56results about "Shoulder joints" patented technology

The application discloses a mold for manufacturing a shoulder joint spacer and a preparation method thereof, belongs to the technical field of shoulder joint spacer preparation, and solves the problems of uneven distribution of medicine application grooves and the inability to flexibly adjust the size, length and the like according to requirements, and comprises a lower mold box, an upper mold box, an intramedullary bone cement silica gel forming adjusting mold and a ball head forming adjusting mold which are sleeved in the lower mold box and the upper mold box, a pouring gate which is arranged on the lower mold box and the upper mold box, a plugging plug which is arranged in the pouring gate, a first positioning support column and a second positioning support column which are arranged in the lower mold box, a third positioning support column and a fourth positioning support column which are arranged in the upper mold box, and a metal support rod which is arranged on the axial center lines of the intramedullary bone cement silica gel forming adjusting mold and the ball head forming adjusting mold; and the intramedullary bone cement silica gel forming adjusting mold and the ball head forming adjusting mold are uniformly provided with protruding portions.

The utility model relates to a kind of shoulder joint glen positioning device, the shoulder joint glen positioning device includes: positioning main body, main sliding member and sliding pointer, the positioning main body is equipped with guide slot, the guide slot extends along the axial direction of the positioning main body, the main sliding member includes longitudinal rod and transverse rod, the longitudinal rod is cooperated in the guide slot and adjustable along the axial position of the positioning main body, the transverse rod is connected with the longitudinal rod and extends along the radial direction of the positioning main body, the sliding pointer is connected with the transverse rod, and adjustable along the position of the extension direction of the transverse rod.The shoulder joint glen positioning device of the utility model can satisfy the use demand of different patients, and positioning accuracy is higher, and surgical effect is better.

The described system designed to promote the biological attachment of fibrous connective tissue to a bone implant features a bone implant with a scaffold defining a porous attachment surface, a suction port, and a manifold that distributes a negative pressure gradient across the attachment surface. The system also includes an extracorporeal vacuum pump and a percutaneous suction hose connecting the suction port of the implant to the vacuum pump. The implant is placed in the patient's body with connective tissue applied over the attachment surface, and the suction hose is attached and connected to the vacuum pump. The vacuum pump, operating outside the body, creates a negative pressure gradient over an extended period, promoting the growth of slow growing Sharpey's fibres for superior biological integration. A highly vascularised tissue graft, such as a pedicled muscle flap, may be applied adjacent to the avascular tendon to enhance endogenous growth factor migration.

To provide a device, a system, and a method for a preoperative plan and an intraoperative guidance for orthopedic surgery of a fractured joint suffering bone fragmentation.SOLUTION: A surgery system can be configured to acquire image data of a joint including at least a portion of humerus, segment the image data to determine a shape of a diaphysis of the humerus, determine a shape of the humerus before it becomes the estimated pathosis on the basis of the determined shape of the diaphysis, identify one or more bone chips in the image data on the basis of the estimated shape of the humerus, and generate an output on the basis of the bone chips identified in the image data.SELECTED DRAWING: Figure 35

The described system, designed to promote the biological attachment of fibrous connective tissue to a bone implant, features a bone implant having a scaffold defining a porous attachment surface, a suction port, and a manifold distributing a negative pressure gradient across the entire attachment surface. The system also includes an external vacuum pump and a percutaneous suction hose connecting the implant's suction port to the vacuum pump. The implant is placed inside the patient's body with the connective tissue grafted to the attachment surface, the suction hose is attached, and it is connected to the vacuum pump. The vacuum pump, operating outside the body, creates a negative pressure gradient over an extended period, promoting the growth of Sharpey's fibers, which grow slowly for optimal biological integration. To promote endogenous growth factor transport, highly vascularized tissue grafts, such as pedicled muscle flaps, may be grafted adjacent to avascular tendons.

One aspect relates to a device for producing a spacer havinga stem mold which has an inner space, wherein the inner space is accessible via a proximal opening and wherein the stem mold has a proximal wall which peripherally delimits the proximal opening of the stem mold,a head mold which has in the interior thereof a hollow space, wherein the hollow space has a spherical surface-shaped inner surface and is accessible via a distal opening, wherein the head mold has a distal wall which peripherally delimits the distal opening of the head mold,a metal core which has a stem part, a head part and a flange, wherein the flange projects out from the metal core, is arranged between the stem part and the head part and has a proximal surface and a distal surface,wherein the stem mold and the stem part are shaped such that the stem part is arranged in the inner space, when the proximal wall is resting against the distal surface, and wherein the head mold and the head part are shaped such that the head part is arranged in the hollow space, when the distal wall is resting against the proximal surface.

