120 results about "Joint implant" patented technology

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.

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.

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.

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.

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.

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 embodiment of the invention provides a robot control method, a robot control device and a robot, which are applied to an application scene in which a robot needs to be in rigid contact with a target, such as fine surgical operations such as orthopedic joint replacement and dental implantation of a surgical robot. The control method comprises the steps of obtaining contact force data of the robot; filtering the contact force data according to the change rate of the contact force at the current moment so as to determine preprocessed contact force data; servo control parameters of the robot are determined according to the preprocessed contact force data, a self-adaptive admittance control model and a speed Weil method numerical integration algorithm; and controlling the robot to work according to the servo control parameters of the robot. In the filtering processing process of the contact force data, the filtering intensity can be dynamically adjusted according to the change rate of the contact force at the current moment, tool bounce or tremor is avoided when the robot makes contact with a rigid target, and the working stability, precision and safety of the robot are improved.

A prosthetic hip implant comprises a femoral component, an acetabular component, a liner, and ball bearings. The femoral component includes a stem for attachment to the patient's femur and a femoral head structure for articulation with a bearing surface. The acetabular component features a socket formation designed to receive the femoral head structure. The liner covers the exterior articulation surface of the socket formation, with one side in contact with the socket's exterior surface and the other side forming the bearing surface. Ball bearings are positioned between the femoral component and the bearing surface and are rotatably mounted within spaced parallel concentric grooves define in structure to transmit forces between the structure and the bearing surface.

This invention discloses a self-assembled joint implant integrating hard and soft tissue and its forming method. The implant comprises two parts: a hard tissue structure and a soft tissue structure. The hard tissue structure includes a dense hard tissue structure and a porous, loose hard tissue structure with a bidirectional gradient porosity. The soft tissue structure includes a hard soft tissue structure and a soft soft tissue structure, with different ratios of hydroxyapatite and hydrogel. The contact surfaces of the hard and soft tissue structures have corresponding serrated structures, achieving stable assembly through a combination of interference fit and friction. Furthermore, the hard tissue undergoes surface modification and is combined with a binder to promote the stability of the hydrogel applied before and after assembly, improving the firmness of the soft-hard tissue bond. The overall structure and materials of this invention exhibit continuous gradient continuity, enabling a stable transition of properties at various interfaces and reducing instability, thereby promoting post-implantation recovery and preventing loosening.

The utility model relates to a kind of dislocation-preventing nursing appliances for total hip replacement in the art of joint replacement nursing, including waist belt, the waist belt outside fixed with bracing plate, bracing plate both sides are equipped with connecting plate, two connecting plates bottom are equipped with leg protector, two leg protectors are connected by connecting assembly, for fixing leg, the bracing plate and connecting plate junction are equipped with limiting component, the limiting component includes with the fixed rotating plate of connecting plate one end, the rotating plate outer wall is fixed with rotating block, the bracing plate side close to rotating plate is equipped with two baffle, two baffle are located rotating plate outside, for the leg movement is limited. The utility model is convenient for fixing and controlling leg, avoid patient excessive activity hip joint, to avoid hip joint secondary injury.

The present invention discloses the use of CircSS18 in a drug for the treatment of osteoarthritis and a method for its preparation. Local intra-articular injection of a nano-controlled-release hydrogel composite overexpressing circSS18 has significant potential clinical value in the targeted treatment of osteoarthritis: 1. Compared with current clinical local intra-articular injections of sodium hyaluronate and platelet-rich plasma (PRP), this method has a clear target and mechanism of action, making the treatment more targeted and effective, and a curative approach. 2. Compared with current clinical oral symptomatic treatments such as NSAIDs and glucosamine, this method can fundamentally inhibit the progression of osteoarthritis. 3. Compared with surgical procedures such as arthroscopy and joint replacement, this method is less invasive, less expensive, more feasible, and more practical, making it more acceptable to patients.

A system for confirming registration of a bone involved in a joint replacement procedure is provided. The system includes a three-dimensional (3-D) bone model of the bone registered to a bone location, a visible light camera, and a display. The visible light camera captures images of the bone in the camera's field-of-view (FOV). The display is configured to display the captured images of the FOV and an image of the 3-D bone model, where the displayed location of the image of the 3-D bone model corresponds to the location of the 3-D bone model registered to the bone location. The registration may be confirmed if the displayed location of the image of the bone as captured by the visible light camera corresponds to the displayed location of the 3-D bone model.

