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Hip joint torque measuring system

A technology of torque measurement and hip joints, applied in diagnostic recording/measurement, medical science, sensors, etc., to improve curative effect, reduce postoperative dislocation rate, and increase stability

Inactive Publication Date: 2015-04-08
山东大学齐鲁医院(青岛)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is no tool for measuring the torsional force after intraoperative posterolateral soft tissue repair of the hip joint. In view of this, the inventor invented and produced the hip joint torque measurement system of the present invention

Method used

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  • Hip joint torque measuring system

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Experimental program
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Embodiment

[0038] This embodiment provides a hip joint torque measurement system, such as Figure 1-6 As shown, it includes a fixing device suitable for being fixed on the limb connected with the hip joint to be tested, a strain device fixedly connected with the fixing device, the strain device is exerted force and rotates the limb through the fixing device, and Further, when the femur covered by the limb rotates around the axis of the femur, a uniform strain can be generated, and the measuring device 5 for determining the strain amount of the strain device can be generated.

[0039] The fixing device includes a first fixing plate 1 and a second fixing plate that can be fixedly clamped on the left and right sides of the knee joint connected to the limb through a connecting structure, and at the same time clamp a part of the thigh part and the calf part connected to the knee joint. Two fixing plates 2 are used to ensure that the rotation angle of the fixing device is synchronized with the...

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Abstract

The invention provides a hip joint torque measuring system which comprises a fixing device, a strain device and a measuring device, wherein the fixing device is suitable for being fixed on a limb connected with a hip joint to be measured; the strain device is fixedly connected with the fixing device; when the strain device is applied with a force, rotates the limb via the fixing device and then drives the thigh bone in the limb to rotate around the axis of the thigh bone, the strain device can generate homogeneous strain; and the measuring device is used for measuring the strain capacity of the strain device. The hip joint torque measuring system provided by the invention can measure the moment condition of the hip joint of a patient during an operation to verify the reconstruction necessity of the soft tissue of the hip joint, and can determine how to specifically and effectively reconstruct the soft tissue of the patient according to measurement results to reconstruct the soft tissue balance of the hip joint of the patient after the operation and increase the stability of the hip joint. Therefore, the hip joint torque measuring system can improve the curative effect of a total hip joint replacement operation and remarkably reduce the post-operation dislocation rate.

Description

technical field [0001] The invention relates to a hip joint torque measurement system, which belongs to the technical field of hip joint torque measurement. Background technique [0002] At present, the most commonly used posterolateral approach has many advantages in hip replacement surgery, such as less soft tissue damage, simple operation, clear acetabulum exposure, better protection of abductor muscles, low incidence of heterotopic ossification, The postoperative recovery is good, etc., which makes the posterolateral approach more and more widely used. However, compared with other surgical approaches, the rate of joint dislocation after posterolateral approach is relatively high. [0003] Various repair and evaluation methods in the prior art usually artificially limit the patient's body position and range of motion after the operation. Postoperative rehabilitation has the disadvantages of long time and slow effect, which not only brings pain to the patient, but also t...

Claims

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Application Information

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IPC IPC(8): A61B5/107A61B5/103
CPCA61B5/107A61B5/1121
Inventor 张鹏孔杰杜建春高升焘
Owner 山东大学齐鲁医院(青岛)
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