Systems and methods for opposing abnormal motion of an adjacent bone are provided. One exemplary embodiment of a surgical method includes delivering and securing a bone barrier to a bone bed of a glenoid such that at least a portion of the bone barrier extends laterally beyond the bone bed and can oppose, prevent, and / or reduce abnormal motion of an adjacent bone (e.g., a humeral head). The bone barrier can be secured along a periphery of a glenoid of a shoulder. More particularly, the bone barrier can be placed and secured such that at least a portion of the bone barrier extends laterally over the glenoid and can oppose abnormal motion of the humeral head. In some embodiments at least one suture anchor and suture can secure the bone barrier to the bone bed.

Disclosed herein are implants with sensors and methods for powering implants with sensors. A joint implant according to the present disclosure can include a first implant and a second implant in contact with the first implant. The first implant can be coupled to a first bone of a joint. The first implant can include an energy generator coupled to a transducer. The second implant can include at least one sensor, a battery coupled to the at least one sensor, and a receiver coupled to the battery. The receiver can be disposed within the second implant adjacent the transducer. Energy from the energy generator can be transmitted from the transducer of the first implant to the receiver of the second implant.

The present disclosure includes a flexible stem of a medical implant for implantation into a bone. The stem includes a stem shaft having a first stem shaft end and a second stem shaft end; and a plurality of projections, each of the plurality of projections having a first projection end and a second projection end, wherein the first projection end of each of the plurality of projections is connected to the stem shaft.

An instrument for preparing a bone to receive a prosthesis comprises a shaft extending along a central axis from a distal end to a proximal end, a distal reaming element comprising a boss reamer located at the distal end, and a broaching element located proximally of the distal reaming element and configured to rotate about the shaft, wherein the broaching element comprises a plurality of spokes extending radially outward of the distal reaming element. A method of modifying a humeral head to receive a stemless humeral implant using an instrument having an integrated broach and reamer comprises resecting a bone to form a resected surface, inserting the instrument into the resected surface, rotating a shaft of the instrument to rotate a distal reamer and form a center boss, and advancing a broach of the instrument into the resected surface to form a plurality of slots extending from the center boss.

A cement restrictor inserter instrument (130) comprises an inserter (131) having a handle (132) at a proximal end, a cement restrictor attachment formation (137) at a distal end for releasably attaching a cement restrictor (150), a shaft (136) extending from the proximal end to the distal end and a stop (138) on the shaft and between the proximal end and the distal end; and a body (140) having a shape corresponding to the shape of an orthopaedic prosthetic implant, a spacer (142), a visible depth guide feature (190) and a releasable attachment mechanism by which the body is releasably attachable to the shaft, and wherein the spacer is configured to position the visible depth guide feature at a fixed position relative to the inserter when the spacer abuts the stop corresponding to a target cement restrictor position when the visible depth guide feature is aligned with a feature of a bone of a patient in which the cement restrictor is to be inserted.

An electrically driven orthopedic impactor may include an adapter for interfacing between the adapter and a surgical implement. The adapter may have a first surface that transmits a forward impact energy and a second surface that transmits a reverse impact energy. The adapter can connect to the surgical implement and to the orthopedic impactor without the use of external tools. The adapter may connect to the impactor via a pushing motion and may disconnect from the impactor via a reciprocal sleeve. A sensor can communicate a spatial orientation of the adapter with respect to at least one reference point that is not located on the adapter or the impactor. A communication device may transmit frequency information or impact energy information to the impactor based on a type of surgical implement attached to the adapter.

A glenoid baseplate is provided that has a transverse body and an elongate body. The transverse body has a first side configured to engage scapula bone of a patient, a second side configured to face away from the first side, and a plurality of anchor apertures. The anchor apertures are formed between the first side and the second side. The transverse body also can have an arcuate or circular periphery that has an anterior portion configured to be oriented toward an anterior side of a scapula and a posterior portion that is configured to be oriented toward a posterior side of the scapula. The elongate body is disposed along a longitudinal axis between an end coupled with the first side of the transverse body. The longitudinal axis of the elongate body is off-set from the center of the circular periphery.

