187 results about "Hip socket" patented technology

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

A system for computer assisted navigation during surgery includes a computer platform that operates to register a target surgical area of a patient. In certain cases, a process includes: obtaining a pre-op CT image of a pelvic region of a patient and intra-operatively obtaining a point cloud data about the pelvic region with a navigated instrument, generating a 3D bone model which excludes non-targeted area such as a femur, and then merging the 3D bone model to the point cloud to register the target surgical area.

The invention discloses a hip replacement lower limb equal-length control system and method based on individualized three-dimensional modeling. The hip replacement lower limb equal-length control system comprises a data preprocessing module, a medical image processing module, a dynamic implantation simulation module, a biomechanical analysis module, a guide plate generation module and a postoperative evaluation module. The method comprises the following steps: acquiring bilateral lower limb CT data and carrying out multi-modal registration; segmenting a skeleton structure by using a deep learning model, and constructing a three-dimensional model; reconstructing a complete sphere through affected side femoral head multi-plane fitting, and determining a target femoral head center in combination with uninjured side mirror image data; dynamically adjusting the space posture of the prosthesis to enable the center of the prosthesis head to coincide with the center of the target; performing finite element analysis to optimize stress distribution; and generating a 3D printing file of the individualized osteotomy guide plate and the positioning pointer. According to the method, preoperative accurate planning, intraoperative real-time control and postoperative quantitative evaluation are achieved, the operation precision is effectively improved, and complications of unequal lengths of lower limbs are avoided.

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 relates to the field of medical image processing, in particular to a cross-modal medical image alignment method based on anatomical feature one-dimensional distribution, and the method comprises the steps: obtaining a computed tomography (CT) image sequence and a magnetic resonance imaging (MRI) image sequence of a hip joint region of a patient; extracting a CT one-dimensional anatomical feature sequence representing the morphological change of the first side femoral head from the CT image sequence; extracting an MRI one-dimensional anatomical feature sequence representing the morphological change of the first side femoral head from the MRI image sequence; based on the CT one-dimensional anatomical feature sequence and the MRI one-dimensional anatomical feature sequence, a similarity alignment process is executed; wherein the similarity alignment process comprises the following steps: determining an optimal similarity alignment offset between a CT image sequence and an MRI image sequence, and aligning the MRI image sequence and the CT image sequence according to the optimal similarity alignment offset. According to the method, the cross-modal image alignment problem is subjected to dimensionality reduction into one-dimensional anatomical feature sequence matching, so that the precision, efficiency and robustness of registration are remarkably improved.

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.

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.

The utility model discloses an acetabular cup taking-out device for a hip joint revision operation, and belongs to the technical field of medical instruments. Comprising a grab handle, a power input shaft and an output shaft are rotationally arranged on the two sides of the grab handle respectively and fixedly connected, a positioning ball capable of rotating along with the output shaft is arranged at the end of the output shaft, a movable arc-shaped blade is detachably arranged on the outer side of the positioning ball, and the arc-shaped blade can turn to the bottom of the positioning ball. A blade adjusting assembly capable of driving the arc-shaped blade to move is arranged on the output shaft. The acetabular cup taking-out device for the hip joint revision operation is simple in structure and convenient to operate, the complex hip joint revision operation is simplified, accurate cutting with a predictable result can be conducted by designing the arc-shaped blade with the replaceable size, meanwhile, bone loss can be reduced to the maximum extent, the operation effect is improved, and the hip joint revision operation efficiency is improved. The risk of acetabular fracture in the operation is also reduced, and the practicability is high.

Methods include tracking one or more of a leg length or an offset in a patient during a total hip arthroplasty (THA) procedure performed using a navigated surgical system, with an expandable trial femoral assembly. Certain methods include registering a pelvis of the patient to the navigated surgical system; and in various embodiments measuring a leg length or registering a femur to the navigated surgical system. An expandable trial femoral assembly is affixed to a prepared and broached femur of the patient; and the expandable trial femoral assembly is reduced into an acetabular prosthesis. A navigated driver may then be used to adjust an expansion extent of the expandable trial femoral assembly. The navigated surgical system may measure the leg length and the offset in the patient based on the movement of a reference element of the femur relative to a reference element of the pelvis.

