57 results about "Hip joint replacement operation" patented technology

A system and method to identify, convey, and reduce the risk of hip dislocations following hip replacement surgery. Preoperative images are used to identify the pelvic tilt of a patient while the patient is in a sitting position, a standing position, and a supine position. Based on the pelvic tilt and pelvic mobility depicted in the preoperative images, the system can identify a quantitative and / or qualitative risk of hip dislocation when the patient is seated, standing, and lying. During surgery, an intraoperative image can confirm the acetabular cup orientation once implanted and the system can determine the risk of hip dislocation when patient is in the supine position. The system can also extrapolate the dislocation risk when the patient is seated and standing based on acetabular cup position and orientation depicted in the intraoperative image.

Disclosed herein is a system and method for providing pre-operative planning and intra-operative guidance to a surgeon to assist in the optimal placement of the stem portion of a femoral implant within the intramedullary canal of a patient's femur during hip replacement surgery. In particular, the system and method provide information regarding contact points between the femoral stem in the patient's intramedullary canal to alleviate risk, inform the surgeon on key pre- and intra-operative decisions and guide femoral broaching and / or stem placement for optimal proximal fixation of the femoral implant.

An orthopaedic prosthesis for use in a hip replacement surgery includes an implantable stem component. The implantable stem component includes a core and a shell extending over the core. The shell includes a polymeric material and is configured to receive a femoral head component. Metal foam may extend over a portion of the shell.

The invention discloses a flexible pressure monitoring system for hip replacement surgery, and belongs to the technical field of biomedical instruments. The flexible pressure monitoring system comprises a flexible front-end signal acquisition module, a rear-end signal processing module and an upper computer system, the flexible front-end signal acquisition module is connected with the rear-end signal processing module, and the rear-end signal processing module is connected with the upper computer system; the flexible front-end signal acquisition module comprises a flexible pressure sensor, and the flexible pressure sensor is arranged at a hip joint; the flexible pressure sensor comprises a flexible substrate, an electrode layer, a spacing layer, a sensitive layer and a packaging layer. According to the flexible pressure monitoring system, the uncertainty that the operation effect is judged only according to experience in the hip joint replacement operation process is made up, clear pressure distribution at the hip joint in the operation process can be provided for surgeons, and objective mechanical data are provided for selection and adaptation of prostheses.

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.

The present invention provides a range of motion detection method for hip replacement surgery, comprising the following steps: obtaining the STL data of the femoral stem and acetabular cup after alignment from the preoperative plan as the object to be detected; obtaining the rotation center of the femoral head from the preoperative plan as the center, segmenting the STL data of the femoral stem and acetabular cup that may collide, and removing the remaining parts; detecting the range of motion of the femur: constructing a coordinate system with flexion and extension as the x-axis and abduction and adduction as the y-axis, with the coordinate origin being the current position of the object to be detected; then, based on the concept of breadth traversal, starting from the coordinate origin, traversing all coordinate points and detecting whether they collide, thereby obtaining the specific range of motion of the patient's femur; and sorting the boundary queue and drawing it. This detection method improves the strategy for detecting the range of motion of the femur, reducing the time required to update the femoral range of motion boundary after data replacement; and drawing the collision area when the current femoral range of motion collides.

A surgical device and method for performing controlled resection of a femoral neck during hip replacement surgery. The surgical device includes a main body portion. The main body portion has a mounting portion. The mounting portion can be mounted on a femoral head of a femur to position the main body portion relative to the center of the femoral head. The main body portion also has an opening for mounting the main body portion on an intramedullary nail, which is located in the medullary cavity of the femur. The surgical device also includes a resection guide frame. The resection guide frame can be adjustably positioned at multiple positions on the main body portion to position a resection plane indicator of the resection guide frame relative to the femoral neck based on a measured radius / diameter of the femoral head.

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.

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.

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

The application provides a kind of based on deep learning's full hip joint postoperative leg length difference calculation method and system, it is related to medical technology field, can realize the accurate evaluation of the postoperative condition of the patient of full hip arthroplasty surgery, method includes: obtaining the hip image of the patient after hip arthroplasty surgery;Based on the target recognition network of deep learning, identify the bilateral femur region in hip image, ischium region, the first key point position located in bilateral femur region and the second key point position located in ischium region;According to the first key point position, second key point position and ischium region, determine the leg length difference of the patient's double legs.The system executes the method.The application is based on the hip image of the patient after hip arthroplasty surgery, calculates the leg length difference of the patient's double legs after hip arthroplasty surgery, and realizes the accurate evaluation of the recovery condition of the patient after hip arthroplasty surgery according to the leg length difference of the patient's double legs.

