Stent with retractable anchors
AssigneeBoston Scientific Scimed, Inc.
InventorsDANIEL L. KRAUTKREMER, ALLISON M. PEARLMAN, KATHLEEN CORCORAN, JILL M. WHITE, KEVIN WALSH
Life of this patent
Estimating the term…
Abstract
A stent includes a tubular support structure extending from a distal end to a proximal end, the tubular support structure including an inner surface and an outer surface. A retractable anchor system is disposed relative to the tubular support structure and includes a frame member and a plurality of retractable anchors secured to the frame member. The plurality of retractable anchors are biased to a deployed configuration in which the plurality of retractable anchors extend radially outward from the outer surface of the tubular support structure but are radially inwardly compressible into a delivery configuration.
Claims20
A stent comprising:
- a tubular support structure extending from a distal end to a proximal end, the tubular support structure including an inner surface and an outer surface;
- and
- a retractable anchor system disposed relative to the tubular support structure, the retractable anchor system including a frame member and a plurality of retractable anchors secured to the frame member;
- wherein the plurality of retractable anchors are biased to a deployed configuration in which the plurality of retractable anchors extend radially outward from the outer surface of the tubular support structure but are radially inwardly compressible into a delivery configuration.
A stent comprising:
- a braided support structure extending from a distal end to a proximal end of the stent, the braided support structure including an inner surface and an outer surface;
- a polymeric covering disposed on the braided support structure;
- and
- a retractable anchor system including:
- a ring disposed at an end of the retractable anchor system;
- a plurality of frame members extending from the ring and through the braided support structure;
- and
- a plurality of retractable anchors secured to each of the plurality of frame members;
- wherein the plurality of retractable anchors are biased to a position in which the plurality of retractable anchors extend radially outward from the outer surface of the braided support structure.
A method of deploying a stent within a body lumen of a patient, the stent including a braided support structure and a retractable anchor system movable relative to the braided support structure, the retractable anchor system including a plurality of retractable anchors, the method comprising:
- advancing the stent to a desired position within the body lumen in a radially compressed configuration;
- and
- expanding the stent to a radially expanded configuration;
- wherein the plurality of retractable anchors of the retractable anchor system expand radially into an anchoring configuration in which the retractable anchors extend radially outward from the braided support member to engage a wall of the body lumen.
Dependencies are inferred from the claim text.