment

[0026] Example: see Figure 1-10 , in the present invention, a tibial osteotomy positioning device includes a bracket 1, the bracket 1 is a V-shaped opening, and is used to place the ankle during the operation. One end of the bracket 1 is provided with a twist cap 2, and the twist cap 2 is the lower end The open and hollow cylindrical structure is used to place the torsion spring 3 inside. The torsion spring 3 is arranged in the torsion cap 2. The torsion cap 2 passes through the fixing pin 18. One end of the torsion spring 3 is clamped in the fixing pin 18. The fixing pin 18 It is an elliptical cylinder, passing through the bracket 1, and there will be no relative movement with the bracket 1. A ratchet 4 is sleeved on the fixed pin 18. Relative rotation can occur between the ratchet 4 and the fixed pin 18. One end of the ratchet 4 is connected with a clip. It is integrally formed with the ratchet 4, and the clip is used to assist in holding the ankle tightly. There is a press...

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Abstract

The invention discloses a tibial osteotomy positioning device. The tibial osteotomy positioning device comprises a bracket, wherein torsional caps are arranged at one end of the bracket, a torsional spring is arranged in each of the torsional cap, a fixing pin penetrates through the inner part of each torsional cap, a ratchet wheel sleeves the corresponding fixing pin, a clip is connected to one end of each ratchet wheel, pressing rods are arranged in the bracket, a guide block is arranged at the other end of the bracket, a cup head pin and a No.1 button are arranged in the guide block, a connecting shaft is arranged at the other end of the guide block, a connecting block is arranged at the other end of the connecting shaft, a No.2 button is arranged in the connecting block, a sleeve is arranged at the upper end of the connecting block, a positioning rod and a locking rod are arranged in the sleeve, a No.3 button is arranged at the upper end of the locking rod, and a No.4 button is arranged at the upper end of the sleeve. The tibial osteotomy positioning device can accurately position and determine the cutting off angle of a back rake angle of a tibial platform, and errors caused by that during an artificial knee replacement surgery, the angle of the back rake angle of the tibial platform is determined by naked eyes, can be avoided.

Description

technical field [0001] The invention relates to the field of artificial knee joint replacement, in particular to a positioning device for tibial osteotomy. Background technique [0002] With the continuous development of medical technology, artificial knee replacement surgery has become one of the routine treatment methods for knee joint lesions. According to statistics, the clinical excellent rate over 10 years is over 90%. Artificial knee replacement surgery is the use of artificial knee joints to replace and reconstruct damaged joints to relieve symptoms, eliminate pain, restore and improve joint function, and improve quality of life. Symptoms such as osteoarthritis, stiffness, or rheumatoid arthritis with difficulty in moving can be significantly relieved or eliminated, the range of motion of joints can be improved to a certain extent, and the appearance of deformed limbs can be significantly improved. Nowadays, artificial joint replacement technology has been accepted ...

Claims

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Application Information

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IPC IPC(8): A61B17/16A61B17/17A61B90/70
CPCA61B17/1657A61B17/1732A61B17/1739A61B90/70A61B17/1775
Inventor 周海利
Owner 天衍医疗器材有限公司
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