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.

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.

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 application provides a hip joint measuring device, which comprises a first rod body, a strip-shaped hole penetrating through the first rod body along the length direction of the first rod body, the strip-shaped hole and a first scale value being arranged at intervals in the circumferential direction of the first rod body, and a connecting sleeve movably sleeved on the first rod body. A second rod body is sleeved in the connecting sleeve and the strip-shaped hole, a first rod section is provided with a second scale value along the length direction of the first rod section, a first locking member is arranged between the connecting sleeve and the first rod body, a second locking member is arranged between the first rod section and the connecting sleeve, a horizontal measuring structure is arranged at the second end of the first rod body, a sleeve part is fixedly arranged on the horizontal measuring structure and sleeved on the first rod body, the sleeve part is provided with a third scale value along the circumferential direction of the sleeve part, and an indicating part is arranged on the first rod body and arranged in correspondence with the third scale value. The technical scheme of the application effectively solves the problem that the length of the lower limb, the eccentric distance and the flexion angle cannot be synchronously measured in the related art.

The present application relates to a method for extracting an acetabular facies lunata model, in particular to a method for extracting an acetabular facies lunata model based on mixed surface fitting, which solves the technical problem of low precision and robustness of the existing method for extracting an acetabular facies lunata model. The present application realizes rough extraction of the acetabular facies lunata model through spherical surface fitting, and then realizes accurate extraction of the acetabular facies lunata model in combination with ellipsoidal surface fitting, which combines the stability of spherical surface fitting and the anatomical fidelity of ellipsoidal surface fitting. In particular, in the case of complex pathologies such as hip dysplasia, the present application can still maintain high extraction accuracy, and improve the accuracy and reliability of clinical diagnosis and surgical planning. Meanwhile, in the iteration process of ellipsoidal surface fitting, an adaptive fault tolerance threshold is introduced, which effectively solves the problems of sensitivity to noise and strong parameter dependence of traditional methods, and has better robustness in processing complex acetabular morphology.

The application relates to a hip joint prosthesis, which comprises an interposition acetabulum prosthesis and a femoral head reconstruction device. The interposition acetabulum prosthesis is connected with the acetabular fossa of the pelvis stably through an interposition acetabulum cup, a fixing screw and an interposition acetabulum liner, and the adaptability and stability are enhanced through multiple designs such as petal opening and damping parts; the femoral head reconstruction device comprises a joint friction surface prosthesis and a bone ingrowth support cage, and the reconstruction and stable support of the femoral head are realized. The application achieves the technical effects of improving the stability and durability of the hip joint prosthesis, reducing the postoperative discomfort of patients and promoting the growth of bone tissue.

A hip prosthesis that comprises an acetabular component and a femoral component. The acetabular component comprises a shell having an approximate shape of a hollowed spherical cap, and optionally comprises a liner. The femoral component comprises a stem portion, a neck portion that is joined to the stem portion, and a spherical head that is affixed to the neck portion. The acetabular component is configured to receive all or a portion of the spherical head of the femoral component. Further, the acetabular component comprises one or more magnets, and the femoral component comprises a spherical magnet that is rotatable within the spherical head, such that the one or more magnets of the acetabular component and the spherical magnet of the spherical head of the femoral component are oriented to generate an attractive force therebetween.

The invention discloses a femoral head necrosis prediction system and method based on Transform, and belongs to the technical field of image processing, the system comprises a data acquisition module, a data processing module, a data balancing module, a feature extraction module, a feature merging module and a necrosis classification module; the method comprises the following steps: acquiring preoperative hip joint CT data, pre-processing to unify specifications, adopting directional data enhancement to solve the problem of class imbalance, extracting features by virtue of Video Swin Transform, merging and modeling a spatial relationship through volume blocks, and finally outputting a necrosis classification result. According to the femoral head necrosis prediction system and method based on Transform provided by the invention, the prediction accuracy and robustness are effectively improved, the problem of model instability caused by strong subjectivity, hysteresis and data imbalance in the prior art is solved, an objective and efficient prediction tool is provided for clinic, and the risk of postoperative complications is reduced.

