Stent deployment system
AssigneeBoston Scientific Scimed, Inc.
InventorsAMANDA LYNN SMITH, JOHN T. FAVREAU, JACQUELINE NICOLE MAGAHA, JENNIFER WHELEHAN
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Abstract
A delivery system for delivering a stent to a body lumen. The delivery system includes a tubular member having an expandable stent disposed about the outer surface of the inner tubular member. The stent is maintained in a radially compressed configuration with a removable sheath. The sheath can be released using a variety of techniques.
Claims20
A delivery system for delivering a stent to a body lumen, the system comprising:
- an outer tubular member defining a lumen and having a proximal end region and a distal end region;
- a cutting element coupled to an inner surface of the outer tubular member adjacent to the distal end region thereof, the cutting element extending radially inward from the inner surface;
- an inner tubular member defining a lumen and having a proximal end region and a distal end region, the inner tubular member slidably disposed within the lumen of the outer tubular member;
- an expandable stent disposed about the outer surface of the inner tubular member adjacent the distal end region of the inner tubular member;
- and
- a sheath releasably disposed over the expandable stent and configured to maintain the expandable stent in a radially collapsed configuration;
- wherein the cutting element is configured to cut the sheath upon proximal retraction of the outer tubular member while remaining radially spaced from the expandable stent.
A delivery system for delivering a stent to a body lumen, the system comprising:
- a tubular member defining a lumen and having a proximal end region and a distal end region;
- an expandable stent disposed about the outer surface of the inner tubular member adjacent the distal end region of the inner tubular member;
- a sheath releasably disposed over the expandable stent and configured to maintain the expandable stent in a radially collapsed configuration;
- and
- a release tab extending from a proximal end adjacent to a proximal end of the sheath to a distal end adjacent to a distal end of the sheath;
- wherein the release tab is configured to breakdown under an applied electrical stimulus to create a tear in the sheath and release a compressive force of the sheath on the expandable stent.
A delivery system for delivering a stent to a body lumen, the system comprising:
- a tubular member defining a lumen and having a proximal end region and a distal end region;
- an expandable stent disposed about the outer surface of the inner tubular member adjacent the distal end region of the inner tubular member;
- a sheath releasably disposed over the expandable stent and configured to maintain the expandable stent in a radially collapsed configuration;
- and
- a release tab extending from a proximal end adjacent to a proximal end of the sheath to a distal end adjacent to a distal end of the sheath;
- wherein the release tab is configured to breakdown under a chemical stimulus to create a tear in the sheath and release a compressive force of the sheath on the expandable stent.
Dependencies are inferred from the claim text.