The utility model relates to the technical field of medical instruments, and discloses an artificial hip replacement surgery side position body position support which comprises a body position plate, an arc-shaped plate used for fixing is fixedly installed on one side of the body position plate, a fixing belt used for positioning is fixedly installed on one side of the arc-shaped plate, and a connecting plate used for fixing is fixedly installed on one side of the arc-shaped plate. A thigh supporting plate used for supporting is fixedly installed on one side of the connecting plate, and an elastic belt used for fixing is fixedly installed on one side of the thigh supporting plate. According to the artificial hip joint replacement surgery lateral position body position support, through cooperative arrangement of the connecting plate, the thigh supporting plate and the elastic belt, the body position plate and the thigh supporting plate can be fixedly connected through the connecting plate, meanwhile, the angle of the device can be adjusted according to needs so as to meet the use requirement, the thigh supporting plate can fixedly install the elastic belt, and the elastic belt is not prone to falling off. And the device has certain elasticity, so that the device is fixed more firmly, and the risk of an operation is reduced.

An orthopaedic surgical instrument assembly operable to taper lock orthopaedic components to one another includes a taper assembly instrument having a handle with a draw rod extending therethrough so as to be slidable relative to the handle and a clamp instrument configured to selectively engage the taper assembly instrument so as to move the draw rod relative to the handle. A sacrificial tensile bar component of the taper assembly instrument is configured to break when a predetermined load has been applied to the orthopaedic components. A method of using an orthopaedic surgical instrument assembly to taper lock orthopaedic components to one another is also disclosed.

The utility model discloses a hip joint holding device for a hip joint replacement surgery navigation system, which is characterized in that a hip joint holder is fixed by a mechanical arm, and a flexible component is arranged between the hip joint holder and the mechanical arm, so that the depth and the force of a grinding file can be effectively controlled, the size of an acetabular fossa of the grinding file is greatly increased, and the grinding file is more stable. The flexible assembly is additionally provided with a lamp belt, different states are displayed for operation of the mechanical arm through the color of the lamp belt, the flexible ring is additionally provided with a binding belt groove, a binding belt can be fixed in the groove when a sterile cover is sleeved, the binding belt is prevented from falling off, and the sterile space is prevented from making contact with bacteria substances.

The invention discloses a precise acetabular cup implanting device for an artificial hip joint replacement surgery. A calibration rod and a positioning rod are connected around the same fixed shaft and are provided with positioning pieces for positioning a target point. The distance between the positioning piece and the fixing shaft and the included angle between the positioning rods can be adjusted. The calibration rod is provided with a calibration groove with an upward opening. The supporting rod is arranged on the outer shell in a penetrating mode and used for being connected with the acetabular cup and serving as a holding handle. The calibration piece is connected and matched with the calibration groove, and the spatial position of the implantation assembly connected with the positioning assembly serves as the initial position. And the angle calculation module calculates an anatomical front inclination angle and an anatomical abduction angle in real time according to the offset between the current position and the initial position of the implanted component. Visualization of the front plane and the sagittal plane of the pelvis of the human body is achieved, and operation personnel can be guided to correctly place the body position in pre-operation training and operation. And the anatomical front inclination angle and the anatomical abduction angle corresponding to the current implanted component can be calculated and informed in real time, so that accurate implantation of the acetabular cup is realized.

The invention discloses a navigation method and device for hip replacement surgery and electronic equipment, and relates to the field of medical engineering. The method comprises the following steps: acquiring a three-dimensional skeleton model of a patient before a hip joint replacement operation and a first target position of a to-be-implanted prosthesis of the patient in the three-dimensional skeleton model; establishing a mark coordinate system according to the plurality of reference mark points; acquiring a patient position of the patient and a tool position of the handheld tool in the surgical space; a mapping relation between a mark coordinate system and an image coordinate system is established through image registration, the image registration comprises coarse registration and fine registration, and the image coordinate system is a coordinate system where the three-dimensional skeleton model is located; determining a second target position of the to-be-implanted prosthesis in the operation space according to the mapping relation; and combining the patient position, the tool position and the second target position to guide the doctor to perform hip replacement surgery. By implementing the technical scheme provided by the invention, the accuracy of image registration is improved through coarse registration and fine registration, and then the accuracy of prosthesis implantation is improved.

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.