The application provides a surgical robot system and control method for proximal femur osteotomy, the system comprises: a preoperative planning module for constructing a hip joint three-dimensional model and performing preoperative planning according to the hip joint three-dimensional model to generate a proximal femur osteotomy scheme, which is one of a femoral head rotation osteotomy scheme, a femoral neck rotation osteotomy scheme, an intertrochanteric rotation osteotomy scheme and a subtrochanteric rotation osteotomy scheme; a navigation positioning module for registering the entity femur in operation and the hip joint three-dimensional model before operation according to an optical positioner and an optical positioning frame to map the proximal femur osteotomy scheme, real-time tracking the pose of the surgical tool and the entity femur, and displaying and comparing the proximal femur osteotomy scheme and the real-time osteotomy process on a display screen. In the application, the preoperative planning-intraoperative optical positioning navigation can track the osteotomy condition of the surgical tool in real time during operation, and multiple medical imaging is avoided, thereby greatly improving the surgical effect.

The invention relates to the technical field of medical data processing and intelligent decision-making, in particular to an auxiliary decision-making data processing system for a pediatric hip joint surgery anesthesia scheme, which comprises a multi-dimensional state acquisition module for synchronously acquiring perioperative period physiological signs and environmental event data; the causal decoupling analysis module is used for decomposing the physiological signal fluctuation into nociceptive stimulation, drug inhibition and volume deficiency components; the compensatory reserve evaluation module is used for generating a quantized system compensatory reserve index based on the causal attribution vector; the risk game decision module is used for constructing a multi-target dynamic game model and generating a control strategy according to an interval where an index is located; the proportion optimization output module is used for calculating dynamic proportion parameters aiming at different regulation and control variables and generating a decision instruction; according to the method and the system, latent hemorrhage or vagus nerve reflex can be effectively identified, wrong medication during compensation depletion is avoided, and the safety of a high-risk operation is remarkably improved.

An image diagnostic device (100) comprises: a bony acetabular line detection unit (153) that detects, on the basis of a pixel value of each pixel of an ultrasonic image acquired by an acquisition unit (152), a bony acetabular line in the ultrasonic image; and a baseline detection unit (154) that detects, on the basis of the pixel value of each pixel of the ultrasonic image acquired by the acquisition unit (152), a straight line indicating an iliac outer wall in the ultrasonic image and detects a baseline parallel to the detected straight line indicating the iliac outer wall and passing through a bony acetabulum or a lower end of the iliac outer wall at an end portion of the bony acetabular line detected by the bony acetabular line detection unit (153).

The application discloses a kind of artificial hip joint fatigue test device, including frame, it is characterized in that: the bottom of the frame is provided with Z direction oil cylinder, the top of Z direction oil cylinder is connected with the bottom of simulated acetabulum seat, the middle part of frame is provided with middle support plate, the middle support plate is provided with guide sleeve, the simulated acetabulum seat is slidably connected between linear bearing and guide sleeve, the top of the simulated acetabulum seat is provided with lubricating liquid cup and simulated acetabulum, the simulated acetabulum is located inside lubricating liquid cup, the simulated acetabulum is connected with artificial femoral head spherical surface in artificial hip joint, the top of the frame is provided with top support plate, top support plate is provided with horizontal displacement mechanism, and the execution end of horizontal displacement mechanism is movably connected with the top of artificial femoral stem in artificial hip joint by universal joint.

