35 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.

Techniques and reconstruction systems for ACL repair by providing cross-pin fixation of a graft within a tibial tunnel. The invention provides tibial fixation techniques according to which cross-pin fixation of a graft (for example, an Anterior Tibialis allograft) is achieved on the tibial side, close to the jointline, by a single incision and with cortical fixation.

Techniques and reconstruction systems for ACL repair by providing cross-pin fixation of a graft within a tibial tunnel. The invention provides tibial fixation techniques according to which cross-pin fixation of a graft (for example, an Anterior Tibialis allograft) is achieved on the tibial side, close to the jointline, by a single incision and with cortical fixation.

A method of securing a graft in a bone tunnel, in which graft is secured within the tunnel at both the entrance and the exit ends of the tunnel to provide bicortical fixation of the graft in the bone. Interference screws or other fixation devices are used to secure the graft within the tunnel. For tibial tunnel fixation using an interference screw, the back end of the distal screw is angled so that it closely approximates the angle of the outer tibial tunnel rim. The distal screw is non-cannulated to prevent hematomas from being formed by blood flowing from the tibial tunnel into the surrounding soft tissue. The proximal screw has a restricted cannula to minimize the flow of synovial fluid entering the tibial tunnel. Advantageously, the space between the two screws fills with blood to promote faster healing and incorporation of the graft in the tibial tunnel.

An apparatus and method for fixation of a soft tissue graft. The apparatus may include a member having a first surface and a second surface. Each of the surfaces extend a distance relative to one another. A member is operable to resist movement of the apparatus relative to an anatomical portion. An interference member may be provided to fixedly associate the apparatus with the anatomical structure.

A suture needle construct and method for extracapsular ligament reconstruction in mammals. The joint is first is first explored, and the damaged ligament and meniscus are debrided. The joint capsule is closed and a tunnel is created at the appropriate location in the proximal tibia for tibial fixation. Subsequent to the formation of the tibial tunnel, a suture having a substantially curved needle at one end and a substantially straight needle at the other end is brought in the proximity of the joint. The suture is passed around the lateral fabella using the substantially curved needle, then deep to the patellar ligament using the substantially straight needle, and through the tibial tunnel using the straight needle. The needles are cut off, and the sutures are tensioned over repair site.

A suture needle construct and method for extracapsular ligament reconstruction in mammals. The joint is first is first explored, and the damaged ligament and meniscus are debrided. The joint capsule is closed and a tunnel is created at the appropriate location in the proximal tibia for tibial fixation. Subsequent to the formation of the tibial tunnel, a suture having a substantially curved needle at one end and a substantially straight needle at the other end is brought in the proximity of the joint. The suture is passed around the lateral fabella using the substantially curved needle, then deep to the patellar ligament using the substantially straight needle, and through the tibial tunnel using the straight needle. The needles are cut off, and the sutures are tensioned over repair site.

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 relates to the medicine field, and relates to a measuring system for biomechanical characteristics of a human cadaver knee joint cruciate ligament. The measuring system comprises: hardware such as a positioning robot, a force sensor, a data acquisition card, a visual tracking platform, a computer, a tibial fixing portion, a femur fixing portion; and software such as a force information acquisition module stored in the computer, a positioning robot motion module, and a visual tracking module. The force information acquisition module acquires force information of a knee joint in real time to achieve accurate force control. The positioning robot motion module enables the computer to establish contact with a positioning robot through Ethernet communication, and assists the doctorin performing motion control and acquiring accurate position information of the knee joint. The visual tracking module acquires pose information of Markers on the tibia and femur in real time, and obtains the movement amount and the rotation amount of the knee joint by comparing the pose changes before and after the knee joint motion. The measuring system assists the doctor in performing accurateforce control and motion control, obtains position and posture information of the knee joint, reduces the difficulty of the experimental operation, and improves the accuracy of the experimental results.

Methods for fixation of a soft tissue graft in a bone including: forming in the bone a tunnel defining an entrance opening and an exit opening at opposite ends of the tunnel, the tunnel including an anterior wall surface and a posterior wall surface opposite to the anterior wall surface; positioning the soft tissue graft within the tunnel such that the soft tissue graft extends through both the entrance opening and the exit opening of the tunnel; inserting a graft fixation apparatus into the tunnel and driving spikes of the graft fixation apparatus into the posterior wall surface to mount the graft fixation apparatus to the posterior wall surface of the tunnel such that the graft fixation apparatus is anterior to the posterior wall surface and is not recessed beneath the posterior wall surface; and securing the soft tissue graft inside the tunnel with the graft fixation apparatus.

