218 results about "Joint implant" patented technology

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device and at least one orthopedic fixture. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, or to otherwise assist in an orthopedic procedure or procedures.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

The invention provides a method and system for reconstructing a cartilage surface and electronic equipment, and the method comprises the steps: obtaining an outer contour model of a bone cortex and a mark point set of the cartilage surface, and converting the outer contour model of the bone cortex and the mark point set of the cartilage surface into a preset image coordinate system; obtaining a projection point of each mark point in the mark point set on the cartilage surface on the outer contour of the bone cortex, and determining a coverage area of the projection points; performing elastic stretching on the coverage area of the projection point, and further simulating the wear degree of the cartilage surface to obtain a reconstructed cartilage surface; the problem that muscle or ligament abrasion is caused due to the fact that the influence of cartilage is not brought into prosthesis planning in an existing joint replacement operation is solved, practical and effective guidance can be provided during prosthesis planning and adjusting, prosthesis planning and adjusting are better facilitated, and the prosthesis planning and adjusting efficiency is improved. The intelligent degree, usability and reliability of prosthesis planning in joint replacement are improved to a great extent.

A method includes receiving by a controller, a surgeon-specific surgery profile for an implantation of an implant into a joint, implant profiles, a patient-specific post-surgery desired functional profile of the joint after the implantation, and bone registration data for a first bone member and a second bone member of a patient are inputted into a surgical plan model to generate a surgical plan. The surgical plan model is designed to achieve the patient-specific post-surgery desired functional profile based at least in part on a plurality of dependencies between a plurality of surgical parameters, the implant profiles, at least one functional parameter representative of the expected functional performance of the joint, and movement-related data of the joint. The surgical plan is outputted on a graphical user interface (GUI) on a surgery assistant device to facilitate the implantation.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device and at least one orthopedic fixture. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, or to otherwise assist in an orthopedic procedure or procedures.

The invention relates to a hip joint prosthesis peripheral fracture steel plate cable binding and fixing device which comprises a head portion at the near end and a body portion at the far end, and the head portion and the body portion are integrally arranged. The inner surfaces of the head part and the body part are arc-shaped curved surfaces which are tightly attached to the outer surface of the thighbone of a human body; the head is of an anatomical structure matched with the physiological appearance of the outer side face of the greater trochanter of the femur. The body part is of an anatomical structure matched with the physiological shape of a thighbone body at the proximal end of the thighbone; at least one clamping hook is arranged at the near end of the head part, and the clamping hook is in an anatomical radian shape attached to the outer side of the top end of the major trochanter; and the body part is provided with a plurality of lock hole structures. The device is placed on the outer side face of the femur with the vertex of the greater trochanter as a mark; the device is suitable for patients who fail in internal fixation in a proximal femur fracture operation and need revision and suffer from fracture around a femur prosthesis after a joint replacement operation, at least one clamping hook is specially arranged at the proximal end of the head, a fracture block can be grabbed through the clamping hook, and reduction failure is avoided.

An orthopaedic knee implant includes a femoral component having a substrate and a coating disposed on the surface of the substrate. A method for making a femoral component of an orthopaedic knee implant is also disclosed.

The invention provides a multi-disease artificial intelligence surgical robot system for the whole orthopedics department, and the system comprises a total hip joint replacement module which is used for preoperative planning, intraoperative total hip joint replacement and real-time display; the total knee joint replacement module is used for preoperative planning, intraoperative total knee joint replacement and real-time display; the unicondylar joint replacement module is used for preoperative planning, intraoperative unicondylar joint replacement and real-time display; the acetabulum periphery osteotomy module is used for pre-operation planning, acetabulum periphery osteotomy during operation and real-time display; the sports medicine module is used for bone tunnel planning and ligament reconstruction and real-time display; the spine screw placement positioning navigation module is used for positioning navigation and real-time display of intraoperative spine screw placement; and the trauma positioning and navigation module is used for performing trauma positioning and navigation and real-time display during operation. According to the embodiment of the invention, the auxiliary operation can be quickly and accurately carried out.

An orthopaedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A number of methods for using the surgical instruments to prepare the bones is also disclosed.

