16 results about "Total knee replacement" patented technology

An orthopaedic surgical instrument system includes a sensor adapter and multiple surgical instruments. The sensor adapter includes a housing with a force sensor positioned within the housing and a sensor contact configured to transfer force to the force sensor extending from the housing. Each surgical instrument includes a sensor connector configured to receive the sensor adapter at a predetermined location relative to the surgical instrument. Each sensor adapter further includes a registering feature to engage an anatomical feature of a patient or another surgical instrument. The surgical instruments may include a shim that may be attached to a gap assessment tool or a tibial insert trial. Methods associated with the surgical instrument system are also disclosed.

This invention relates to a patient positioner and, more specifically, to an articulated armature configured to position a leg and knee at a precise angle, as needed in unicompartmental knee arthroplasty surgery. The positioner is adapted to connect to either side rail of a support table, without changing orientation, via drop pins disposed in a socket clamp. The socket clamp may couple to a ball coupled to a first arm and elbow joint, which in turn may couple to a second arm and wrist joint, which in turn may couple to a pad assembly adapted to hold the patient's thigh, thereby positioning the lower leg to dangle over the side or end of an operating table. The positioner is adapted for ease of disassembly, sterilization, and reassembly. The invention may be exchanged for a total knee replacement positioner without moving the patient or breaking the sterile field.

The utility model provides a tibial platform visualization device and operation navigation positioning system, tibial platform visualization device includes: registration tracking part, is used for on tibial platform sliding or point selects the characteristic point of different position on tibial platform, registration tracking part has first tracker, visualization tracking part, is used for installing on tibial platform clamping part, visualization tracking part has second tracker, control part, control part obtains the position information of registration tracking part when different position on tibial platform through first tracker, and obtains the position information of visualization tracking part through second tracker. The tibial platform visualization device can effectively solve the technical problem that tibial platform prosthesis is difficult to realize accurate positioning in the total knee arthroplasty process under the assistance of the orthopedic operation navigation positioning system in the prior art.

Methods and systems for identifying and determining the size and orientation of a reamed portion of a patient's bone are disclosed. A tracking array and / or a point probe can be inserted into an adapter device. The adapter device includes a plurality of openings with various connection means therein such that when a tracking array is inserted into the adapter, a secure and stable connection is created. A reamer, a handle, or similar tool can then be inserted into the opposite side of the adapter during which a secure and stable connection is established between the adapter and the tool. Thus, a more accurate representation of a patient's anatomy can be obtained through the use of a computer-assisted surgical system.

The utility model provides a distraction device for total knee replacement surgery. The distraction device comprises a first holding distraction component, a second distraction component and a second holding component, wherein the first holding distraction component comprises a first distraction part used for distraction of a knee joint, a first holding part used for holding and a first connecting part used for connecting the first distraction part and the first holding part; the second distraction component comprises a second distraction part for distraction of the knee joint, a pushed part and a second connecting part for connecting the second distraction part and the pushed part; the second holding component comprises a second holding part used for holding, a pushing assembly used for pushing the pushed part to enable the first distraction part and the second distraction part to be distraction, and a third connecting part connected with the second holding part. The first connecting part, the second connecting part and the third connecting part are mutually hinged; the dilator further comprises a locking assembly used for locking the first distraction part and the second distraction part in the distraction state, and the locking assembly is fixedly installed on the first connecting part.

A system of patient-matched and surgeon-specific single use surgical instruments designed for five different applications for knee replacement surgeries; primary total knee replacement, custom-made total knee replacement, revision total knee replacement, hinged total knee replacement and partial knee replacement. The system has patient-matched & surgeon-specific instruments are designed & prepared for each case based on patient's need and surgeon's demand. The system contains patient-matched set of blocks and guides, “On-Demand” surgeon-specific Instruments sets, conventional instruments sets, surgical planning software, 3D printing Software, 3D printers and sterilization unit. All the system components are manufactured by using 3D printing technologies.

The utility model relates to a total knee arthroplasty tibia osteotomy guide plate and osteotomy assembly.The total knee arthroplasty tibia osteotomy guide plate comprises a guide plate body, a guide block and a positioning claw are arranged on the guide plate body, and the extension direction of the guide block corresponds to the direction of a connecting line of a tibia intercondylar ridge and a posterior cruciate ligament dead point; the positioning claw comprises a binding face, the binding face corresponds to a tibia platform, and a tibia front binding face is arranged on the guide plate body. An osteotomy groove used for performing osteotomy on the proximal tibia is formed in the guide plate main body, a fixing hole is formed in the lower part of the osteotomy groove, and the fixing hole is formed in the side wall of the guide plate main body in a penetrating manner. The osteotomy guide plate positioning device can ensure the accuracy and stability of osteotomy guide plate positioning, avoids the defects caused by one-time cutting in a traditional operation, reduces learning curves of doctors, and is simple and practical.

A knee rehabilitation active motion machine (KRAM) and method of use. The KRAM provides key benefits for users after undergoing knee replacement or other surgeries. Studies have indicated that pedaling and balance exercises provide better recovery for total knee replacement patients. The adjustable features of a pedaling unit and a moving assembly allow the user to use the KRAM through the entirety of their rehabilitation process. For post-surgery rehabilitation, users will be able to adjust the KRAM parameters to limit their desired flexion and extension due to stiffness or soreness. As rehabilitation progresses, users can electronically increase the flexion and extension angles they can achieve, all the way to a full range of motion of approximately 135 degrees maximum flexion and full extension of approximately 20 to 0 degrees.

