432results about "Acetabular cups" patented technology

A surgical component mounting system is provided that can include a surgical instrument (5) and an intermediate component (20). The surgical instrument can have a proximal end and a distal end (7) that can provide a first part (9) of a mounting. The intermediate component can have a proximal end that can provide a second part (22) of the mounting and a distal end (35) that can be provided with a first part (36, 38a, 38b) of a second mounting such that the first part of the mounting and the second part of the mounting are detachable.

The invention relates to the technical field of medical instruments, and discloses an angle-adjustable artificial hip joint prosthesis structure which comprises a thighbone connecting assembly, an acetabulum connecting assembly and a movable part movably connected between the thighbone connecting assembly and the acetabulum connecting assembly. The thighbone connecting assembly comprises a first connecting unit fixedly connected with the movable part, a thighbone stem detachably connected to the lower end of the first connecting unit, and a connecting screw fixedly connected to the upper end of the thighbone stem and in threaded connection with the first connecting unit. The acetabulum connecting assembly comprises a second connecting unit fixedly connected with the movable part and an acetabulum fixedly connected to the second connecting unit. Stable rotating connection is achieved through the double-shaft moving part, and a traditional easily-abraded spherical surface structure is replaced; the locking assembly is matched to realize personalized angle adjustment and locking; the femoral stem can be detached and replaced, and adaptability is improved; the surface composite coating promotes osseointegration and improves biocompatibility, the overall structure stability is high, adaptability is high, and postoperative recovery is fast.

A system for robot-assisted surgery includes a surgical robot having a robotic arm, an end effector coupled to the robotic arm, wherein the end effector is adapted to receive, translate, and orient a navigated surgical instrument; a camera tracking system adapted to intra-operatively track a pose of the navigated surgical instrument relative to a defined coordinate system; and a computer platform including a processor and a memory. In embodiments, the computer platform operative to display to a user an image of a target location on the patient and the pose of the navigated surgical instrument; and selectively control translation and orientation of the navigated surgical instrument based on a defined operational mode, to perform a surgical process under user control that comprises one or more of: reaming an acetabulum of the patient to a planned center of an acetabular prosthesis, or positioning the acetabular prosthesis in the reamed acetabulum.

The invention provides a hip joint prosthesis which comprises an acetabular cup provided with a containing cavity, the acetabular cup is provided with a first magnetic part and a limiting ring groove, and the limiting ring groove is communicated with the containing cavity; the ball head is rotatably arranged in the accommodating cavity; the clamping ring is arranged outside the equator part of the ball head in a sleeving mode, the ball head can swing relative to the clamping ring, a second magnetic piece is arranged on the clamping ring, the second magnetic piece is matched with the first magnetic piece in a magnetic attraction mode so that the ball head can be connected with the acetabular cup, at least part of the clamping ring swings in the limiting ring groove along with the ball head, and the clamping ring can be matched with the side wall of the limiting ring groove in a limiting mode; and the femoral stem is fixedly connected with the ball head. According to the technical scheme, the problem that in the prior art, the movement range of a hip joint prosthesis is insufficient, and the joint flexibility is affected is effectively solved.

A hip implant system includes an artificial acetabular cup and an artificial acetabular liner. The liner includes or consists of a metal or an alloy, and is coated at least in sections with a ceramic coating.

The invention discloses a data processing method and device for a prosthesis fixing nail, a storage medium and electronic equipment. The method comprises the following steps: performing three-dimensional reconstruction according to medical image data of a target object and an acetabular cup prosthesis to obtain an initial three-dimensional model; according to a current nail hole of the acetabular cup prosthesis in the initial three-dimensional model, generating a first implantation parameter of a first fixing nail; according to the first implantation parameter, performing simulated implantation operation in the initial three-dimensional model to obtain a simulated three-dimensional model; and performing safety evaluation on the simulated three-dimensional model, and determining target implantation parameters of the fixing nails of the acetabular cup prosthesis according to the first implantation parameters under the condition that a safety evaluation result represents that the safety evaluation is passed. According to the method and the device, the problem that the accuracy of determining the implanting position and direction of the fixing nail is relatively low due to the fact that the implanting position and direction of the fixing nail of the acetabular cup are determined depending on artificial experience in related technologies is solved.

