Michael Ennis Coyle

US Patent:

6438426, Aug 20, 2002

Filed:

Mar 23, 2001

Appl. No.:

09/816542

Inventors:

Michael L. Hofstad - Minnetonka MN
John D. Ockuly - Robbinsdale MN
Michael J. Coyle - Minneapolis MN
Mark W. Kroll - Minnetonka MN
Steven E. Scott - Chanhassen MN

Assignee:

Daig Corporation - Minnetonka MN

International Classification:

A61N 105

US Classification:

607125, 607 5, 607122

Abstract:

A coronary sinus catheter includes a distal electrode portion with optimally-spaced and sized ring electrodes and a proximal electrode portion with at least one optimally-spaced and sized larger surface electrode. The catheter has all or some of the following features. First, at least one ring electrode of the distal electrode portion includes a first diameter less than a second diameter of at least one, more proximally disposed, ring electrode of the distal electrode portion. Second, at least one ring electrode of the distal electrode portion includes a first width less than a second width of at least one, more proximally disposed, ring electrode of the distal electrode portion. Third, the distal electrode portion includes at least two ring electrodes and the proximal shock electrode includes at least two larger surface coil electrodes. Fourth, the catheter further includes a collapsible section, adjacent the proximal electrode portion, to facilitate positioning of the catheter within the right atrium.

US Patent:

6447507, Sep 10, 2002

Filed:

Feb 4, 2000

Appl. No.:

09/498139

Inventors:

Michael C. Bednarek - Buffalo MN
John F. Swartz - Tulsa OK
Michael J. Coyle - Minnetonka MN
John D. Ockuly - Minnetonka MN
James A. Hassett - Bloomington MN

Assignee:

Daig Corporation - Minnetonka MN

International Classification:

A61B 1814

US Classification:

606 41, 600374, 607 99, 607105, 607113, 607122

Abstract:

An ablation system for ablating cardiac tissue within a chamber of the human heart including a guiding introducer system, a rail, one end of which is contained within the guiding introducer system, and an ablation catheter system which is supported by the guiding introducer system. The guiding introducer system may be a single or multiple guiding introducers. The ablation system may include a slotted sheath which passes over the rail which supports the ablation catheter. A process is disclosed for ablation of cardiac tissue to form a linear lesion utilizing a rail catheter ablation and mapping system which includes a guiding introducer, a rail and an ablation catheter system advanced over the rail.

US Patent:

62195824, Apr 17, 2001

Filed:

Dec 30, 1998

Appl. No.:

9/224257

Inventors:

Michael L. Hofstad - Minnetonka MN
John D. Ockuly - Robbinsdale MN
Michael J. Coyle - Minneapolis MN
Mark W. Kroll - Minnetonka MN
Steven E. Scott - Chanhassen MN

Assignee:

Daig Corporation - Minnetonka MN

International Classification:

A61N 105

US Classification:

607122

Abstract:

A coronary sinus catheter includes a distal electrode portion with optimally-spaced and sized ring electrodes and a proximal electrode portion with at least one optimally-spaced and sized larger surface electrode. The catheter has all or some of the following features. First, at least one ring electrode of the distal electrode portion includes a first diameter less than a second diameter of at least one, more proximally disposed, ring electrode of the distal electrode portion. Second, at least one ring electrode of the distal electrode portion includes a first width less than a second width of at least one, more proximally disposed, ring electrode of the distal electrode portion. Third, the distal electrode portion includes at least two ring electrodes and the proximal shock electrode includes at least two larger surface coil electrodes. Fourth, the catheter further includes a collapsible section, adjacent the proximal electrode portion, to facilitate positioning of the catheter within the right atrium.

US Patent:

61205001, Sep 19, 2000

Filed:

Nov 12, 1997

Appl. No.:

8/968414

Inventors:

Michael C. Bednarek - Buffalo MN
John F. Swartz - Tulsa OK
Michael J. Coyle - Minnetonka MN
John D. Ockuly - Minnetonka MN
James A. Hassett - Bloomington MN

Assignee:

Daig Corporation - Minnetonka MN

International Classification:

A61B 1739
A61B 5042
A61N 105

US Classification:

606 41

Abstract:

An ablation system for ablating cardiac tissue within a chamber of the human heart including a guiding introducer system, a rail, one end of which is contained within the guiding introducer system, and an ablation catheter system which is supported by the guiding introducer system. The guiding introducer system may be a single or multiple guiding introducers. The ablation system may include a slotted sheath which passes over the rail which supports the ablation catheter. A process is disclosed for ablation of cardiac tissue to form a linear lesion utilizing a rail catheter ablation and mapping system which includes a guiding introducer, a rail and an ablation catheter system advanced over the rail.