33 results about "Tibial fixation" patented technology

A knee joint prosthesis is provided for implanting on the tibial plateau and femoral condyle of the knee. The prosthesis includes a tibial prosthesis having a tibial fixation surface on the tibial prosthesis adapted to be positioned on the tibial plateau. The tibial fixation surface has at least one tibial attachment means for securing the tibial prosthesis to the tibial plateau. It further includes a femoral prosthesis having a femoral fixation surface adapted to be positioned on the femoral condyle. The femoral fixation surface has at least one femoral attachment means for securing the femoral prosthesis to the femoral condyle. The prosthesis further includes a bearing member supported by the tibial prosthesis for engaging the femoral prosthesis in weight bearing relationships.

The invention provides a knee joint rehabilitation evaluation system based on a cloud platform. The knee joint rehabilitation evaluation system comprises a knee joint brace, a muscle force measurer, the cloud platform and a patient mobile terminal, wherein the knee joint brace comprises a femur fixing end, a tibia fixing end and a rotating shaft device connecting the femur fixing end and the tibiafixing end; a positioning sensor and an attitude sensor are respectively arranged at the femur fixing end and the tibia fixing end; and a joint motion degree dial plate is arranged on a rotating shaft. The invention further provides a rehabilitation evaluation method. A knee flexion and extension angle [alpha]1 is obtained by the joint motion degree dial plate according to a rotating angle of therotating shaft; an internal and external rotation angle [alpha]2 of the knee is obtained according to the data obtained by the positioning sensor and the attitude sensor and the data of a fixed arm;muscle force N is obtained through measuring of the muscle force measurer; and the data of the flexion and extension angle [alpha]1, the internal and external rotation angle [alpha]2 and the muscle force N are uploaded to the cloud platform through the patient mobile terminal. The measurement method provided by the invention is simple and convenient to operate and high in accuracy.

The invention relates to a knee joint ligament injury assessment device and a method thereof. The device comprises a housing, a rotating rod, a pull rod, a knee fixation device, a tibial fixation device, an angle acquisition device, a tension acquisition device, a posture data acquisition device and a processor; the tension acquisition device collects a current lifting force value corresponding toeach moment of a first test; the angle acquisition device collects a current angle value corresponding to each moment of the current first test; the attitude data acquisition device collects the current attitude data corresponding to each moment of a current second test; the processor uses the current lifting force value, the current angle value, and a knee anteroposterior cruciate ligament classification evaluation standard to determine the knee anteroposterior cruciate ligament injury evaluation result; and the current posture data and the knee joint collateral ligament classification evaluation standard are used to determine the evaluation results of knee joint collateral ligament injury. The accuracy of the knee ligament injury evaluation result and the convenience of the knee ligament injury evaluation test can be improved.

The invention provides a fibula transverse bone carrying external fixing frame device which comprises a fibula carrying device, a tibia fixing device and a connecting device, the fibula carrying device drives a fibula carrying frame to move synchronously through movement of an adjusting device, position deviation of bone blocks of a fibula osteotomy section is achieved, the tibia fixing device comprises a tibia fixing frame and a deviation rectifying adjusting device, the deviation rectifying adjusting device can adjust the fixing positions of the tibia fixing frame and the connecting device, and the fibula carrying device and the tibia fixing device are connected through the connecting device. The invention further provides a using method of the fibula transverse bone carrying external fixing frame device. Only the fixing fulcrum is arranged on the tibia; the number of wounds on the tibia side is reduced; the bearing capacity of the tibia after operation is not affected, meanwhile; bone carrying operation is conducted on the fibula side; transverse fibula carrying is achieved; the fibula is located in the deep layer of skin fascia; muscle groups in front of and behind the fibula are wrapped; and a richer capillary basis is provided for bone carrying at the fibula end; and the blood supply repairing effect is better.

A combined fixator for femoral and tibial comprises a femoral fixation bracket, a tibial fixation bracket and an articulation mechanism, wherein the femoral traction pin fixator comprises a femoral traction pin clip seat, a first bolt and a first positioning insertion plate, wherein a first deformation groove is arranged on the inner wall of the femoral traction pin clip hole of the femoral traction pin clip seat; A first positioning groove is arranged on the outer wall of the femoral traction needle, the first positioning plug plate is positioned in the first deformation groove and cooperatively inserted with the first positioning groove, or/and the tibial traction pin holder includes a tibial traction pin holder, a second bolt and a second positioning insert plate, wherein a second deformation groove is arranged on the inner wall of the tibial traction pin clip hole of the tibial traction pin clip base, a second positioning groove is arranged on the outer wall of the tibial tractionpin, and the second positioning insert plate is positioned in the second deformation groove and cooperatively inserted with the second positioning groove. The combined fixator for femoral and tibial can solve the problems of axial displacement or rotational loosening of the femoral traction needle and the tibial traction needle in the prior art.

The present invention relates to a knee joint rehabilitation instrument. The knee joint rehabilitation instrument of the present invention includes a thigh fixing unit into which a thigh of a leg requiring rehabilitation is inserted and thereby fixed; a shin fixing unit which is disposed next to the thigh fixing unit and into which a shin of the leg requiring rehabilitation is inserted and thereby fixed; and a knee position guide which is disposed between the thigh fixing unit and the shin fixing unit and guides a position of a knee when inserting the leg requiring rehabilitation into the thigh fixing unit and the shin fixing unit.