Described here are self-contained surgical navigation systems which include a head-worn display device to be worn by a user during surgery. The system includes a display generator for generating a visual display on the display device, and a sensor suite having at least one tracking camera. The system further includes a support module including: a user-replaceable, modular battery that is removably insertable into a housing of the support module, and a processor unit configured to receive data from the sensor suite and calculate a position and an orientation of at least one marker. The support module is electrically coupled to the head-worn display device to provide power and data to the head-worn display device. The display device and the support module together comprise the entire sensing and computing capability of the system, without requiring external sensors, cameras, computers, or other electrical equipment.

A prosthetic acetabular liner including a wall that extends from an apex portion to a circumferential rim portion, the wall having: a convex outer surface; a threaded spigot extending outwardly from the apex portion; a concave inner bearing surface; and an opening surrounded by the circumferential rim portion. The liner is rotatably insertable into an acetabular outer shell having a corresponding threaded apical hole, and rotation of the liner in the shell causes the threaded spigot to engage the threaded apical hole and thereby draw the liner into the shell.

The acetabular cup removal device for artificial hip joints according to an embodiment of the present invention comprises a main shaft and a cutter section that cuts the acetabular region while being rotated by the main shaft. The cutter section includes a cutter tilting unit capable of tilting along the acetabular region around an imaginary tilting axis, a cutter mounting unit coupled to the cutter tilting unit in a manner that allows relative sliding toward or away from the imaginary tilting axis, and a cutter detachably mounted on the cutter mounting unit. The cutter tilting unit comprises a first through-hole penetrating along the imaginary tilting axis, a connecting bar fixed at both ends to the cutter mounting unit, and a leaf spring fixed at both ends to the connecting bar with a central portion between the two ends.

The invention provides an acetabular cup angle and leg length offset measurement system in total hip replacement. A first inertial sensing module detects a first IMU quaternion of a target object; a second inertial sensing module detects second IMU quaternions of the three mark points of the target object and respective coordinates of the thighbone mark points of the target object before and after the replacement; a third inertial sensing module detects a third IMU quaternion of the acetabular cup of the target object; constructing a pelvic bone coordinate system through a calculation module according to the first IMU quaternion and the second IMU quaternion; according to the first IMU quaternion and the third IMU quaternion, the acetabular cup angle under the pelvic bone coordinate system is determined; and determining the leg length offset according to the respective coordinates of the femur mark points before and after the replacement. A plurality of inertial sensing modules are used for measuring and positioning by taking a specific mark point of a human body as a reference, the movement of the acetabular cup can be tracked, the angle of the acetabular cup can be calculated, and the leg length difference before and after an operation is calculated, so that the operation cost is effectively reduced, and the artificial joint implantation precision and the operation efficiency are improved.

Various implementations include an end effector for a total hip arthroplasty (THA) procedure. An example end effector can include: an adapter for holding a surgical instrument, the adapter having an elongate body and a projection extending therefrom; a main body having: a proximal end including an interface for attaching to a robot arm; and a distal end including an elongate recess and a slot for connecting with the surgical instrument; and a connector adapted to secure the projection in the slot to securely attach the adapter to the main body.

The invention provides an acetabulum patch prosthesis, which comprises a base part, a first force bearing concave surface, a second force bearing concave surface and a connecting part, the adjusting part is adjustably arranged on the end wall of the base part, and a second force bearing concave surface corresponding to the first force bearing concave surface is arranged on the side wall of the adjusting part; and the adjusting structure is arranged between the base part and the adjusting part so as to adjust the distance between the base part and the adjusting part. According to the technical scheme, the problem that the universality of the acetabular patch prosthesis in the related technology is poor is effectively solved.