To address the requirement for improving glenoid implants used for shoulder arthroplasty surgery.SOLUTION: A glenoid implant 100 comprises a base plate 140 including a central opening penetrating therethrough, a first leg 110 extending from the base plate 140 in a first direction, a second leg 120 extending in a second direction, and a third leg 130 extending substantially in a third direction. The first to third legs 110, 120 and 130 respectively penetrated by fastening elements 115, 125 and 135 for assisting to fix the legs to corresponding parts of the patient's shoulder blades, include apertures 111, 121, and 131 configured to receive portions of the fastening elements.SELECTED DRAWING: Figure 1

A compression fastener may include a shaft and a helical thread disposed about the shaft. The shaft may include a proximal end, a distal end, a proximal shaft portion, and a distal shaft portion. The helical thread may include at least one concave undercut surface and a plurality of pitches that may include at least one first pitch along the proximal shaft portion and at least one second pitch along the distal shaft portion. The at least one concave undercut surface may be angled towards one of the proximal end and the distal end of the shaft, and the at least one first pitch and the at least one second pitch may not be equal to each other.

A glenoid baseplate is provided that has a transverse body and an elongate body. The transverse body has a first side configured to engage scapula bone of a patient, a second side configured to face away from the first side, and a plurality of anchor apertures. The anchor apertures are formed between the first side and the second side. The transverse body also can have an arcuate or circular periphery that has an anterior portion configured to be oriented toward an anterior side of a scapula and a posterior portion that is configured to be oriented toward a posterior side of the scapula. The elongate body is disposed along a longitudinal axis between an end coupled with the first side of the transverse body. The longitudinal axis of the elongate body is off-set from the center of the circular periphery.

Methods, systems and devices for pre-operatively planned shoulder surgery guides and implants. Pre-operative planning methods for designing a shoulder surgery guide based on considerations of multiple factors affecting the outcome of shoulder surgery. Methods of using surgery guides and implants in patients undergoing shoulder surgery.

Implants, devices, systems and methods for replacing an articulation surface in a joint. An implant including a head with an articulating surface and a base surface. An implant including a base member. An implant including an extension / distraction mechanism dynamically connecting the head of the implant to the base member of the implant. A method of inserting an implant into a joint including inserting a base member of the implant into a prepared glenohumeral joint, placing a head of the implant into a glenoid cavity, positioning an extension / distraction mechanism of the implant to dynamically adjust a total length of the implant, and securing the total length of the implant.

This utility model provides a quick-assembly glenoid prosthesis, relating to the field of medical device technology. Its key technical features include a base and a glenoid head, as well as a connector and a locking device. The base includes a base plate and a limiting post. In the initial state, the connector and the locking device are assembled with the glenoid head. The glenoid head is hemispherical with a groove at its bottom and a through hole at its top, communicating with the groove. The connector is fixed within the groove, and the locking device passes through the connector. After installation, the base plate abuts against the bottom of the groove, and the locking device is inserted into the limiting post. The design of the connector and locking device allows the glenoid head to be accurately and quickly assembled with the glenoid base in a confined surgical space, reducing surgical time and lowering the incidence of postoperative complications.

A universal payload may be integrated with each of a plurality of different orthopedic implants configured to replace or functionally supplement a natural joint of a body. In one aspect, a universal payload includes an electronics assembly, a housing enclosing the electronics assembly, and a payload coupling feature configured to couple to each of a plurality of different orthopedic implants. The electronics assembly includes at least one sensor and a controller having at least two joint-specific modules. Each joint-specific module is respectively configured to collect kinematic data resulting from movement of a respective specific joint sensed by the at least one sensor. In another aspect, a universal payload includes an electronics assembly comprising at least one sensor and a housing enclosing the electronics assembly. The universal payload has a payload form factor that is configured to be at least partially inserted into a payload receptacle in each of a plurality of different orthopedic implants.

Joint implant system (22) for a roller joint (43) or a ball joint (7) with a first bony joint component, a joint head (2), and a second bony joint component, a joint socket (3), characterized in that the joint implant system (22) comprises an intermediate body (24) which is designed for bilaterally movable arrangement between the first bony joint component, the joint head (2), and the second bony joint component, the joint socket (3), wherein a joint head-side contact surface (30) and a joint socket-side contact surface (32) of the intermediate body (24) have the same radius of curvature (R) in certain areas. k , R p exhibit.

A joint replacement system for repairing an articular surface of a first bone of a joint includes an anchor portion and an implant portion. The anchor portion includes an anchor to be secured to the bone, and an anchor fixation head including a bone-facing surface (BFS) extending radially outward from the anchor and an implant facing surface (IFS) extending from a periphery of the BFS. The implant portion is formed from a material (e.g., CoCr) more dense than the material of the anchor portion (e.g., Ti) and includes a fixation cavity to receive at least a portion of the anchor fixation head (AFH), the fixation cavity includes an anchor facing surface (AFS) configured to form a frictional connection with the IFS, and a load bearing surface having a contour for articulating against a cooperating articulating surface of a second bone of the joint.