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.

A fixation plate includes a head section, a curved section, and a tail section. The head section includes one or more head apertures formed therethrough. The head apertures are configured to allow screws to respectively pass therethrough at varying angles to attach the head section to a first bone segment. The head section has a bottom surface that is configured to sit flush with the first bone segment. The curved section extends from the head section. The tail section extends from the curved section. The tail section includes one or more tail apertures formed therethrough. The tail apertures are configured to allow screws to respectively pass therethrough at varying angles to attach the tail section to a second bone segment.

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 relates to a tibia end fixing device in anterior and posterior cruciate ligament reconstruction under a surgical arthroscope. The tibia end fixing device aims at solving the problem that the burden of autogenous tendon cutting is heavy. The tibia end fixing device comprises a wiring harness ring used for connecting muscle tendon in a tibial tunnel and a titanium cable connected with the wiring harness ring, and the outer section, exposed out of the tibial tunnel, of the titanium cable is provided with a lock nut with a gasket in a fitting mode. The wiring harness ring and the titanium cable are connected in the mode that an end ring is woven at the inner end of the titanium cable and the titanium cable is connected with the wiring harness ring through the end ring in a sleeved mode, or in the mode that the wiring harness ring is connected with a U-shaped titanium steel piece in a sleeving mode, and an opening of the U-shaped piece is in rivet connection with the inner end of the titanium cable, or in the mode that the titanium cable of which the middle is dismantled back to form a U shape is connected with the wiring harness ring in a sleeved mode, or in the mode that the inner end of the titanium cable is dismantled back to form a U shape and connected with the wiring harness ring in a sleeved mode, and then the titanium cable and the wiring harness ring are fixed together through a rivet fixing sleeve. The tibia end fixing device has the advantages that the length of the muscle tendon in the tibial tunnel can be shortened, the treatment cost of a patient can be lowered, autogenous tendon cutting is reduced, operative incision does not need to be additionally performed, and operation wound is reduced.

The invention discloses a preposed tibiotalar joint fusion anatomy, locking and compression internal fixation device. The preposed tibiotalar joint fusion anatomy, locking and compression internal fixation device comprises a tibia fixing portion, a deformation portion and an ankle bone fixing portion. The tibia fixing portion, deformation portion and ankle bone fixing portion are connected sequentially. The tibia fixing portion is in arc connection with the ankle bone fixing portion by the deformation portion. The plate angle between the tibia fixing portion and the ankle bone fixing portion is 100-110 degrees. Screw holes vertical to the plate face are formed in a plate of the tibia fixing portion. The width direction of the deformation portion protrudes outwards and widens in an arc shape. Deformation portion locking screw holes are formed in the deformation portion. One side of the locating plane of the plate face of the connecting portion between the ankle bone fixing portion and the deformation portion protrudes outwards. Two locking screw holes are formed in the ankle bone fixing portion plate surface. One axial direction of the locking screw holes is not parallel to the normal direction of the ankle bone fixing portion plate surface. One axial direction near the front outer edge is parallel to the normal direction of the ankle bone fixing portion plate surface. Human engineering fitting design and optimized screw angle are adopted, stress on an internal fixing device is reduced, fixation stability is improved, and a certain function of an ankle joint is reserved.

The invention relates to the field of medicine, and relates to a measurement system for the biomechanical properties of the cruciate ligament of the knee joint of a human body, including hardware such as a positioning robot, a force sensor, a data acquisition card, a visual tracking platform, a computer, a tibial fixation part, and a femur fixation part And software such as the force information acquisition module, the positioning robot movement module and the visual tracking module stored in the computer. The force information acquisition module realizes precise force control by acquiring the force information of the knee joint in real time. The positioning robot motion module connects the computer and the positioning robot through Ethernet communication, assisting the doctor to complete the motion control and obtain the precise position information of the knee joint. The visual tracking module collects the pose information of the Marker on the tibia and femur in real time, and obtains the amount of movement and rotation of the knee joint by comparing the pose changes before and after the knee joint movement. Assist doctors to complete precise force control and motion control, and obtain the position and posture information of the knee joint, reduce the difficulty of experimental operations, and improve the accuracy of experimental results.