Prosthetic ankle replacements, prostheses, and associated methods of implanting prosthetic ankle and other joint replacements. In one form, a tibia stem has a geometry to facilitate implant installation while providing means to transfer load over a larger surface area through a press-fit, scratch-fit or cortical fit, thus lowering the contact stresses at the tibia-metal implant interface. The design and its implantation procedure also address minimization of misalignment. A talus element presents a partial-hemispherical surface; a tibial element which is to be affixed within the tibia, having an elongated stem part which extends into and within a canal of the tibial inner cortex, an intermediate body part which smoothly widens in radius toward an end which is a base to the tibial element, the base having a concavity formed therein shaped to match the partial-hemispherical surface of the talus element with a plastic cap between the two.

Disclosed herein are implants with sensors and methods for powering implants with sensors. A joint implant according to the present disclosure can include a first implant and a second implant in contact with the first implant. The first implant can be coupled to a first bone of a joint. The first implant can include an energy generator coupled to a transducer. The second implant can include at least one sensor, a battery coupled to the at least one sensor, and a receiver coupled to the battery. The receiver can be disposed within the second implant adjacent the transducer. Energy from the energy generator can be transmitted from the transducer of the first implant to the receiver of the second implant.

The present disclosure provides an implant, a corresponding method of implantation, and a method of using the same that can be used in orthopaedic joint replacement arthroplasty or hemiarthroplasty and / or an orthopaedic joint resurfacing arthroplasty or hemiarthroplasty. The implant can include a fin portion for receipt in a corresponding slot formed in bone, and the fin portion can support an articulation portion that can be used in resurfacing and replacing portions of articulation surfaces of a joint.

The present invention provides a method and system for reconstructing a cartilage surface, and an electronic device, comprising: obtaining an outer contour model of the bone cortex and a set of marking points of the cartilage surface, and transforming the outer contour model of the bone cortex and the set of marking points of the cartilage surface into a preset image coordinate system; obtaining the projection points of each marking point in the set of marking points of the cartilage surface on the outer contour of the bone cortex, and determining the coverage area of ​​the projection points; elastically stretching the coverage area of ​​the projection points to simulate the degree of wear on the cartilage surface to obtain a reconstructed cartilage surface; solving the problem that current joint replacement surgery does not incorporate the influence of cartilage into prosthesis planning, thereby causing wear of muscles or ligaments, and can provide practical and effective guidance when performing prosthesis planning and adjustment, which is more conducive to prosthesis planning and adjustment. The present invention greatly improves the intelligence, usability and reliability of prosthesis planning in joint replacement.

The present disclosure provides an implant, a corresponding method of implantation, and a method of using the same that can be used in orthopaedic joint replacement arthroplasty or hemiarthroplasty and / or an orthopaedic joint resurfacing arthroplasty or hemiarthroplasty. The implant can include a first fin portion and a second fin portion for receipt in a first slot and a second slot, respectively formed in bone, and the first fin portion and the second fin portion can support an articulation portion that can be used in resurfacing and replacing portions of articulation surfaces of a joint.

The utility model discloses a reverse shoulder joint prosthesis connecting piece which comprises a main installation assembly, a positioning assembly is arranged on one end face of the main installation assembly, a plurality of main fixing assemblies are arranged on the main installation assembly, and a connecting assembly is arranged on the end face, away from the positioning assembly, of the main installation assembly. And a shoulder glenoid ball head is arranged on the connecting assembly. The reverse shoulder joint prosthesis connecting piece has the advantages that the reverse shoulder joint prosthesis connecting piece is used for prosthesis replacement of the shoulder blade side in reverse shoulder joint replacement and treatment of rotator cuff injuries, the occurrence of shoulder blade lower incisura can be effectively prevented, and meanwhile different eccentric shafts can be selected when the reverse shoulder joint prosthesis connecting piece is matched with different patient conditions.

The present application relates to the technical field of pulverizer, and more particularly to a pulverizing equipment modular wear rack plate and a replacement method thereof, which comprises the following steps: acquiring the wear rate value, material hardness value, water content, body vibration amplitude value and original assembly gap value of each module wear rack plate in real time; judging whether there is a particle embedding risk based on the particle embedding risk coefficient; determining whether the embedded particles cause abnormal wear based on the material hardness value and the wear rack plate hardness; identifying whether there is local abnormal wear based on the wear rate mutation coefficient; deciding to execute a single module or group replacement strategy and generating an instruction based on the joint replacement urgency coefficient; calculating the replacement effect compliance coefficient after replacement to verify the replacement effect; and calculating the correction coefficient based on the effect compliance deviation to optimize the characteristic parameters in the replacement process. The present application solves the problems of damage of the split type wear rack plate caused by micro displacement due to particle embedding gap and accurate replacement of the wear rack plate.

