Cryopad
AssigneeAtriCure, Inc.
InventorTamer IBRAHIM
Life of this patent
Estimating the term…
Abstract
Devices, systems, and methods for therapeutically treating tissue. The devices and methods are suitable for minimally invasive surgery or open surgical procedures. More particularly, methods and devices described herein permit treating large areas of tissue with a therapeutic device. In some variations, the method and devices allow for large area treatment without having to reposition the device. The methods and devices described herein discuss the treatment of cardiac tissue for purposes of illustration.
Claims14
A medical device for treating a surface area of tissue, the device comprising:
- a catheter body having a working end;
- a flexible body located at the working end of the catheter, the flexible body having a expanse shape having a first expanse surface opposite to a second expanse surface, wherein the first expanse surface is configured to transmit energy to the surface area of tissue, where the flexible body is configured to assume a rolled configuration;
- a first chamber within the flexible body and adjacent to the first expanse surface;
- a second chamber within the flexible body and adjacent to the second expanse surface, wherein the second chamber is fluidly isolated from the first chamber;
- a plurality of sensing elements adjacent to the first expanse surface and configured to detect electrical activity in the surface area of tissue;
- and
- wherein delivery of a fluid through the catheter and into the second chamber causes the flexible body to move from the rolled configuration to the planar configuration and also causes expansion of the second chamber to move the second expanse surface in a direction away from the first expanse surface such that adjacent tissues are further spaced from the surface area of tissue.
A method of ablating an epicardial atrial surface of tissue in a patient, the method comprising:
- advancing a flexible planar ablation device in a rolled configuration to a location adjacent to the atrial surface, the planar ablation device having a first expanse surface opposite to a second expanse surface, wherein the first expanse surface is configured to transmit energy to the epicardial atrial surface;
- inflating a second chamber located in the planar ablation device and adjacent to the second expanse surface such that the flexible planar ablation device unrolls from the rolled configuration and the second chamber expands away from the epicardial atrial surface to separate adjacent tissues from the epicardial atrial surface;
- applying energy to the epicardial atrial surface using the first expanse surface to create an area of ablation in the epicardial atrial surface;
- and
- sensing electrical activity in the epicardial atrial surface using at least one sensing electrode on the first expanse surface assess the area of ablation for at least one gap in ablation.
Dependencies are inferred from the claim text.