24 results about "Joint replacement" patented technology

The application discloses a robot-assisted joint replacement surgery accurate positioning device, which comprises a machine arm body, a lower limb arm and an upper limb arm arranged on the lower limb arm, an adjusting assembly, a positioning component, a first joint, a rotating shaft body and a matching shaft body, and rotating members arranged on the lower limb arm and the upper limb arm. The machine arm body, the adjusting assembly and the angle transformation assembly are cooperatively matched, the machine arm body provides basic bearing and multidimensional motion support for surgery positioning, and flexible coverage of a surgery area is realized through rotation and stretching of the large arm.

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 application relates to the technical field of surgical robot control, and a laser osteotomy forming assisted ankle joint replacement surgery robot control method and system, comprising: using a surgical robot to cut and shave a simulated ankle bone to obtain an original osteotomy depth and a target sound wave signal group, identifying an osteotomy laser feature group of the target sound wave signal group, adjusting an original laser parameter group to obtain a replacement laser parameter group, performing a laser osteotomy test based on the replacement laser parameter group to obtain an adjusted osteotomy depth and an adjusted sound wave signal set, identifying an adjusted laser feature group set of the adjusted sound wave signal set, calculating a correlation intensity value, and determining a target laser parameter group set based on the correlation intensity value. The present application can improve the stability and accuracy of the laser osteotomy forming assisted ankle joint replacement surgery robot in cutting and shaving under complex geometric and complex material conditions, and improve the intelligent degree of the surgical robot control.

The present application relates to the technical field of surgical robots, and particularly relates to a handheld hip replacement surgery robot, which comprises a shell, a driving interface, a locking part, a base fixedly sleeved on the periphery of the driving interface, extrusion blocks and an adjusting ring, wherein the extrusion blocks are circumferentially arranged at the front end of the base and jointly define a central passage with the inner cavity of the base for receiving a handle of a surgical instrument; the adjusting ring is threadedly sleeved outside the base, and the inner wall of the adjusting ring is formed with extrusion surfaces matched with the outer surfaces of the extrusion blocks; the locking part is configured to, after the handle of the surgical instrument is inserted into the central passage, rotate the adjusting ring to drive the adjusting ring to move axially along the base, convert the axial displacement of the adjusting ring into synchronous radial extrusion force applied to the extrusion blocks through the interaction between the extrusion surfaces and the outer surfaces of the extrusion blocks, force the extrusion blocks to produce centripetal elastic deformation, and thus realize the multi-point uniform coating and rigid clamping of the handle of the surgical instrument; and an adjustable holding part is installed at the bottom of the shell.

This application relates to the field of medical device technology, specifically to an extramedullary positioning distal femoral osteotomy device for knee replacement, comprising an osteotomy plate, an axial indicator, a rotating component, and a reference plate. The osteotomy plate has a reference end face and an abutment end face, with a cutting suture and pin holes provided on the reference end face. The axial indicator is rotatably mounted on the reference end face; the rotating component is rotatably mounted on the reference end face; the reference plate is slidably mounted on the rotating component, and the reference plate can slide on the rotating component in a direction away from or close to the rotation axis of the rotating component, with the reference plate perpendicular to the reference end face. In this application, the axial indicator determines the direction of the patient's femoral axis, ensuring that the movement of the osteotomy plate is consistent with the direction of the femoral axis, thereby improving the accuracy of the cutting position during surgery. The rotating component and the reference plate allow the surgeon to adjust according to the preoperatively determined angle of the prosthesis articular surface, enabling precise matching of the cutting suture angle with the prosthesis articular surface, further improving the precision of the surgery.

This invention relates to the field of medical care technology and discloses a shape memory alloy (NiTi) hip replacement proximal femoral anti-fracture device. It includes a fitting body, with a first clamping arm fixedly disposed at the mid-front end of the fitting body. A fourth connecting mechanism and a sixth connecting mechanism are fixedly disposed at the front end of the fitting body, symmetrically arranged on the upper and lower sides of the first clamping arm. This invention is simple to operate, provides firm fixation, and is practical and reliable. NiTi shape memory alloy possesses shape memory effect, superelasticity, and good biocompatibility. Using NiTi shape memory alloy as the raw material to prepare the encircling device, it is in a flat, extended state at low temperatures and recovers its designed curved shape after heating, firmly and effectively encircling the lesser trochanter. It is mainly applied in hip replacement surgery for elderly patients with femoral neck fractures and osteoporosis, effectively preventing proximal femoral splitting during femoral prosthesis wear.