The invention discloses a posterior cruciate ligament lower dead center positioner. The positioner comprises a positioner handheld part, a tibia fixing part, a guide sleeve, a depth limiting sleeve and a depth limiting drill bit, the whole handheld part of the positioner is in an arc-shaped handle shape. A hollow wire channel is formed in the upper part; the outlet of the hollow wire channel is positioned at the vertex of the handheld part of the positioner; three fixing holes with the inner diameter of 2.00 mm are formed in the rear end of the positioner fixing part and used for fixing the positioner to the tibia cortex, the positioner tibia fixing part is an arc with the diameter of 11 cm, and the upper end of the positioner tibia fixing part slides into the sliding rail of the positioner handheld part and is locked and fixed by screws on the sliding rail at the same time. The posterior cruciate ligament graft can be quickly and safely built on the premise that an inner posterior approach is not built, the posterior cruciate ligament graft can be easily pulled into the femur and the tibia bone tunnel, the operation time can be shortened, the operation safety and repeatability canbe improved, the operation difficulty can be reduced, and the learning curve of young doctors can be shortened.

The invention discloses a knee joint training device. The knee joint training device comprises a supporting frame, a power device, two thighbone fixing plates and two tibia fixing plates, wherein thepower device is installed on the supporting frame, the two thighbone fixing plates are connected through a fixing plate connecting frame, and one thighbone fixing plate is fixedly connected with the supporting frame. The two tibia fixing plates are located between the two thighbone fixing plates, and are connected with the thighbone fixing plates through connecting rods, and the connecting rods penetrate through the tibia fixing plates and the thighbone fixing plates. One tibia fixing plate is connected with the power device through a transmission rod; Arc-shaped grooves are formed in the twothighbone fixing plates, idler wheels are installed at the two ends of each connecting rod, and the tibia fixing plates make concentric rotational motion relative to the thighbone fixing plates. The thighbone fixing plates are fixed to the thighs of a patient, the tibia fixing plates are fixed to the shanks of the patient, the rotation center of the device is adjusted to be aligned with the knee joint rotation center of the patient, thus knee joint movement is formed, and the aim of training the functions of the knee joints is achieved.

The invention provides an ankle joint anterior fusion distraction osteotomy device, which is composed of a distal tibia fixation module and a sliding gap distraction module. The anterior and posteriorsurfaces of the distal tibial fixation module are provided with a plurality of vertical fixation needle tracks which are parallel to each other, and an oblique fixation needle track which is at an angle with the direction of the vertical fixation needle tracks; the distal tibial fixation module and the sliding gap distraction module are fitted through a slider slot and can be locked after slidingadjusting is in place. The sliding gap distraction module has a distraction arm with a space between the distraction arms to accommodate the passage of the osteotomy instrument. After the distal tibial osteotomy is completed, the invention is used for expanding the ankle joint space, determining the distraction distance of the ankle joint space and the osteotomy plane of the upper talus accordingto the completed distal tibial osteotomy plane of the patient, maintaining the space and the relative position between the distal tibial osteotomy plane and the upper talus, and facilitating the upper talus osteotomy.

The invention relates to the technical field of tibia fixing devices, and in particular relates to a tibia proximal fixing device for knee replacement surgery. The device includes a supporting steel plate and screws, the supporting steel plate is composed of a bone end supporting steel body, a backbone supporting steel body and an extension part, the bone end supporting steel body is provided witha first positioning hole, the backbone supporting steel body is provided with a second positioning hole, the bone end supporting steel body and the backbone supporting steel body are provided with screw holes, the outer end openings of the first positioning hole and the second positioning hole are provided with a positioning hole cap respectively, and the outer end opening of each screw hole is provided with a bolt hole cap. The device has the following beneficial effects: when the screws are connected with the supporting steel plate, the head end part of each screw is in fit connection withthe inner wall of each screw hole through a bolt, the supporting steel plate is connected and supported by the head end of each screw to make the supporting steel plate and the bone surface have no pressure effect, so that the wear of the steel plate on the surfaces of a tibia and a backbone is effectively reduced; and the supporting steel body is provided with the positioning hole caps and bolt hole caps, so that the surface of the supporting steel plate is smooth, and secondary damage to tissue by the head end of the bolt is avoided.

The invention discloses a medical instrument tibia bone fracture plate for an orthopedic surgery. The medical instrument tibia bone fracture plate comprises a bone fracture plate body, front face endmain fixing holes are fixedly formed in the two ends of the front face of the bone fracture plate body in a penetrating mode, front face end auxiliary fixing holes are formed in the positions, locatedon the two sides of the front face end main fixing holes, of the two ends of the front face of the bone fracture plate body in a penetrating mode, front face middle main fixing holes are symmetrically formed in the middle of the front face of the bone fracture plate body in a penetrating mode, front face middle auxiliary fixing holes are symmetrically formed in the positions, on the two sides ofthe front face middle main fixing holes, of the middle of the front face of the bone fracture plate body in a penetrating mode, side face end main fixing holes are formed in the two ends of the side face of the bone fracture plate body in a penetrating mode, and side face middle main fixing holes are symmetrically formed in the middle of the side face of the bone fracture plate body in a penetrating mode. The medical instrument tibia bone fracture plate has the advantages that the structure is simple and reasonable, the design is novel, and the higher tibia fixing firmness is realized in the tibia bone fracture aspect.

Embodiments of the present invention are directed to a ligament repair system and method. A ligament repair system may include one or more of a femoral sight assembly, a tibial sight assembly, a femoral fixation assembly, and a tibial fixation assembly.