Expandable device for treatment of a stricture in a body vessel
First Claim
1. An expandable device for treatment of a stenotic lesion in a body vessel, the device comprising:
- a tubular portion including a proximal end and a distal end extending from the proximal end, the tubular portion having a lumen formed therethrough between the proximal and distal ends; and
an expandable member formed helically about the tubular portion, the expandable member being configured to helically close defining a collapsed state for delivery of the device, the expandable member being configured to helically open defining an expanded state, in which the expandable member forms an outermost periphery of the expandable device, for treatment of the stenotic lesion in the body vessel, the expandable member having at least one member portion helically extending from the tubular portion at a predetermined angle at the outermost periphery, defining a proximally faced opening having a concave shape with the predetermined angle forming a greater opening angle than an opening angle adjacent the tubular member when the expandable member is in the expanded state, the predetermined angle being between about 40 and 70 degrees.
3 Assignments
0 Petitions
Accused Products
Abstract
An expandable and retrievable device for treatment of a stenotic lesion in a body vessel is disclosed. The device comprises a tubular portion including a proximal end and a distal end extending from the proximal end. The tubular portion has a lumen formed therethrough between the proximal and distal ends. The device further comprises an expandable member formed helically about the tubular portion. The expandable member is configured to helically close, defining a collapsed state for delivery of the device. The expandable member is configured to helically open, defining an expanded state for treatment of the stenotic lesion in the body vessel. The expandable member has at least one filter portion that helically extends from the tubular portion at a predetermined angle. This defines a proximally faced opening when the expandable member is in the expanded state.
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Citations
6 Claims
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1. An expandable device for treatment of a stenotic lesion in a body vessel, the device comprising:
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a tubular portion including a proximal end and a distal end extending from the proximal end, the tubular portion having a lumen formed therethrough between the proximal and distal ends; and an expandable member formed helically about the tubular portion, the expandable member being configured to helically close defining a collapsed state for delivery of the device, the expandable member being configured to helically open defining an expanded state, in which the expandable member forms an outermost periphery of the expandable device, for treatment of the stenotic lesion in the body vessel, the expandable member having at least one member portion helically extending from the tubular portion at a predetermined angle at the outermost periphery, defining a proximally faced opening having a concave shape with the predetermined angle forming a greater opening angle than an opening angle adjacent the tubular member when the expandable member is in the expanded state, the predetermined angle being between about 40 and 70 degrees. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification