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:
Dec. 15, 1992
Filed:
Oct. 09, 1991
John R Parsons, Perth Amboy, NJ (US);
Casey K Lee, Short Hills, NJ (US);
Noshir A Langrana, Robbinsville, NJ (US);
Alastair J Clemow, Princeton, NJ (US);
Elizabeth H Chen, Princeton, NJ (US);
University of Medicine & Dentistry of New Jersey, Newark, NJ (US);
Rutgers University, Piscataway, NJ (US);
Abstract
The construction and manufacturing technique for a functional biocompatible intervertebral disc spacer is described. This device is useful for a replacement for a degenerated disc in certain treatments of back pain and spinal disease. The disc spacer possesses mechanical properties skin to those of the normal disc and will preserve normal functions of the spinal motion segment. The device achieves the desired properties by varying the hardness of the elastomeric material in its nucleus and annulus.