Artificial bone graft implant
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 19, 2003
Issued Date -
N/A
app pub date -
Nov 22, 2000
filing date -
Jun 7, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An implant for replacing the supporting function of an intervertebral space defined between adjacent vertebrae includes a prosthetic implant member dimensioned for insertion within a space provided by at least partial removal of the intervertebral disc. The implant member includes a first implant portion and a second implant portion. The first implant portion includes a microporous material formed to define a predetermined configuration and has a first relatively high average porosity to facilitate rapid bone ingrowth within the first implant portion. The second implant portion includes a microporous material formed to define a predetermined configuration and has a second relatively low average porosity to support and maintain the adjacent vertebrae in spaced relation during permanent fixation of the implant member within the adjacent vertebrae. The first implant portion is disposed in a peripheral area of the implant member and the second implant portion is disposed in a central area of the implant member such that the first implant portion substantially encapsulates the second implant portion.
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