Tubular Filter
AssigneeC.R. Bard, Inc.
InventorsAndrzej J. Chanduszko, Michael Adam Randall
Life of this patent
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Abstract
A method of preparing a filter for delivery into a body vessel. The filter includes a hub disposed along a longitudinal axis and a plurality of anchor members extending from the hub. Each anchor member includes either a cranial extension or a caudal extension at a distal end thereof. At least one anchor member distal end may be spaced from the hub at each of a first, second, and third distance along the longitudinal axis. The filter also includes a plurality of locator members extending from the hub, the locator members alternatingly interposed between the anchor members.
Claims21
A vascular blood filter comprising:
- a hub disposed along a longitudinal axis;
- a plurality of appendages extending from said hub;
- said appendages including a plurality of anchor members;
- wherein each said appendage has a distally disposed extension base;
- wherein each said extension base includes a penetration member and a limiter;
- some of said penetration members being cranial;
- and
- some of said penetration members being caudal.
13-18. (canceled)
A vascular blood filter comprising:
- a hub disposed along a longitudinal axis;
- a plurality of appendages extending from said hub;
- said appendages including a plurality of anchor members, each having proximal and distal end portions;
- wherein each said appendage has a cranial extension base and a caudal extension base;
- wherein said cranial extension base includes a cranial penetration member that prevents migration of said hub in a cranial direction and a limiter that limits the depth of penetration of said cranial penetration member;
- and
- wherein said caudal extension base includes a caudal penetration member that prevents migration of said hub in a caudal direction and a limiter that limits the depth of penetration of said caudal penetration member.
A vascular blood filter comprising:
- a hub disposed along a longitudinal axis;
- a plurality of anchor members extending from the hub;
- a plurality of locator members extending from the hub, each locator member disposed between two adjacent anchor members;
- wherein each anchor member includes a distally disposed extension base;
- and
- an extension that extends from the extension base and comprises a penetration member and a limiter.
Dependencies are inferred from the claim text.