The invention relates to the technical field of biomedical devices, and discloses an anti-slip muscle stretching device based on hip replacement surgery, which comprises a mounting bracket, clamping blocks are fixedly connected to the two sides of the lower part of the mounting bracket, threaded rods are in threaded connection to the bottoms of the clamping blocks, and clamping plates are fixedly connected to one ends of the threaded rods and the inner sides of the clamping blocks; a transverse moving sliding block is slidably connected to the inner wall of the mounting support, a fixing column is fixedly connected to the upper portion of the transverse moving sliding block, a lifting column is slidably connected to the inner wall of the fixing column, two traction and supporting hook plates are arranged on the side of the lifting column, and the maximum position where the traction and supporting hook plates can move is accurately set through an adjusting assembly. When the traction and support hook plates move under the action of the pulling and moving assembly, once the traction and support hook plates reach the position set by the adjusting assembly, the adjusting assembly can prevent the traction and support hook plates from continuously moving, it is ensured that the opening size of incision muscles pulled by the two traction and support hook plates is just at the optimal position of an operation, and the situation that the operation effect is affected due to excessive or insufficient traction and support is avoided.

The invention relates to the technical field of medical instruments, in particular to an eccentric femoral medullary cavity reamer special for minimally invasive hip replacement surgery, which comprises a support component, a guide device slidably sleeved at the top end of the support component, and a contact device fixedly mounted at the side end of the guide device and comprises a nut, a screw, a medullary cavity file puller and a medullary cavity file. The medullary cavity file is installed at one end of the medullary cavity file puller, the screws are symmetrically and fixedly installed at the other end of the medullary cavity file puller, the nuts are connected to outer rings of the screws in a threaded and sleeved mode, the guiding device comprises an impact head, a positioning disc and a movable frame, the impact head is fixedly installed at the center of the side end of the positioning disc, and the movable frame is fixedly installed at the side end, away from the impact head, of the positioning disc. The supporting component comprises a regulation and control device, a positioning device and a matching device. Through the arrangement of the contact device, the guide device and the supporting component, the purpose of integrating positioning type displacement and synchronous limitation of the eccentric femoral marrow cavity reamer is achieved.

A surgical positioning system includes a platform assembly and an alignment post coupled to the platform assembly. The platform assembly has first and second members and an elevation assembly. The first member is supported on a surgical operating table. The second member is arranged over the first member and supports thereon a first portion of a patient undergoing surgery. The elevation assembly moves the second member with respect to the first member so as to change an elevation of the first portion of the patient. In some embodiments, a positioning member is coupled to the alignment post. The positioning member is inflatable between a deflated state and an inflated state in order to displace part of the patient thereon vertically and laterally. In some embodiments, the surgical positioning system can be used to position the anatomy of a patient during a hip replacement surgery.

The application provides a kind of based on deep learning's calculation method and system of postoperative eccentricity of total hip arthroplasty, it is related to medical technical field, can realize the accurate evaluation of the postoperative condition of the patient of total hip arthroplasty surgery, method includes: obtaining the hip image of the patient after hip arthroplasty surgery;Key point position and target area in the hip image are identified based on the target recognition network of deep learning;According to the key point position and the target area, the eccentricity of the patient is determined.The system executes the method.The application is based on the hip image of the patient after hip arthroplasty surgery, calculates the eccentricity of the patient after hip arthroplasty surgery, to realize the accurate evaluation of the recovery condition of the patient after hip arthroplasty surgery.

The invention discloses a femur stem prosthesis taking-out and separating suite for revision after hip replacement and a using method, relates to the technical field of revision after hip replacement, and is used for separating the connection between a prosthesis stem and a femur when the femur stem prosthesis is taken out in the revision after hip replacement. At present, hip joint replacement is relatively popularized, the number of cases of postoperative complications is increased along with the increase of the number of operation cases, and the number of operations needing to be rebuilt is increased along with the increase of the number of operation cases; the problem that special tools are lacked exists in existing femoral stem prosthesis taking-out instruments, the prosthesis stem is difficult to take out in the operation, the thighbone is split, and therefore the reinstalled femoral prosthesis stem cannot be well installed. A set of convenient, durable and practical femur prosthesis extraction instrument is necessary; a corresponding special tool is manufactured according to the combination characteristics of the femoral prosthesis and the femur.

The utility model relates to the technical field of surgical auxiliary instruments, in particular to a novel positioning device for prosthesis implantation in hip replacement surgery, which comprises a telescopic support rod, an adjusting pad is connected to the end of the telescopic support rod, and rotating columns are connected to two sides of the adjusting pad; one side of the adjusting sleeve is provided with a movable hole for the telescopic supporting rod to move close to one end of the adjusting pad, the adjusting pad is arranged in the adjusting sleeve, and the two sides of the adjusting sleeve are provided with strip-shaped holes for the rotating column to move; any point can be selected as a fixing point only by exposing acetabulum edge bone, then the positioning device is installed, an acetabulum test mold with the minimum size is placed at the acetabulum bottom, after forward inclination and abduction angles are evaluated, the telescopic supporting rod is adjusted to be consistent with the acetabulum test mold rod at the moment in direction, and the telescopic supporting rod is firmly fixed through the screw plug. The positioning device is an effective aiming device in the operation, is simple, convenient and practical, can be removed after the acetabular prosthesis is placed, and can be disinfected for use or used in a disposable mode.