A method and system are disclosed to assist in proper alignment of a cutting guide relative to a bone in preparation for a joint implant. Separately, or in combination with the cutting guide alignment, the planarity of a cut surface is measured, in order to modify the cut surface prior to mounting an implant on the bone. Location feedback of a digitizer tip relative to a bone coupled cutting guide is used to determine the position and orientation (POSE) of a cut plane to be formed on the bone using a cutting device in conjunction with the guide slot(s) of the cutting guide. The POSE of the digitizer is determined using a tracking system. The POSE of the determined cut plane overlaid on a bone model and compared to the POSE of a planned cut plane better positions the cutting guide prior to actual bone cuts using the cutting guide.

Systems and methods to evaluate a joint implant device are provided. The joint implant device can include a body having a first end to couple with a first joint component and a second end to couple with a second joint component. The body can include a first gear mechanism to cause a change in axial distance between the first end and the second end of the body. The body can include a second gear mechanism to cause a change in angle between the first end and the second end of the body about an axis.

The invention discloses a method for predicting periprosthetic infection of an artificial joint after a rheumatoid arthritis operation, and belongs to the technical field of medical treatment, the method can be applied to risk prediction of periprosthetic infection (PJI) of the artificial joint after the rheumatoid arthritis operation, and the method comprises the following steps: carrying out feature selection through a Boruta algorithm; an integrated machine learning algorithm is developed based on a genetic algorithm and an SMOTEENN algorithm in combination with machine learning for risk prediction, so that the accuracy and practicability of PJI risk prediction after joint replacement of a rheumatoid arthritis patient are improved. According to the rheumatoid arthritis artificial joint postoperative periprosthetic infection risk prediction method, a more accurate prediction and personalized treatment scheme can be provided for a doctor, and preoperative management of joint replacement of a rheumatoid arthritis patient is optimized, so that PJI is prevented to the greatest extent, and the joint function and life quality of the patient are improved.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

A method for simulating and selecting an implant for optimized insertion or joint replacement during a surgical procedure on a patient includes the steps of: reading at least one implant parameter, in particular an implant dimension and / or a weight restriction, of a selected implant model; calculating, based on the at least one implant parameter, simulated loads due to predefined forces and momenta at and on the implant mode; determining, based on the at least one implant parameter, whether load limits of the implant model are adhered to in the simulated loads; and, outputting, via a display device, visual confirmation of a selection of the implant model if the load limits are adhered to, or outputting a visual warning before selection of the implant model if the load limits are exceeded. An implant assistance system and a computer-readable storage medium are used to perform the method.

A sacroiliac (SI) joint implant assembly addresses SI joint dysfunction and degenerative sacroiliitis. The assembly includes a first implant body, a second implant body, and a piezoelectric layer positioned between them. The piezoelectric layer generates electrical charges when subjected to mechanical stress, stimulating bone growth and enhancing stability of the SI joint after surgery. The implant bodies may feature non-planar surfaces to distribute compressive and shear forces unevenly across the piezoelectric layer. The assembly can be secured using fasteners such as screws, pins, or brackets, and may include porous or fenestrated bodies made from materials like titanium or polymers. Some implant assemblies are designed for minimally invasive surgical procedures, with configurations that allow for precise placement using guide wires and imaging techniques. The assembly aims to stabilize the SI joint and promote bone fusion, leveraging the piezoelectric effect to improve the overall efficacy of the fusion procedure.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device and at least one orthopedic fixture. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, or to otherwise assist in an orthopedic procedure or procedures.

The invention discloses a unicondylar joint replacement tibial plateau vertical osteotomy positioning device, relates to the technical field of tibial replacement positioning, and provides the following scheme that the unicondylar joint replacement tibial plateau vertical osteotomy positioning device comprises a base, and two up-and-down position adjusting pieces are arranged on the surface of the top of the base in an up-and-down stacked mode. According to the technical scheme, the tibia fixator and the up-down position adjusting piece are arranged, the tibia is clamped and fixed through the tibia fixator, it is ensured that the tibia does not slide in the operation process, the silicon rubber case and the pressure sensor are arranged on the portion, making contact with the tibia, of the clamp, and the clamping force can be monitored while the surface of the tibia is prevented from being damaged. The vertical position adjusting part can adjust the clamping position of the clamp on the ankle, and the osteotomy angle adjusting part is additionally arranged to enable the linear laser transmitter to change the angle, so that rays with angles are projected on the tibia, a doctor can be helped to finely adjust the angle according to actual needs, and accurate positioning is ensured.