This invention relates to a patient positioner and, more specifically, to an articulated armature configured to position a leg and knee at a precise angle, as needed in unicompartmental knee arthroplasty surgery. The positioner is adapted to connect to either side rail of a support table, without changing orientation, via drop pins disposed in a socket clamp. The socket clamp may couple to a ball coupled to a first arm and elbow joint, which in turn may couple to a second arm and wrist joint, which in turn may couple to a pad assembly adapted to hold the patient's thigh, thereby positioning the lower leg to dangle over the side or end of an operating table. The positioner is adapted for ease of disassembly, sterilization, and reassembly. The invention may be exchanged for a total knee replacement positioner without moving the patient or breaking the sterile field.

The embodiment of the invention is suitable for the technical field of computer-aided medical treatment, and provides an orthopedic surgery robot system and an orthopedic surgery intra-operative planning method, the system is connected with a pressure sensor, and the system comprises a data acquisition module used for acquiring bending and stretching data of legs of a patient; the data processing module is used for receiving the pressure data, collected by the pressure sensor, of the knee joint of the patient and generating intraoperative planning information based on the flexion and extension data and the pressure data; and the display feedback module is used for displaying the intra-operative planning information and guiding a surgeon to perform a total knee replacement operation on the patient. By adopting the system, the dynamic, automatic and accurate adjustment of the intraoperative operation planning can be realized, the dependence on the personal experience of doctors is reduced, and the soft tissue balance effect and the operation success rate are improved.

The application provides a full-orthopedic multi-disease artificial intelligence surgical robot system, comprising: a total hip replacement module for preoperative planning, intraoperative total hip replacement and real-time display; a total knee replacement module for preoperative planning, intraoperative total knee replacement and real-time display; a unicompartmental arthroplasty module for preoperative planning, intraoperative unicompartmental arthroplasty and real-time display; a periacetabular osteotomy module for preoperative planning, intraoperative periacetabular osteotomy and real-time display; a sports medicine module for bone tunnel planning and ligament reconstruction and real-time display; a spine nail positioning navigation module for intraoperative spine nail positioning navigation and real-time display; and a trauma positioning navigation module for intraoperative trauma positioning navigation and real-time display. According to the embodiment of the application, the auxiliary surgery can be quickly and accurately performed.

This invention relates to a patient positioner and, more specifically, to an articulated armature configured to position a leg and knee at a precise angle, as needed in unicompartmental knee arthroplasty surgery. The positioner is adapted to connect to either side rail of a support table, without changing orientation, via drop pins disposed in a socket clamp. The socket clamp may couple to a ball coupled to a first arm and elbow joint, which in turn may couple to a second arm and wrist joint, which in turn may couple to a pad assembly adapted to hold the patient's thigh, thereby positioning the lower leg to dangle over the side or end of an operating table. The positioner is adapted for ease of disassembly, sterilization, and reassembly. The invention may be exchanged for a total knee replacement positioner without moving the patient or breaking the sterile field.

The invention relates to functionally graded polymeric knee implants for enhanced fixation, wear resistance and mechanical properties and manufacture thereof. The present invention includes polymer-based femoral and / or tibial component implants for total knee replacement / replacement procedures for providing improved wear resistance, enhanced physiological response at the bone / implant interface, and reduced stress shielding. The implant may be made via additive manufacturing. The articular surface of the implant may be implemented in the absence of any additive or in a form containing an additive for improving the tribological response. Furthermore, the instruments disclosed herein contain an interface surface (i.e., a bone / implant interface) in contact with natural bone, which may be present in its pure form, containing a bioactive additive. The implant has a porous topography on the bone / implant interface to improve biological response and improve fixation. Wherein the depth and topography of the additive is controlled via the techniques disclosed herein.

The invention provides a cold region orthopedics department digital intelligence diagnosis and treatment intelligent operation planning system comprising a total knee joint replacement planning module used for planning according to an acquired knee joint medical image and cold region specificity data; the total hip replacement planning module is used for planning according to the acquired hip joint medical image and cold region specificity data; the unicondylar joint replacement planning module is used for planning according to the obtained knee joint medical image and cold region specificity data; the acetabulum periphery osteotomy planning module is used for planning according to the obtained hip joint medical image and cold region specificity data; the sports medical planning module is used for planning according to the acquired joint medical image and cold region specificity data; the spine planning module is used for planning according to the spine medical image and the cold region specificity data; and the trauma planning module is used for performing trauma operation planning according to the trauma part medical image and the cold region specificity data.

The embodiment of the application is suitable for the technical field of computer-aided medical treatment, and provides an orthopedic surgery robot system and an intraoperative planning method for orthopedic surgery. The system is connected with a pressure sensor and comprises a data acquisition module, a data processing module and a display feedback module. The data acquisition module is used for acquiring flexion and extension data of a patient's leg. The data processing module is used for receiving pressure data of the patient's knee joint collected by the pressure sensor, and generating intraoperative planning information based on the flexion and extension data and the pressure data. The display feedback module is used for displaying the intraoperative planning information and guiding a surgeon to perform total knee arthroplasty on the patient. By using the above system, dynamic, automatic and accurate adjustment of intraoperative surgery planning can be realized, the dependence on the personal experience of the surgeon is reduced, and the effect of soft tissue balance and the success rate of surgery are improved.

A polymeric based femoral and / or tibial component implant can be be used in total knee replacement / arthroplasty procedures serving to provide increased wear resistance, enhanced physiological response at the bone / implant interface, and decreased stress-shielding. The implant can be made via additive manufacturing. The articulating surface of the implant may be implemented in without any additive or in a form containing an additive for improved tribological response. Further, the a device contains an interfacial surface which is in contact with the native bone (i.e., bone / implant interface) which may exist in its pure form, containing a bioactive additive. The implant has a porous morphology on the bone / implant interface for improved biological response and improved fixation. The depth of the additives and the topographical morphology therein are controlled via techniques disclosed herein.