Energy delivery devices and methods
First Claim
Patent Images
1. A medical device, comprising:
- a catheter extending from a proximal end toward a distal end, the catheter including an inflow lumen and an outflow lumen separate from the inflow lumen;
a balloon at the distal end of the catheter, the balloon being movable between a collapsed configuration and an expanded configuration; and
one or more electrodes disposed on an outer surface of the balloon, the one or more electrodes being configured to contact tissues defining a body lumen when the balloon is in the expanded configuration, the one or more electrodes being configured to deliver radiofrequency energy to the tissues defining the body lumen, wherein the inflow lumen is configured to deliver a fluid to the balloon, and the outflow lumen is configured to simultaneously convey the fluid from the balloon, wherein;
along a given circumferential path that extends around an entirety of the balloon, each of the one or more electrodes has a circumferential length extending circumferentially along the circumferential path; and
the sum of all of the circumferential lengths of the one or more electrodes covers only a minority of the circumference of the balloon when the balloon is in a maximally-expanded configuration.
0 Assignments
0 Petitions
Accused Products
Abstract
This relates to methods and devices for achieving contact between the wall of a cavity or passageway and a medical device when used in tortuous anatomy.
-
Citations
6 Claims
-
1. A medical device, comprising:
-
a catheter extending from a proximal end toward a distal end, the catheter including an inflow lumen and an outflow lumen separate from the inflow lumen; a balloon at the distal end of the catheter, the balloon being movable between a collapsed configuration and an expanded configuration; and one or more electrodes disposed on an outer surface of the balloon, the one or more electrodes being configured to contact tissues defining a body lumen when the balloon is in the expanded configuration, the one or more electrodes being configured to deliver radiofrequency energy to the tissues defining the body lumen, wherein the inflow lumen is configured to deliver a fluid to the balloon, and the outflow lumen is configured to simultaneously convey the fluid from the balloon, wherein; along a given circumferential path that extends around an entirety of the balloon, each of the one or more electrodes has a circumferential length extending circumferentially along the circumferential path; and the sum of all of the circumferential lengths of the one or more electrodes covers only a minority of the circumference of the balloon when the balloon is in a maximally-expanded configuration. - View Dependent Claims (2, 3)
-
-
4. A medical device, comprising:
-
a catheter extending from a proximal end toward a distal end, the catheter including an inflow lumen and an outflow lumen separate from the inflow lumen; an expandable member at the distal end of the catheter, the expandable member being movable between a collapsed configuration and an expanded configuration; and one or more energy delivery elements disposed on an outer surface of the expandable member, the one or more energy delivery elements being configured to contact tissues defining a body lumen when the expandable member is in the expanded configuration, wherein the inflow lumen is configured to deliver a fluid to the expandable member, and the outflow lumen is configured to simultaneously convey the fluid from the expandable member, wherein; along a given circumferential path that extends around an entirety of the expandable member, each of the one or more energy delivery elements has a circumferential length extending circumferentially along the circumferential path; and the sum of all of the circumferential lengths of the one or more energy delivery elements covers only a minority of the circumference of the expandable member when the expandable member is in a maximally-expanded configuration. - View Dependent Claims (5, 6)
-
Specification