David E Snyder

US Patent:

6356785, Mar 12, 2002

Filed:

Aug 18, 1999

Appl. No.:

09/331998

Inventors:

Cecily Anne Snyder - San Francisco CA 94118
Bradford E. Gliner - Ilssaquah WA 98029
David E. Snyder - Bainbridge Island WA 98110

International Classification:

A61N 139

US Classification:

607 5

Abstract:

This invention relates generally to defibrillators and, in particular, to a defibrillator with a built in CPR (âCPRâ) prompt system. The invention also relates generally to a defibrillator with a built-in Advanced Cardiac Life Support (âACLSâ) prompt system. Defibrillators include manual defibrillator, automatic or semiautomatic external defibrillators (âAEDsâ) and defibrillator trainers. More specifically, this invention is directed to a defibrillator system capable of generating audible prompts and/or visual prompts through an audible prompt generator and a visual prompt generator, wherein the defibrillator instructs a rescuer on performing CPR or ACLS. The instructions are controlled through a prompt generator and may be audible prompts or visual images, or a combination of the two. The prompts may be emitted at a predetermined rate and may be synchronized. This invention is also directed to a method for administering care comprising, providing instructions to a rescuer.

US Patent:

6370428, Apr 9, 2002

Filed:

Aug 11, 1999

Appl. No.:

09/372544

Inventors:

David E. Snyder - Bainbridge Island WA 98110
Bradford E. Gliner - Issaquah WA 98029
Thomas D. Lyster - Bothell WA 98021

International Classification:

A61N 139

US Classification:

607 5

Abstract:

A defibrillator configurable for optimal behavior across a broad spectrum of patients, users, and circumstances is provided. A set of environmental characteristics that represent the patient population, the user population, and the possible circumstances are determined and then applied to a configure algorithm to determine an optimal behavior of the defibrillator as reflected through the set up parameters. The set of environmental characteristics can be entered manually or determined from dispatch data supplied by computerized dispatch systems. The optimal behavior can also be achieved using adaptation algorithms such as fuzzy logic and neural networks that allow the defibrillator to obtain measurements of the environmental characteristics and alter its behavior based on those measurements.

US Patent:

6553257, Apr 22, 2003

Filed:

Mar 13, 2001

Appl. No.:

09/804398

Inventors:

David Snyder - Bainbridge Island WA
Carlton Morgan - Bainbridge Island WA

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61N 139

US Classification:

607 5

Abstract:

A method for reducing delay between termination of cardiopulmonary resuscitation and administration of a defibrillating shock. An electrocardiogram signal of the patient is monitored during administration of cardiopulmonary resuscitation to a patient. The electrocardiogram signal is analyzed to determine whether a shockable rhythm exists. It is indicated that a shockable rhythm exists and/or that a defibrillating shock will be administered. Cardiopulmonary resuscitation is stopped. The defibrillating shock is administered within 10 seconds of the cessation of cardiopulmonary resuscitation.

US Patent:

6658291, Dec 2, 2003

Filed:

Apr 8, 1999

Appl. No.:

09/288581

Inventors:

David E Snyder - Bainbridge Island WA

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61N 139

US Classification:

607 8, 607142

Abstract:

This invention relates generally to medical electrode systems. In particular, the electrodes of this invention are capable of delivering synchronized cardioversion energy pulses as well as defibrillation energy pulses to a patient. The electrodes of this invention are appropriate for use with an automatic or semi-automatic external defibrillator (âAEDâ) as well as defibrillators capable of cardioversion. At least one electrode in an electrode set has a substrate with an adhesive surface, and conductors in communication with the substrate. The electrode further has a plurality of conductive elements electrode elements disposed on a substrate wherein each electrode element is in a spatial relationship to each other and electrically connected to the conductors, further the spatial relationship of the conductors facilitates the determination of an overall electrode pad attachment quality. A method of using the electrodes of this invention is also described.

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:

7027864, Apr 11, 2006

Filed:

Apr 17, 2002

Appl. No.:

10/124037

Inventors:

David Snyder - Bainbridge Island WA, US
Tom Lyster - Bothell WA, US
Jon Bishay - Woodinville WA, US
Gust Bardy - Seattle WA, US
Carl Morgan - Bainbridge Island WA, US

Assignee:

Koninklijke Philips Electronics N.V. - Eindhoven

International Classification:

A61N 1/18

US Classification:

607 5

Abstract:

A defibrillator having a pair of electrodes for delivering an impedance-compensated defibrillation shock and a method thereof is provided. The defibrillator can be deployed rapidly and effectively with no or minimal clothing and hair removal. To achieve this, one electrode is coupled to a neck region of the patient, whereas the other electrode is coupled to the patient's body. Both attachment areas are easily accessible to the rescuer, thus allowing a minimally trained user to easily deploy the defibrillator to treat the patient. A wide range of energy levels that are safe for the patient can be generated selectively based on the patient impedance. The presence of voids in the electrodes decrease the effective shock impedance of the electrodes, thus allowing the defibrillator to operate at a lower level of energy when delivering the electrical pulse to the victim's heart.

US Patent:

7463922, Dec 9, 2008

Filed:

Jul 13, 2000

Appl. No.:

09/615280

Inventors:

David E Snyder - Bainbridge Island WA, US
Thomas D Lyster - Bothell WA, US

Assignee:

Koninklijke Philips Electronics, N.V. - Eindhoven

International Classification:

A61N 1/39

US Classification:

607 5

Abstract:

A circuit includes a sensor coupled to a processor. The sensor senses an electrical signal that is representative of a patient parameter, and the processor determines a condition of the patient by analyzing first and second overlapping portions of the sensed electrical signal. For example, a portable AED can include such a circuit to sense first and second overlapping sections of an ECG. By utilizing this overlapping-window technique, the AED can obtain and analyze multiple sections of ECG data, and thus can make a shock/no-shock decision, more quickly than an AED using contiguous-window analysis. Thus, the overlapping-window technique allows one to use both longer ECG sections (better accuracy per window) and more of these longer sections (better voting accuracy) over a given analysis time. Furthermore, this overlapping-window technique significantly reduces or eliminates boundary problems because the boundary of one ECG section is within the interior of either the preceding or the following overlapping ECG section.

US Patent:

7747551, Jun 29, 2010

Filed:

Feb 26, 2007

Appl. No.:

11/679135

Inventors:

David Snyder - Bainbridge Island WA, US

Assignee:

NeuroVista Corporation - Seattle WA

International Classification:

G06F 15/18

US Classification:

706 20

Abstract:

Systems and methods for enhancing the accuracy of classifying a measurement by providing an artificial class. Seizure prediction systems may employ a classification system including an artificial class and a user interface for signaling uncertainty in classification when a measurement is classified in the artificial class.