This invention discloses a joint replacement surgical robot system and control method based on digital twin technology. In the system, the operating table is fixed with a head fixation mechanism, a lumbar fixation mechanism, and a joint motion mechanism for fixing and adjusting the patient's limbs. The robotic arms of the dual-arm robot are equipped with a 3D imaging scanning device, a binocular vision navigation device, and surgical instruments. The main controller of the main carriage is communicatively connected to the joint motion mechanism, the 3D imaging scanning device, the binocular vision navigation device, the surgical instruments, and the dual-arm robot. Through the technical solution of this invention, the surgical process can be planned in real-time using digital twin technology, a digital model of the bone and joint can be established, and real-time synchronous dynamic analysis results can be provided as surgical guidance data. This eliminates the need for a guide plate positioning process, allowing the surgery to be completed in a very short time, greatly improving surgical efficiency and minimizing the trauma to the patient caused by fixation braces and guide plates in conventional surgery.

This utility model relates to the field of osteotomy devices, and discloses a femoral neck osteotomy device for hip replacement, including a fixing sleeve. A support frame is fixedly connected to the outer wall of the fixing sleeve near the front end. A rotating sleeve is hinged to the inner wall of the support frame near the rear end. A limiting component is provided on the inner wall of the support frame. The limiting component includes a stop block, which is fixedly connected to the inner wall of the support frame. A serrated block is provided on the outer side of the rotating sleeve near the front end. The rear surface of the stop block penetrates and is slidably connected to the limiting block. The limiting block and the stop block are elastically connected by a limiting spring. Multiple sets of fixing sleeves and rotating sleeves are provided. In this utility model, by setting the limiting component, the entire device can be fixed at the predetermined osteotomy position using the fixing sleeve and rotating sleeve during cutting, and then cutting can be performed along the cutting groove. This guides the cutting and ensures the flatness of the cut surface.

This invention relates to the field of medical device technology, providing a leg fixation bracket, fixation method, and medical device for knee replacement surgery. The bracket includes a clamping unit and a universal adjustment unit. The universal adjustment unit includes a first ball-head base fixed to the clamping unit, a second ball-head base for connecting a Kirschner wire guide, at least one adjusting rod connecting the two ball-head bases, and a locking mechanism for simultaneously locking the relative positions of the ball-head bases and the adjusting rod. The fixation method includes: fixing the clamping unit to the operating table side rail; releasing the locking mechanism and adjusting the posture to align the Kirschner wire guide with a predetermined insertion point. This invention achieves simultaneous multi-point locking through a single locking mechanism, making operation simple and locking reliable; the clamping unit can clamp bidirectionally to adapt to different operating table side rails; the overall purely mechanical structure requires no electrical components, ensuring high safety and effectively improving the stability and efficiency of knee replacement surgery.

The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical field of medical equipment. The application provides a special walking nursing appliance for hip replacement patients, and relates to the technical filed of medical equipment.

A joint replacement system for repairing an articular surface of a first bone of a joint includes an anchor portion and an implant portion. The anchor portion includes an anchor to be secured to the bone, and an anchor fixation head including a bone-facing surface (BFS) extending radially outward from the anchor and an implant facing surface (IFS) extending from a periphery of the BFS. The implant portion is formed from a material (e.g., CoCr) more dense than the material of the anchor portion (e.g., Ti) and includes a fixation cavity to receive at least a portion of the anchor fixation head (AFH), the fixation cavity includes an anchor facing surface (AFS) configured to form a frictional connection with the IFS, and a load bearing surface having a contour for articulating against a cooperating articulating surface of a second bone of the joint.

The present disclosure provides compositions and methods for preparation of a novel patient-specific entirely biologic living non-knee joint arthroplasty / joint replacement.

Methods and system for characterizing ligament properties using elastography are disclosed. An ultrasound system capable of performing shear wave elasticity imaging and / or supersonic shear imaging may retrieve one or more images from a proposed surgical site. The one or more images may be provided to a surgical planning system that identifies one or more properties of ligaments proximate to the surgical site. Musculoskeletal simulations may be performed using the identified properties to preoperatively identify a surgical plan. Preoperative identification of a surgical plan may enable a surgeon to select from more fine-tuning options for a joint replacement than conventional systems.

