Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1993-09-08
1995-10-17
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
606 61, 403 43, A61F 244
Patent
active
054586410
ABSTRACT:
The vertebral body prosthesis includes cephalic and caudal components with a separating setscrew therebetween. The cephalic component includes a generally horizontal member having an upper porous, water-permeable surface complementary shaped to the underside of the adjacent vertebral body, a securement element upstanding along one side for receiving screws to secure the cephalic component to the upper vertebral body and a depending guide element. The lower caudal component includes a generally horizontally disposed member having a porous, water-permeable undersurface complementary shaped to the upper surface of the lower adjacent vertebral body, a depending securement element along one side for receiving screws to secure the caudal component to the lower vertebral body and an upstanding guide element for engaging the depending guide element of the cephalic component to prevent rotation of the components. A separating setscrew is disposed between the members of the components and is adjustable to adjustably space the components relative to one another whereby a vertebral body prosthesis is formed.
REFERENCES:
patent: 4289123 (1981-09-01), Dunn
patent: 4401112 (1983-08-01), Rezaian
patent: 4445513 (1984-05-01), Ulrich et al.
patent: 4553273 (1985-11-01), Wu
patent: 4611582 (1986-09-01), Duff
patent: 4657550 (1987-04-01), Daher
patent: 5201734 (1993-04-01), Cozad et al.
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