Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
2006-01-03
2006-01-03
Robert, Eduardo C. (Department: 3732)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
C623S017120, C623S017140
Reexamination Certificate
active
06981989
ABSTRACT:
An improved spinal intervertebral prosthetic device that offers all degrees of motion afforded by the anatomic spinal intervertebral disc, and by virtue of the incorporation of a dashpot assembly mechanism within reversibly displaceable bellows, provides hydraulic load bearing capability as well as limiting the maximum pressure that can be exerted on the bellows assembly by limiting the compression stroke of the device. The dashpot assembly also increases resistance to lateral shear loading in excess of the bellows convolutions acting alone. The spinal intervertebral prosthetic device absorbs varying axial loads via hydraulic pressure transfer to the bellows convolutions which can flex in a spring-like fashion. Rotational coupling of the upper crown plate and center bearings plate permits normal twisting movements, and spinal flexural freedom is provided by the bellows that are interposed between the center bearings plate and the lower crown plate.
REFERENCES:
patent: 3867728 (1975-02-01), Stubstad et al.
patent: 3875595 (1975-04-01), Froning
patent: 4904260 (1990-02-01), Ray et al.
patent: 4932975 (1990-06-01), Main et al.
patent: 5002576 (1991-03-01), Fuhrmann et al.
patent: 5171278 (1992-12-01), Pisharodi
patent: 5171280 (1992-12-01), Baumgartner
patent: 5236460 (1993-08-01), Barber
patent: 5344459 (1994-09-01), Swartz
patent: 5458642 (1995-10-01), Beer et al.
patent: 5571189 (1996-11-01), Kuslich
patent: 5645597 (1997-07-01), Krapiva
patent: 5683465 (1997-11-01), Shinn et al.
patent: 5755807 (1998-05-01), Anstaett et al.
patent: 6063121 (2000-05-01), Xavier et al.
patent: 6066154 (2000-05-01), Reiley et al.
patent: 6113599 (2000-09-01), Landsberger
patent: 6375682 (2002-04-01), Fleischmann et al.
patent: 6395032 (2002-05-01), Gauchet
patent: 6482234 (2002-11-01), Weber et al.
patent: 6527806 (2003-03-01), Ralph et al.
patent: 6579320 (2003-06-01), Gauchet et al.
patent: 6582466 (2003-06-01), Gauchet
patent: 6733532 (2004-05-01), Gauchet et al.
patent: 2003/0045940 (2003-03-01), Eberlein et al.
patent: 2003/0135277 (2003-07-01), Bryan et al.
patent: 2004/0093082 (2004-05-01), Ferree
patent: 2005/0033437 (2005-02-01), Bao et al.
patent: 4213771 (1993-09-01), None
patent: 42271 (1981-12-01), None
patent: 305723 (1989-03-01), None
patent: 392076 (1990-10-01), None
patent: 610837 (1994-08-01), None
patent: 820740 (1998-01-01), None
patent: 1166725 (2002-01-01), None
patent: 2734148 (1996-12-01), None
patent: WO 9911203 (1999-03-01), None
patent: WO 9922675 (1999-05-01), None
patent: WO 9930651 (1999-06-01), None
Fleischmann Lewis W.
Galuardi Christopher
Robert Eduardo C.
X-Pantu-Flex DRD Limited Liability Company
LandOfFree
Rotatable and reversibly expandable spinal hydraulic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotatable and reversibly expandable spinal hydraulic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotatable and reversibly expandable spinal hydraulic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3545913