Roger E Rugland

US Patent:

62531107, Jun 26, 2001

Filed:

Apr 27, 1999

Appl. No.:

9/300020

Inventors:

Scott J. Brabec - Elk River MN
Kenneth R. Brennen - Fridley MN
William J. Schindeldecker - Foreston MN
Stanten C. Spear - Shoreview MN
Roger E. Rugland - Anoka MN
Bruce C. Johnson - Loretto MN

Assignee:

Medtronic INC - Mpls MN

International Classification:

A61N 105

US Classification:

607116

Abstract:

A method of fabricating a stimulation electrode for use on an implantable lead, the lead and electrode so fabricated and a method of their use. The electrode is made by coating a conductive electrode member with a coating of a high surface area coating having micron or sub-micron surface features and after coating, plasma cleaning the electrode member. The electrode is coupled to an insulated conductor of an implantable lead and is employed to stimulate body tissue. The high surface area coating may be platinum black, ruthenium oxide, another metal oxide, a metal nitride or the like. Steroid may be applied to the electrode member after coating.

US Patent:

55848745, Dec 17, 1996

Filed:

Apr 28, 1995

Appl. No.:

8/430962

Inventors:

Roger E. Rugland - Anoka MN
Norbert H. Cannon - Shoreview MN
Harlen Daman - Alamo TX

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 105

US Classification:

607132

Abstract:

A medical electrical lead which features an improved anchoring sleeve. Specifically the anchoring sleeve has a first end and a second end and further has a series of circumferential suture grooves thereabout. A longitudinally extending slot is provided across each circumferential suture groove. Each slot extends across each groove but is separate from every other slot. In such a manner the area of the anchoring sleeve may be compressed in the area of the groove due to the relevant slot. Because each slot, however, only extends across one groove, the lead body is not otherwise easily compressed in the area away from each groove. Thus the sleeve does not unintentionally engage with and frictionally interfere with the lead body therethrough unless so intended. In the preferred embodiment the anchoring sleeve has three circumferential grooves, each groove having a slot through the anchor sleeve which extends across.

US Patent:

49710702, Nov 20, 1990

Filed:

Dec 5, 1988

Appl. No.:

7/279755

Inventors:

Timothy W. Holleman - Ham Lake MN
Richard Sandstrom - Scandia MN
Roger Rugland - Ham Lake MN
Terrell M. Williams - Coon Rapids MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 105

US Classification:

128784

Abstract:

An epicardial defibrillation electrode employing an elongated, coil electrode embedded in the surface of a flexible electrode pad. The coil electrode provides increased flexibility and superior electrode flex life. The arrangement of the coil electrode provides uniform current distribution.

US Patent:

55627234, Oct 8, 1996

Filed:

Oct 6, 1994

Appl. No.:

8/319190

Inventors:

Roger E. Rugland - Anoka MN
Gary H. Hanse - Ham Lake MN
Annette Hebzynski - Minneapolis MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 105

US Classification:

607126

Abstract:

A medical lead which has a reinforced tine assembly. In particular, the medical electrical lead of the present invention features an elongated lead body covered by an insulative sheath. Positioned upon the proximal end of the lead body is a terminal assembly. Terminal assembly permits the lead to be connected to a pulse generator. Positioned at the distal end of the lead body is an electrode. Also positioned proximate the electrode is a tine assembly. The tine assembly is preferably made from a insulative bio-compatible material, preferably silicone. The tine assembly further features a reinforcement to prevent the tine assembly from elongating. In the preferred embodiment, a polyester is used to provide reinforcement member.

US Patent:

50166450, May 21, 1991

Filed:

Oct 31, 1988

Appl. No.:

7/264916

Inventors:

Terrell Williams - Coon Rapids MN
John G. Keimel - New Brighton MN
Roger Rugland - Anoka MN
Richard Sandstrom - Scandia MN
Timothy Holleman - Ham Lake MN

International Classification:

A61N 105

US Classification:

128784

Abstract:

A medical electrode lead employing one or more elongated electrode coils embedded in the surface of a flexible base pad. The electrode coils take the form of space wound coils following tortuous paths over the surface of the base pad to provide a large surface area electrode. The electrode coils include a plurality of spaced, generally parallel electrode coil segments. Located intermediate adjacent the parallel electrode coil segments are grooves or pleats, molded into the base pad. These grooves or pleats provide increased elasticity of the electrode and increased ability to conform to the contours of the heart. Insulative cores taking the form of plastic tubes are located within the electrode coils to prevent tissue ingrowth between the individual electrode coils, without induly reducing flexibility of the electrode.

US Patent:

48176346, Apr 4, 1989

Filed:

Jun 18, 1987

Appl. No.:

7/063371

Inventors:

Timothy W. Holleman - Ham Lake MN
Richard Sandstrom - Scandia MN
Roger Rugland - Ham Lake MN
Terrell M. Williams - Coon Rapids MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 105

US Classification:

128784

Abstract:

An epicardial defibrillation electrode employing an elongated, coil electrode embedded in the surface of a flexible electrode pad. The coil electrode provides increased flexibility and superior electrode flex life. The arrangement of the coil electrode provides uniform current distribution. The electrode takes the form of a space wound coil following a tortuous path over the surface of the electrode pad to provide a large surface area to reduce current density. In some embodiments, an insulative core is located within the lumen of the coil.