Retrievable drug delivery stent

Details Retrievable drug delivery stent Retrievable drug delivery stent

1996-02-29

1999-03-16

Stright, Jr., Ronald

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604104, 606108, 606194, A61M 2900

Patent

active

058823352

ABSTRACT:
The drug delivery stent assembly includes a hollow tubular wire stent which extends in a path defining a generally cylindrical envelope and which has side walls facing outwardly of the cylindrical envelope with holes therein for delivery of liquid to a site in a vessel where the stent is placed. The method for delivering a liquid solution to the interior wall surface of a vessel using the hollow tubular wire stent comprises: placing the stent on a balloon of a balloon on a wire guidewire or on a balloon catheter; inserting the stent on the balloon assembly at a desired site in a vessel; causing the balloon to expand the stent to a larger cylindrical shape; supplying liquid with a liquid supply source to the stent prior to or after placement of the stent so that liquid can be delivered from the outer holes in the stent to the site of placement of the stent in a vessel; disengaging the liquid supply source from the stent prior to or after placement of the stent in a vessel; and allowing the liquid solution to leak from the stent through the outwardly facing holes in the stent.

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