5 results about "Tibial osteotomy" patented technology

The application relates to the technical field of orthopedic surgery navigation, and discloses a high-position tibial osteotomy navigation method, a system and a storage medium, and a communication method which comprises the following steps: generating a 3D bone model of a lower limb of a patient based on medical images and performing preoperative osteotomy planning; performing visual positioning system detection and spatial calibration of a surgical instrument; installing an optical marker array, collecting actual bone point cloud data, and realizing alignment of the model and the bone through a registration algorithm; in-surgery real-time calculation and display of deviation of an operation track and planning parameters; post-surgery reconstruction of a lower limb force line, and comparison and evaluation with preoperative planning and in-surgery navigation records. The system comprises a hardware execution unit and preoperative planning, calibration verification, in-surgery registration, real-time navigation and post-surgery evaluation modules. The application realizes full-process integration of preoperative accurate planning, in-surgery real-time closed-loop navigation and post-surgery quantitative evaluation, and significantly improves the precision, repeatability and predictability of clinical effects of surgery.

The application relates to the technical field of medical devices and discloses a high-position tibial osteotomy osteotomy surface planning method and system and a storage medium. The method first reconstructs a three-dimensional model based on medical images, constructs a local anatomical coordinate system and an initial osteotomy plane; then constructs an osteotomy parameter geometric constraint model, processes parameter interaction by using a linear constraint equation, realizes linkage update of an osteotomy position, depth and lateral hinge retention amount and safety threshold boundary control; further establishes a virtual distraction model, performs a lower limb mechanical force line path pre-performance, and performs instrument interference detection based on a signed distance field; and finally generates a navigation protocol. The application effectively avoids the risk of lateral hinge fracture through a parameter linkage mechanism, realizes accurate prediction of force line correction effect and active avoidance of surgical risks by combining virtual kinematics simulation, and improves the accuracy and safety of preoperative planning.

The invention belongs to the field of medical instruments, and provides a tibia osteotomy guide plate and a design method thereof.The tibia osteotomy guide plate comprises a tibia osteotomy guide part, a tibia first attaching part and a tibia second attaching part, and the tibia osteotomy guide part is provided with a tibia osteotomy groove; the tibia first attaching part is connected with the tibia osteotomy guide part, and the tibia first attaching part is provided with a tibia first attaching face used for being attached to a tibia articular face; the second tibia attaching part is connected with the tibia osteotomy guiding part, the second tibia attaching part is provided with a second tibia attaching face used for being attached to the side face of the near end of the tibia, and the second tibia attaching part is provided with a tibia positioning hole; wherein a tibia side anti-skid structure is formed on the tibia first binding surface and / or the tibia second binding surface. The tibia osteotomy guide plate can be stably and accurately attached to the proximal end of the tibia. The tibia osteotomy guide plate is designed according to the preoperative planning scheme confirmed by the doctor through medical-worker interaction, and the design accuracy of the tibia osteotomy guide plate is improved.

The embodiment of the present application discloses a single condyle femur osteotomy instrument and a single condyle femur osteotomy instrument kit. The single condyle femur osteotomy instrument comprises an osteotomy part, a mounting part and an adjusting assembly, the osteotomy part and the mounting part are at least partially inserted between the femur and the tibia, the osteotomy part comprises an osteotomy section and a main body section connected with each other, the osteotomy section is provided with an osteotomy groove, the main body section is movably connected with the mounting part, and the adjusting assembly is used for driving one of the main body section and the mounting part to move relative to the other between the femur and the tibia. The adjusting assembly is connected with the main body section and the mounting part respectively, so that the main body section and the mounting part can move relative to each other between the tibia and the femur, the relative position between the main body section and the mounting part is adjusted until the first supporting surface abuts against the distal end of the femur and the second supporting surface abuts against the tibial osteotomy surface, so that the osteotomy section is adjusted to a suitable position, and the osteotomy requirement of different gaps between the distal end of the femur and the tibial osteotomy surface is met.

The application discloses a tibial osteotomy guide plate, an osteotomy system and a spatial position determination method, and relates to the technical field of medical instruments. The tibial osteotomy guide plate comprises a guide plate body, a plurality of groups of positioning needle nail channels and a first force line verification interface. The guide plate body is provided with a bone contact surface, the shape of the bone contact surface is adapted to the proximal end anatomical morphology of a tibia of a patient, the plurality of groups of positioning needle nail channels penetrate through the guide plate body, and the perpendicular distances from the axes of the groups of positioning needle nail channels to the osteotomy reference plane of the guide plate body are different. The first force line verification interface is arranged on the guide plate body and is configured to be accessible to a force line verification instrument. Based on the technical scheme disclosed by the application, the cumbersome and potential errors of intraoperative multi-hole alignment selection are avoided, the adjustment is more intuitive, accurate and efficient, the final accuracy of force line recovery can be maximally guaranteed, the surgical risk can be reduced, and the consumable cost of a single surgery can be greatly reduced.