Ablation catheter, system, and method of use thereof

Overview

Information

Number: 6893438
Application: 10/286548
Filing date: 11/01/2002
Issue date: 05/17/2005
Inventor(s): Jeffrey A. Hall, Bruce H. KenKnight, G. Neal Kay, Gregory P. Walcott, Wade A. Bowe

US Classification: 606/41; 607/122

Citations

Boston Scientific (3)

Number	Title	Issue Date
6315778	Apparatus for creating a continuous annular lesion	2001/11/13
6004269	Catheters for imaging, sensing electrical potentials, and ablating tissue	1999/12/21
6529756	Apparatus for mapping and coagulating soft tissue in or around body orifices	2003/03/04

Regents of the University of California, The (2)

Number	Title	Issue Date
6012457	Device and method for forming a circumferential conduction block in a pulmonary vein	2000/01/11
5971983	Tissue ablation device and method of use	1999/10/26

Medtronic (2)

Number	Title	Issue Date
6325797	Ablation catheter and method for isolating a pulmonary vein	2001/12/04
5755760	Deflectable catheter	1998/05/26

St. Jude Medical (1)

Number	Title	Issue Date
5690611	Process for the treatment of atrial arrhythima using a catheter guided by shaped giding introducers	1997/11/25

Cardiac Pacemakers (1)

Number	Title	Issue Date
6270496	Steerable catheter with preformed distal shape and method for use	2001/08/07

NA (1)

Number	Title	Issue Date
5687723	Mapping and ablation catheter system	1997/11/18

Abstract

Abstract

A cardiac ablation apparatus for producing a circumferential ablation that electrically isolates a heart chamber wall portion from vessel such as a pulmonary vein extending into said wall portion comprises (a) an elongate centering catheter having a distal end portion; (b) an expandable centering element connected to said centering catheter distal end portion and configured for positioning within said vessel when in a retracted configuration, and for securing said elongate centering catheter in a substantially axially aligned position with respect to said vessel when said centering element is in an expanded configuration; (c) an ablation catheter slidably connected to said centering catheter said ablation element having a distal end portion, and (d) an expandable ablation element connected to said ablation catheter distal end portion. The ablation element is configured to form a circumferential ablation on the wall around the elongate centering catheter when the centering catheter is axially aligned with respect to the vessel. In a further embodiment, a non-expandable, compliant centering element is employed, such as an elastic finger. Systems incorporating such an apparatus and methods of use thereof are also disclosed.

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NA (8)

Number	Title
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Cordis Webster (6)

Number	Title
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REGENTS OF THE UNIVERSITY OF MICHIGAN, THE (2)

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Tech Analysis

Class	Subclass	Type	Reference Factor	Citation Factor	Strength	Grant time	Early grant (%)
606	41	Emerging	Average	Average	Medium High	Average	37.4
607	122	Emerging	Sustaining	Average	Medium Low	Average	51.6