The invention relates to the technical field of medical devices, in particular to a device for measuring front-and-back movement of a tibia. The device comprises an instrument frame, a tibia fixator and a patella fixator, wherein patella fixator height adjusting buttons are arranged at the upper ends of the two sides of the instrument frame, a connecting base is arranged on the upper side of the base surface of the instrument frame, a sliding groove is formed in the bottom of the instrument frame, a patella fixator sliding shaft penetrating through the connecting base is arranged in the sliding groove, the bottom of the patella fixator sliding shaft is provided with the patella fixator, and an electronic instrument panel is installed on the portion, on the lower side of the connecting base, of the base surface of the instrument frame. The whole device measures the front-and-back movement of the tibia of a patient with knee joint ligament injuries, an accurate result can be measured simply by requiring that the patient lies on the back, one operator can operate the device, and the device is convenient to use, simple in structure, high in measurement accuracy and relatively high in stability and practicability and has a certain popularization value.

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 relates to a tibial plateau locking bone fracture plate. The tibial plateau locking bone fracture plate comprises a main body used for connecting with a bone body of tibia, wherein the upper end part of the main body is provided with a rear lateral column bone fracture plate which is arranged slantwise relative to the main body and passes through a gap between the tibia and the fibula, the upper end part of the main body is further provided with an external lateral column bone fracture plate which is arranged slantwise relative to the main body, the external lateral column bone fracture plate and the rear lateral column bone fracture plate are arranged in a V shape, and an avoiding groove used for avoiding the joint of the fibula and the tibia is arranged at the joint of theexternal lateral column bone fracture plate and the rear lateral column bone fracture plate. One bone fracture plate is utilized for completing the fixing of the tibia when the external lateral columnand the rear lateral column have fracture simultaneously, the rear lateral column bone fracture plate passes through the gap between the tibia and the fibula, then the contact area with the rear lateral column is guaranteed, meanwhile, the avoiding groove can be used for avoiding the nerves and blood vessels at the joint of the fibula and the tibia, so that the structure of the fibula is not damaged, and further, the injuries caused to the shank are reduced.

The invention discloses an artificial knee joint replacing prosthesis capable of reserving and rebuilding anterior cruciate ligament, in order to solve the problems that the existing artificial knee joint prosthesis technology can not reserve the healthy anterior cruciate ligament of the patient, or that even if reserving the anterior cruciate ligament, the anchoring area of the prosthesis and the tibiae part is reduced and the operation is difficult. The artificial knee joint replacing prosthesis comprises a tibiae platform holding part and a liner, the tibiae platform holding part comprisesa horizontal stand and a fixed connection structure fixedly connecting the horizontal stand and the tibiae, the liner also has a channel for anterior cruciate ligament to pass through, the tibiae platform holding part is provided with a pore passage for penetrating upper and lower surfaces of the horizontal stand of the tibiae platform holding part, the size of the pore passage can be suitable for the imbedded anterior cruciate ligament and adhesive bone block thereof to pass through; the artificial knee joint replacing prosthesis also comprises an anti-disengage structure preventing the imbedded bone block from disengaging. The artificial knee joint replacing prosthesis of the invention not only can reserve or rebuild the anterior cruciate ligament, but also can reserve the large anchoring area, simultaneously the surgery operations is convenient.

The invention relates to a lower limb orthopedic brace, which includes a femoral fixation belt, a tibial fixation belt, and a pair of knee joint protection plates for setting on the inside and outside of the knee joint, and two rigid femoral supports are arranged on the femoral fixation belt Rod, the end is fixedly arranged on the knee joint protection plate, two rigid tibial support rods are arranged on the tibial fixation belt, and the end is pivotally arranged on the knee joint protection plate, the tibial support rods The end includes a short shaft perpendicular to the rod body, and each of the knee joint protection discs includes a J-shaped chute for receiving the short shaft at the end of the tibial support rod. The invention has a light and handy structure, can effectively correct, support and protect the local diseased part, and can eliminate joint movement hindrance to the greatest extent, and promote the recovery of the local diseased part. In addition, a method for manufacturing lower limb orthopedic braces is proposed, which can precisely customize the braces according to their own joint and bone characteristics according to individual differences of patients.

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.

A fixation plate includes a head section, a curved section, and a tail section. The head section includes one or more head apertures formed therethrough. The head apertures are configured to allow screws to respectively pass therethrough at varying angles to attach the head section to a first bone segment. The head section has a bottom surface that is configured to sit flush with the first bone segment. The curved section extends from the head section. The tail section extends from the curved section. The tail section includes one or more tail apertures formed therethrough. The tail apertures are configured to allow screws to respectively pass therethrough at varying angles to attach the tail section to a second bone segment.

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.