Devices and methods for delivering energy to body lumens
First Claim
1. A medical device for delivering energy to a body lumen, the device comprising:
- an elongate member having a proximal end, a distal end, and a lumen extending therebetween; and
a basket assembly disposed at or adjacent the distal end and configured to transition between a collapsed state and an expanded state, wherein the basket assembly includes a plurality of expandable legs, wherein a first expandable leg of the plurality of expandable legs includes a first region disposed at or adjacent a proximal portion of the first expandable leg, a second region disposed distally of the first region, an active region disposed distally of the second region, a third region disposed distally of the active region, and a fourth region disposed distally of the third 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 second region extends distally and radially outward from the first region,the active region extends distally from (i) the second region in a radially inward curve toward a longitudinal axis of the medical device and toward a radially innermost point, and (ii) the radially innermost point in a radially outward curve toward the third region, andthe third region extends distally from the active region and radially inward toward the fourth region;
wherein the active region is configured to contact and deliver energy to the body lumen when the basket assembly is in the expanded state, andwhen the basket assembly is in the expanded state, distal ends of the plurality of expandable legs converge toward one another.
1 Assignment
0 Petitions
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.
-
Citations
19 Claims
-
1. A medical device for delivering energy to a body lumen, the device comprising:
-
an elongate member having a proximal end, a distal end, and a lumen extending therebetween; and a basket assembly disposed at or adjacent the distal end and configured to transition between a collapsed state and an expanded state, wherein the basket assembly includes a plurality of expandable legs, wherein a first expandable leg of the plurality of expandable legs includes a first region disposed at or adjacent a proximal portion of the first expandable leg, a second region disposed distally of the first region, an active region disposed distally of the second region, a third region disposed distally of the active region, and a fourth region disposed distally of the third 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 second region extends distally and radially outward from the first region, the active region extends distally from (i) the second region in a radially inward curve toward a longitudinal axis of the medical device and toward a radially innermost point, and (ii) the radially innermost point in a radially outward curve toward the third region, and the third region extends distally from the active region and radially inward toward the fourth region; wherein the active region is configured to contact and deliver energy to the body lumen 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, 7, 8, 13, 14)
-
-
9. A medical device for delivering energy to a body lumen, the device comprising:
-
a flexible elongate member comprising a proximal portion and a distal portion; and an energy delivery device disposed at or adjacent the distal portion of the elongate member, the energy delivery device comprising at a plurality of electrodes, the energy delivery device being configured to move between an expanded state and a collapsed state; wherein at least one of the plurality of electrodes comprises a proximal adjoining region, an active region disposed distally of the proximal adjoining region, and a distal adjoining region disposed distally of the active region, wherein the active region is configured to contact and deliver energy to the body lumen when the energy delivery device is in the expanded state; and wherein, when the energy delivery device is in the collapsed state and while the energy delivery device is unconstrained by an outer sheath, at least a portion of the active region of the at least one electrode is pre-shaped such that it bows radially inward toward a longitudinal axis of the energy delivery device from both the proximal adjoining region and the distal adjoining region, such that at least a portion of the active region is closer to the longitudinal axis than at least a portion of the proximal adjoining region and at least a portion of the distal adjoining region, wherein, when the energy delivery device is in the expanded state, distal ends of the plurality of electrodes converge toward one another. - View Dependent Claims (10, 11, 12, 15, 16, 17, 18, 19)
-
Specification