Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
2007-02-13
2007-02-13
Snow, Bruce (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
Reexamination Certificate
active
10769957
ABSTRACT:
The present invention provides a prosthesis for implantation at the proximal articular surface of a proximal phalange, of a human great toe. The prosthesis comprises a base portion having a generally concave bearing surface shaped to articulate with the distal articular surface of a metatarsal bone, and a flat surface opposite the bearing surface for emplacement against a resected surface of the proximal phalange of the great toe of the human subject. A stem extends distally from the flat surface of the base portion, for implantation in the intramedulary canal of a proximal phalange of the great toe of the human subject. The stem has a generally frustoconical shape, with a substantially oval wide end at the flat surface of the base portion, tapering to a substantially circular end. The generally frustoconically shaped stem has a longitudinal axis that is inclined at an anatomical angle, of about 94° to the base portion, to align with the intramedulary canal of a proximal phalanx of the great toe of the human subject.
REFERENCES:
patent: 5314486 (1994-05-01), Zang et al.
patent: 5326366 (1994-07-01), Pascarella et al.
patent: 5702469 (1997-12-01), Whipple et al.
patent: 5725585 (1998-03-01), Zobel
patent: 5782927 (1998-07-01), Klawitter et al.
Saunders Gerald Anthony Briden
Sorbie Charles
Shughart Thomson & Kilroy PC
Snow Bruce
Stitt Richard P.
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