An orthopaedic joint replacement system is shown and described. The system includes a number of prosthetic components configured to be implanted into a patient's knee. The system also includes a number of surgical instruments configured for use in preparing the bones of the patient's knee to receive the implants. A number of methods for using the surgical instruments to prepare the bones is also disclosed.

An apparatus can include a metacarpal implant, a trapezium implant, and a spacer. The metacarpal implant can include a stem to be inserted into a first cavity of a metacarpal bone and having a first end and a second end, a radial lip, the radial lip extending from the second end, and an opening, the opening extending from the radial lip to the first end. The trapezium implant can include an implant head portion having a shape to match a shape of a trapezium bone and a first cavity insert, to be inserted into a second cavity of the trapezium bone extending from the bottom surface. The spacer can include a spacer head portion congruent to the implant head portion and an opening insert to be inserted in the opening and extending from the bottom surface.

A distal femoral joint replacement system includes a femoral component having condylar articular surfaces, a stem extending from the femoral component, and a void filler for filling a bone void within a femur. The void filler includes a body and a plurality of legs extending from the body. The body has a sidewall defining an opening for receipt of the stem which extends along a length of the body and extends through the sidewall so as to form a side-slot in the sidewall that extends along an entire length of the sidewall. The plurality of legs each have a first end connected to the body and a second end remote from the body. The legs each have an outer surface that tapers between the first and second ends and is configured to register with a corresponding inner surface of a bone void when implanted in an end of the femur.

Methods, systems, and devices for treating osteochondral defects (OCDs) are disclosed. The disclosed methods and systems include collecting joint surface data using image-free methods, generating a three-dimensional (3D) healthy bone model based on the joint surface data and a database of healthy bone anatomies, defining the OCD boundary on the joint, generating a 3D implant model based on the 3D healthy bone model and the OCD boundary, manufacturing an implant based on the 3D implant model, generating an implantation plan, the resected cavity on the joint. The implant includes a 3D-printed titanium alloy substrate having a first and second porous layer separated by a nonporous layer. A polymer material is over-molded onto the second porous layer and treated to exhibit properties that mimic cartilage, while the first porous layer allows the implant to fuse to patient bone.

To provide surgical systems that facilitate joint replacement procedures.SOLUTION: A method includes defining a virtual object, and defining a first point and a second point associated with a virtual representation of a surgical tool. Movement of the virtual representation of the surgical tool corresponds to movement of the surgical tool in real space. The method includes controlling a robotic device coupled to the surgical tool to constrain the first point to the virtual object, determining that the first point is at a threshold position along the virtual object, and controlling the robotic device to guide the second point to the virtual object.SELECTED DRAWING: Figure 1

A method and system for guiding joint replacement procedures based on functional stability analysis of a joint. The method comprises communicatively connecting to a plurality of sensors worn by an individual at muscles in a joint area and performing an initial measurement that evaluates strength and activity level of the muscles. The initial measurement includes a recording of data values from the plurality of sensors during a preoperative testing procedure. The initial measurement is compared with reference data, wherein the reference data includes measurements of healthy people with normal muscle function. The method further comprises generating joint replacement recommendations based on the comparison.

A prosthetic stem is configured to reduce the perioperative and intraoperative risk of catastrophic medical complications and death that may be caused by BCIS. The prosthetic stem includes one or more internal channels that are configured to self-regulate intramedullary pressure within a prepared bone channel as the stem is inserted into the channel, thus reducing the likelihood of BCIS without sacrificing biomechanics and maintaining a reliable and repeatable implantation process. The stem includes a head and a body, wherein the head is configured to serve as a joint replacement and the body is configured for insertion into the prepared bone channel of a patient. One or more internal channels in the stem are configured to control the pressure within the prepared bone channel during insertion of the stem into the channel, particularly by forming a path through which excess cement may flow as the stem proceeds into the prepared bone channel. By so limiting pressurization of cement during this process, the risk of BCIS complications and other potential harmful effects are reduced while still maintaining sufficient fixation of the prosthetic stem in the prepared bone channel.

