85 results about "Hip joint replacement" patented technology

A dynamic reference base (DRB) and associated method are provided for rigidly affixing an array frame to bone for use in navigated or robotic surgery. The DRB includes a bridge element that includes a connecting rod having a distal end and a proximal end; a clamp coupled to the distal end of the connecting rod; a first and a second pin guide extending distally from the clamp; a locking nut disposed on the clamp; and a clutch coupled to the proximal end of the connecting rod, the clutch being adapted to couple to the array frame. The DRB also includes the array frame, which is couplable to the clutch, and is adapted to include a plurality of tracking markers disposed thereon.

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 discloses a kinematics monitoring method for rehabilitation after hip replacement, and relates to the technical field of kinematics monitoring. Comprising the following steps that monitoring elements are arranged, IMU sensor groups are arranged at hip joints and thighs, and a power module, a processor and a Bluetooth communication module are worn on a human body; data acquisition: the IMU sensor group acquires vector data of hip joints and thighs and transmits the vector data to the processor, the processor transmits the data to the PC terminal through the Bluetooth communication module, the PC terminal calculates a quadruple of hip bone angles and a quadruple of leg bone angles at the same time, then subtracts the quadruple of hip bone angles and the quadruple of leg bone angles to obtain a quadruple of relative included angles, and calibrates the quadruple of relative included angles; a plurality of standard poses in rehabilitation evaluation after hip replacement are selected as calibration references. A corresponding monitoring scheme is designed based on the multiple IMU sensors, a software and hardware system is formed, the hip joint angle of the patient is measured and calculated in real time, and a doctor is assisted in evaluating and guiding the postoperative rehabilitation exercise intensity of the patient.

The present invention discloses an anti-slip hook device for hip replacement, which is in the field of hip replacement technology. The device comprises an operating table and a hook, a fixing mechanism fixedly mounted on the operating table and used to fix the hook, and a connecting mechanism used to connect the fixing mechanism and the hook, and capable of adjusting the position of the hook relative to the fixing mechanism. The present invention provides multiple sets of connecting mechanisms and hooks on a fixing mechanism to pull the hook, thereby replacing the pulling of the hook by medical staff, reducing the workload of medical staff, and increasing the stability of the hook pulling process, thereby preventing the hook from slipping and affecting the surgery.

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 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 application discloses a kind of postoperative image index automatic measurement methods of hip arthroplasty, belong to medical image processing technical field, first obtain original data set;Marking is obtained to obtain segmentation data set and key point detection data set, and image data is carried out data enhancement and data preprocessing;Using segmentation model, segmentation data set is handled to obtain region of interest;Using key point detection model combines Gaussian heat map regression method to detect key point in region of interest image;Finally, according to the position of key point, the four parameters of patient after hip arthroplasty are calculated, to accurately evaluate the condition of patient after hip arthroplasty surgery is carried out.The application uses deep learning measurement method to automatically measure some important indexes quickly, accurately and with high repeatability, solves the pain point of manual labeling, saves manpower and time, has excellent reliability and accuracy, and has application value for clinical diagnosis.

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 relates to a surgical device for performing a controlled resection of the neck of a femur during a hip replacement procedure. The surgical device comprises a template comprising an aperture dimensioned for receiving a femoral head of the femur, and a frame comprising a resection guide for indicating a resection plane on the femoral neck. The femoral neck has a femoral neck axis. The frame is slidably connected to the template for positioning of the resection guide along the femoral neck axis while the template is mounted on the femoral head.

The invention relates to the technical field of surgical measurement, in particular to a real-time measurement method and system for the length and eccentric distance of lower limbs in hip replacement. According to the technical scheme, the method comprises the following steps that anatomical feature points on the two sides of a patient are obtained, wherein the anatomical feature points at least comprise the positions of anterior superior iliac spines on the two sides and the positions of high points on the inner side and the outer side of ankle joints on the two sides; and according to the obtained anatomical feature points, calculating and establishing a normal position reference plane of the patient. By means of the non-invasive body surface positioning and optical tracking technology, the length and the eccentric distance of the lower limb can be accurately measured in real time in the hip replacement. The method comprehensively considers the change of both sides of the acetabulum and the femur, avoids the trauma risk of traditional invasive navigation and the deviation of single measurement, and provides a quantitative basis for doctors through intraoperative dynamic data feedback and preoperative, intraoperative and postoperative whole-course evaluation, thereby improving the surgical precision and reducing the occurrence rate of complications with unequal lengths of lower limbs.

