Metallic implant anchorable to bone tissue for replacing a broken or diseased bone
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United States of America Patent
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Oct 10, 1995
Issued Date -
N/A
app pub date -
Aug 17, 1992
filing date -
Mar 23, 1989
priority date (Note) -
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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.
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