106 results about "Hip joint prosthesis" patented technology

The invention relates to a hip joint prosthesis. The hip joint prosthesis comprises an interstitial acetabular prosthesis and a femoral head reconstruction device. The interstitial acetabular prosthesis is stably connected with a pelvic acetabular fossa through the interstitial acetabular cup, the fixing screw and the interstitial acetabular lining, and adaptability and stability are enhanced through multiple designs such as petal openings and damping parts; the femoral head reconstruction device comprises a joint friction surface prosthesis and a bone ingrowth supporting cage frame, and reconstruction and stable supporting of the femoral head are achieved. According to the hip joint prosthesis, the technical effects of improving the stability and durability of the hip joint prosthesis, reducing postoperative discomfort of a patient and promoting bone tissue growth are achieved.

The invention provides a hip joint prosthesis. The hip joint prosthesis comprises a femoral stem body; the driving part is arranged on the femoral stem main body; the transmission part is movably arranged in the femoral stem main body, and the driving part drives the transmission part to move; the plug connector is telescopically arranged on the femoral stem main body to have a plug-in position and a first storage position, and the transmission part moves to drive the plug connector; when the plug connector is located at the plug-in position, the plug connector extends out of the femoral stem main body; when the plug connector is located at the first storage position, the plug connector retracts into the femoral stem main body; the force measuring piece comprises a dynamometer and a first elastic piece connected to the dynamometer, the dynamometer is movably arranged in the femoral stem body, and the dynamometer drives the first elastic piece to stretch out and draw back on the femoral stem body so that the first elastic piece can have a force measuring position and a second containing position. According to the technical scheme, the problem that the hip joint prosthesis in the related technology cannot give consideration to the stability after implantation and the convenience of later maintenance at the same time is solved.

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

The invention relates to a hip prosthesis in the field of health that can replace the femoral head in people whose femoral head in the hip bone has been damaged due to congenital or subsequent reasons, and that provides a capsule and a lubricating fluid in this capsule.

The application provides a hip joint prosthesis, which comprises a first end of a first stem body connected with a ball head part, an accommodating space arranged in the inside of the first stem body, a first mounting port and a second mounting port arranged on the side wall of the first stem body, an operation hole arranged on the top of the first stem body and communicated with the accommodating space, a moving piece movably arranged in the accommodating space, a first transmission piece and a second transmission piece both movably connected with the moving piece, the moving piece moving being capable of driving the first transmission piece and the second transmission piece to move close to or away from each other, a first pressing piece connected with the first transmission piece and located outside the first mounting port, and a second pressing piece connected with the second transmission piece and located outside the second mounting port; and an adjusting piece penetrating through the operation hole and driving the moving piece to move. The technical scheme of the application effectively solves the problem of insufficient stability of the hip joint prosthesis after implantation in the related art.

The present application belongs to the field of biomedical materials and computer aided design technology, and discloses a kind of porosity gradient adjustable hip joint prosthesis porous coating topological optimization method.The present application is aimed at solving the problems of existing design, such as unadjustable porosity distribution, gradient mutation, difficult to balance mechanical properties and bone integration, and the gap between topological optimization and manufacturing constraints.The method introduces nonlinear porosity gradient constraints and adaptive optimization mechanism in the process of topological optimization through the steps of geometric modeling and boundary condition definition, nonlinear porosity gradient field generation, finite element analysis, sensitivity analysis, density filtering and porosity constraint processing, optimization criterion updating and convergence judgment, and realizes the smooth transition of porosity from the core to the surface of the prosthesis.The present application can optimize the mechanical support and biological integration performance simultaneously, eliminate non-manufacturable structures, and adjust the gradient parameters and modularize the extension, providing an efficient and reliable calculation method for personalized hip joint prosthesis design, and having significant engineering and clinical application value.

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

The present invention provides a hip joint prosthesis, which comprises: a proximal end portion of a femoral stem; an extension stem; a filling member disposed between the proximal end portion of the femoral stem and the extension stem to connect the proximal end portion of the femoral stem and the extension stem; and a height adjustment assembly, at least a part of which is disposed between the proximal end portion of the femoral stem and the filling member and is telescopically arranged to adjust the height of the hip joint prosthesis by adjusting the distance between the proximal end portion of the femoral stem and the extension stem. This hip joint prosthesis solves the problem that the relative position between the filling block and the prosthesis in the prior art is fixed.