The application provides a lumbar posterior joint replacement surgery implant provided with an external connecting assembly, the external connecting assembly comprising an upper connecting assembly and a lower connecting assembly, the middle position of the upper connecting assembly being provided with an upper connecting cover plate, the middle position of the lower connecting assembly being provided with a lower connecting cover plate, the inner side position of the bottom end surface of the upper connecting cover plate being provided with an upper movable boss, and the inner side position of the top end surface of the lower connecting cover plate being provided with a lower movable boss. The application solves the problem that the existing intervertebral fusion cage does not have a structure for assisting the movement of the vertebral body, leading to rigid fixation between adjacent vertebral bodies, so that the adjacent vertebral bodies cannot move relative to each other after the surgery, and only other lumbar segments can be used to complete the local movement of the lumbar vertebrae, reducing the overall movement range of the lumbar vertebrae, increasing the transmission load of the lumbar vertebrae, and causing the patient to be unable to perform normal side bending, flexion and extension movements after the surgery. The application can be widely applied to lumbar posterior joint replacement surgery.

The present application relates to the technical field of computers. Provided are a navigation system and method for shoulder joint replacement surgery. The system comprises a controller and a navigation and positioning apparatus, wherein the controller is in communication connection with the navigation positioning apparatus; and the controller comprises a preoperative planning module, a preoperative simulation module and an intraoperative execution module.

The application relates to a splash-proof device for a swing saw in arthroplasty, which comprises a protective shell, a protective cover, a connecting assembly, a binding assembly and a resistance increasing assembly. The application can solve the problems of sealing and operation portability not considered in the above-mentioned technology. Although the above-mentioned baffle can block part of blood splashing on the surgical personnel, the regional protection of the baffle is not considered. The baffle can only block the side facing the surgical personnel, and has no blocking effect on other directions. Special blood with infection can still splash to other instruments in other directions, causing pollution. In the above-mentioned technology, the baffle needs to be synchronously adjusted with the swing saw. Since the operation is usually a precision operation, the swing saw may present a fine adjustment operation. The synchronous adjustment of the baffle may block the fine adjustment of the swing saw, thereby causing the deviation of the swing saw operation position, and further causing medical accidents and the like.

This invention provides a pressure balance measurement system for knee replacement surgery, including a pressure signal processing device and a force measuring handle connected via a communication cable. The force measuring handle includes a pressure sensor, a housing, and a support structure. The support structure is connected to the housing via a telescopic tube, which has a bifurcated structure. The main rod of the bifurcated structure is connected to the support structure, and the two branches of the bifurcated structure are each connected to a housing. The distance and angle between the two housings and the support structure are adjustable via the telescopic tube. This invention meets the minimum thickness required for clinical use, has a high pressure measurement range and accuracy, high assessment reliability, an efficient and simple structure, provides bilateral pressure measurement, and the measurement points are adjustable, increasing its versatility in clinical application.

The present disclosure relates generally to orthopaedic surgical tools used to cut and / or resect a bone of a patient during an orthopaedic surgical procedure such as, for example, a joint replacement procedure.

Orthopedic systems, methods, and instrumentation for preforming knee arthroplasty. In some embodiments, the systems, methods, and instruments utilized improved quick connect mechanisms such as, for example, snap-fit connectors, to facilitate easier assembly and disassembly of the various components. For example, various connection mechanisms for coupling a tibial base trial to a guide (e.g., a fin punch guide), and / or for coupling the guide (e.g., fin punch guide) to a punch. In use, the systems, methods, and instruments provide an improved workflow for facilitating knee arthroplasty surgery.

A system for joint replacement surgery between bones is described. The positions and shapes of first and second bones in three-dimensional space are determined, the motion of the joint is analyzed to extract a set of maximum spacing parameters, and a set of initial parameters and a set of target gap parameters are obtained. The initial parameters are then iteratively changed between a minimum value and a corresponding maximum spacing parameter, and all other initial parameters are calculated to produce a candidate parameter set. If the candidate parameter set meets the set of target gap parameters, the candidate parameter set is output. If needed, a robotic assisted device can then be controlled in accordance with the candidate parameters to support the joint replacement surgery.

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.

This utility model discloses a precision measuring device for a knee replacement surgery navigation system. The device includes a first test piece and a second test piece. The first test piece includes a first body, at least four support members disposed on the first body, multiple first groove points, and a first optical array. The first end of each support member away from the first body includes a first recess for placing a first laser reflector. The second test piece includes a second body and a second optical array disposed on the second body. The second body includes multiple second groove points and at least three second recesses for placing second laser reflectors. This application, through the first and second recesses for placing the first and second laser reflectors, enables the precision measuring device to be simultaneously located by both the knee replacement surgery navigation system and the laser tracker, thereby allowing the precision measuring device to measure the accuracy of the knee replacement surgery navigation system.