36 results about "Hip socket" patented technology

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 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 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 application belongs to the technical field of wearable exoskeleton devices, and provides a wearable exoskeleton device suitable for rehabilitation training of infants with congenital cerebral palsy and an exoskeleton control method. The device comprises a wearable exoskeleton device main body, hip joint drives symmetrically arranged on the left and right sides, knee joint drives, ankle joint drives, a controller and multiple groups of sensors. The controller stores joint target trajectory data corresponding to multiple training modes, retrieves corresponding trajectory data based on the selected training mode and generates control instructions to actively drive the affected lower limbs to move. The multiple groups of sensors comprise electromyography sensors, inertial measurement units and pressure sensors. The controller identifies abnormal movement modes such as combined responses and extensor spasticity based on sensor signals and dynamically reduces the drive control gain to release abnormal stress in a compliant manner. The application realizes multi-mode active guidance training and asymmetric assistance for infants with congenital cerebral palsy, and has the ability of abnormal mode identification and safe compliant response.

The application provides a lower limb muscle strength prediction and balance function evaluation method based on plantar pressure and spatial pose fusion, comprising: collecting plantar pressure data, lower limb spatial pose data and human individual physiological parameters of a subject, and combining a force platform to obtain ground reaction force data; real lower limb muscle strength is calculated by using inverse dynamics and Hill muscle model, and a plantar pressure + spatial pose-lower limb muscle strength data set is constructed; the optimal sensor quantity and layout are obtained by combining a heuristic optimization algorithm and a machine learning regression model, taking prediction accuracy and information redundancy as indexes; a deep forest model is trained based on fusion features, real-time prediction of hip joint, knee joint and ankle core muscle group muscle strength is realized; further, muscle strength symmetry analysis, weak muscle group identification and hip-knee-ankle force ratio analysis are completed, and multi-dimensional quantitative evaluation of balance function is completed. The method can realize high-precision lower limb muscle strength prediction under limited sample conditions, and output multi-dimensional balance function evaluation results.

This application belongs to the field of medical prosthetic structure design technology, specifically disclosing a hip joint assembly and a powered hip disarticulation prosthesis. The hip joint assembly includes an arc-shaped slide rail, a hinge, a slider, a thigh motor, and a linkage structure. The arc-shaped slide rail is fixed to the lower part of the residual limb receiving cavity, with its arc-shaped opening facing upwards. The first part of the hinge is fixedly connected to the outer side of the residual limb receiving cavity. The slider is slidably disposed on the arc-shaped slide rail. The housing of the thigh motor is fixedly connected to the slider. One end of the linkage structure is connected to the second part of the hinge, and the other end is driven and connected to the output shaft of the thigh motor. This application forms a remote motion center that approximately coincides with the actual acetabulum position, enabling the prosthetic thigh to move around a rotation center close to the anatomical position of the human acetabulum, thereby improving gait naturalness and control performance, and solving gait deformity and compensatory movement problems.

A horizontal lower limb rehabilitation robot includes a horizontal rigid chassis, left and right lower limb training mechanisms symmetrically arranged on both sides of the rigid chassis, an electrical control unit, and a multimodal sensing system located at key locations. The left and right lower limb training mechanisms have identical symmetrical structures. The electrical control unit coordinates the movement timing and amplitude of the hip and knee joint drive units, enabling simultaneous flexion training of the hip, knee, and ankle joints, bridging training to activate the lower limb trunk and gluteal muscles, and gait training simulating natural walking. This robot features a rational structure, convenient adjustment, safety, comfort, and intelligence. Through intelligent control and multiple rehabilitation training modes, it can meet the training needs of patients at different rehabilitation stages and with different body types, achieving integrated rehabilitation training and effect evaluation, and providing a more efficient and safer intelligent device for lower limb rehabilitation treatment.