The magnetic suspension bracket used after hip replacement comprises an upper structural component, a lower supporting structural component and a supporting body, and the supporting body is placed on the upper structural component. The upper structural component, the supporting body and the lower structural component are combined to form a physical distance, so that the abduction degree of the affected leg is kept, and dislocation of the hip joint caused by adduction of the affected leg is avoided. Magnetic materials are placed on the upper structural component and the lower structural component respectively, the upper structural component and the lower structural component are installed oppositely through homopolar magnetism, suspension force is generated through repulsion of the homopolar magnetism, the two structural components freely rotate in the magnetic suspension state, and the lower limbs of a patient can be placed in a relatively free and relaxed body position when the patient sleeps or has a rest in the side-lying position. The lower structural component is of a hollow structure, and when a user lies on the side, the legs do not bear the gravity of the upper affected legs to affect blood circulation. The magnetic suspension principle is ingeniously utilized, the degree of freedom of movement of the two legs and the sleeping habit of a patient are met to the maximum degree while it is guaranteed that the affected leg keeps a certain abduction degree, experience is improved, and postoperative recovery is facilitated.

The invention provides a lower limb length measuring and positioning assistor in horizontal position direct anterior approach hip joint replacement and a measuring method.The lower limb length measuring and positioning assistor comprises a first main body structure, a second main body structure, a first longitudinal connecting rod, a second longitudinal connecting rod and a transverse rod; the first groove structure is connected with a first extension rod, and the first extension rod is connected with one end of the cross rod through a first longitudinal connecting rod; the second main body structure comprises a second groove structure and a second extension rod, the second groove structure is connected with the second extension rod, and the second extension rod is connected with the other end of the cross rod through a second longitudinal connecting rod; the first extension rod and the second extension rod are parallel to the cross rod, the first groove structure is clamped at the anterior superior spine of one side of a patient, and the second groove structure is clamped at the anterior superior spine of the other side of the patient. The anterior superior spine bony marker can be accurately positioned, the angle consistency of the two lower limbs is ensured, the length measurement accuracy of the two lower limbs is ensured, and the length consistency of the two lower limbs after operation is ensured.

The utility model discloses a femoral stem capable of being automatically aligned when a femoral head is assembled, and belongs to the technical field of medical instruments. The defect that in the prior art, a femoral head and a femoral stem cannot be firmly locked when a traditional femoral head is aligned with the femoral stem is overcome. A main body structure of the device comprises a femoral stem and a femoral head matched with the femoral stem, a cylindrical middle shaft is arranged at the top end of a conical head of the femoral stem, a cylindrical hole and an inner conical hole which are communicated with each other are formed in the femoral head, and the outer conical surface of the conical head on the femoral stem is matched with the inner conical hole in the femoral head. And the cylindrical middle shaft on the femoral stem is matched with the cylindrical hole in the femoral head. The thighbone side hip joint replacement device is mainly used for thighbone side hip joint replacement surgery.

The utility model discloses a hip replacement post-operation dual-purpose body position pad which comprises a first body position pad, a second body position pad is arranged on the right side of the first body position pad, sponge pads are filled in the first body position pad and the second body position pad, and zippers are fixed on the lower end face of the first body position pad and the lower end face of the second body position pad. The first magic tape hook surface is fixed on the lower end surface of the first body position pad, and a second magic tape hook surface is fixed on the right side of the first body position pad; and the first magic tape rough surface is fixed on the lower end surface of the second body position pad. According to the dual-purpose body position pad used after hip replacement, when the lower limb is kept in the abduction neutral position in the horizontal position, the shank is lifted to relieve postoperative edema and promote venous return of the lower limb, and turning over towards the healthy side, the second function of the body position pad is applied, the pad is arranged between the two legs in the side-lying position, the distance between the two legs is fixed, and the distance is kept stable; excessive internal rotation, adduction and excessive hip bending of the affected limb in the healthy side lying position are avoided, and the comfort of a patient and the stability of the body position of the patient are effectively guaranteed.

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.

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.