An implant system has an acetabular cup with an interior bearing surface with a central bearing zone that is smooth and devoid of holes or indentations. The cup also has a peripheral bearing zone that contains insertion tool engagement holes. The engagement holes are only present in the peripheral zone and have specific shapes and dimensions. The system includes an insertion tool with retractable interlocks that fit within the engagement holes to position the cup during implantation. The central bearing zone bears the main forces during articulation, while the peripheral zone withstands minor forces. The location of the engagement holes has a negligible effect on the cup's performance. The cup can be made of ceramic and may have a coated exterior surface for osseointegration.

According to the technical scheme, the acetabular cup and the matched tool of the acetabular cup comprise the acetabular cup, the fine adjustment assembly, the liner and the tool. The acetabular cup is arranged on the outermost side, and a first opening is formed in the inner side of the bottom and connected with the fine adjustment assembly; the fine adjustment assembly is arranged between the acetabular cup and the liner and comprises a fixing part and an adjusting part, a second opening is formed in the fixing part, a connecting part is pushed through the second opening to enter the first opening in the acetabular cup to be connected and fixed, and a sliding rail and a fourth connecting part are arranged on the inner side of the fixing part; the adjusting part is a circular ring, the outer surface of the adjusting part is provided with a sliding ball in contact with the sliding rail, the upper surface of the adjusting part is provided with first sawteeth and a worm meshed with the first sawteeth, the two ends of the worm are symmetrically provided with a gear and a fifth connecting part respectively, and the fifth connecting part is hinged to a fourth connecting part on the fixing part to support the worm; second sawteeth are arranged on one side of the outer surface of the gasket and meshed with the gear on the adjusting part, so that deflection of the gasket is achieved.

An acetabular cub system is configured to be secured to a pelvis and may include an acetabular cup and a plurality of bone fasteners. The acetabular cup may include a bone engaging surface and an articulating surface, as well as a plurality of lobed fastener apertures extending from a first opening at the articulating surface to a second opening at the bone engaging surface. The plurality of bone fasteners may be insertable through the lobed fastener apertures to secure the acetabular cup to the pelvis. Each of the plurality of lobed fastener apertures may include a central aperture configured to receive a first bone fastener of the plurality of bone fasteners and one or more aperture lobes intersecting with the central aperture configured to receive a second bone fastener of the plurality of bone fasteners. The central aperture may be larger than the one or more aperture lobes.

The present invention relates to a medical tool holder to which an impactor, a reaming machine, or the like used in surgical operations is attached, and more specifically to a medical tool holder that has a simple and concise structure, satisfies operational stability and durability, and can be used interchangeably. The medical tool holder according to the present invention includes a medical tool having a tool shaft, a holder body having a tool mounting hole formed therein for insertion of the medical tool, and tool holding means for holding the medical tool inserted into the holder body, wherein the tool holding means includes a tool holding and guiding member for holding the tool shaft and guiding its movement.

In another embodiment, a hip joint navigation jig is provided that includes an anatomical interface comprising a bone engagement portion. A registration jig is also provided that is coupled, e.g., removeably, with the anatomical interface. A rotatable member is provided for rotation about an axis that is not vertical when the jig is mounted to the bone adjacent to a hip joint and the registration jig is coupled with the anatomical interface. An anatomy engaging probe is coupled with the rotatable member for rotation about the axis and is translatable to enable the probe to be brought into contact with a plurality of anatomical landmarks during a procedure. An inertial sensor is coupled with the probe to indicate orientation related to the landmarks, the sensor being disposed in a different orientation relative to horizontal when the probe is in contact with the landmarks.

A three-dimensional (“3D”) printed orthopedic fixation implant can reduce stress shielding and / or enhance osseointegration. The implant can include: a head defining a proximal end of the implant; a tip defining a distal end of the implant; a core extending from the head to the tip, the core being elongate; and threads extending along at least a portion of the core. One or more functionally graded lattice structures can be propagated longitudinally and / or radially in at least portions of the core. A density of the one or more functionally graded lattice structures can have a varying longitudinal gradient and a varying radial gradient.