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 invention relates to an external rotation muscle group tendon reconstruction auxiliary device which is mounted on the rear surface of a greater trochanter of a femur and used before an iliotibial bundle is sutured after a hip replacement operation is performed on a posterior lateral approach. The device comprises a drilling cover die and a drill bit matched with the drilling cover die, a plurality of guide holes are preset in the cover die, a replaceable cambered surface insert block and a non-Newtonian fluid buffer bag body structure are arranged, and the fitting performance and the impact resistance stability are improved. The periphery of the guide hole is provided with a liquid injection groove used for dyeing identification, the surface of the cover die is provided with a tendon trend scribed line and a suture guide baffle, and synchronous optimization of drilling positioning, suture tension control and operation efficiency is achieved. The device is reasonable in structure, accurate in positioning, simple and convenient to operate and suitable for the tendon reconstruction requirements of extorsion muscle groups in various hip replacement operations.

An orthopedic instrument (10) for extracting an implanted femoral stem component includes a clamping jaw (40) configured to clamp the femoral component within an extraction loop (18) of the instrument. A leaf spring (66) applies spring bias to the clamped femoral component. A method of using the orthopedic instrument to extract an implanted femoral component is also disclosed.

The invention relates to a scoring system for simulation training of a total hip replacement surgery. The scoring system comprises a plurality of disease modules, each disease module is provided with a unique identity label; a surgical tool assembly; comprising a use data acquisition module; a surgical prosthetic component; the method includes installing a data acquisition module; a console; a mounting position is arranged on the base; a data processing center, a display terminal, an identification module and a posture data acquisition module are also integrated on the operation table; the display terminal, the identification module, the use data acquisition module, the installation data acquisition module and the attitude data acquisition module are respectively in communication connection with the data processing center; the data processing center comprises a disease information base and a weight configuration module; pathology names and identification codes are pre-stored in the disease information base; a scoring weight parameter set is pre-stored in the weight configuration module; the scoring system significantly optimizes learning curves and training resource efficiency.

The application provides a method for improving the registration accuracy of a mechanical arm in hip replacement surgery, which comprises the following steps: data preparation of a measured object; calculation of the relative pose of a light-reflecting array, which converts the relative pose calculation of an entity in a three-dimensional space into the plane pose calculation in the three-dimensional space; real-time display of the relative pose of the light-reflecting array, and timely adjustment of the light-reflecting array to reduce the error caused by the pose. Compared with the prior art, the method provided by the application converts the relative pose calculation of an entity in a three-dimensional space into the plane pose calculation in the three-dimensional space, and applies the pose control to hip surgery, thereby improving the overall accuracy of the surgery. In addition, the application calculates and displays the plane relative pose in the three-dimensional space in real time and continuously, so that the surgical personnel can accurately control the relative pose information of the array in real time, timely adjust the light-reflecting array, effectively reduce the registration error of the mechanical arm, and improve the accuracy of the surgery.

The application discloses a flexible pressure monitoring system for hip replacement surgery and belongs to the technical field of biomedical devices. The flexible pressure monitoring system comprises a flexible front-end signal acquisition module, a rear-end signal processing module and an upper computer system, the flexible front-end signal acquisition module is connected with the rear-end signal processing module, the rear-end signal processing module is connected with the upper computer system, the flexible front-end signal acquisition module comprises a flexible pressure sensor, and the flexible pressure sensor is arranged at a hip joint. The flexible pressure sensor comprises a flexible base, an electrode layer, a spacing layer, a sensitive layer and an encapsulating layer. The flexible pressure monitoring system can compensate for the uncertainty of the surgical effect determined only by experience in the hip replacement surgery process, can provide a surgeon with a clear pressure distribution at the hip joint in the surgery process, and can provide objective mechanical data for the selection and adaptation of a prosthesis.

1. The name of the product of this design: Acetabular cup installer. 2. Purpose of the product with this design: The product with this design is used to assist in the installation of the acetabular cup during hip replacement surgery. 3. The design highlights of this design product lie in the shape, pattern and their combination of Design 1 and Design 3 products; and the shape, pattern, color and their combination of Design 2 and Design 4 products. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design. 6. Other circumstances that need to be explained: Request to protect the colors of Design 2 and Design 4. 7. The purple color in the view is the background color and is not within the protection range.