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:
Jul. 20, 2004
Filed:
Mar. 29, 2001
Applicant:
Inventor:
Arnold Keller, Hamburg, DE;
Assignee:
Link Spine Group, Inc., , DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/02 ; A61F 2/44 ;
U.S. Cl.
CPC ...
A61F 2/02 ; A61F 2/44 ;
Abstract
A plastic implant having a sliding core, such as an intervertebral endoprosthesis, is formed with a peripheral, preferably circumferential, channel that is configured to receive a radiographic contrast wire. The channel may be partially or fully closed to an outside portion of the sliding core and may include a restriction in the profile of the channel that acts to partially close the channel to the outside portion of the sliding core. The restriction may have a width that is less than the diameter of the radiographic contrast wire. The channel may also include an insertion opening adapted to accept the wire.