A method of implanting a hip joint prosthesis into a patient can include obtaining image data of hip joint anatomy of the patient. Physical activities that the patient desires to participate in subsequent to implanting the hip prosthesis can be determined. A size and an initial placement of the hip joint prosthesis based on the image data can be determined. A desired range of motion of the hip joint prosthesis based on the determined physical activities can be determined. A plan can be created comprising a desired implanted location of the hip joint prosthesis and based on the desired range of motion. The plan can be incorporated onto a guide. The plan can be executed with the guide thereby implanting the hip joint prosthesis into the patient at the desired implanted position.

The present invention discloses a method for calculating the physiological parameters of a model in hip prosthesis planning and an electronic device. The method includes obtaining a pelvic model, a left femoral model, a right femoral model, a first feature point set, a second feature point set, a third feature point set, a pelvic prosthesis model, and a femoral prosthesis model; determining a pelvic-pelvic prosthesis assembly model and a femoral-femoral prosthesis assembly model; updating the first feature point set and the target feature point set; splicing the pelvic-pelvic prosthesis assembly model, the femoral-femoral prosthesis assembly model, and the second femoral model according to a first splicing method and a second splicing method, respectively, and calculating the hip joint offset and the hip joint length based on the coordinates of the feature points in the second feature point set and the third feature point set, respectively. The present application calculates the hip joint offset and the hip joint length based on the feature points in the second feature point set and the third feature point set, respectively, and can accurately obtain the numerical values ​​of the postoperative hip joint physiological parameters through the preoperative planned model.

The application provides a femoral stem prosthesis and a hip joint prosthesis with the same, wherein the femoral stem prosthesis comprises: a mounting block comprising a first block body and a second block body, the second block body being arranged on the side of the first block body, and the first block body and the second block body being capable of relative movement; a guide structure arranged between the first block body and the second block body, the guide structure extending along the axial direction of the first block body; a locking assembly arranged between the first block body and the second block body to fix the first block body and the second block body; a support column swingably arranged on the second block body, and an acetabular component arranged on the support column; and a fixing mechanism arranged below the first block body and capable of being inserted into the medullary cavity. The technical scheme of the application effectively solves the problem that the relative position of the neck stem of the femoral stem and the stem body cannot be adjusted in the related art.

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

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

The invention provides an acetabular prosthesis which comprises an acetabular cup, an acetabular prosthesis body and an acetabular prosthesis body, and a containing part communicated with the outer surface of the acetabular cup is arranged in the acetabular cup; the outward-extending fixing piece is movably arranged in the containing part and is provided with a fixing position extending out of the acetabular cup and an avoiding position located in the containing part, and an acute-angle included angle or a right-angle included angle is formed between the moving direction of the outward-extending fixing piece and the axis of the acetabular cup; and the operating part is arranged on the acetabular cup and is in driving fit with the overhanging fixing part, so that the overhanging fixing part is switched between the fixing position and the avoiding position. According to the technical scheme, the problem that the acetabular cup fixing effect is poor in the prior art is effectively solved.

Periprosthetic bone fixation plates are disclosed including, for example, periprosthetic proximal femur plate, periprosthetic distal femur plate, periprosthetic humerus plate, periprosthetic ring plate, and periprosthetic troch plate. In use, the periprosthetic bone fixation plates are arranged and configured for use in periprosthetic fractures. That is, the periprosthetic plates include one or more features to facilitate positioning and securement of the bone fixation plate to a patients bone that previously received a surgically implanted orthopedic device or implant such as, for example, an intramedullary nail, a hip prosthesis, a knee prosthesis, etc. In use, the one or more features are designed and configured to facilitate avoidance of the previous surgically implanted orthopedic device or implant. In addition, the periprosthetic bone fixation plates are arranged and configured to facilitate plating of a longer working length as compared to existing bone fixation plates (e.g., plating from, for example, femoral condyle to greater trochanter).

