The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 2011
Filed:
Jul. 19, 2006
Eric E. Palm, St. Louis Park, MN (US);
Jeffrey C. Felt, Excelsior, MN (US);
Jenny Zeroni, St. Louis Park, MN (US);
Albert Schafer, Elk River, MN (US);
Eric E. Palm, St. Louis Park, MN (US);
Jeffrey C. Felt, Excelsior, MN (US);
Jenny Zeroni, St. Louis Park, MN (US);
Albert Schafer, Elk River, MN (US);
Vertebral Technologies, Inc., Minnetonka, MN (US);
Abstract
A multi-composite disc prosthesis is adapted to be implanted within the annulus of an evacuated disc nucleus space in a human spine. The disc prosthesis has a generally solid unitary body with a size and a shape adapted to be positioned within the annulus of the evacuated disc nucleus space. The body has an outer portion comprised of a first biomaterial and an inner portion comprised of a second biomaterial. The second biomaterial has a compressive modulus that is harder than a compressive modulus of the first biomaterial and the first and second biomaterials are chemically or physically bonded to form a multi-composite material that forms the solid body.