Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
2005-03-08
2005-03-08
Pellegrino, Brian E (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
C623S017140, C623S017150
Reexamination Certificate
active
06863688
ABSTRACT:
An intervertebral spacer device having a pair of opposing plates for seating against opposing vertebral bone surfaces, separated by at least one spring mechanism. The preferred spring mechanism is at least one spirally slotted belleville washer having radially spaced concentric grooves. In a preferred embodiment there is a single such belleville washer which is modified to mount onto a ball-shaped head. The lower plate of this embodiment includes a post extending upwardly from the inner surface of the plate, the post including a ball-shaped head. The modified belleville washer can be rotatably mounted to the head such that the wider portion of the washer seats against the upper plate.
REFERENCES:
patent: 2193122 (1940-03-01), Crabbs
patent: 5034254 (1991-07-01), Cologna et al.
patent: 5458642 (1995-10-01), Beer et al.
patent: 5556431 (1996-09-01), Buttner-Janz
patent: 5562738 (1996-10-01), Boyd et al.
patent: 5674296 (1997-10-01), Bryan et al.
patent: 5676701 (1997-10-01), Yuan et al.
patent: 5676702 (1997-10-01), Ratron
patent: 5683465 (1997-11-01), Shinn et al.
patent: 5755796 (1998-05-01), Ibo et al.
patent: 5827328 (1998-10-01), Buttermann
patent: 5865846 (1999-02-01), Bryan et al.
patent: 5888226 (1999-03-01), Rogozinski
patent: 5895428 (1999-04-01), Berry
patent: 5899941 (1999-05-01), Nishijima
patent: 5989291 (1999-11-01), Ralph et al.
patent: 6001130 (1999-12-01), Bryan et al.
patent: 6019792 (2000-02-01), Cauthen
patent: 6039763 (2000-03-01), Shelokov
patent: 6063121 (2000-05-01), Xavier et al.
patent: 6113637 (2000-09-01), Gill et al.
patent: 6136031 (2000-10-01), Middleton
patent: 6146421 (2000-11-01), Gordon et al.
patent: 6156067 (2000-12-01), Bryan et al.
patent: 6179874 (2001-01-01), Cauthen
patent: 6228118 (2001-05-01), Gordon
Ralph James D.
Tatar Stephen
Lerner David Littenberg Krumholz & Mentlik LLP
Pellegrino Brian E
SpineCore, Inc.
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