Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
2007-02-27
2007-02-27
Robert, Eduardo C. (Department: 3733)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
Reexamination Certificate
active
10498491
ABSTRACT:
The implant includes a stem terminating in a head. The stem is adapted to be inserted in the metacarpus of the thumb and the head to be disposed in a space obtained particularly by removing at least a portion of the trapezium. The surface of the head is constituted by a base connected to the stem and adapted to rest on the proximal end of the metacarpus, a distal surface portion opposite the base and serving as a contact surface with the bone located facing the proximal end of the metacarpus, and a connecting portion connecting the base and the distal surface portion of the head. The distal surface portion of the head is inclined relative to a longitudinal axis of the stem by a predetermined angle, such that, when the stem is mounted straight in the metacarpus, the distal surface portion of the head can be located in varus.
REFERENCES:
patent: 3745590 (1973-07-01), Stubstad
patent: 3924276 (1975-12-01), Eaton
patent: 5702469 (1997-12-01), Whipple et al.
patent: 5728163 (1998-03-01), Maksene
patent: 297 21 522 (1998-02-01), None
patent: 199 25 529 (2000-12-01), None
patent: 2 680 967 (1993-03-01), None
Allieu et al., “Swanson Trapezial Implant in the Treatment of Peritrapezial Arthrosis—A study of eight cases”, Ann. Chir. Main, vol. 3, No. 2, 1984, pp. 113-123.
Allieu Yves
Hassler Michel
Pequignot Jean-Pierre
Real Cécile
Araj Michael J.
Bioprofile
Robert Eduardo C.
Young & Thompson
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