The present application relates to a kind of 3D printing polylactic acid support for establishing hip joint impact syndrome animal model, the support includes circular arc front wall, circular arc back wall, left side wall, right side wall, top wall and bottom wall, the circular arc front wall and circular arc back wall are oppositely spaced, the left side wall and right side wall are oppositely spaced, the top wall and bottom wall are oppositely spaced, the top wall is provided with first side hole and second side hole, the first side hole and second side hole are both through hole from top wall to bottom wall;The vertical distance between the center of the first side hole and left side wall is less than the vertical distance between the first side hole and right side wall;The vertical distance between the second side hole and right side wall is less than the vertical distance between the center of the second side hole and left side wall.

Embodiments of the present disclosure provide a method for treating developmental dysplasia of the hip. The method includes administering a therapeutically effective amount of a pharmaceutical composition to a subject suffering from the developmental dysplasia of the hip. The pharmaceutical composition includes a substance capable of inhibiting expression of Midkine (MDK), and the substance capable of inhibiting the expression of MDK is Midkine inhibitor (IMDK).

The application provides a femoral stem prosthesis for severe hip dysplasia, which comprises a first section and a second section which are integrally formed and distributed along the up-down direction, the first section is used for penetrating and press-fitting in the proximal segment of the femur, and the second section is used for inserting and press-fitting in the distal segment of the femur. The first section and the second section adopt a tapered structure, which can improve the axial stability, and the rotation-stopping structure outside the first section and the second section can limit the relative rotation of the prosthesis and the femur. The second section of the femoral stem prosthesis can select a suitable size according to the actual situation of the femur of the patient, so as to improve the stability of the connection, when the second section is stably connected with the distal segment of the femur, the proximal segment of the femur is press-fitted with the first section, and finally the femoral stem prosthesis is continuously pressed, so that the cross section of the distal segment of the femur and the proximal segment of the femur is in contact and sufficient pressing force is provided.

The application discloses a positioning guide and an additive manufacturing method thereof. The positioning guide is used for hip arthroplasty and comprises a positioning base, a main guide structure and first and second guide piles arranged on both sides of the main guide structure. The positioning base comprises first and second fitting parts respectively fitted with local bony surfaces on both sides of a patient's acetabular notch and a connecting part connecting the first and second fitting parts. The main guide structure is arranged on the connecting part and has a guide channel for accommodating a handle of a surgical tool to exert geometric constraint on a placement direction of an acetabular reamer tool. The guide channel is determined according to an acetabular cup designed to a target anatomical position and a simulation handle arranged in association with the acetabular cup. The first and second guide piles are used for guiding the arrangement of Kirschner wires to fix the positioning guide to the acetabular region of the patient, thereby improving the accuracy and stability of acetabular polishing and acetabular cup implantation.

The application provides a method and device for registering an intraoperative hip joint in a patient space and an image space, electronic equipment and a computer readable storage medium. The registration method comprises: performing a translation transformation according to a first acetabular rotation center fitted in the image space and a second acetabular rotation center fitted in the patient space; performing a first rotation transformation according to the angle between a first reference vector formed by a first anterior superior iliac spine and the first acetabular rotation center in the image space and a second reference vector formed by a second anterior superior iliac spine and the second acetabular rotation center in the patient space; and performing a second rotation transformation according to the rotation angle of a group of points formed by points selected on both sides of the first reference vector in the image space and corresponding points in the patient space. The fitting of the acetabular rotation center improves the accuracy of the translation transformation. The rotation transformation is performed by the reference vector formed by the feature significant anterior superior iliac spine and the acetabular rotation center, which further improves the accuracy of the rotation transformation.

A safety broach for use in arthroplasty for hip joints, and a system including the same. The system may further include a segmented or otherwise flexible reamer and an implant. The safety broach includes a hollow interior passage that serves to guide the reamer when the safety broach is in place in the bone. The system may include any number of sizes of safety broaches, segmented reamers, and implants. In any case, such a safety broach may be capable of assisting with arthroplasty for hip joints (or any other joint), while typically providing enhanced safety and reliability of the arthroplasty.

