Michael J Ebert

US Patent:

6438425, Aug 20, 2002

Filed:

Oct 12, 1999

Appl. No.:

09/416971

Inventors:

Jennifer P. Miller - Elk River MN
Michael J. Ebert - Fridley MN
Joseph J. Klein - Plymouth MN
Richard D. Ries - Stillwater MN

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 105

US Classification:

607122, 607116, 600373, 600374

Abstract:

An implantable lead having a silicone rubber lead body which has a reduced coefficient of friction on an internal or external surface. The reduction in coefficient of friction is accomplished by extruding a tubular lead body to define a plurality of small parallel longitudinally extending grooves on the inner or outer surface of the lead body. The grooves may be formed by means of a die having inwardly or outwardly directed projections that form the grooves during the extrusion process. The formation of the grooves during extrusion provides a lead body having a lower coefficient of friction without the necessity of additional manufacturing process steps and without additional manufacturing costs.

US Patent:

6961610, Nov 1, 2005

Filed:

Apr 25, 2002

Appl. No.:

10/131440

Inventors:

Zhongping Yang - Woodbury MN, US
Michael J. Ebert - Fridley MN, US
James M. Anderson - Cleveland OH, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N001/02
A61N001/375

US Classification:

607 2, 607 36

Abstract:

A biomedical polymer has a substantially linear base polymer; and branched polyethylene oxide covalently bonded to the base polymer as surface active end groups. The branched polyethylene oxide has at least two, more particularly at least four, and still more particularly at least six branches. Suitable base polymers include epoxies, polyurethanes, polyurethane copolymers, fluoropolymers, polyolefins and silicone rubbers. Biologically active agents may be attached to the branched polyethylene oxide. Suitable biologically active agents include microbial peptide agents, detergents, non-steroidal anti-inflammatory drugs, cations, amine-containing organosilicones, diphosphonates, fatty acids, fatty acid salts, heparin and glucocorticosteroids. The biological polymer may be used as a casing for a medical unit of an implantable medical device, such as a pacemaker. In this case, the casing at least partially encloses the medical unit.

US Patent:

6966322, Nov 22, 2005

Filed:

Apr 19, 2002

Appl. No.:

10/126747

Inventors:

Rick D. McVenes - Isanti MN, US
Kenneth B. Stokes - Anoka MN, US
Michael J. Ebert - Fridley MN, US
James M. Anderson - Cleveland OH, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61B017/88

US Classification:

128899, 607 36, 607 99, 606108, 128898

Abstract:

An implantable medical device, perhaps a pacemaker lead, has a medical unit and a casing at least partially enclosing the medical unit. The casing is formed of a base polymer having surface modifying pendant groups formed of an acrylamide polymer or an acrylamide copolymer, perhaps polyisopropyl acrylamide. The base polymer may be a polyurethane, polyimide, fluoropolymer or polyolefin, for example.

US Patent:

7783365, Aug 24, 2010

Filed:

Aug 2, 2004

Appl. No.:

10/909518

Inventors:

Michael J. Ebert - Fridley MN, US
John L. Sommer - Coon Rapids MN, US
Richard D. Ries - Stillwater MN, US
Jordan D. Honeck - Maple Grove MN, US
Pedro A. Meregotte - Vadnais Heights MN, US
Kenneth R. Brennen - Zimmerman MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/00

US Classification:

607122

Abstract:

An elongate medical electrical lead conductor includes a layer of hydrolytically stable polyimide formed thereover.

US Patent:

7904178, Mar 8, 2011

Filed:

Jan 31, 2007

Appl. No.:

11/669661

Inventors:

Terrell M. Williams - Brooklyn Park MN, US
Michael Jay Ebert - Fridley MN, US
Jordon D. Honeck - Maple Grove MN, US
Richard Dean Ries - Stillwater MN, US
John L. Sommer - Coon Rapids MN, US
Pedro A. Meregotte - Vadnais Heights MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/00

US Classification:

607122

Abstract:

An elongate body of a medical electrical lead includes at least one conductor formed into a coil that includes a first portion and a second portion, wherein the first portion extends within an outer insulation sheath and the second portion extends outside the outer insulation sheath to be exposed to an environment external to the lead body as an energy dissipating shunt.

US Patent:

8295943, Oct 23, 2012

Filed:

Aug 20, 2008

Appl. No.:

12/195287

Inventors:

Michael D. Eggen - Lake Elmo MN, US
John L. Sommer - Coon Rapids MN, US
Michael Ebert - Fridley MN, US
David Wayne Bourn - Maple Grove MN, US
Gabriela C. Miyazawa - Fridley MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/05

US Classification:

607116, 607119, 607122

Abstract:

This disclosure describes implantable medical leads that include a lead body and an electrode. A width of the electrode as measured along a longitudinal direction of the lead varies about the perimeter of the lead. The uneven width of the electrode may bias a stimulation field in a particular direction, e. g. , a radial or transverse direction relative to the longitudinal axis of the lead. Electrodes with an uneven width may be useful for controlling the direction of propagation of the stimulation field in order to, for example, avoid phrenic nerve stimulation during LV pacing or neck muscle stimulation during vagal neurostimulation.

US Patent:

8591783, Nov 26, 2013

Filed:

Oct 30, 2009

Appl. No.:

12/609620

Inventors:

Michael J. Ebert - Fridley MN, US
Steven L. Waldhauser - White Bear Township MN, US
Mark D. Schneider - Mound MN, US
Gregory P. Shipe - Plymouth MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 25/098
B05D 7/00

US Classification:

26417128, 427 23, 427220

Abstract:

The preparation and use of medical devices having radiopaque and echogenic materials including coated tungsten and/or tungsten carbide particles are disclosed herein.

US Patent:

8630719, Jan 14, 2014

Filed:

Oct 22, 2012

Appl. No.:

13/657475

Inventors:

John L Sommer - Coon Rapids MN, US
Michael Ebert - Fridley MN, US
David W Bourn - Maple Grove MN, US
Gabriela C Molnar - Fridley MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/04

US Classification:

607115, 607116, 607117, 607119

Abstract:

This disclosure describes implantable medical leads that include a lead body and an electrode. A width of the electrode as measured along a longitudinal direction of the lead varies about the perimeter of the lead. The uneven width of the electrode may bias a stimulation field in a particular direction, e. g. , a radial or transverse direction relative to the longitudinal axis of the lead. Electrodes with an uneven width may be useful for controlling the direction of propagation of the stimulation field in order to, for example, avoid phrenic nerve stimulation during LV pacing or neck muscle stimulation during vagal neurostimulation.