A hip joint navigation system is provided that includes a base having at least one channel disposed therethrough for receiving a pin for mounting the base to the pelvis. A mount feature is disposed on a top surface. A registration jig is configured to couple with the base and to engage anatomical landmarks. In some aspects, a patient specific jig system for hip replacement is provided including an engagement surface formed to closely mate to acetabular bone contours of a specific patient and a registration feature configured to be in a pre-determined orientation relative to an acetabulum the patient when the jig is coupled with acetabular bone contours of the specific patient. In other aspects, methods of using the systems are provided.

A method includes displaying, on a graphical user interface, a planned position of a virtual implant model relative to a virtual bone model of a bone. The virtual implant model includes a plurality of virtual screw holes offset from a central axis of the virtual implant model. The method also includes determining a planned rotational orientation of the virtual implant model by rotating, on the graphical user interface, the virtual implant model about the central axis of the virtual implant model such that the plurality of virtual screw holes rotate about the central axis. The method also includes controlling a robotic device to guide preparation of the bone to receive a physical implant in the planned position. The method also includes providing computer-assisted navigation configured to guide the physical implant into physical rotational alignment with the planned rotational orientation of the virtual implant model.

Methods provide computer-navigation assisted total hip arthroplasty (THA) procedures. Such procedures include the use of a navigated instrument, e.g., a navigated reamer construct or a navigated inserter construct to prepare the acetabulum and insert an acetabular shell, a camera tracking system adapted to track a pose of the navigated inserter or reamer construct relative to the patient in use, and a computer platform adapted to receive pose tracking information and generate and display navigational guidance for the user.

A method of treating a patient in need of an orthopedic implant is described. The method includes obtaining the T-score or bone density of the patient's native bone at a site of implantation, said T-score or bone density being determined by a DEXA scan or other means of determining a T-score or bone density. The method further includes selecting an orthopedic implant that has about the same density as the native bone at the site of implantation, and implanting the orthopedic implant at the site of implantation.

An apparatus and method for inserting a femoral broach or femoral stem or acetabular cup into a bone. The apparatus includes at least one closed loop insertion mechanism to provide impacts on the associated handles of the broach, stem, or the acetabular cup; at least one sensor to sense a series of impacts, including impact angle, and to provide real-time feedback of the alignment and / or condition of the bone; and a processor operably connected to the at least one sensor. The processor includes an algorithm that receives the real-time feedback to control the force, frequency, and alignment of the impacts by the at least one closed loop insertion mechanism.

A hip navigation system is provided that includes a navigation device comprising one or more sensors configured to sense changes in orientation and rotation, a reference sensor device comprising one or more sensors configured to sense changes in orientation and rotation, and a femur sensor device comprising one or more sensors configured to sense changes in orientation and rotation. The hip navigation system is provided for navigating a cup toward target angles. The hip navigation system is provided for determining changes in leg length and / or joint offset. Methods of using the hip navigation system are provided. A graphical user interface of the navigation device is provided.

SUMMARY OF THE INVENTION An improved system and method for providing proper alignment of a patient's anatomy and hip joint components during hip replacement surgery is provided. In another embodiment, a hip joint navigation tool is provided that includes an anatomical joint surface with a bone-engaging portion. A registration tool is also provided that is coupled, e.g., removably, to the anatomical joint surface. A rotatable member is provided for rotation about a non-vertical axis when the tool is attached to a bone adjacent the hip joint and the registration tool is coupled to the anatomical joint surface. An anatomical structure-engaging probe is coupled to the rotatable member for rotation about the axis and is translatable so that the probe can be brought into contact with multiple anatomical landmarks during surgery. An inertial sensor is coupled to the probe to indicate an orientation relative to the landmarks, the sensor being disposed at a different orientation relative to the horizontal when the probe is in contact with the landmark.

