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. 10, 1995
Filed:
Aug. 17, 1992
Applicant:
Inventors:
Samuel G Steinemann, St. Sulpice, CH;
Lutz Claes, Ulm, DE;
Assignee:
Institut Straumann AG, Waldenburg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 16 ; 606 76 ;
Abstract
The prevailing opinion, supported by observations, has been in the art, that any implant of titanium or of another similar material is to have a contact surface roughness of more than 20 .mu.m to yield a good bond between bone and implant. The present invention is based upon the recognition, that the bond between bone and implant may be substantially improved by providing the contact surface of the implant with a micro-roughness of 2 .mu.m or less. According to the method of the invention such micro-roughness can be readily produced by subjecting the contact surface to pickling in a reducing acid.