This utility model relates to a leg exercise device for neurological rehabilitation, belonging to the technical field of leg exercise devices. It includes a seat assembly and two symmetrically arranged leg training mechanisms. Each training mechanism includes a control component and a training component. The training component includes a hip joint mechanism hinged to the seat assembly, a large arm guard hinged to the hip joint mechanism, and a forearm guard hinged to the distal end of the large arm guard. Servo direct drive mechanisms are provided at both the hip and knee joint hinges. A magnetorheological fluid rotary damper is coaxially arranged at the knee joint hinge. A travel limit sensor and a torque sensor for muscle tension detection are provided at the hinge. The servo direct drive mechanism, the magnetorheological fluid rotary damper, and the torque sensor are all electrically connected to the control component. It features a built-in passive, assisted active, and resistance-enhanced three-level training mode and bilateral independent operation. This utility model, through its three-level training mode, can cover the training of patients with lower limb motor dysfunction in neurology, lowering the rehabilitation threshold for patients.

The present application relates to a method for planning placement of an acetabular shell in a total hip arthroplasty (THA) procedure. Functional alignment of a 3D image of a pelvis includes identifying reference points on each 2D image of a weight-bearing pelvis, identifying corresponding reference points on a 3D image of the pelvis in a non-weight-bearing position, constructing a reference on the 2D images based on the reference points on each respective 2D image, constructing a corresponding reference on the 3D image based on the reference points on the 3D image, and aligning the corresponding reference of the 3D image with the references of the 2D images to provide a functionally aligned 3D image to more accurately plan placement of the acetabular shell.

The application discloses a mold for hip joint femoral stem finish forging, which comprises a lower mold base and an upper mold base installed above the lower mold base, the upper end middle part of the upper mold base is connected with the extension end of a cylinder, the opposite surfaces of the upper mold base and the lower mold base are respectively fixed with an upper mold core and a lower mold core, the lower end corner of the upper mold base is fixed with an upper guide column which is inserted into a guide sleeve on the lower mold base, the upper end middle part of the lower mold base is provided with a movable plate, the upper end of the movable plate is fixed with a top rod, the upper end side of the top rod is provided with a gas injection hole, and the top rod is used for ejecting the formed piece after forging in the lower mold core. The mold for hip joint femoral stem finish forging is provided with cooling channels, the flow of air in the cooling channels is used for cooling the mold, the air after heat exchange carries part of heat into the cavity, the workpiece is assisted in demolding through the action of the air flow, and after the air after heat exchange contacts the high-temperature forged piece, the forged piece can be prevented from being cracked and warped due to rapid cooling.

The present application relates to the technical field of exoskeleton control, and discloses an exoskeleton gait adaptive adjustment method based on terrain pre-perception, comprising: acquiring real-time data of an inertia measurement unit and a distance sensor at a foot and a lower leg, including acceleration, angular velocity and foot-ground distance; fusing to generate a foot posture angle change sequence, a foot-ground distance change rate, a hip joint angle and a knee joint angle; calculating a tilt angle and a change trend of a front ground according to the posture angle change sequence and the distance change rate, and predicting a slope change in a future gait cycle; determining a current gait phase according to the hip and knee joint angles; calculating an adjustment amount of joint torque required to maintain the stability of the center of gravity based on the tilt angle, the slope change and the gait phase; generating and executing control instructions at different times in the next gait cycle to drive the joint motor to output auxiliary force. The present application can predict the front slope before the foot touches the ground and adjust the assistance strategy in advance, maintain the stability of the center of gravity, and reduce the risk of falling.

It is an objective to provide accurate measurements of a patient's leg length and joint offset, and to provide for those leg lengths and joint offsets to be visualized using conventional equipment. [Solution] A hip joint navigation system is provided that includes a base having at least one channel disposed therethrough for receiving a pin for attaching the base to a pelvis. An attachment feature is disposed on the upper surface. A registration jig is configured to couple with the base and engage an anatomical landmark. In some aspects, a patient-specific jig system for hip joint replacement is provided that includes an engagement surface configured to closely mate with the acetabular bone contour of a particular patient and a registration feature configured to be in a predetermined orientation relative to the patient's acetabulum when the jig is coupled with the acetabular bone contour of the particular patient. In other aspects, a method of using the system is provided.