The invention provides an adjustable acetabulum prying-out experimental device, and belongs to the technical field of combined acetabulum component separation experiments. A T-shaped sliding groove is formed in the lower end of the eccentric prying-out base and used for being fixedly connected with a workbench through screws; the crow plate lifting device comprises a lifter support, a connecting block, a threaded lifting rod, an adjusting nut, a first M6 thread and a sliding block, and modularization and function cooperation of the testing system are achieved by integrating the eccentric prizing base, the crow plate lifting device, the acetabulum assembly loading device and the adjustable crow plate device; by means of the structural design, the device can meet the multi-dimensional adjustment requirements of the moment arm distance, the supporting point position and the height at the same time, and the problem that a traditional device is insufficient in adaptability due to the single structure is solved. Precise cooperation among the components not only improves operation flexibility, but also ensures structural stability in the testing process through high-strength connection.

An apparatus, system, and method for determining a position of a hip prosthesis in a bone of a patient includes determining a set of contact points between a femoral head of a femoral prosthesis and a cup liner of an acetabular cup to be implanted into a patient based on a mechanics model. The mechanics model is indicative of mechanical motion of a hip exhibited during performance of a set of ADL or at corresponding functional positions of the patient. In some embodiments, a mathematical model may be generated based on a plurality of sets of contact points determined using the mechanics model and subsequently used to determine a resultant set of contact points.

The invention provides a 3D printing winged acetabular cup and a preparation method thereof.The 3D printing winged acetabular cup specifically comprises an acetabular cup body which is a hollow hemisphere and a guide rail groove, the guide rail groove is an annular groove and is formed in the bottom of the acetabular cup body, and the guide rail groove is provided with an outer side sliding rail and an inner side groove; a second screw hole is formed in the wing plate, and an expansion component is arranged at the front part of the wing plate; the connecting device comprises a connecting rod, and the connecting rod is arranged between the sliding ball and the wing plate; the sliding ball is a hollow ball body with an opening in the surface and is arranged on the outer side sliding rail; a limiting ball is further arranged on the left side in the sliding ball, and pushing rods are arranged in the right side of the sliding ball, are symmetrically arranged up and down and are hinged to the connecting rod; a fixing device is further arranged in the sliding ball. According to the technical scheme, the problems that after the winged acetabular cup is implanted into the human body, the wing plate cannot deal with the complex bone defect condition, and the stability of the prosthesis is insufficient are effectively solved.

The invention belongs to the technical field of medical equipment, and discloses a non-image hip replacement navigation system and method based on transverse ligament positioning, and the system comprises a navigation positioning module, a human body horizontal plane and central axis positioning module, a transverse ligament spatial position positioning module and an acetabulum reconstruction module; the navigation positioning module is used for positioning the pose of the surgical instrument in real time; the human body horizontal plane and central axis positioning module is used for calculating an abduction angle and a front inclination angle; the transverse ligament spatial position positioning module is used for planning the shape and position of the acetabular prosthesis; and the acetabulum reconstruction module is used for implanting a prosthesis according to an intraoperative plan. According to the method, the position of the prosthesis is planned by positioning the acetabular transverse ligament, accurate intraoperative guidance is provided for acetabular grinding and prosthesis placement of a doctor, and the problems that an existing navigation system highly depends on preoperative images and intraoperative registration, so that hip replacement is complex in operation, low in efficiency and the like are solved.

The invention relates to a method and device for displaying the position of an acetabular cup in total hip replacement, computer equipment, a storage medium and a computer program product, relates to the technical field of medical equipment, and can improve the efficiency of determining the implantation state of the acetabular cup by an operator. The method comprises the steps that an acetabulum virtual image is constructed according to user image data, concave point marking points of an acetabular fossa in the acetabulum virtual image are determined, and the concave point marking points are used for marking concave point features of the acetabular fossa; real-time pose data of the acetabular cup implanted into the acetabular fossa is received, a salient point mark point of the acetabular cup is determined according to the real-time pose data, and the salient point mark point is used for identifying salient point features of the acetabular cup; and calculating the distance between the concave point marking point and the convex point marking point in real time, and carrying out visual display on the acetabular cup pose in the acetabular virtual image according to the distance.