Intervertebral disc replacement prosthesis

Overview

Information

Number
6579321
Application
09/572057
Filing date
05/17/2000
Issue date
06/17/2003
Inventor(s)
Jeffrey D. Gordon, John M. Dawson
US Classification
623/17.11; 623/17.16
View at USPTO

Citations

NA (2)
Howmedica Osteonics (1)
Gordon, Maya, Roberts and Thomas, Number 1, (1)
SYNTHES (1)

Abstract

Abstract

An implantable intervertebral disc prosthesis that comprises a disc member having an upper surface, a lower surface, and a perimeter surface. The disc includes an axis at least one slit defined in the perimeter surface; the slit being of sufficient depth and thickness to provide flexure. The slit terminates in a perimeter opening larger than the slit thickness. The perimeter opening (i.e., hole) acts as a pivot point and relieves stress. The disc prosthesis optionally comprises a cavity with an upper seat defined on the lower surface, a lower disc having an upper and lower surface and a lower seat defined on the upper surface, and a support ball. The support ball engages the seat on the upper disc and the seat on the lower disc.

Assignees with Similar Patents

DePuy Spine (9)
Howmedica Osteonics (6)
Vanderbilt University (5)
Zimmer (5)
magellan spine technologies (5)

Referenced by

HOWMEDICA OTEONICS CORP. (25)
Synergy Disc Replacement (12)
Medtronic (12)
Warsaw Orthopedic (11)
Pioneer Surgical Technology (10)
K2M (9)
NA (5)
biedermann technology (5)
Theken Spine, (5)
Aesculap & Co. (4)
Spinecore (4)
Zimmer (3)
DePuy Spine (3)
Aesculap Implant Systems, (3)
Joint Synergy, (3)
Nuvasive (2)
Linares Medical Devices, (2)
cardo medical (2)
Aeolin, (2)
simplify medical pty (2)
Vanderbilt University (2)
depuy synthes products (2)
MEDTRONIC EUROPE SARL (1)
Ulrich (1)
JOINT SYNERGY, , A FLORIDA (1)
linares miguel a (1)
stryker european operations (1)
Spinevision (1)
POINTILLART, VINCENT, DR. (1)
Choice Spine, LP (1)
University of Florida (1)
ASSAKER, RICHARD, DR. (1)

Tech Analysis

Class Subclass Type Reference Factor Citation Factor Strength Grant time Early grant (%)
623 17.11 Emerging Novel Seminal High Average 53.7
623 17.16 Emerging Novel Seminal High Average 51.6