This invention provides a hip joint assisted detection method and apparatus based on multi-task learning. The method includes: acquiring a standard planar ultrasound image of the hip joint to be analyzed; extracting hip joint features from the standard planar ultrasound image based on a preset shared representation module to obtain a multi-scale feature map corresponding to the standard planar ultrasound image; performing multi-task collaborative processing on the multi-scale feature map corresponding to the standard planar ultrasound image based on a preset multi-task collaboration module to obtain a segmentation structure map, skeletal key points, and Graf lines corresponding to the standard planar ultrasound image; and performing multi-task cross-enhancement processing on the segmentation structure map, skeletal key points, and Graf lines based on a preset cross-enhancement module to obtain the corresponding detection results. The hip joint assisted detection method based on multi-task learning provided by this invention can effectively improve the automation, detection speed, and robustness of assisted detection of hip joint images.

The application relates to a hip joint ultrasound standard surface screening and measuring method and device based on key point detection and time sequence consistency, and the method comprises the following steps: acquiring a hip joint ultrasound image sequence; detecting a plurality of anatomical key points in the ultrasound image, outputting a multi-channel response heat map, and obtaining anatomical key point coordinates; constructing a comprehensive consistency scoring function based on the anatomical key points and the time sequence change of adjacent frames of the hip joint ultrasound image, and calculating a consistency score; when the consistency score exceeds a preset threshold, the corresponding frame is determined as a candidate standard section frame; the development state of the candidate standard section frame is reviewed and distinguished to obtain a development state classification result; the alpha angle and the beta angle are calculated, the angle line and the key points are superimposed and displayed on an original drawing, a visual result is generated, and a structured report containing the visual result, the anatomical key point coordinates, the angle parameters and the development state classification result is output. Compared with the prior art, the application significantly improves the automation degree and the result interpretability while maintaining high-precision measurement.

This invention relates to a posture recognition method based on multi-area pressure sensing and an intelligent high-speed rail seat. The method includes: collecting real-time pressure distribution data for various parts of the passenger's body using a flexible thin-film pressure sensor matrix laid on the headrest, upper backrest, lumbar region of the backrest, buttocks, thighs, and leg rest; identifying the passenger's current posture based on the pressure distribution data, including sitting, supine, and lateral positions; and generating corresponding control commands based on the identified posture to control the operation of airbags and / or massage motors distributed in various areas of the seat. This invention, through refined partitioning of the backrest and seat cushion, can accurately distinguish between supine and lateral positions and intelligently control the massage function accordingly: thigh massage is disabled when sitting to avoid discomfort; full-body synergistic massage is activated when supine; and regular massage is paused and micro-pressure migration is initiated to protect the shoulder and hip joints when lateral. This invention achieves intelligent matching of posture and massage function, significantly improving riding comfort and safety.

The application relates to the technical field of protection devices, and discloses a sputtering-preventing protection device for bone sawing and grinding, which comprises a protection device main body, a tightening belt and a fixing assembly. The protection device is provided with a first transparent plastic film and a second transparent plastic film. In the operation process of sawing a bone or grinding a hip socket, the splashed bone fragments, blood and tissues will first adhere to the surface of the first transparent plastic film. When the surgeon cannot see the internal surgical field through the film, the first transparent plastic film is pulled to drive the bent end of the second transparent plastic film to be unfolded, the adhesive material on the back surface is peeled off, and the first transparent plastic film is separated from the second transparent plastic film. At this time, the first transparent plastic film adhered with the bone fragments, blood or tissues is separated. The method can shield the splashed objects and effectively avoid the obstruction of the vision caused by the adhesion.

The present application relates to the technical field of ultrasound image analysis, in particular to a hip joint ultrasound image analysis method, device, equipment and medium based on blind scanning. The present application first classifies each frame of ultrasound image to preliminarily and roughly determine whether the standard coronal section of the hip joint is collected in the ultrasound image, and then further determines whether the standard coronal section of the hip joint is collected in the ultrasound image by detecting the key structure on the ultrasound image. Then, based on the judgment result and the detection result corresponding to each frame of ultrasound image, the target ultrasound image is screened out from each frame of image, which is the ultrasound image recording the standard coronal section of the hip joint. Finally, the development data of the hip joint is obtained according to the target ultrasound image. The present application replaces the subjective screening of the ultrasound image where the standard coronal section of the hip joint by the doctor with the classification method and the detection method, so that the target ultrasound image screened out is closer to the standard coronal section of the hip joint, and finally the accuracy of the development data of the hip joint obtained based on the target ultrasound image is improved.

