CATHETER WITH SHEET ARRAY OF ELECTRODES

• US 20120172697A1
• Filed: 12/30/2010
• Published: 07/05/2012
• Est. Priority Date: 12/30/2010
• Status: Active Grant

• Current Assignee: Biosense Webster Incorporated (Johnson & Johnson)
• Original Assignee: Biosense Webster Incorporated (Johnson & Johnson)
• Inventors: Urman, Roy, Mizrahi, Liron Shmuel, Krupnik, Ronen
• Granted Patent: US 8,391,947 B2
• Time in Patent Office: Days
• US Class Current: 600/374
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/1107 Measuring contraction of parts of the body, e.g. organ, muscle apparatus for measuring work or force in general G01L
• CPC Class Codes: A61B 5/287 Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
• CPC Class Codes: A61B 5/6858 with a distal basket, e.g. expandable basket
• CPC Class Codes: A61B 5/6859 with multiple distal splines

Abstract

A medical device has a flexible elongated body, a handle connected to the elongated body, at least one spine connected to the elongated body, and a flexible sheet attached to the at least one spine. The flexible sheet has a plurality of electrodes thereon, wherein the flexible sheet and the plurality of electrodes define a mapping assembly for mapping electrical information in tissue, and wherein the at least one spine and the flexible sheet is movable from a collapsed configuration to a deployed configuration.

Claims

1. A medical device comprising:

a flexible elongated body;

a handle connected to the elongated body;

at least one spine connected to the elongated body; and

a flexible sheet attached to the at least one spine, the flexible sheet having a plurality of electrodes thereon, the flexible sheet and the plurality of electrodes defining a mapping assembly for mapping electrical information in tissue, wherein the at least one spine and the flexible sheet being movable from a collapsed configuration to a deployed configuration.

2. The medical device according to claim 1, further comprising a location sensor on the at least one spine.

3. The medical device according to claim 2, wherein the plurality of electrodes are an array of electrodes on the flexible sheet.

4. The medical device according to claim 3, wherein the location sensor provides six-dimensional location information.

5. The medical device according to claim 4, wherein the mapping assembly comprises a photoresist.

6. The medical device according to claim 5, wherein the photoresist comprises SU-8 material.

7. The medical device according to claim 4, wherein the at least one spine comprises a plurality of spines.

8. The medical device according to claim 4, wherein the plurality of spines comprises two or more spines.

9. The medical device according to claim 8, wherein the plurality of spines comprises three or more spines.

10. The medical device according to claim 9, wherein the plurality of spines comprises four or more spines.

11. The medical device according to claim 10, wherein the plurality of spines comprises five or more spines.

12. The medical device according to claim 1, wherein the flexible sheet comprises a plurality of distinct, separate sections, the sections having a unitary-like form in the deployed configuration.

13. The medical device according to claim 4, wherein the mapping assembly provides mechanical information.

14. The medical device according to claim 1, wherein the flexible sheet has a convex form in the deployed configuration.

15. The medical device according to claim 1, wherein the flexible sheet has a concave form in the deployed configuration.

16. The medical device according to claim 1, wherein the plurality of electrodes are used for treating the tissue.

17. A method for mapping tissue comprising the steps of:

providing a device comprising a flexible elongated body;

a handle connected to the elongated body;

at least one spine connected to the elongated body; and

a flexible sheet attached to the at least one spine, the flexible sheet having a plurality of electrodes thereon, the flexible sheet and the plurality of electrodes defining a mapping assembly for mapping electrical information in tissue, wherein the at least one spine and the flexible sheet being movable from a collapsed configuration to a deployed configuration;

conforming the mapping assembly with the tissue when the device is in the deployed configuration;

providing electrical information from the tissue using the plurality of electrodes; and

forming a map with the electrical information.

18. The method according to claim 17, further comprising treating the tissue with the plurality of electrodes.

19. The method according to claim 17, further comprising providing location information of the at least one spine and the mapping assembly using at least one location sensor.

20. The method according to claim 19, further comprising providing location information in the form of six-dimensional coordinate information.

21. The method according to claim 19, further comprising providing mechanical information of the tissue.