289 results about "Hip socket" patented technology

Arrangement for the intra-operative determination of the spatial position and angular position of a joint replacement implant, especially a hip socket or shoulder socket or an associated stem implant, or a vertebral replacement implant, especially a lumbar or cervical vertebral implant, using a computer tomography method, having: a computer tomography modeling device for generating and storing a three-dimensional image of a joint region or vertebral region to be provided with the joint replacement implant, an optical coordinate-measuring arrangement for providing real position coordinates of defined real or virtual points of the joint region or vertebral region and/or position reference vectors between such points within the joint region or vertebral region or from those points to joint-function-relevant points on an extremity outside the joint region or vertebral region, the coordinate-measuring arrangement comprising a stereocamera or stereocamera arrangement for the spatial recording of transducer signals, at least one multipoint transducer, which comprises a group of measurement points rigidly connected to one another, and an evaluation unit for evaluating sets of measurement point coordinates supplied by the multipoint transducer(s) and recorded by the stereocamera, and a matching-processing unit for real position matching of the image to the actual current spatial position of the joint region or vertebral region with reference to the real position coordinates of the defined points, the matching-processing unit being configured for calculating transformation parameters with minimalization of the normal spacings.

Embodiments of the invention relate to walking/running braces and to devices for enhancing locomotion, specifically human bipedal locomotion. More particularly, it relates to a controlled mechanical device which provides support of the torso via the hip sockets, reduces the metabolic energy associated with walking/running and reduces the incidence of falls caused by insufficient leg thrust. Embodiments of the invention also relates to reducing the strain and metabolic energy consumption associated with walking/running with a heavy backpack or other significant carried load.

A modular hip prosthesis, comprising: (a) a proximal segment including a neck lockingly engageable with a femoral head component and a male tapered portion; (b) a distal segment having a proximal end and a distal tip, the distal segment further formed with a male tapered portion adjacent the proximal end thereof; and (c) a metaphyseal segment having a proximal end and a distal end, the metaphyseal segment preferably including a bone engaging outer surface portion, and further including an axial bore therethrough, the axial bore including first and second female tapered portions formed adjacent the proximal and distal ends thereof, respectively. The first female tapered portion of the metaphyseal segment is dimensionally configured to lockingly engage the male tapered portion of the proximal segment. The second female tapered portion of the metaphyseal segment is dimensionally configured to lockingly engage the male tapered portion of the distal segment. Optionally, a screw dimensionally configured to pass through aligned bores in the proximal, metaphyseal and distal segments is threadably engaged with a threaded bore formed in the proximal end of the distal segment.

The present invention relates to acetabular cup assemblies for ball-and-socket joint protheses. The acetabular cup assembly is essentially characterized by the fact that it comprises a cup 20 of outside general shape that is substantially hemispherical, the cup including an open hollow housing 21, and an insert 23 in which a hemispherical cavity 24 is made suitable for receiving a spherical head to co-operate in rotation therewith, the insert being of outside shape that is substantially complementary to the housing 21 so as to be capable of being engaged therein, the cup 20 comprising a central base 30 constituting the polar cap of the cup 20, a determined number of cup portions 31-33, and means 34 for associating the cup portions 31-33 at least with the central base 30 to form the cup 20 with its housing 21. The invention is applicable to making a prosthesis, in particular a hip prosthesis or the like.

The invention discloses a surgical navigation system, a surgical robot system for acetabulum osteotomy and a control method of the surgical robot system. The surgical navigation system is used for acquiring image data of a hip joint image and establishing a hip joint three-dimensional model based on the image data, thereby obtaining the center position of a sphere where the acetabular fossa is located. The surgical navigation system, the surgical robot system for acetabulum osteotomy and the control method of the surgical robot system can realize automatic search, move to the center of the acetabular fossa, and control an end tool at the end of a mechanical arm system to carry out rotary osteotomy operation on the acetabulum according to a motion instruction sequence, thereby improving theaccuracy of the operation. The stability of osteotomy surgery is improved by surgical operation based on a mechanical arm. The surgery can be stopped at an edge of a safe area, and thus the safety ofthe surgery is ensured. In addition, the rotary osteotomy surgery can be navigated in real time, and thus the convenience of surgery and the experience of a user are improved.

