Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1991-09-03
1994-03-01
Isabella, David
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
606 61, A61F 244
Patent
active
052903125
ABSTRACT:
A prosthetic vertebra has a first hollow parallelepiped-shaped component and a second component shaped identically to the first component and marginally smaller than the first component. The second component can accordingly be positioned partially within the first component and can be axially moved within the first component, so that the overall length of the prosthetic vertebra can be established by appropriately moving the second component within the first. A set screw is threadably engageable with the first component and can be tightened against the second component to hold the components axially stationary relative to each other, once the prosthetic vertebra has been positioned in the patient and its length adjusted as appropriate to fit the patient.
REFERENCES:
patent: 4599086 (1986-07-01), Doty
patent: 4834757 (1989-05-01), Brantigan
patent: 5062850 (1991-11-01), MacMillan et al.
patent: 5147402 (1992-09-01), Bohler et al.
Kojimoto Haruo
Yasui Natsuo
Alphatec
Brittingham Debra S.
Isabella David
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