A femoral lift apparatus includes a lift device and a hook device. The hook device is coupled to the lift device. The femoral lift apparatus is labor-saving and can avoid the problem that the conventional femoral lift apparatus may block the surgical view, hinder the operation position for a hip joint replacement surgery. With the assistance of this current femoral lift apparatus, the hip joint replacement surgery can be performed more smoothly.

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.

The present application relates to hip replacement technical field, and disclose a kind of hip replacement post anti-dislocation positioner and its using method, including mounting frame, further comprising: fixed component, fixed component includes screw hole rod, the end of screw hole rod is rotatably connected with the surface of mounting frame, and the inner wall of screw hole rod is threadedly connected with threaded rod;Protection component, protection component includes telescopic plate, and the end of telescopic plate is fixedly connected with round hole rod, and the inside of round hole rod is sleeved with semicircle frame.The surface of mounting frame of the present application is provided with fixed component, and fixed component can be tied at the torso of patient, after fixed component is fixed at the torso of patient, protection component can be positioned, after protection component is fixed, it is pushed to move downward, when protection component moves downward, it will contact with the hip joint of patient and position hip joint, avoid hip joint to appear the condition of falling off, inside protection component is provided with stabilizing component, when protection component is sleeved at the hip joint of patient.

The application relates to the technical field of clinical medicine, and particularly discloses a lower limb nerve detection method and device in artificial total hip arthroplasty. The method comprises the following steps: acquiring performance state data of a lower limb nerve detection device, monitoring intraoperative environment data of artificial total hip arthroplasty, comprehensively analyzing to obtain a nerve detection accuracy evaluation value; recording electrode pair waveform data, comprehensively analyzing to obtain an electrode pair waveform abnormality evaluation value; correcting a parameter according to the waveform abnormality evaluation to obtain a waveform abnormality evaluation threshold value, and performing abnormality feedback. The application provides a lower limb nerve detection method and device in artificial total hip arthroplasty, which can help doctors to identify the existence and degree of nerve injury, help to distinguish different types of nerve injury, and thus formulate a targeted treatment scheme, can accurately locate the nerve injury, and can also monitor the recovery progress of the nerve function, help to timely adjust the treatment scheme, and improve the treatment effect.

The invention relates to the field of postoperative rehabilitation instruments, and particularly discloses a hip replacement postoperative dislocation prevention cushion structure which comprises a cushion mechanism and a limiting frame mechanism. The seat cushion mechanism comprises a seat cushion assembly, a fixing shaft bracket assembly is arranged at the bottom of the seat cushion assembly, and a pawl assembly is installed on the outer side of the fixing shaft bracket assembly; the limiting frame mechanism comprises a limiting frame assembly rotationally installed on the fixing shaft frame assembly. By arranging the rotatable limiting frame body and the locking structure matched with the ratchet wheel and the pawl, reliable guarantee can be obtained when a hip replacement postoperative patient uses the cushion, after the patient sits, the handle is pulled in the direction of the cushion body, the shaft rod drives the ratchet wheel to rotate, and the limiting frame body is lifted accordingly; after reaching a proper position, the pawl body abuts against the ratchet wheel under the action of the first spring, and reverse rotation of the ratchet wheel is effectively limited; and through the linkage design of the pull rope assembly and the pawl assembly, the laying-down operation of the limiting frame body is extremely simple and convenient.

Provided are hip stems for hip arthroplasty, kits of implant systems, and methods of using said hip stems and kits. The hip stems comprise a stem body having a length formed by a proximal portion, a middle portion, and a distal portion, and a stem neck extending from the proximal portion of the stem body and terminating at a free end. The stem portion comprises a first taper along a length of the middle portion of the stem body causing a width of the stem body to decrease, a second taper along the length of the stem body causing a width of the stem body in the posterior-anterior direction to decrease, and a third taper along a base of the stem neck causing a width of the base in the posterior-anterior direction to increase.

The present invention relates to the technical field of medical auxiliary treatment, and discloses a total hip replacement navigation system, comprising a reference reference device fixed on the pelvis of a patient in a supine position on an operating table; an acetabular cup impactor for adjusting the installation position of an acetabular cup prosthesis; a positioning device detachably mounted on the reference reference device and the acetabular cup impactor, and for measuring an initial anteversion angle and an initial valgus angle of the hip joint, as well as a real-time anteversion angle and a real-time valgus angle of the acetabular cup prosthesis during installation of the acetabular cup prosthesis; obtaining the dynamic anteversion angle and the dynamic valgus angle of the acetabular cup prosthesis by a quaternion attitude determination method according to the dynamic angular velocity of the acetabular cup prosthesis; compensating and correcting the real-time anteversion angle and the real-time valgus angle of the acetabular cup prosthesis according to the dynamic anteversion angle and the dynamic valgus angle of the acetabular cup prosthesis, so that the real-time anteversion angle and the real-time valgus angle of the acetabular cup prosthesis are consistent with the target anteversion angle and the target valgus angle, thereby achieving accurate positioning and installation of the acetabular cup prosthesis.

