Self expanding vascular endoprosthesis for aneurysms
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United States of America Patent
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-
Apr 11, 1995
Grant Date -
N/A
app pub date -
Feb 24, 1993
filing date -
Jul 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self expanding vascular endoprosthesis for aneurysms comprising a sheet of a resiliently flexible biocompatible material, such as polypropylene which sheet has been rolled upon itself about one of its longitudinal edges. The tightly rolled endoprosthesis is introduced in the end of the catheter through a contiguous artery into the artery having the aneurysm. After ejection from the catheter at a suitable point in the artery the endoprosthesis expands to form a bridge isolating the aneurysm from the arterial blood flow. The endoprosthesis stimulates cellular proliferation in the adjacent vascular tissue which assists in forming a seal between the endoprosthesis and the vascular tissue. The resultant endothelial growth also assists in maintaining the endoprosthesis in position in the artery.
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