An orthopedic intelligent osteotomy navigation device and its application method

Abstract

The invention relates to an orthopedic intelligent osteotomy navigation device and a use method thereof. The orthopedic intelligent osteotomy navigation device comprises a motion sensing unit for acquiring and recording motion acceleration and motion angular velocity data of the lower limbs of a patient in real time, a central processing unit for converting the acquired data into the direction pointed by the osteotomy navigation device and the angle formed by lower limb force lines and calculating an offset angle of the osteotomy navigation device, a communication module for transmitting the angle information transmitted by the central processing unit to a near-field mobile device, and a laser positioning module for projecting linear laser on the surface of the bone to be cut to form a bone cutting indication mark. By adopting the orthopedic intelligent osteotomy navigation device, a bone cutting angle can be rapidly tracked in real time during an operation, bone cutting guidance is further carried out through a laser positioner, simple, convenient, accurate and efficient bone cutting can be achieved, accordingly the satisfaction degree of the installation position of a prosthesis is improved, thus the stress of an artificial joint after installation is more reasonable, the abrasion is reduced, the service life of the joint is prolonged, the renovation rate is reduced, and the long-term effect of joint replacement is improved.

Description

technical field [0001] The invention relates to an osteotomy navigation device, in particular to an orthopedic intelligent osteotomy navigation device based on a motion sensor and a usage method thereof. Background technique [0002] In orthopedic clinics, joint surgery has developed rapidly, and joint replacement is currently the main treatment for severe arthritis. In the field of joint surgery, joint replacement technology continues to be popularized and gradually applied in primary hospitals, but the long-term effect after joint replacement depends on many factors, including artificial joint design, intraoperative prosthesis installation, soft tissue balance, postoperative rehabilitation, etc. The most important factor is the installation of the prosthesis during the operation. Before the installation of the prosthesis, osteotomy of the articular surface is required, mainly referring to the femoral condyle osteotomy and tibial plateau osteotomy of the knee joint. [000...

AI Technical Summary

Problems solved by technology

At present, the more common method is to locate by anatomical landmarks and install a complex osteotomy guide. However, in the actual installation process, due to the influence of deformity and instrument fixation, there are often certain errors. The main reason is that the virtual bone cannot be determined during the operation The line of force of the lower limbs, because the line of force of the lower limbs is different from the anatomical axis, it is a virtual force direction, so there is currently no reasonable way to confirm it

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