Method and system for acquiring postures of acetabular bone and femoral head in novel hip arthroplasty

Abstract

The invention discloses a method and a system for acquiring posture of an acetabular bone and a femoral head in novel hip arthroplasty. The method comprises the following steps of: setting pressure sensors and / or touch sensors and an image sensor on a femoral head false test mould to form a sensor array; acquiring the contact and stress condition and position information of the femoral head false test mould and acetabular bone by the sensor array, and sending a signal; and receiving the signal by a receiving end, and displaying the received signal on a display module, so as to acquire the analogue postures of the acetabular bone and the femoral head. The system comprises the sensor array, a necessary external circuit and a signal receiving and displaying device for receiving and displaying the signal emitted by the external circuit. According to the invention, the existing posture of the femoral head false body can be accurately simulated during the hip arthroplasty, so that a doctor can intuitively see the position and movement status of the femoral head false body during the hip arthroplasty, and further, the success rate and the surgical treatment of the hip arthroplasty can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of medical electronics, and in particular relates to a novel method and system for acquiring attitudes of acetabulum and femoral head in hip replacement. Background technique [0002] Since the 1960s, artificial joint replacement has gradually developed in my country and has become a blessing for countless patients with joint diseases. Taking hip replacement as an example, the first indication is osteoarthritis, followed by aseptic necrosis of bone (such as femoral head necrosis, etc.), some hip fractures (such as femoral neck fracture), rheumatoid joint Inflammation, traumatic arthritis, benign and malignant bone tumors, ankylosing spondylitis, etc., are widely used. Coupled with today's aging population, the number of patients with osteoarthritis is on the rise, and more and more artificial joint replacement operations are performed in hospitals every year. [0003] However, there is still room for impro...

AI Technical Summary

Problems solved by technology

[0003] However, there is still room for improvement in hip replacement surgery

In today's hip replacement surgery, the process of inserting the femoral head prosthesis into the acetabulum depends entirely on the surgeon's experience. The doctor cannot intuitively see the movement of the femoral head prosthesis in the acetabulum, and cannot accurately Confirm that the femoral head prosthesis is in place in the acetabulum

If the installation position of the prosthesis is not correct during the replacement, it may lead to limited movement of the patient after surgery or dislocation of the pseudo-joint. In the light case, the long-term uneven force on the prosthesis will accelerate wear and tear, resulting in a shortened service life of the prosthesis. reduce

Generally speaking, a successful artificial hip replacement operation can provide patients with artificial hip replacement for 20 years or even longer; The service life will be sharply reduced to 7-8 years or even shorter

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