Kenneth W Cowan

US Patent:

20140049377, Feb 20, 2014

Filed:

Oct 28, 2013

Appl. No.:

14/064515

Inventors:

Isabelle Banville - Newcastle WA, US
Joseph Leo Sullivan - Kirkland WA, US
David Peter Finch - Bothell WA, US
Daniel Ralph Piha - Bellevue WA, US
Laura Marie Gustavson - Redmond WA, US
Kenneth Frederick Cowan - Kirkland WA, US
Richard C. Nova - Seattle WA, US
Carmen Ann Chacon - Vashon WA, US
Gregory T. Kavounas - Bellevue WA, US

Assignee:

Physio-Control, Inc. - Redmond WA

International Classification:

G06K 7/10

US Classification:

340 101

Abstract:

RFID-based sensors, RFID readers and software sense a changed condition. In one embodiment, an RFID-based sensor includes a base that may be placed at a location where a condition may change. The sensor includes an RFID tag that is coupled to the base. The sensor also includes a detector that can be electrically coupled to the RFID tag. If the condition changes, an electrical property of the detector also changes, impacting an operation of the RFID tag. The impacted operation can be detected by an RFID reader/interrogator so as to provide a notification. An advantage over the prior art is that the condition change can be sensed wirelessly over a domain that can be laborious or hazardous to access otherwise. Moreover, RFID based sensors can be made by modifying common RFID tags.

US Patent:

20140051962, Feb 20, 2014

Filed:

Oct 28, 2013

Appl. No.:

14/064468

Inventors:

Isabelle Banville - Newcastle WA, US
Joseph Leo Sullivan - Kirkland WA, US
David Peter Finch - Bothell WA, US
Daniel Ralph Piha - Bellevue WA, US
Laura Marie Gustavson - Redmond WA, US
Kenneth Frederick Cowan - Kirkland WA, US
Richard C. Nova - Seattle WA, US
Carmen Ann Chacon - Vashon WA, US
Gregory T. Kavounas - Bellevue WA, US

Assignee:

Physio-Control, Inc. - Redmond WA

International Classification:

A61B 5/0424
A61N 1/04
A61B 5/00

US Classification:

600386

Abstract:

Patient electrodes, patient monitors, defibrillators, wearable defibrillators, software and methods may warn when an electrode stops being fully attached to the patient's skin. A patient electrode includes a pad for attaching to the skin of a patient, a lead coupled to the pad, and a contact detector that can change state, when the pad does not contact fully the skin of the patient. When the detector changes state, an output device may emit an alert, for notifying a rescuer or even the patient.

US Patent:

20220313989, Oct 6, 2022

Filed:

Jun 23, 2022

Appl. No.:

17/847680

Inventors:

- Grand Cayman, KY
Erick Michael Roane - Kirkland WA, US
Laura Marie Gustavson - Redmond WA, US
Kenneth F. Cowan - Everett WA, US
Robert Reuben Buchanan - Bothell WA, US
Daniel James Finney - Woodinville WA, US
Jason W. Fouts - Bothell WA, US
Gregory T. Kavounas - Bellevue WA, US

Assignee:

West Affum Holdings Corp. - Grand Cayman

International Classification:

A61N 1/08
A61N 1/39
A61B 5/00
A61B 5/332

Abstract:

A Wearable Cardiac Defibrillator (WCD) system is configured to be worn by a patient who carries a mobile communication device. The mobile communication device has a user interface that is configured to enable the patient to enter wireless inputs. The WCD system includes a communication module that is configured to establish a local comlink with the mobile communication device. The WCD system also includes a tethered action unit that has a user interface configured to enable the patient to enter action inputs. The WCD system can perform some of its functions in response to the action inputs or to the wireless inputs. Since the wireless inputs can be provided from the mobile communication device instead of the action unit, the patient is less likely to attract attention when entering them, and thus exhibit better compliance.

US Patent:

20220296909, Sep 22, 2022

Filed:

Feb 28, 2022

Appl. No.:

17/682245

Inventors:

- Grand Cayman, KY
Erick M. Roane - Bellevue WA, US
Kenneth F. Cowan - Kirkland WA, US
Derek J. Valleroy - Seattle WA, US
Gregory T. Kavounas - Bellevue WA, US

Assignee:

West Affum Holdings Corp. - Grand Cayman

International Classification:

A61N 1/39
A61B 5/024
A61N 1/04
A61B 5/30
A61B 5/282
A61B 5/364

Abstract:

A wearable cardioverter defibrillator (WCD) comprises a plurality of electrocardiography (ECG) electrodes and a plurality of defibrillator electrodes to contact the patient's skin when the WCD is delivering therapy to the patient, a preamplifier coupled to the ECG electrodes to obtain ECG data from the patient. a processor to receive the ECG data from the preamplifier, and a high voltage subsystem to provide a defibrillation voltage to the patient through the plurality of defibrillator electrodes in response to a shock signal received from the processor. In a first power mode of a range of power modes the preamplifier is configured to perform low-fidelity ECG acquisition and the processor is configured to perform simple arrythmia detection analysis, and in a second mode of the range of power modes the preamplifier is configured to perform high-fidelity ECG acquisition and the processor is configured to perform complex arrythmia detection analysis.