To provide image processing programs and the like that can generate image data and images that enable more adequate evaluation and diagnosis than conventional methods. [Solution] The present invention's image processing program is characterized by causing a computer to execute the following: an image acquisition process in step S305, which acquires a plurality of image data obtained by performing CT scanning of the hip joint of a subject; an image generation process in step S310, which generates display image data for displaying a predetermined image on a display device based on the plurality of image data acquired in the image acquisition process in step S305; and a first region identification process in step S320, which identifies a first region that is a necrotic area of ​​the femur surrounded by a plurality of image data corresponding to the femur, where the CT value is greater than that of a normal bone, based on the display image data of the femur in the hip joint generated in the image generation process in step S310.

1. Name of the product in this design: Icons for the graphical user interface of a robot-assisted surgical system for electronic devices. 2. Purpose of this design: An electronic device. 3. The key design features of this product are: a graphical user interface drawn with solid lines. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: This overall interface is used to operate the robot-assisted surgical system, such as operating the robot-assisted surgical system to perform hip replacement surgery. The area to be protected is the icon on it, and different icons are selected to display different images or patterns on the screen. For example, selecting icon A will display a visualization of the main components and screws previously implanted in the patient; selecting icon B will allow you to use a probe to draw the surface of the acetabular cup after the implanted components have been removed, at which point the interface will display a visualization of the pelvis and the real-time position of the probe; selecting icon C will allow you to use a reamer to evaluate the surface of the acetabular cup after the implanted components have been removed, at which point the interface will display a visualization of the pelvis and the real-time position of the reamer. 6. Human-computer interaction methods of graphical user interface: Interaction can be carried out by clicking, pressing icons, etc. 7. Other situations requiring explanation: This design is a partial appearance design, and the part shown by the dashed line in the view is not the part claimed in this application.

Disclosed in the present disclosure are an acetabular prosthesis angle positioning device for total hip arthroplasty. The device includes a telescopic tripod, a spherical scale instrument, a first fixing member, a main operating rod, a connecting device and an auxiliary operating rod. The spherical scale instrument includes a transparent spherical housing and a connecting ball clamped in the transparent housing, scale marks are arranged on the transparent spherical housing, and mark points fitted to the scale marks are arranged on the connecting ball; the main operating rod is connected to the connecting ball; and the main operating rod is connected to the auxiliary operating rod through the connecting device, and the auxiliary operating rod is hollow.

The utility model discloses an acetabular fossa positioning tool for hip joint surgery, and relates to the technical field of total hip joint replacement. The damping device comprises a mounting frame, a mounting hole is formed in one side of the mounting frame, a damping ball joint is mounted on one side of the mounting frame, a ball body is mounted in the damping ball joint, a connecting rod is fixedly connected to one side of the ball body, a supporting rod is arranged on one side of the connecting rod, and the supporting rod is fixedly connected to the other side of the mounting frame. An extension rod is arranged on one side of the supporting rod, and a fixing shell is arranged on one side of the extension rod. According to the utility model, the pressing block is pressed downwards, the spring is compressed under stress, then the pressing block descends into the positioning groove, and then the extension rod is dragged to enable the movable rod to move in the supporting rod in a limited manner; and the pressing block is moved to the interior of the next clamping groove and then is reset to the interior of the clamping groove by virtue of the elasticity of the spring, so that the current extending distance is positioned, and the effect of conveniently adjusting the use length is achieved.

A hip balancing sensor system with an integrated ratcheting adjustment mechanism is provided for determining an optimal femoral head offset during hip arthroplasty. The system includes a femoral head offset tool with a head containing a chamber and a collar configured to attach to a femoral stem. The tool comprises force sensors, an IMU, and a spring system configured to automatically adjust femoral head offset by moving the head relative to the collar within a chamber of the head until force equilibrium is achieved. The head is configured to interface with various acetabular structures including acetabular cups, native acetabulum, or acetabular defects. A sensing controller monitors the adjustment process and detects when spring force equals soft tissue resistance indicating optimal positioning. Upon achieving equilibrium, the surgeon measures the femoral head offset distance using a sizing tool and selects a permanent femoral head implant.