A bone joint implant (1) has a proximal portion (120) for translational movement over a metacarpal bone in a first carpometacarpal joint and a distal portion (110) for intramedullary engagement in a first metacarpal bone. An articulating link (103, 121, 123) is for polyaxial movement in which one portion (120) moves translationally over a bone and the other portion (110) rotates about the articulating link (121, 103). A flange (105) extends radially and about the link to limit relative rotational movement of the proximal and distal portions about the link and to provide resilience for contact between the proximal and distal portions. The flange has a profile surface (101) which in use mates with an abutment surface (125) of the proximal portion (122) when the portions articulate to a limit position. The flange (105) is included in an insert (100) in a stem (111) of the distal portion (110), the flange extending proximally of the stem (111) and preventing contact between the proximal portion (120) and the stem (111) during articulation.

The invention discloses a surgical navigation system and method based on three-dimensional space registration and augmented reality fusion, and relates to the technical field of medical equipment, and the surgical navigation system comprises a sterile adaptive AR helmet, a multi-source fusion positioning module, a medical level display module, an intelligent control host and a three-dimensional anchoring processing module. According to the invention, through the cooperation of the sterile adaptive AR helmet and the multi-source fusion positioning module, the accuracy and safety of the operation are remarkably improved, the medical level display module is combined with the real-time space registration of the three-dimensional anchoring processing module, the immersive 3D navigation of the DICOM image is realized, the view switching distraction is eliminated, the operation efficiency is optimized, and the operation accuracy and safety are improved. Intraoperative infection prevention and control are jointly enhanced through the intelligent control host and the sterile design, and the pollution risk is reduced. The dynamic scene adaptability and standardization compatibility of the system further expand the application potential of the system in complex scenes of pleuroperitoneal cavity minimally invasive surgery and orthopedic joint replacement, and provide reliable technical support for precise and minimally invasive surgery.

The invention discloses a joint replacement full-stage self-adaptive Ag-DLC coating and a preparation method thereof, the coating comprises a bio-friendly substrate, a titanium bonding layer and an Ag-element-doped Ag-DLC functional layer, the Ag element in the functional layer is embedded in a DLC carbon skeleton in the form of Ag nanoparticles, the size of the Ag nanoparticles is 1-35 nm, and the doping amount is 2-40 at.%. According to the invention, the DLC coating with the nanocrystalline / amorphous composite structure characteristic is constructed by doping the Ag element with the anti-bond characteristic, so that the synergism of functions such as mechanical bearing, abrasion resistance, antibacterial property and biocompatibility can be realized. By means of controllable release of the Ag nanoparticles, self-adaptive response of functional characteristics of the metal joint implant in the whole service stage can be achieved, the requirements of the coating on the antibacterial performance and biocompatibility in the early postoperative stage can be met, and reliable anti-abrasion protection and osteogenesis promoting functions can be provided for the stable postoperative service stage.

The invention discloses a joint replacement bone cement uniform smearing device and a using method thereof, and belongs to the technical field of joint replacement. Comprising a drug delivery assembly, a coating assembly is arranged at the bottom of the drug delivery assembly, the drug delivery assembly comprises an injection tube, a communicating head is arranged at the bottom of the injection tube, the coating assembly comprises an exhaust cavity, a communicating port is formed in the top of the exhaust cavity and connected to the outer side of the communicating head in a clamped mode, and a communicating part is arranged at the bottom of the exhaust cavity. A doctor blade is fixedly installed at the bottom of the communicating part, the doctor blade is of a hollow structure, an administration groove is formed in one side of the lower end of the doctor blade, a uniform coating strip is fixedly installed at the bottom of the doctor blade, the doctor blade and the uniform coating strip are both made of medical silica gel, and the hardness of the doctor blade is larger than that of the uniform coating strip. A flow guide groove is transversely formed in the outer side of the uniform coating strip; according to the bone cement smearing device, bone cement can be conveniently and evenly smeared to the surface of a joint platform, bubbles mixed in the bone cement can be eliminated, and the high practical value is achieved.

A sacroiliac joint implant system includes a primary implant configured to be received in a sacroiliac joint of a patient and a secondary implant configured to couple with the primary implant. The primary implant includes a body extending from a proximal end to a distal end and a plurality of threads extending from the body. The secondary implant includes a first anchor configured to anchor within a sacrum of the patient and a second anchor configured to anchor within an ilium of the patient.