The invention discloses a hip joint prosthesis, and belongs to the technical field of medical prostheses, the hip joint prosthesis comprises a femoral stem, a metal ball head and an acetabulum, the acetabulum is composed of a full-dome hemispherical acetabulum outer cup and an acetabulum lining which are mutually sleeved, and the top of the femoral stem is provided with a connector through an insertion rod for sleeving the metal ball head; the top of the metal ball head is inserted into the acetabular lining, an anti-rotation structure is arranged between the acetabular outer cup and the acetabular lining, a longitudinal groove is formed in the side wall of the femoral stem to increase the contact area between a bone and the femoral stem, a transverse groove used for preventing a prosthesis from sinking is formed in the inner side of the neck of the femoral stem, an acetabular screw is arranged on the acetabular outer cup in a penetrating mode, and the acetabular screw is connected with the acetabular outer cup. The end of the acetabulum screw is located between the acetabulum outer cup and the acetabulum lining, the acetabulum screw is specifically a titanium alloy self-tapping screw, the top of the acetabulum screw is provided with a cutting groove, the top end of the acetabulum screw is designed to be a blunt end, the outer surface of the femoral stem and the outer surface of the acetabulum outer cup are rough surfaces, and the acetabulum joint is high in strength and stability and low in abrasion rate.

The embodiment of the invention is suitable for the technical field of medical treatment, and provides a hip joint prosthesis knocking in-place judgment method and device, medical equipment and a medium, and the method comprises the steps: in the process of implanting a hip joint prosthesis into a target position, obtaining target sound information generated when the hip joint prosthesis is knocked; frequency spectrum energy generated by knocking is determined according to the target sound information; and generating a result whether the hip joint prosthesis is knocked in place or not according to the frequency spectrum energy and preset frequency spectrum energy. By adopting the method, a result whether the hip joint prosthesis is knocked in place or not can be accurately generated.

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

The utility model relates to the technical field of artificial hip joint prostheses, in particular to a hip joint femoral stem hollow conical head. Comprising a cone head surface (1), a cone side surface (2), a cone inner cavity (3) and a powder cleaning channel (5) which are connected in sequence, the conical head face (1) is used for sealing the in-conical cavity (3), the conical side face (2) is matched with a ceramic ball head or a metal ball head, the conical side face (2) is provided with a plurality of small protrusions (4) so that the femoral stem conical head can be matched with the ceramic ball head or the metal ball head more tightly, and the in-conical cavity (3) is used for increasing elastic deformation of the conical head. The small bulges (4) generate plastic deformation when the ceramic ball head or the metal ball head is assembled with the conical head, so that the contact area between the ball head and the conical head is increased, and the friction force is increased; and the powder cleaning channel (5) is used for cleaning unmelted powder in the cavity in additive manufacturing.

The present disclosure discloses the hip prosthesis containing zirconium-niobium alloy on oxidation layer and a preparation method thereof, the hip prosthesis comprises a femoral stem, a femoral head, liners and a shell; the shell and femoral stem are prepared by using zirconium-niobium alloy powder as a raw material, and performing Sinter-HIP, cryogenic cooling and surface oxidation; the prepared shell and femoral stem are provided with partitioned trabeculae and formed by 3D printing. The problem of traditional manufacturing methods cannot process complex structures and failure of connection between sleeve and femoral handle is solved by 3D printing technology. Meanwhile, the preparation method can improve the bonding strength between trabecular bone and solid, and improve the service life of prosthesis.

An artificial hip joint prosthesis and a method for mounting the same are provided. The artificial hip joint prosthesis includes a spherical chamber and a ball head. An outer spherical surface of the ball head fits with an inner spherical surface of the spherical chamber to form a spherical hinge. An inner spherical surface of the spherical chamber has an opening in an elliptical shape or a similar shape with a long axis and a short axis, to allow insertion of the ball head. The long axis of the opening in the elliptical shape or the similar shape has a length A, and the short axis of the opening has a length B. The ball head is mounted inside the spherical chamber and has a diameter C, in which B<A≤C.

The invention discloses a grinding control method and device of an electric grinding head, a storage medium and electronic equipment, and relates to the technical field of medical treatment. The method comprises the following steps: acquiring real-time position information of a grinding head center of an electric grinding head in a surgical navigation coordinate system in a bone grinding process; the position relation between the electric grinding head and a preset safety area is determined according to the real-time position information, the preset safety area is constructed based on the radius of the hip joint prosthesis, and the position relation represents whether the electric grinding head is located in the preset safety area or not; and a target control instruction for controlling the electric grinding head is determined according to the position relation, and the target control instruction is sent to a controller of the electric grinding head. The technical problem that in the hip joint operation process in the prior art, when an electric grinding head is used for bone grinding, the excessive grinding risk exists is solved.

