Distal protection device
Assigneeev3 Inc.
InventorsJohn C. Oslund, Chad J. Volk
Life of this patent
Estimating the term…
Abstract
A distal protection device provided with a filter basket having a self-expanding radial loop designed to position the filter basket within human vasculature and to hold the filter basket open during deployment.
Claims33
A distal protection device disposable within a vessel of a body, comprising:
- a filter basket positionable at a desired axial location within the vessel, said filter basket having a closed distal end and an open proximal end;
- a guidewire upon which said filter basket is mounted;
- and
- a self-expanding arcuate member that, when expanded, creates a radial force against a vessel wall to control the lateral position of the filter at a desired location in the blood vessel.
Apparatus to facilitate proper positioning of a medical device within a generally tubular vessel of the body along a guidewire fed into the vessel, comprising:
- an element maintaining the medical device deployed laterally on a defined side of the guidewire;
- and
- a collapsible, quasi-rigid spacer carried by the guidewire proximate a desired axial end of the medical device, and maintained, when expanded, deployed laterally on the defined side of the guidewire, said spacer having a dimension on the defined side of the guidewire sufficient to engage an inner surface of the vessel at a circumferential location and urge the guidewire against the inner surface of the vessel at a generally diametrically opposite location.
Apparatus to fiacilitate proper positioning of a medical device within a generally tubular vessel of the body along a guidewire fed into the vessel, comprising:
- an element mounting the medical device to the guidewire at a defined axial position along the guidewire;
- and
- a collapsible, quasi-rigid spacer carried by the element, wherein said device is generally axially aligned with said spacer, said spacer having a dimension on one side of the guidewire sufficient so that it engages an inner surface of the vessel at a circumferential location thereon and urges the guidewire against the inner surface of the vessel at a generally diametrically opposite location.
A distal protection device disposable within a vessel of a body, comprising:
- a filter basket positionable at a desired axial location within the vessel, said filter basket having a closed distal end and an open proximal end;
- a guidewire upon which said filter basket is mounted;
- and
- a generally radially self-expanding quasi-rigid member associated with said filter basket in proximity to the proximal end thereof, and wherein the filter basket and self-expanding member are each mounted on the guidewire and generally axially aligned with each other, said self-expanding member, in its expanded state, having a dimension on one side of the guidewire sufficient so that it engages an inner surface of the vessel at a circumferential location thereon and urges the guidewire toward the inner surface of the vessel at a generally diametrically opposite location.
A distal protection device disposable within a vessel of a body, comprising:
- a filter basket positionable at a desired axial location within the vessel, said filter basket having a closed distal end and an open proximal end;
- a guidewire upon which said filter basket is mounted, said guidewire extending axially along said filter basket proximate a location on a periphery of a mouth defined by said open proximal end;
- and
- a self-expanding arcuate member that, when expanded, creates a radial force against a vessel wall to control the lateral position of the guidewire at a desired location in the blood vessel.
Dependencies are inferred from the claim text.