US Patent:

20230071214, Mar 9, 2023

Filed:

Sep 2, 2022

Appl. No.:

17/902508

Inventors:

- Grand Cayman KY, US
Joseph Sullivan - Kirkland WA, US
Kenneth Cowan - Kirkland WA, US
Korine Haynes - Woodinville WA, US
Regina New - Henrico VA, US
Laura Gustavson - Redmond WA, US
Phillip Foshee, Jr. - Woodinville WA, US

International Classification:

A61B 5/00
A61B 5/0205

Abstract:

A wearable medical monitoring system is provided that includes a support structure worn by a patient, which also housing electrodes and sleep sensors for generating health data. The health data includes ECG data, respiration data, and sleep data, which are used to determine cardiac conditions and sleep disorders. Sleep disorder indexes are formulated with various combinations of sleep factors from the health data of the patient, correlating in time with particular periods of sleep by the patient. In comparing the sleep disorder indexes with respective sleep disorder indicators, potential sleep disorders may be discerned by the monitoring system. Sleep information about the sleep disorders and warnings may be transmitted by the monitoring system to health support entities.

US Patent:

20210322759, Oct 21, 2021

Filed:

Jun 30, 2021

Appl. No.:

17/364357

Inventors:

- Grand Cayman, KY
Kenneth Frederick Cowan - Redmond WA, US

Assignee:

West Affum Holdings Corp. - Grand Cayman

International Classification:

A61N 1/04
A61B 5/00
A61B 5/0205
A61N 1/39

Abstract:

A wearable cardioverter defibrillator (“WCD”) system may include an impedance detector configured to render an impedance signal of the patient. The WCD system may determine, from the impedance signal, a characteristic of breathing by the patient that can be used as a vital sign. The WCD system may determine, from at least the breathing characteristic, whether or not a shock criterion is met. If the shock criterion is met, the WCD system may control a discharge circuit to discharge a stored electrical charge through the patient. An advantage can be that the breathing characteristic may be used to determine whether or not a patient is experiencing a condition that requires defibrillation therapy, such as sudden cardiac arrest. Even more advantages can be had in discerning the state of the patient when the breathing characteristic is combined with other data, such as from a motion detector.

US Patent:

20200121938, Apr 23, 2020

Filed:

Dec 17, 2019

Appl. No.:

16/717566

Inventors:

- Grand Cayman, KY
Joseph Leo Sullivan - Kirkland WA, US
Daniel Peter Finch - Bothell WA, US
Isabelle Banville - Newcastle WA, US
Laura Marie Gustavson - Redmond WA, US
Kenneth Frederick Cowan - Kirkland WA, US
Richard C. Nova - Seattle WA, US
Robert Reuben Buchanan - Bothell WA, US
Krystyna Szul - Seattle WA, US
Gregory T. Kavounas - Bellevue WA, US

Assignee:

West Affum Holdings Corp. - Grand Cayman

International Classification:

A61N 1/39
A61N 1/04
A61N 1/362

Abstract:

In some embodiments, a wearable medical device system includes a processor configured to determine whether a patient requires electrical therapy to be provided via a plurality of therapy electrodes, the electrical therapy comprising discharging at least a portion of a stored electrical charge from an energy storage module, and if so, cause a fluid deploying mechanism to deploy a portion of the stored fluid to an interface between at least two therapy electrodes and the patient's skin prior to providing the electrical therapy, the deployed portion of fluid adapted to decrease the impedance measured by an impedance measurement circuit, and cause the fluid deploying mechanism to deploy an additional portion of fluid in response to the impedance measured by the impedance measurement circuit increasing above a threshold during the electrical therapy.

US Patent:

20200069953, Mar 5, 2020

Filed:

Jun 26, 2019

Appl. No.:

16/453488

Inventors:

- Grand Cayman, KY
Erick M. Roane - Bellevue WA, US
Kenneth F. Cowan - Kirkland WA, US
Derek J. Valleroy - Seattle WA, US
Gregory T. Kavounas - Bellevue WA, US

International Classification:

A61N 1/39
A61B 5/0428
A61B 5/0408
A61B 5/0468
A61N 1/04
A61B 5/024

Abstract:

A wearable cardioverter defibrillator (WCD) comprises a plurality of electrocardiography (ECG) electrodes and a plurality of defibrillator electrodes to contact the patient's skin when the WCD is delivering therapy to the patient, a preamplifier coupled to the ECG electrodes to obtain ECG data from the patient. a processor to receive the ECG data from the preamplifier, and a high voltage subsystem to provide a defibrillation voltage to the patient through the plurality of defibrillator electrodes in response to a shock signal received from the processor. In a first power mode of a range of power modes the preamplifier is configured to perform low-fidelity ECG acquisition and the processor is configured to perform simple arrythmia detection analysis, and in a second mode of the range of power modes the preamplifier is configured to perform high-fidelity ECG acquisition and the processor is configured to perform complex arrythmia detection analysis.