A reference jig comprises a base adapted to be secured to a distal end of a bone. An adjustment mechanism has a bracket, one or more rotational joints operatively mounting the bracket to the base, whereby the bracket is rotatable in two or more rotational degrees of freedom relative to the base, and one or more translational joints. A landmark alignment unit is operatively connectable to the bracket by the at least one translational joint, the landmark alignment unit having a bone alignment component configured to be aligned with at least one bone landmark.

The invention discloses an intelligent joint replacement revision operation system and method based on CBCT and optical navigation, and the system comprises an imaging device which is used for collecting the positive and lateral two-dimensional images of a femur region and an ankle joint region of an affected limb and the three-dimensional image of a knee joint region, and reconstructing the three-dimensional models of the femur and the tibia; the optical tracking equipment is used for acquiring poses of the first tracing equipment and the second tracing equipment in real time; the key point acquisition module is used for acquiring three-dimensional positions of a femoral head central point and an ankle joint central point in the positive and lateral two-dimensional image and acquiring femoral inner and outer upper condyle points and a tibia marrow cavity point in the three-dimensional model; the affected limb section extraction module is used for obtaining the far-end section, the anterior section and the posterior section of the femur in the knee joint area and the plateau section of the tibia in the knee joint area; and the planning execution module is used for determining the target pose of the new implant according to the corresponding section, and performing planning execution according to the target pose. According to the invention, the accuracy and safety of the joint replacement revision operation can be improved.

A joint implant can include a proximal joint implant element having a proximal curved interface surface and a proximal base portion. The joint implant can also include a distal joint implant element coupled to the proximal joint implant element, having a distal curved interface surface facing the proximal curved interface surface, and a distal base portion. A first filament segment and a second filament segment can extend from the proximal joint implant element to the distal joint implant element. The second filament segment can cross the first filament segment at a location between the proximal joint implant element and the distal joint implant element. A proximal bone interface connector can be connected to the proximal base portion, and a distal bone interface connector can be connected to the distal base portion.

Systems and methods of determining ligament attachment areas with respect to the location of a rotational axis of a joint implant are disclosed. Certain embodiments provide a computer-implemented method of evaluating placement of a joint implant with respect to a joint. The method includes determining one or more ligament attachment regions of the joint. The method further includes determining one or more rotational axes of the joint implant. The method further includes determining a position of the joint implant relative to the joint. The method further includes determining whether the one or more rotational axes align with the one or more ligament attachment regions when the joint implant is at the position. The method further includes displaying to a user an indication of whether the one or more rotational axes align with the one or more ligament attachment regions when the joint implant is at the position.

Systems and methods to evaluate a joint implant device are provided. The joint implant device can include a prosthesis body having a first end and a second end. The first end can couple with a first joint component and the second end can couple with a second joint component. The prosthesis body can include a first support. The prosthesis body can include a first gear rotatably coupled with the first support. The prosthesis body can include a second support movably coupled with the first support. The second support can include a second gear that can engage with a portion of the first gear. The prosthesis body can include a third support. The third support can movably couple with the second support. The third support can move relative to the first support with activation of the first gear.

The utility model belongs to the technical field of medical instruments, and relates to a joint implant for the orthopedics department. The joint implant is used for joint bone cartilage injury and defect repair and comprises a joint implant base body with a porous titanium structure and a top solid self-lubricating film. The joint implant base includes a top region, an upper region, and a lower region. The top area is matched with the outer contour face of the human body bone and is of a dense mirror face structure, the surface of the top area is plated with a solid self-lubricating film, abrasion to the opposite-side cartilage can be reduced to a large extent, and degeneration of the opposite-side cartilage is reduced. The side faces of the top area and the upper area of the joint implant base body make contact with subchondral bones and cancellous bones of the human body, and the lower area of the joint implant base body makes contact with the cancellous bones of the human body. The aperture and porosity of the joint implant base body extend from the upper area to the lower area, are increased in a gradient manner, are matched with the mechanical properties of human bones, and are beneficial to initial stability, early-stage rapid bone ingrowth and long-term stability.