32 results about "Hip total replacement" patented technology

The invention provides a fabrication template system for custom individual artificial total hip replacement operation acetabulum. The system comprises an acetabulum positioning guide plate, a depth control drill and a colored depth indication rod. The acetabulum positioning guide plate comprises a fossa ovalis positioning plate, an acetabulum bottom positioning plate and a depth guide cylinder. The fossa ovalis positioning plate is attached to the fossa ovalis according to the fossa ovalis dissection shape. The acetabulum bottom positioning plate is arranged at the outer edge of the fossa ovalis positioning plate and is attached to the acetabulum cartilage face according to the acetabulum dissection shape. The depth guide cylinder is arranged on the acetabulum bottom positioning plate and performs guide and depth limitation on the depth control drill. The depth control drill performs drill on the acetabulum through the depth guide cylinder, a depth limit ring protruding from the drill is arranged on the body portion of the depth control drill, and the depth limit ring is limited at the end of the depth guide cylinder through the depth guide cylinder. The length of the colored depth indication rod is identical to the drill hole depth, and the colored depth indication rod is inserted into the hole to indicate the depth and direction. By means of the template system, the ideal acetabulum prosthesis arranging position can be obtained, and accordingly, the acetabulum prosthesis can be arranged accurately, and the operation effect is improved.

The invention provides a system for customizing an individualized artificial total hip joint replacement operation femur preparation template. The system comprises a femur neck osteotomy guide plate, a femur prosthesis anteversion and lateral border guide plate, the interior surface of the femur neck osteotomy guide plate is matched with a femur head, a femur neck, and a femur intermediate zone between a greater trochanter and a lesser trochanter in anatomic shape, the femur neck osteotomy guide plate is provided with an osteotomy positioning groove, the bottom of the femur prosthesis anteversion and lateral border guide plate is matched with a femur neck osteotomy surface in shape, the femur prosthesis anteversion and lateral border guide plate comprises a body, a lesser trochanter positioning wing and a front side wing, the lesser trochanter positioning wing and the front side wing are arranged on the body, and the body is provided with an anteversion and lateral border guide groove. According to the invention, the position of the ideal artificial total hip joint femur prosthesis in a human body can be controlled accurately, and furthermore the operation effect can be improved.

The invention provides a hip joint torque measurement system, comprising a fixing device suitable for being fixed on a limb connected with the hip joint to be measured, a strain device fixedly connected with the fixing device, and the strain device is exerted force and passed through the When the fixation device rotates the limb, and thus the femur covered by the limb around the axis of the femur, a uniform strain can be generated, and a measuring device for determining the amount of strain of the strain device. The hip joint torque measurement system of the present invention can measure the moment of the patient's hip joint during the operation, verify the necessity of soft tissue repair of the hip joint, and determine how to perform targeted and effective repair of the patient's soft tissue according to the measurement results , reconstruct the soft tissue balance of the hip joint after surgery, and increase the stability of the hip joint, thereby improving the curative effect of total hip replacement surgery and significantly reducing the postoperative dislocation rate.

The invention discloses a locating device and method for an acetabulum rotating center, relates to a locating device, and particularly relates to a locating device and method for rapidly locating an acetabulum rotating center. The locating device is characterized by comprising a handle and three support legs, wherein a universal joint is arranged at the bottom end of the handle, the support legs are connected with the handle through the universal joint, and the support legs rotate around the universal joint and are of telescopic structures. The locating device for the acetabulum rotating center is scientific in design, simple in structure and convenient to use; and the normally developed acetabulum center at one side is figured out by a computer, and then the lengths of the three support legs of the locating device for the acetabulum rotating center are regulated through a scale, the three support legs are respectively placed on three mark points so that the position of the acetabulum rotating center can be rapidly and accurately located, the accuracy of prosthesis placing is improved, and the success rate of a complex total hip replacement operation is increased.

The invention provides a method and system for acquiring a pelvis posture in a total hip replacement operation. Before the operation, a pelvis static measuring device is used for measuring a front plane of an initial static pelvis to determine an initial posture of the pelvis; during the operation, the initial posture is adopted as a reference, and a pelvis dynamic measuring device is aligned with the pelvis to measure the pelvis posture during the operation in real time. The pelvis static measuring device and the pelvis dynamic measuring device are provided with identical measuring modules, and data acquisition modules are arranged in the measuring modules and comprise motion sensors. The system can be divided into the data acquisition modules, a data processing module and a data transmission module according to functions and can be divided into the pelvis static measuring device and the pelvis dynamic measuring device according to constituent parts, the devices are provided with sensors, sensor data is transmitted to a computer terminal in real time, the pelvis posture is calculated and displayed on the computer, the pelvis posture can be acquired in real time, and the acquired pelvis posture serves as a reference of the hip replacement operation.