摘要:
A cup impactor (1, 1′, 1″) is provided, adapted to assist a surgeon in controlling implantation of a cup prosthesis (9). The impactor has an impactor body (8), a drive train assembly (71), an impactor nose (38), and a clamping handle (5). The impactor body (8) has on its proximal end, an impaction plate (7) connected thereto, and an impactor handle (6) formed thereon for handling by the surgeon and, on the distal end, an impactor cup support portion (8a) having a receiver recess (8b) therein. A drive train assembly (71) has a prosthesis engaging interface (11) at a distal end thereof, and a proximal end on which a positioning knob (2) is formed. The assembly (71) received and rotatably mounted in the receiver recess (8b) of the body (8) so as to expose the prosthesis engaging surface (11). An impactor nose (38) mounts on the distal end of the impactor body (8), through which the prosthesis engaging interface (11) extends. A clamping handle (5) pulls distal portion of the drive train assembly (71) and therefore any cup prosthesis (9) attached to the engaging interface (11) against the impactor nose (38) so as not to strain the proximal end of the drive train assembly (71).
摘要:
An artificial joint comprising a first base element (40) and a second base element (50) that are pivotally connected to an intermediate body (30). A first protrusion (41) extends from the first base element (40) and is configured to be press-fitted into a screw device (60) that is anchored to a first bone member (6), and a second protrusion (51 ) extends from the second base element (50) and is configured to be press-fitted into a screw device (70) that is anchored to a second bone member (7). A related kit-of-parts (2) is also described.
摘要:
The invention relates to an intervertebral implant (1), in particular an artificial intervertebral disc. Said implant comprises a central axis (2), an upper part (10), designed to rest against the lower surface of a vertebral body lying directly above and a lower part (20), designed to rest against the covering surface of a vertebral body lying directly below. According to the invention: the upper part (10) comprises a ventral side face (11), a dorsal side face (12), two lateral side faces (13, 14), an upper apposition face (15) and a lower face (16); the lower part (20) comprises a ventral side face (21), a dorsal side face (22), two lateral side faces (23, 24), a lower apposition face (25) and an upper face (26); and the two parts (10, 20) can be displaced in relation to one another by means of a joint (30) that is situated between the two parts (10; 20), said joint (30) being a universal joint comprising two rotational axes (3; 4) running transversally to one another.
摘要:
An acetabular hip implant includes an acetabular shell component, a first insert secured to the acetabular shell component, a second insert secured to the first insert, and a femoral head configured to be secured to the second insert. The first insert is permitted to rotate relative to the acetabular shell about a first axis, the second insert is permitted to rotate relative to the first insert about a second axis, and the femoral head is permitted to rotate relative to the second insert about a third axis.
摘要:
The present application concerns a shoulder prosthesis assembly. The shoulder prosthesis assembly comprises a humeral stem including a first articulating coupling means, a base portion of a substantially disc shaped geometry including a second articulating coupling means. Said first articulating coupling means and said second articulating coupling means connect the stem to the base portion. The ratio between the circumference of the disc shaped base portion and the peripheral thickness of the disc shaped base portion is at least 18:1.
摘要:
An acetabular hip implant includes an acetabular shell component, a first insert secured to the acetabular shell component, a second insert secured to the first insert, and a femoral head configured to be secured to the second insert. The first insert is permitted to rotate relative to the acetabular shell about a first axis, the second insert is permitted to rotate relative to the first insert about a second axis, and the femoral head is permitted to rotate relative to the second insert about a third axis.
摘要:
The invention relates to intersomatic cages. The cage according to the invention comprises: a disk (10) having two parallel faces (11, 12) and a lateral wall (13); at least one blocking blade (31, 32), the width of said blocking blade, measured in a plane (34) perpendicular to the two faces (11, 12), being, at the most, equal to the distance separating said two faces, and the length of said blocking blade, measured in the same plane (34), being longer than said distance; and first means (40-1) for rotatably driving the blade (31, 32) in a first second plane (36, 37) creating a first angle β, δ with the planes (42, 44) extending through the two faces (11, 12), different from 90 degrees, in such a way that the blade (31, 32) can assume any position between two positions, one position wherein the first blade is completely contained within the space Esp defined between the two planes (42, 44), and the other position wherein at least one end of the blade emerges from the space Esp. The invention can be applied to cages that can be inserted between two vertebrae in order to replace an intervertebral disk.
摘要:
The invention relates to a prosthesis for facet joints (12) of the spinal column, with a bearing piece (23) and a guide rod (21). The bearing piece (23) comprises a pressure plate (24) for bearing on an articular surface (13, 14) of the vertebra (1) and, lying opposite, a bearing insert (27) which has an articular surface for cooperating with an articular surface (13, 14) of an adjacent vertebra (11). The guide rod (21) is secured on the bearing piece (23) by means of a pivot hinge. The bearing forces are thus always transmitted to the vertebra (1) via the pressure plate (24). In this way, the guide rod (21) can be made narrow, such that the slit (18) for receiving the guide rod on the vertebra (1) can also be made narrow. This permits implantation that is simple and reliable and that also saves bone substance.
摘要:
A hip prosthesis comprising a first fastening assembly (1, 2, 6, 12, 13) intended for being mounted in the hip bone (A) and a second fastening assembly (4, 5, 7, 14) intended for being mounted in the upper extremity of the femur (F), wherein the first (1, 2, 6, 12, 13) and the second (4, 5, 7, 14) fastening assemblies are interconnected by means of a pivotable connection (8, 108) wherein all parts (1, 2, 4, 5, 6, 7, 8) of the hip prosthesis are so small and/or slender that they can each be arranged in the intended end position thereof via a bore (9) in the femur (F), which bore (9) extends from the outside (Fo) of the femur (F) through the femoral neck (Fn) substantially in the direction of the imaginary longitudinal center line (LFn) of the femoral neck (Fn) to the femoral head (Fh).