Devices and methods for delivering energy to body lumens
First Claim
1. A medical device, comprising:
- a basket assembly configured to transition between a collapsed state and an expanded state, a central longitudinal axis extending through a radial center of the basket assembly, wherein the basket assembly includes a plurality of expandable legs, and a first expandable leg of the plurality of expandable legs includes an active region, wherein;
the first expandable leg is pre-shaped such that in the collapsed state and while the basket assembly is unconstrained by an outer sheath, the active region is convex when viewed from the central longitudinal axis;
the active region is configured to contact and deliver energy to tissue when the basket assembly is in the expanded state; and
when the basket assembly is in the expanded state, distal ends of the plurality of expandable legs converge toward one another.
1 Assignment
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Accused Products
Abstract
A medical device is disclosed for delivering energy to a body lumen. The device includes an elongate member including a proximal portion and a distal portion adapted for insertion into a body lumen; and an energy delivery device disposed adjacent the distal portion of the elongate member, the energy delivery device including at least one elongate electrode arm, wherein the elongate electrode arm is configured to transition between a first configuration and a second configuration different than the first configuration. The at least one elongate electrode arm includes an active region configured to contact and deliver energy to the body lumen. When the elongate electrode arm is in the first configuration, at least a portion of the active region of the elongate electrode arm extends radially inward toward a longitudinal axis of the energy delivery device.
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Citations
17 Claims
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1. A medical device, comprising:
a basket assembly configured to transition between a collapsed state and an expanded state, a central longitudinal axis extending through a radial center of the basket assembly, wherein the basket assembly includes a plurality of expandable legs, and a first expandable leg of the plurality of expandable legs includes an active region, wherein; the first expandable leg is pre-shaped such that in the collapsed state and while the basket assembly is unconstrained by an outer sheath, the active region is convex when viewed from the central longitudinal axis; the active region is configured to contact and deliver energy to tissue when the basket assembly is in the expanded state; and when the basket assembly is in the expanded state, distal ends of the plurality of expandable legs converge toward one another. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15)
- 7. The medical device of 5, further including a third region disposed proximal to the first region, wherein the third region is substantially parallel to the central longitudinal axis in both the collapsed and expanded states.
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16. A medical device, comprising:
a basket assembly configured to transition between a collapsed state and an expanded state, a central longitudinal axis extending through a radial center of the basket assembly, wherein the basket assembly includes a plurality of expandable legs, and a first expandable leg of the plurality of expandable legs includes an active region, wherein; the first expandable leg is pre-shaped such that in the collapsed state and while the basket assembly is unconstrained by an outer sheath, the active region is curved; the active region is substantially flat when the basket assembly is in the expanded state; and the active region is concave when viewed from a perspective exterior to the medical device, while the basket is in the collapsed state and while the basket assembly is unconstrained by an outer sheath. - View Dependent Claims (17)
Specification