摘要:
The invention relates to a device (2) for fixing a cup (3) in a bone (21), said device comprising a tubular body (17) extending along a longitudinal axis (A) between a proximal end (18) for co-operating with the cup (3) or a coupling body (9), and a distal end (19) to be fixed in the bone (21), the tubular body (17) defining an inner peripheral surface (24) and an outer peripheral surface (25) provided with screw means. The screw means extend from the proximal end (18) to an intermediate region (27) of the outer peripheral surface (25) arranged at a distance from the proximal (18) and distal (19) ends, and the inner peripheral surface (24) defines a female assembly portion (28) extending from the proximal end (18) in order to co-operate with a male assembly portion of the cup (3) or the coupling body (9).
摘要:
A shoulder joint repair prosthesis (12, 14) comprises a support structure which comprises anchorage points (24) which are in the installed configuration positioned adjacent positions of the anatomical tendinous insertion points of the tendons related to the joint. A securing clamp (30) arrangement connects to the anchorage points with direct rigid connection devices (32), the securing clamp arrangement having a surface area larger than the direct connection devices, the securing clamp arrangement being arranged to clamp the tendons between the securing clamp arrangement and the underlying surface area and providing a fixed gap between clamp and underlying connecting areas to trap any attached bony fragments.
摘要:
A kit for assembly of a modular joint prosthesis (10) includes at least two shank/body elements (22/20) sized for insertion into the shank of the bone and at least two head members (48) sized to replace one bearing surface of the joint. Each shank/body element (22/20) has a collar (58) that has a shallow width and a circularplan view and that is formed to overhang a resected level of the bone. The collar (58) has a male taper on its side wall (64). Each head member (48) has a first geometric axis (52) therethrough and defines a part spherical cavity (49) with a skirt (66) extending about the cavity (49). The skirt (66) provides a female taper for receiving and providing a mechanical connection with the male taper on the side wall (64) of each collar (58). A second axis extends (55) through the skirt (66). The first axis (52) and second axis (55) may be coincident or offset from one another.
摘要:
A modular prosthesis, such as a shoulder prosthesis, enables the selection of one of multiple alternate offset locations of a head member, such as a humeral head member, on a stem member, such as a humeral head member, together with the selection of any rotational orientation of the head member within a full 360° range of rotational orientation relative to the stem member, so as to locate and orient the head member secured on the stem member for optimum replication of the natural joint replaced by the prosthesis.
摘要:
The present invention relates to a joint prosthesis system (50) that comprises a prosthesis rod (40), a ball joint (30), a cup-like adapter (20) which can be inserted between the rod and the ball joint and which comprises an opening (21) at the bottom (22), as well as a rod-shaped instrument for detaching the adapter from the neck of the prosthesis rod or from the reception cap of the ball joint. This instrument (1) includes a rod that comprises two parts (3, 5) and which is fitted with a first and a second means (9, 12) at its summit so that, during the relative displacement of the rod members, a tensile-strength or axial-compression component can be generated for gripping the inner or outer side (22.1, 22.2) of the bottom of the adapter and for detaching said adapter (20).
摘要:
A shoulder prosthesis (10) including a fracture stem has a body having an exterior surface, a shank (50) attached to the body (40) and a head (30). The body (40) includes a medial fin (42), an anterior fin (43) and a posterior fin (44). The medial fin (42) includes a suture hole (42a). The anterior (43) and posterior (44) fins each include a plurality of suture holes. The prosthesis further includes a lateral suture hole (45a) intersecting the exterior surface of the body (40). The lateral suture hole (45a) may be formed in a projection (45) on the lateral side of the prosthesis (10). In an alternative embodiment, a trail prosthesis includes indicia for noting the proper placement of the stem. The prosthesis includes corresponding indicia for replicating the placement of the trial stem.