Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1997-01-29
1998-06-02
Buiz, Michael Powell
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604104, 604280, 606199, 606198, 623 1, 128656, A61M 2900
Patent
active
057591741
ABSTRACT:
An expandable external radiopaque marker band is situated external to the balloon of a balloon angioplasty catheter typically at the balloon's longitudinal center. When the balloon is inflated to dilate an arterial stenosis, the external radiopaque marker band is moved radially outward by the balloon thereby forcing the external radiopaque marker band into the arterial wall. When the balloon is then deflated, the external radiopaque marker band remains in place against the wall of the dilated stenosis. The balloon angioplasty catheter can then be removed from the artery while the expanded external radiopaque marker band remains in place to indicate (typically) the center position of the dilated stenosis. The external radiopaque marker band is typically made from a dense, radiopaque metal such as tantalum, gold, platinum or an alloy of those dense metals.
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Fischell David R.
Fischell Robert E.
Fischell Tim A.
Buiz Michael Powell
Cathco, Inc.
Smith Chalin
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