The disclosure belongs to the technical field of lower limb exoskeleton, and specifically discloses a hip-knee passive exoskeleton device based on clutch time-sharing control, comprising a waist support subassembly, connection subassemblies, thigh subassemblies, clutch subassemblies, shank subassemblies and elastic member subassemblies, the waist support subassembly is configured to be connected to the waist, the connection subassemblies are configured to include two connection subassemblies which are arranged in bilateral symmetry on two sides of the support subassembly, the thigh subassemblies are configured to include two thigh subassemblies which are respectively connected to the two connection subassemblies, the clutch subassemblies are configured to include two clutch subassemblies which are respectively mounted on the two thigh subassemblies, the shank subassemblies are configured to include two shank subassemblies which are arranged in bilateral symmetry below the two thigh subassemblies, the elastic member subassemblies are configured to include two elastic member subassemblies which are arranged in bilateral symmetry. The disclosure can assist the movements of the knee and hip joints, thereby improving the energy utilization efficiency and reducing the metabolic energy consumption of walking.

An implant is provided for replacing the proximal portion of a femur having a substantially intact natural femoral neck and a lateral side opposite the femoral neck, with a bore extending from the femoral neck through a lateral side of the femur. The implant comprises a sleeve having a flange for engaging a proximally facing resected surface of the neck surrounding the bore in the femur and having a bore with an inwardly tapered conical portion. A shaft member having a longitudinal axis, a distal end, and a proximal end is placed in the bore through the femur. The shaft member has an intermediate conically tapered male portion for coupling to the conically tapered bore of the sleeve and a proximal end having a conically tapered portion. A head member having a distal end and a proximal substantially-spherical portion and a tapered recess is configured for positioning in a natural or prosthetic hip socket.

A hip implant assembly including a spherical shaped ball and an elongated stem. An annular defining rim separates the ball from the stem and abuts, in a maximum inserting condition, over an exterior reconditioned surface of the femur and upon inserting the stem within an interior passageway formed within the femur. A cup shaped support seats the ball in a universally articulating permitting fashion via a flexible and resilient ligament which extends from the ball and is received within a recess passageway of the cup. The cup also includes a mounting surface with a central projecting portion which is in turn resistively fitted within an undercut defined recess formed in the ilium bone in communication with a base surface of the reconditioned acetabulum socket. A corresponding installation kit assists the preparation of the femur and ilium bones defining the hip joint, as well as the installation of the implant body into the upper conditioned femur end and the cup shaped and outer socket support to a reconditioned acetabulum defined in the ilium bone.

The embodiment of the invention discloses a joint replacement surgery navigation system and method. The system comprises a preoperative planning module, and a navigation registration module, wherein the preoperative planning module is used for performing segmentation and reconstruction according to obtained hip joint medical image data to obtain a hip joint three-dimensional model, performing preoperative planning, and determining the placement position, size and angle of a prosthesis; and the navigation registration module is used for determining the spatial positions of the pelvis and the femur according to a pelvis reference frame and a femur reference frame, registering the hip joint three-dimensional model according to the spatial position relationship between an operation probe and the pelvis reference frame and the femur reference frame to obtain a hip joint solid model, and according to the hip joint solid model, controlling a surgical instrument for clamping the prosthesis to place the prosthesis in the hip joint. Through preoperative planning of information such as an operation approach and a prosthesis placement position, a spatial positioning method is used during an operation to track the operation instrument, navigation support is provided for a doctor while the operation accuracy is improved, and the operation is safer and more efficient.

A hip joint prosthesis with a shaft fastened on the shaft head of which there is a ball head which in turn is inserted in a rotatable manner in the spherical recess of a socket insert and the socket insert is coupled with a hip socket wherein the shaft can be implanted in the femur and the hip socket can be implanted in the pelvic bone. To avoid transmission of vibrations, damping elements of a vibration-damping material are arranged at the coupling points of the shaft head with the ball head and/or of the socket insert with the hip socket.

A patient with a dislocated hip lies on a planar pad having side rails along which slides a frame having upright members on each side of the pad and a horizontal member connecting the top of the upright members. A first winch mounted on an upright member controls cables connected to a mid-portion of a leg sleeve on the patient to lift the patient's leg. A second winch mounted on the same upright member controls cables connected to a top portion of the leg sleeve to pull the patient's hip outwardly to a normal position in the hip socket.

A scalable modular hip resurfacing arthroplasty system includes (1) an alignment guide for precise guide pin insertion, (2) a modular cannulated cylindrical reamer assembly for accurate femoral head cylindrical reaming and central bone channel drilling, (3) a saw guide for an accurate femoral head osteotomy, (4) a soft tissue protector with a stepped design to shield and retract tissues, (5) a hip retractor that seats onto a prepared femur, (6) an outer hole drill guide aiding drilling of peripheral holes, and (7) a femoral resurfacing implant with a cap portion and central stem adapted for multiple modular attachments including plates. A method for preparing the proximal femur for hip resurfacing with novel stepped cylindrical femoral head osteotomy and central bone channel drilling, leaving an intact collar of cortical bone above the femoral head articular rim.

