308 results about "Hip socket" patented technology

A trial system for a prosthesis is described. The prosthesis can include an acetabular prosthesis generally for implantation in an acetabulum and the surrounding pelvis. The acetabular prosthesis includes an acetabular cup having a substantially concave inner surface and a substantially convex outer surface. One trial shell or a collection of trial shells are provided to trial a range of motion of the hip joint before implanting a shell prosthesis into the acetabular prosthesis.

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.

A trial system for an acetabular prosthesis is described. The acetabular prosthesis is generally for implantation in an acetabulum and surrounding pelvis. The acetabular prosthesis includes an acetabular cup having a substantially concave inner surface and a substantially convex outer surface. The described acetabular prosthesis is especially useful in revision hip implant procedures where significant bone tissue loss has occurred either in or around the acetabulum and / or the pelvis. A trial shell is provided to trial a range of motion of the hip joint before implanting a prosthetic shell into the acetabular prosthesis.

A CAS system and method for measuring surgical parameters during hip replacement surgery to guide an operator in inserting a hip joint implant in a femur, comprising a first trackable reference in fixed relation with the pelvis and a registration tool. A sensor apparatus tracks the first trackable reference and the registration tool. A controller unit is connected to the sensor apparatus so as to receive tracking data for the first trackable reference and the registration tool. The controller unit has a position and orientation calculator to calculate from the tracking data a position and orientation of the pelvic trackable reference to track the pelvic frame of reference, and of the registration tool to produce a femoral frame of reference at two sequential operative steps. A reference orientation adjustor receives tracking data for the pelvic frame of reference, and the femoral frame of reference associated with the first trackable reference, to orient the femoral frame of reference in a reference orientation with respect to the pelvic frame of reference, and to produce a reference adjustment value as a function of the reference orientation. A surgical parameter calculator receives tracking data from the registration tool to calculate surgical parameters as a function of the reference adjustment value, the surgical parameters at the two sequential operative steps being related by the reference orientation.

An interlocking reversed hip prosthesis including an acetabular cup being implanted in the acetabular cavity having an acetabular articular ball, firmly attached to the central portion of the cup via Morse taper. The femoral component having a hemispherical cup attached to the neck of the implant via Morse taper in a modular fashion thereby allowing use of several length necks. After implantation of the acetabular cup and the femoral cup, the two members are assembled together for relative movement. The acetabular cup secured by several screws or resorbable fixation studs. During range of motion, the edge of the femoral cup becomes inserted into space located between the acetabular cup and the acetabular ball and becomes restrained thus reducing the likelihood of dislocation during extreme range of motion.

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.

Hip protector (10) worn primarily by the elderly, preventing / reducing hip fractures, resulting from a fall. The protector is made of all-soft materials using a matching pair of hip protective holsters (14 / 24) interconnected by a waist encircling belt (16) from which a pair of protective pad pouches (20) are suspended in the holsters over the user's hips and secured in place by leg encircling bands (18 / 26). The protective pouches include foam bodies (54) with underlying, intermediate, spacer elements (42) and a bottom cover (50), all in combination creating an enclosed, moisture-holding, air chamber (80). The protector is worn under clothing (under pants, bed clothes or swimming trunks, etc.), light weight, easily put on & removed, does not interfere in daily living (sleeping, usual body movements, restroom or bathing activities, etc.), and, when the user sweats, the surface of the user's skin under the hip protector is maintained dry using “one-way-moisture flow” material.

Instruments for use in anterior approach total hip arthroplasty. Instruments according to certain embodiments of the invention connect to a shaping member such as a broach, reamer or osteotome that is used to prepare the intramedullary canal of a desired femur or other bone for total hip arthroplasty. Such an instrument according to such embodiments can be configurable to allow operation on either the left or right leg, and in doing so to provide lateral offset and anterior offset of the instrument handle relative to the shaping member so that the patient's gut, musculature or other bodily portions may be avoided while still providing desired leverage and control over the shaping member to prepare the intramedullary canal.

