David J Snyder

US Patent:

6694193, Feb 17, 2004

Filed:

Sep 14, 2001

Appl. No.:

09/954750

Inventors:

Thomas D. Lyster - Bothell WA
Thomas Solosko - Issaquah WA
Carlton B. Morgan - Bainbridge Island WA
Kim J. Hansen - Renton WA
Daniel J. Powers - Issaquah WA
Hans Patrick Griesser - Bainbridge Island WA
Eric L. Jonsen - Seattle WA
David E. Snyder - Bainbridge Island WA

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61N 104

US Classification:

607142

Abstract:

An electrode includes a conductive adhesive layer and a conductive foil layer having a void therein. One such electrode may be mounted in conjunction with another electrode upon a release liner having one or more openings therein to facilitate electrical signal exchange between electrodes. A release liner may include a moisture permeable and/or moisture absorbent membrane. A release liner may alternatively include a conductive backing layer. A release liner may also include an insulating swatch covering an opening. A release liner may be implemented as a foldable sheet, such that multiple electrodes may be mounted upon the same side of the foldable sheet. A medical device to which the mounted electrodes are coupled may characterize the electrical path between the electrodes. The medical device may perform a variety of electrical measurements, including real and/or complex impedance measurements. Based upon one or more measurements, the medical device may provide an indication of electrode condition, fitness for use, and/or an estimated remaining lifetime.

US Patent:

RE43050, Dec 27, 2011

Filed:

May 2, 2005

Appl. No.:

11/121327

Inventors:

Thomas D. Lyster - Bothell WA, US
Thomas Solosko - Issaquah WA, US
Carlton B. Morgan - Bainbridge Island WA, US
Kim J. Hansen - Renton WA, US
Daniel J. Powers - Issaquah WA, US
Hans Patrick Griesser - Bainbridge Island WA, US
Eric L. Jonsen - Seattle WA, US
David E. Snyder - Bainbridge Island WA, US

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61N 1/04

US Classification:

607142

Abstract:

An electrode includes a conductive adhesive layer and a conductive foil layer having a void therein. One such electrode may be mounted in conjunction with another electrode upon a release liner having one or more openings therein to facilitate electrical signal exchange between electrodes. A release liner may include a moisture permeable and/or moisture absorbent membrane. A release liner may alternatively include a conductive backing layer. A release liner may also include an insulating swatch covering an opening. A release liner may be implemented as a foldable sheet, such that multiple electrodes may be mounted upon the same side of the foldable sheet. A medical device to which the mounted electrodes are coupled may characterize the electrical path between the electrodes. The medical device may perform a variety of electrical measurements, including real and/or complex impedance measurements. Based upon one or more measurements, the medical device may provide an indication of electrode condition, fitness for use, and/or an estimated remaining lifetime.