The invention provides a preparation method of an artificial hip joint adopting a PEEK composite material and being suitable for 3D printing. According to the preparation method, the three-dimension model of the artificial hip joint is designed through the digital technology, meanwhile, the contact surface, with the human bone, of the artificial hip join is designed to be of the reticular groove structure or the cellular hole structure, then the PEEK composite material containing CaCO3 crystal whiskers is adopted as the 3D printing material of the artificial hip joint, the artificial hip jointis printed by adopting a special 3D printer according to the designed modelling data, then surface treatment and coating of active bone ointment are carried out on the contact face, with the human bone, of the artificial hip joint, and thus the artificial hip joint with the excellent property is obtained. The method can be used for rapidly preparing the individualized artificial hip joint, the prepared artificial hip joint has good mechanical property and good wear-resistant property, the elasticity modulus is similar to that of the human skeleton, meanwhile, the artificial hip joint has goodbiological activity and good bone inductivity, and can induce osteanagenesis, and thus the joint interface of the artificial hip joint and the human bone is in good healing.

A process for preparing the CaO-TiO2-ZrO2-P2O5 series bioceramic film on the surface of Ti or Ti-alloy material in order to provide the substitute for reparing the human hard tissue (femur, hip joint, etc) features sue of microarc oxidizing technique, in which Ti or Ti-alloy is used as anode, stainless steel or Ti is used as cathode, and DC power supply or DC pulsive power supply is used. Its advantages are high bioactivity, high adhesion and high chemical stability.

The invention discloses a method and a system for acquiring posture of an acetabular bone and a femoral head in novel hip arthroplasty. The method comprises the following steps of: setting pressure sensors and/or touch sensors and an image sensor on a femoral head false test mould to form a sensor array; acquiring the contact and stress condition and position information of the femoral head false test mould and acetabular bone by the sensor array, and sending a signal; and receiving the signal by a receiving end, and displaying the received signal on a display module, so as to acquire the analogue postures of the acetabular bone and the femoral head. The system comprises the sensor array, a necessary external circuit and a signal receiving and displaying device for receiving and displaying the signal emitted by the external circuit. According to the invention, the existing posture of the femoral head false body can be accurately simulated during the hip arthroplasty, so that a doctor can intuitively see the position and movement status of the femoral head false body during the hip arthroplasty, and further, the success rate and the surgical treatment of the hip arthroplasty can be greatly improved.

The invention provides a metal hip joint prosthesis with a porous layer structure. The metal hip joint prosthesis comprises an acetabulum outer cup, an acetabulum lining, a femoral ball head and a hipjoint femoral stem, wherein the hip joint femoral stem comprises a femoral stem neck part, a femoral stem near end and a femoral stem far end; the upper end of the hip joint femoral stem neck part issleeved by the femoral ball head in cooperation with the acetabulum lining for use; the acetabulum outer cup sleeves outside the acetabulum lining; the contact surfaces of the metal hip joint prosthesis and host bone tissue are of porous structures similar to human bone trabecula in three-dimensional communication; the metal hip joint prosthesis specifically comprises the hip joint femoral stem with a pore layer and the porous acetabulum outer cup; the femoral stem far end is of a whole or surface porous structure; and the pore diameter of the pore layer of the femoral stem far end is smallerthan the pore diameter of the pore layer of the femoral stem near end. The invention also discloses a method for preparing the hip joint femoral stem and the acetabulum outer cup by integrated molding with a 3D printing technology. The metal hip joint prosthesis with the porous layer structure provided by the invention facilitates ingrowth of new bone tissues, and reduces the risk that a pore layer prepared through a surface treatment method is prone to falling off.

The invention discloses a total hip replacement preoperative planning method and device based on deep learning and X rays. The method comprises the steps of obtaining an X-ray image of the hip joint,wherein the X-ray image of the hip joint comprises an image of a reference object, and the reference object is a reference object with the known size; restoring the size of the X-ray image of the hipjoint according to the image size of the reference object and the proportion of the actual size of the reference object; identifying the restored X-ray image of the hip joint based on a deep learningmodel, and determining a leg length difference, an acetabular cup position and a specification model of a femoral stem prosthesis; and determining the position of an osteotomy line according to a rotation center of the femoral stem prosthesis and a rotation center of the acetabular cup determined in the X-ray image identifying process of the hip joint. The invention aims to provide a more convenient and accurate preoperative planning mode for providing better preoperative support for a total hip replacement surgery.