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.

According to the reinforcement learning-based two-dimensional total hip replacement prosthesis type selection method and device, the medium, the program product and the terminal provided by the invention, the prosthesis type selection model is constructed based on the Unity platform and the reinforcement learning algorithm, so that a proper prosthesis is automatically selected according to the medullary cavity condition of a patient and preoperative planning is carried out, the operation efficiency and accuracy are remarkably improved, and the operation cost is reduced. And errors caused by manual operation are reduced. Meanwhile, the model supports personalized setting, a labeling scheme can be customized according to patient requirements, personalized prosthesis type selection is achieved, and individual requirements of different patients are met. Besides, the model has expansibility, can be used for preoperative planning to a certain extent, can be applied to automatic planning in other surgical fields in the future, and has important clinical application value.

The utility model relates to the technical field of medical instruments, and discloses a portable folding chair for an artificial hip replacement postoperative patient, which comprises a chair seat, a back cushion plate and a seat cushion plate are arranged on the chair seat, the included angle between the back cushion plate and the seat cushion plate is greater than 90 degrees, and a chest frame for restraining the upper body of the patient is connected onto the back cushion plate; leg clamps which can be folded and stored are arranged on the cushion plate; a foot stool used for restraining the feet of the patient is arranged at the bottom of the front portion of the chair seat, and two rubber bands are fixedly connected to the foot stool. The positions of the upper body, the two legs and the soles of the patient are limited and restrained in sequence from top to bottom through the angle structure of the chair seat, the chest frame arranged on the back cushion plate and used for restraining the upper body of the patient, the leg clamps arranged on the seat cushion plate and used for limiting and unfolding the two legs, and the foot stool matched with the two legs for restraining the lower limbs, so that the posture of the patient is kept correct, and rehabilitation is facilitated; meanwhile, the leg clamp can be folded and stored, so that the leg clamp can be normally used by other people or can be normally used by a patient after rehabilitation, and the use convenience is improved.

The application provides a hip replacement preoperative reconstruction system and device based on intelligent learning, and relates to the technical field of auxiliary medical instruments.The hip replacement preoperative reconstruction system based on intelligent learning comprises an image quality evaluation module, an image fusion evaluation module and a prosthesis planning module.The image quality evaluation value obtained through image data is used to determine whether to perform image quality optimization, then the image fusion quality evaluation value obtained based on image fusion quality data is used to determine whether to perform image fusion quality optimization, and finally the prosthesis planning evaluation value obtained based on the prosthesis position data, the image fusion accuracy, the image quality evaluation value and the image fusion quality evaluation value is used to determine whether to perform feedback, so that the selection of the hip joint prosthesis position is optimized, and the correlation between the hip replacement preoperative reconstruction process and image quality is improved, thereby solving the problem of low correlation between the hip replacement preoperative reconstruction process and image quality in the prior art.

The present invention relates to a method for interactively designing via an implant design platform an artificial joint implant for hip arthroplasty and corresponding broaching and osteotomy guide apparatuses. The proposed implant design platform reconstructs the anatomy of the patient's pelvic and femoral bones in a 3D digital environment, and accordingly develops a patient-specific femoral implant stem as well as patient-specific surgical tools broach / rasp, osteotomy guide) used in total 10 hip arthroplasty. The patient-specific femoral implant stem developed may be optimized to ensure optimum mechanical performance for the patient, employing complex internal lattices that minimize stress shielding and advanced trabecular surfaces to promote osseointegration.

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.

An orthopaedic system for use in a direct anterior approach orthopaedic hip replacement procedure on a patient's femur includes a proximal guide instrument (14) for guiding a flexible insertion instrument (12) for placing a cement restrictor component (16, 18). A method for placing a cement restrictor component during performance of a direct anterior approach orthopaedic hip replacement procedure is also disclosed.