Abstract:
A prosthesis assembly for implantation in a skeletal site; the assembly comprising: a first component (8) for fixation in a bone cavity (9), a second component (7) capable of direct or indirect engagement with the first component; at least one adaptor which engages the first and second components thereby allowing adjustment of the second component from a first disposition of the second component relative to a predetermined reference.
Abstract:
Prosthesis (1) for a shoulder joint comprising a humeral component (10) equipped with a stem (2), a head component (30) and connection or articulation means (20) of the humeral component (10) with the head component (30), wherein the prosthesis according to the invention can be used both as a conventional prosthesis and as a reverse-type prosthesis.
Abstract:
In one embodiment of the present invention a prosthesis including a mechanism for attaching a first component to a second component is provided. In one example (which example is intended to be illustrative and not restrictive), the first component may be a femoral head component and the second component may be a femoral stem component. In another example (which example is intended to be illustrative and not restrictive), the femoral head component may comprise a ceramic material and the femoral stem component may comprise a metallic material (e.g., any desired orthopedic alloy, such as Cobalt Chromium).
Abstract:
The invention relates to an attachment member (2) and a connecting member (16) for a carpometacarpal thumb joint prosthesis (1) as well as to said thumb joint prosthesis. The attachment member (2) comprises a screw-like part (4) for attachment by screwing into the second metacarpal bone and a locking device (8) for locking the screw-like part to the connecting member (16). The connecting member comprises an elongated, arcuate element (16) which at one end portion (16a) thereof is configured with a hole (14) for connection to the attachment member (2) for the second metacarpal bone and which at the opposite end portion (16b) thereof is configured with a hole (15) for connection to an attachment member (3) for the first metacarpal bone. The joint prosthesis (1) comprises said attachment member (2) for the second metacarpal bone, an attachment member (3) with a screw-like part (5) for attachment by screwing into the first metacarpal bone and with an articulating ball element (6) as well as a corresponding articulating socket element (7), and said connecting member (16).
Abstract:
Expandable spinal implants (10) and drivers (20) connected by a bendable joint (30) are disclosed. The flexible connector (30) allows the implant (10) and driver (20) to move to different angular orientations with respect to each other, and to apply rotational force or torque from the driver (20) to the implant (10) and its expansion mechanism. During insertion of an implant (10) into the desired position, the driver (20) may be oriented in the same or different direction than the long axis of the implant (10). After the spinal implant (10) is placed in the desired position, the driver (20) is used to expand the implant in selected dimensions.
Abstract:
A plug system (10', 10, 10") for preventing material from extruding beyond a desired location in a bone tunnel (42) includes a plug member (20', 20, 22") that has an insertion axis (2, 4, 206') extending from a first end (202', 202, 202") and a plurality of interleaving arms (205', 205, 205") disposed about the insertion axis. The arms (205', 205, 205") are affixed at a second end (204', 204, 204") and are flarable at the first end (202', 202, 202") between an insertion position wherein the arms (205', 205, 205") are relatively close packed and a position wherein the arms (205', 205, 205") are flared. A portion of each arm (205', 205, 205") remains in overlapping relation to an adjacent arm (205', 205, 205"). The system (10', 10, 10") further includes an expansion member (32, 30, 31) that has an insertion portion (321, 301, 311) adapted to separate the arms (205', 205, 205") upon progressive entry along the insertion axis (2, 4, 206') from the first end m(202'. 202. 202"). In use the plug (20', 20, 20") can be inserted either first end (202', 202, 202") first, with the expansion member (32, 30, 31) drawn into the plug (20', 20, 20") by a manipulator (33, 50), or second end (204', 204, 204") first, with the expansion member (32, 30, 31) driven along the insertion axis (2, 4, 206').
Abstract:
An expandable interbody fusion device in one embodiment includes a cylindrical body (10) defining a hollow interior (17) for receiving bone graft or bone substitute material. The body (10) is divided into a number of branches (24, 26, 40 and 41) connected to one another at a fixed end (20) and separated at an expandable end (18). The expandable cage may be inserted in its substantially cylindrical form and may be expanded by movement of an expansion member (50) to establish lordosis of the spine. The present invention provides an expansion member (50) that interacts with the interior surfaces of the device to maintain the cage in the expanded condition and provide a large internal chamber (17) for receiving bone in-growth material. Methods for insertion of the fusion device are also disclosed.
Abstract:
A stemless humeral shoulder assembly having a base member and an anchor advanceable into the base member. The base member can include a distal end that can be embedded in bone and a proximal end that can be disposed at a bone surface. The base member can also have a plurality of spaced apart arms projecting from the proximal end to the distal end. The anchor can project circumferentially into the arms and into a space between the arms. When the anchor is advanced into the base member, the anchor can be exposed between the arms. A recess can project distally from a proximal end of the anchor to within the base member. The recess can receive a mounting member of an anatomical or reverse joint interface.
Abstract:
An expandable interbody device for placement between adjacent vertebrae having an upper structure, a lower structure and a screw mechanism, wherein actuation of the screw mechanism moves the upper and lower structures between a collapsed configuration and an expanded configuration. A deployment tool couples to the expandable interbody device for positioning the device between adjacent vertebrae, actuating the screw mechanism and delivering a material to a chamber of the expandable interbody device.