The invention relates to the technical field of medical prostheses, in particular to a hip joint prosthesis with a bionic joint capsule and application of the hip joint prosthesis with the bionic joint capsule. A joint sliding capsule is additionally arranged between an acetabular cup and a femoral stem, so that the acetabular cup and the femoral stem can be stably and reliably connected, and ball socket stability is provided for initial postoperative recovery; meanwhile, mechanical support can be provided for tissue repair, and fusion of ligament and joint capsule soft tissue is promoted; the joint slide bag is of a porous structure, external tissue fluid flows in, is stored and is lubricated through the porous structure, and direct contact between friction pairs is reduced, so that the friction coefficient is reduced, and the wear resistance of the prosthesis is improved.

The present application relates to the field of medical devices, in particular to a reverse hip joint prosthesis for severe acetabular defects. The present application provides a reverse hip joint prosthesis, comprising a femoral side prosthesis and an acetabular side prosthesis, the femoral side prosthesis comprising a femoral cup and a femoral stem, the femoral cup and the femoral stem being connected by a connecting neck, the acetabular side prosthesis comprising an acetabular head and a bone body fitting part, the acetabular head and the bone body fitting part being connected by a head support, the femoral cup and the acetabular head being matched. The reverse hip joint prosthesis provided by the present application is used to help the subject to achieve the best surgical effect.

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.

Periprosthetic bone plates are disclosed including, for example, a periprosthetic distal femur plate. In use, the bone plate is configured for use in periprosthetic fractures. That is, the bone plate includes one or more features to facilitate positioning and securement of the bone plate to a patient's bone that previously received a surgically implanted orthopedic implant such as, for example, an intramedullary nail, a hip prosthesis, a knee prosthesis, etc. In use, the one or more features are designed and configured to facilitate avoidance of the previous surgically implanted orthopedic implant. In addition, the bone plate is configured to facilitate percutaneous insertion of the bone plate against the patient's bone while minimizing soft tissue irritation. In addition, and / or alternatively, the bone plate is configured to provide improved contouring to facilitate better positioning of the bone plate against the patient's bone (e.g., better contouring adjacent patient's greater trochanter).

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 invention discloses a method and system for intelligently recommending prosthesis parameters in hip joint replacement surgery, and relates to the technical field of hip joint prosthesis parameter recommendation, and the method comprises the steps of 1, information acquisition and analysis, 2, prosthesis material analysis and 3, prosthesis material and parameter confirmation. Personal information, hip joint pathological information, hip joint prosthesis material information and rehabilitation information of each historical patient are sorted and concluded to obtain a medical information set of each historical patient, and a preoperative information set of a target patient is matched with the medical information set of each historical patient; the method comprises the following steps: acquiring a target patient, acquiring a hip joint prosthesis material recommendation table of the target patient, verifying the material parameters of each prosthesis material and the reference parameters of the target patient to obtain a recommended material, and finally compensating the reference parameters based on the correction parameters of the recommended material, thereby improving the hip joint prosthesis matching rate of the patient and the postoperative prosthesis survival rate.

The embodiment of the invention provides a mechanical arm control method and device, electronic equipment and a storage medium, and is applied to the technical field of medical instruments, a pre-planned surgical scheme can be obtained, the surgical scheme comprises hip joint prosthesis mounting position information, and hip joint prostheses comprise a femoral prosthesis and an acetabular cup; thighbone registration points of the thighbone of the patient are recognized, and a plurality of first registration points are obtained; osteotomy of the femur is carried out according to the first registration point; performing acetabulum registration point identification on the hip bone of the patient to obtain a plurality of second registration points; and grinding the acetabulum according to the second registration point, so that the configuration of the registration points, the osteotomy of the thighbone and the grinding of the acetabulum can be realized through the mechanical arm according to a pre-planned surgical scheme, and the mounting precision of the hip joint prosthesis is improved.

The application discloses a kind of acetabular assembly, hip joint prosthesis and assembly method, a kind of acetabular assembly, comprising: acetabular outer cup and acetabular liner;Acetabular outer cup includes first cup body, first cup body is formed around first containing space, first cup body is provided with anti-rotation groove, anti-rotation groove extends from the cup mouth end surface of the first cup body to the inner wall of the first cup body;Acetabular liner includes second cup body, second cup body can be contained in first containing space, the outer wall of second cup body is provided with anti-rotation part, and anti-rotation part can be matched in anti-rotation groove;Acetabular assembly can be in the relatively stable pre-placed state between acetabular outer cup and acetabular liner, in pre-placed state, in the direction of the axis of first cup body inward, part of anti-rotation part enters anti-rotation groove.In the application, the probability that anti-rotation part is abraded or the degree that anti-rotation part is abraded can be reduced in the process of acetabular assembly assembly.