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Total knee replacement pressure balance measuring system

A technology of artificial knee joint and measurement system, which is applied in the field of pressure balance measurement system to achieve the effects of ensuring accuracy, avoiding stress concentration and improving success rate

Active Publication Date: 2010-11-17
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, in the operation process, the method for doctors to judge the pressure balance of artificial knee joint implantation is only based on experience, which not only limits the number of doctors who perform artificial knee joint implantation surgery, but also brings certain challenges to artificial knee joint replacement surgery. risks and uncertainties

Method used

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  • Total knee replacement pressure balance measuring system
  • Total knee replacement pressure balance measuring system
  • Total knee replacement pressure balance measuring system

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] figure 1 Is the schematic diagram of the artificially implanted pseudo-joint model. Such as figure 1 As shown, the doctor removes the damaged part of the joint between the patient's femur and tibia and replaces it with an artificial knee joint, thereby completing the replacement of the artificial knee joint.

[0020] figure 2 It is a schematic diagram of the pressure balance measurement system for artificial knee replacement of the present invention. The pressure balance measuring system includes a pressure acquiring device and a signal receiving and displaying device. During the operation, the doctor puts the pressure acquisition device between the patient's femoral prosthesis and tibial prosthesis to obtain the pressure signal, and sends the pressure signal to the signal receiving and display device in a wireless manner, thereby providing real-time information for the doctor. Pressure distribution and pressure value.

[0021] In another embodiment of the present...

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Abstract

The invention relates to a total knee replacement pressure balance measuring system, which comprises a pressure acquiring device and a signal receiving and displaying device. The shape and dimension of the pressure acquiring device are the same as those of a tibia gasket in artificial knee prosthesis, and the pressure acquiring device is arranged at the knee joint of a patient during the operation so as to acquire a pressure signal and transmit the pressure signal to the signal receiving and displaying device. The signal receiving and displaying device performs force processing on the received pressure signal and displays the pressure distribution condition in a form of a three-dimensional pressure diagram so as to provide the stress condition at the tibia gasket of the artificial knee joint for a doctor in real time. The pressure acquiring device is arranged at the knee joint of the patient during the operation so as to acquire the pressure signal and is taken out after the pressure is balanced, and a proper tibia gasket is put at the knee joint of the patient. The total knee replacement pressure balance measuring system can be widely applied to the total knee replacement.

Description

technical field [0001] The invention relates to a pressure balance measurement system, in particular to a pressure balance measurement system during artificial knee replacement surgery. Background technique [0002] With an increasingly aging population, the number of patients with knee osteoarthritis is on the rise, and hospitals are performing more and more artificial knee replacements each year. Artificial knee replacement surgery solves the problems of aging or necrosis and loss of function of the knee joint for patients, relieves the pain of the patient, and greatly improves the quality of life of the patient. [0003] However, after the artificial knee joint is implanted into the human body, due to long-term exercise stress, it is prone to problems such as wear of the tibial prosthesis spacer, osteolysis, and the like. Successful artificial knee replacement surgery can provide patients with artificial knee replacement for ten to twenty years or even longer; unsuccessf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/22
Inventor 陈虹刘鸣张春唐竞周一新王志华
Owner TSINGHUA UNIV
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