A CAS system for measuring surgical parameters during hip replacement surgery comprises a first tracking reference in fixed relation with the pelvis to form a frame of reference. A registration tool is trackable. A sensor apparatus tracks the first tracking reference and the registration tool. A controller unit receives tracking data for the first trackable reference and the registration tool. The controller unit has a position and orientation calculator for calculating from the tracking data a position and orientation of the pelvic tracking reference to track the frame of reference, and of the registration tool to produce femoral models at a first and a second sequential operative steps. An alignment adjustor aligns the femoral models with the frame of reference. A surgical parameter calculator calculates surgical parameters as a function of the femoral models as aligned by the alignment adjustor.

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.

A guide apparatus for preparing the femur of a patient with a rotary mill to receive a femoral hip prosthesis includes a V-shaped guide body having a lower end base portion adapted to extend into the intermedullary canal of the femur and an upper end portion comprised of at least two spaced apart struts so that the overall guide body had a configuration substantially the same as the prosthesis body sought to be implanted in the patient. The lower end of the guide body base provides one or more hemispherical receptacles for holding the hemispherical end portion of a spinning mill bit. A preferably removable transverse guide rail has connection pins at one end portion thereof for forming a connection with the upper end of the guide body at one of the struts, the arm having a curved surface that is adapted to guide the mill bit during preparation of the intermedullary canal of the patient's femur for receiving a hip prosthesis thereafter.

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.

A method for determining the orientation of a first object in space, wherein the first object is interactive with a second object, the method comprising the steps of:using kinematic action to generate a first data set reflective of the current spatial relationship between the first object and the second object; andcomparing the first data set with a database of known data sets reflective of known spatial relationships between the first object and the second object in space so as to identify the current orientation of the first object in space.

A spring-loaded, self-retaining, clamp like alignment device used to guide the placement of the acetabular component during total hip arthroplasty is disclosed. The device comprises two longitudinal elements: the first longitudinal element has a proximal end with a handle, a groove within and a spring loaded into the groove. The second longitudinal element has a distal end to which an acetabular component is attached and a mid-section that fits into the groove of the first longitudinal element and a proximal end with a knob. When the hook present at the distal end of the first longitudinal element is placed into the sciatic notch in the pelvic bone and the proximal end clipped to the mid-section of the second longitudinal element, the acetabular component at the distal end of the second longitudinal element is consistently positioned in the acetabulum at 45-degree abduction and 20-degree anteversion. While the surgeon impacts the acetabular component into place the spring located in the proximal end of the first longitudinal element maintains the proper alignment of the acetabular component and keeps the deep part of the clamp from injuring structures traversing the sciatic notch.

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.

A powered prosthetic thigh can have a proximal portion configured to couple to a prosthetic hip socket and can have a distal portion attached to the proximal portion. The distal portion can have a distal connector configured to couple to a prosthetic knee. The powered prosthetic thigh can also have a computer controlled actuator configured to rotate the prosthetic thigh relative to the prosthetic hip socket.

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.

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.

The present invention essentially relates to a hip joint socket system for a "press-fit" anchorage in the bony acetabulum that allows the inserts that articulate with the artificial head to be connected securely, and, using said inserts, also allows the center of the rotation of the socket to be reconstructed, the risk of luxation to be eliminated, and the plane of load application to be varied across an infinite range of positions within a defined angular range.

A hip joint prosthesis has a socket part and a head rotatably arranged within the socket part. The socket part has an outer side facing away from the head and the outer side has a gliding surface configured to rotatably support the socket part in a natural hip socket. The socket part is polished on the outer side for forming the gliding surface. A stop is provided on the head or on the hipbone for limiting rotation of the socket part. The socket part has an angled edge portion that is arranged in an edge depression of the hip socket and strikes on the hipbone. The rotation of the socket part is limited in this way.