A combination drill guide and depth gauge surgical instrument and associated method for use during a surgical procedure to implant an acetabular cup component into a surgically-prepared acetabulum of a patient's hip includes an elongated shaft having a drill guide on an end thereof. The instrument also includes a retractable depth probe that may be used to gauge the depth of the holes drilled by use of the drill guide.

The application relates to a hip cup knocking device and a hip replacement surgery robot, which comprises a holding assembly, a knocking part, a connecting part and a holding part which are sequentially connected in a first direction, the connecting part is further provided with a connecting arm to be connected with a mechanical hand of a surgery robot, the connecting arm extends in a second direction, the second direction intersects with the first direction, a knocking rod penetrates through the holding assembly in the first direction, one end of the knocking rod extends out of the knocking part, the other end of the knocking rod extends out of the holding part and is configured to be connected with a hip cup, a verification point is arranged on the knocking rod close to the hip cup, and the verification point has a preset shape matched with a probe. The technical scheme can reduce surgery errors.

The acetabular cup removal device for artificial hip joints according to an embodiment of the present invention includes a main shaft and a cutter unit that cuts the acetabular portion while rotating around the main shaft. The cutter unit includes a cutter tilt unit that can be tilted along the acetabular portion around a virtual tilt axis, a cutter mounting unit that is slidably coupled to the cutter tilt unit in a direction approaching or moving away from the virtual tilt axis, and a cutter detachably mounted on the cutter mounting unit. The cutter tilt unit includes a first through hole penetrating along the virtual tilt axis, a connecting bar having both ends fixed to the cutter mounting unit, and a leaf spring fixed to both ends of the connecting bar and having a central portion between both ends.

This invention belongs to the field of artificial intelligence technology, specifically a method for assessing hip joint conditions based on a multimodal large model. The method includes preprocessing images and text; introducing anatomical structure prior constraint operators through a visual module to mine features; performing deep modeling using a semantic module; constructing a spatial-semantic dynamic alignment mechanism to map features into a cross-modal attention layer; and performing fusion reasoning and anatomical prior verification. This invention can achieve accurate characterization of hip joint lesion features, improving the stability, clinical consistency, and decision interpretability of assessment results.

This application provides a surgical robot system and control method for periacetabular osteotomy. The system includes: a preoperative planning module, used to generate a three-dimensional model of the hip joint based on the patient's hip joint medical images, and to perform personalized preoperative planning to determine the periacetabular osteotomy plan; the periacetabular osteotomy plan includes osteotomy surface planning information and acetabular adjustment information; and a navigation and positioning module, used to register the intraoperative physical hip joint and the preoperative three-dimensional model of the hip joint using an optical positioning instrument and an optical positioning frame to map the periacetabular osteotomy plan, track the pose of the surgical tools and the physical hip joint in real time, and display and compare the periacetabular osteotomy plan and the real-time osteotomy process on a display screen. In this application, through preoperative planning and intraoperative optical positioning navigation, the osteotomy status of the surgical tools can be tracked in real time during the operation, avoiding multiple medical imaging images, thereby greatly improving the surgical outcome.

The application provides a pig acellular dermal matrix for hip joint labrum reconstruction and a preparation method and application thereof, and belongs to the technical field of biomedical materials. Natural pig dermal tissue is washed and incubated, then is treated with a solution containing EDTA-trypsin and a solution containing a surfactant in sequence, and finally is washed to obtain the pig acellular dermal matrix. The pig acellular dermal matrix is treated by a specific process, is used as a xenogenic hip joint labrum reconstruction material, and exhibits good biocompatibility and tissue guiding function. Meanwhile, the preparation method is simple, raw materials are widely sourced, and the limitation of a graft source in a current hip joint labrum reconstruction surgery is solved.