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US 6,273,850 B1Granted
Device for positioning a radiation source at a stenosis treatment site
AssigneeMedtronic AVE, Inc.
InventorsRichard A. Gambale, James Stewart Hunter, Nareak Douk
Life of this patent
Estimating the term…
Abstract
An apparatus is described for irradiating a stenosed region of an artery by use of a sliding or floating radiation source inserted into or onto a catheter or onto a guide wire within a catheter, delivered to the treatment site by a mechanical or hydraulic fluid and housed at the site for the irradiation procedure.
Claims18
An irradiation device for providing radiation treatment to a stenosed region of an artery, comprising:
- a flexible elongated tube having a proximal end portion, a distal end portion, and a lumen extending longitudinally therebetween, said distal end portion being sufficiently flexible to be guided through the vascular system;
- a radiation source free of attachment to said tube and being movable within said lumen;
- and
- an elongated flexible member wherein said elongated flexible member is capable of pushing said radiation source within said lumen
- wherein said radiation source is not integrated with said elongated flexible member.
2 more elements
An irradiation device for providing radiation treatment to a stenosed region of an artery, comprising:
- a flexible elongated tube having an inner surface, a proximal end portion, a distal end portion, and a lumen extending longitudinally therebetween, said distal end portion being insertable into a body pathway;
- a flexible elongated support having an outer surface and a distal end portion and said support being insertable into said tube so that said inner surface of said tube and said outer surface of said support form concentric rings;
- a radiation source free of permanent attachment to said tube or said support and being movable on said support;
- and
- an elongated flexible member for applying a force to said radiation source for moving said radiation source on said support;
- wherein said radiation source is not integrated with said elongated flexible member.
3 more elements
Dependencies are inferred from the claim text.