A suture passer including a shaft having an axis; a first jaw mounted to the shaft in alignment with the axis, the first jaw being configured to releasably support a length of suture thereon; a second jaw movably mounted to the shaft; and a needle movably mounted to the shaft, the needle having a hook and being configured to reciprocate in alignment with the axis so that the hook can selectively pass by the second jaw and engage suture releasably supported on the first jaw; wherein the first jaw includes a spring for selectively binding the suture to the first jaw.

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.

The invention relates to a lower limb rehabilitation training machine. The lower limb rehabilitation training machine comprises an outer frame, two ankle exercising mechanisms, two parallelly arranged leg extension mechanisms, two knee joint exercising mechanisms, two hip joint exercising mechanisms, an adjustable backrest mechanism and a controller, wherein the ankle exercising mechanisms, the leg extension mechanisms, the knee joint exercising mechanisms and the hip joint exercising mechanisms are in one-to-one correspondence; each ankle exercising mechanism is connected with the lower portion of the corresponding leg extension mechanism, and the upper portion of each leg extension mechanism is hinged to the front edge of the seat plate of the adjustable backrest mechanism; the knee joint exercising mechanisms are mounted on the outer frame, and the power output end of each knee joint exercising mechanism is connected with the corresponding leg extension mechanism; the two hip joint exercising mechanisms are mounted on the outer frame; the ankle exercising mechanisms, the knee joint exercising mechanisms and the hip joint exercising mechanisms are electrically connected the corresponding pins of the controller. The lower limb rehabilitation training machine has the advantages that labor input is reduced, and the three joints of legs can be passively and safely exercised at home.

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.

According to one embodiment, a preoperative planning method performed by a computer for hip replacement arthroplasty, includes a base jig setting step of setting a three-dimensional image of a base jig having three or more columnar supports which abut on three or more reference points of the pelvis with respect to the three-dimensional image of the pelvis obtained at the image reconstruction step, and a parameter acquisition step of parameterizing and acquiring a direction of an indicator which runs through a predetermined position on the base jig in the three-dimensional image of the base jig set at the base jig setting step and becomes parallel to the installation direction of the joint prostheses determined at the joint prostheses determination step.

Hip protector (10) worn primarily by the elderly, preventing / reducing hip fractures, resulting from a fall. The protector is made of all-soft materials using a matching pair of hip protective holsters (14 / 24) interconnected by a waist encircling belt (16) from which a pair of protective pad pouches (20) are suspended in the holsters over the user's hips and secured in place by leg encircling bands (18 / 26). The protective pouches include foam bodies (54) with underlying, intermediate, spacer elements (42) and a bottom cover (50), all in combination creating an enclosed, moisture-holding, air chamber (80). The protector is worn under clothing (under pants, bed clothes or swimming trunks, etc.), light weight, easily put on & removed, does not interfere in daily living (sleeping, usual body movements, restroom or bathing activities, etc.), and, when the user sweats, the surface of the user's skin under the hip protector is maintained dry using "one-way-moisture flow" material.

The invention provides a dummy calibration test system capable of being controlled in a centralized way. According to the dummy calibration test system capable of being controlled in the centralized way, seven devices of a head part calibration test stand, a neck part calibration test stand, a chest part calibration test stand, a pleural region calibration test stand, a knee part calibration test stand, a foot part calibration test stand and a hip joint calibration test stand are integrated together via control analysis equipment. When calibration is performed on the local joints of a dummy by each calibration test stand, data acquisition and analysis are performed via the unified control analysis device so that consistency of calibration results can be effectively enhanced and the dummy calibration results are enabled to be more accurate. All parts of the dummy can be calibrated by the system so that use is quite convenient.

A goniometer for measuring artificial acetabular cup angles having the function of measuring an inclination angle and anteversion angle and a method for measuring the artificial acetabular cup angle using the same are disclosed. This goniometer measures the inclination angle or anteversion angle by using the first angle measuring unit, and then measures the inclination angle or anteversion angle by using the second angle measuring unit. Accordingly, it becomes possible to obtain precise operation angles of the acetabular cup easily and quickly, so it is possible to perform the artificial hip joint operation more precisely and quickly.