Robert P Marx

US Patent:

20130296727, Nov 7, 2013

Filed:

Nov 14, 2012

Appl. No.:

13/676593

Inventors:

Robert Marx - Kent WA, US
Robert G. Walker - Seattle WA, US

Assignee:

Physio-Control, Inc. - Redmond WA

International Classification:

A61B 5/04

US Classification:

600513, 600523

Abstract:

An external medical device can include a housing and a processor within the housing. The processor can be configured to receive an input signal for a patient receiving chest compressions from a mechanical chest compression device. The processor can also be configured to select at least one filter mechanism, the mechanical chest compression device having a chest compression frequency f. The processor can be further configured to apply the at least one filter mechanism to the signal to at least substantially remove chest compression artifacts from the signal, wherein the chest compression artifacts correspond to the chest compressions being delivered to the patient by the mechanical chest compression device, and wherein the at least one filter mechanism substantially rejects content in the frequency f plus content in at least one more frequency that is a higher harmonic to the frequency f.

US Patent:

20140047314, Feb 13, 2014

Filed:

Aug 12, 2013

Appl. No.:

13/964811

Inventors:

Isabelle Banville - Newcastle WA, US
Robert Marx - Kent WA, US
Fred Chapman - Newcastle WA, US
Randy Merry - Woodinville WA, US

Assignee:

Physio-Control, Inc - Redmond WA

International Classification:

G06F 17/24

US Classification:

715230

Abstract:

Embodiments operate in contexts where field data have been generated from a field event, and annotations have been generated from the field data, which purport to identify events within the field data, such as CPR compressions and ventilations. Metrics are generated from the annotations, which are used in training. In such contexts, a grade may be assigned that reflects how well the annotations meet one or more accuracy criteria. The grade may be used in a number of ways. Reviewers may opt to disregard field data and metrics that have a low grade. Expert annotators may be guided as to precisely which annotations to revise, saving time. A low grade may decide that the results are not emailed to reviewers, but to annotators. A learning medical device can use the grade internally to adjust its own internal parameters so as to improve its annotating algorithms.

US Patent:

20220362569, Nov 17, 2022

Filed:

Jul 29, 2022

Appl. No.:

17/876735

Inventors:

- Dublin, IE
Joseph L. Sullivan - Kirkland WA, US
Robert P. Marx - Redmond WA, US

Assignee:

West Affum Holdings DAC - Dublin

International Classification:

A61N 1/39
A61B 5/11
A61B 5/00
A61B 5/282

Abstract:

A wearable medical includes a walking detector module with a motion sensor that is configured to detect when the patient is walking or running. In embodiments, a parameter (referred to herein as a “Bouncy” parameter) is determined from Y-axis acceleration measurements. In some embodiments, the Bouncy parameter is a measurement of the AC component of the Y-axis accelerometer signal. This detection can be used by the medical device to determine how and/or whether to provide treatment to the patient wearing the medical device. For example, when used in a WCD, the walking detector can prevent “false alarms” because a walking patient is generally conscious and not in need of a shock.

US Patent:

20220193429, Jun 23, 2022

Filed:

Dec 22, 2021

Appl. No.:

17/559992

Inventors:

- Kalamazoo MI, US
Steven Barry Duke - Bothell WA, US
Robert P. Marx - Kent WA, US
Daniel W Piraino - Seattle WA, US
Tyson G. Taylor - Bothell WA, US

International Classification:

A61N 1/39
G16H 20/30
G16H 40/63
G16H 50/30

Abstract:

Systems, devices, and methods provide up-to-date defibrillation shock recommendations. In an example method, multiple segments of an electrocardiogram (ECG) of an individual are detected from an individual receiving chest compressions. The multiple segments are evaluated to determine whether the individual is exhibiting a shockable heart rhythm. A medical device outputs a recommendation indicating whether a defibrillation shock is advised based on the most recent determination of the individual's heart rhythm. For example, the medical device outputs an up-to-date recommendation on-demand in response to an input signal from a user. In some examples, the medical device updates the recommendation based on ongoing analysis of the ECG.

US Patent:

20210213295, Jul 15, 2021

Filed:

Mar 29, 2021

Appl. No.:

17/215782

Inventors:

- Redmond WA, US
Joseph L. Sullivan - Kirkland WA, US
Robert Marx - Kent WA, US

International Classification:

A61N 1/39
A61B 5/0205
A61B 5/00
A61B 5/282
A61B 5/304

Abstract:

A wearable cardioverter defibrillator system includes a support structure that a patient can wear. The system also includes electrodes that contact the patient, and define two or more channels from which ECG signals are sensed. A processor may evaluate the channels by analyzing their respective ECG signals, to determine which contains less noise than the other(s). The analysis can be by extracting statistics from the ECG signals, optionally after first processing them, and then by comparing these statistics. These statistics may include tall peak counts, amplitudes of peaks compared to historical peak amplitudes, signal baseline shift, dwell time near a baseline, narrow peak counts, zero crossings counts, determined heart rates, and so on. Once the less noisy signal is identified, its channel can be followed preferentially or to the exclusion of other channels, for continuing monitoring and/or determining whether to shock the patient.

US Patent:

20190209853, Jul 11, 2019

Filed:

Oct 11, 2018

Appl. No.:

16/158174

Inventors:

Joseph L. Sullivan - Kirkland WA, US
Robert P. Marx - Redmond WA, US

International Classification:

A61N 1/39
A61B 5/11

Abstract:

A wearable medical includes a walking detector module with a motion sensor that is configured to detect when the patient is walking or running. In embodiments, a parameter (referred to herein as a “Bouncy” parameter) is determined from Y-axis acceleration measurements. In some embodiments, the Bouncy parameter is a measurement of the AC component of the Y-axis accelerometer signal. This detection can be used by the medical device to determine how and/or whether to provide treatment to the patient wearing the medical device. For example, when used in a WCD, the walking detector can prevent “false alarms” because a walking patient is generally conscious and not in need of a shock.

US Patent:

20180264279, Sep 20, 2018

Filed:

Feb 22, 2018

Appl. No.:

15/902024

Inventors:

- Grand Cayman, KY
Joseph L. Sullivan - Kirkland WA, US
Robert Marx - Kent WA, US

International Classification:

A61N 1/39

Abstract:

A wearable cardioverter defibrillator system includes a support structure that a patient can wear. The system also includes electrodes that contact the patient, and define two or more channels from which ECG signals are sensed. A processor may evaluate the channels by analyzing their respective ECG signals, to determine which contains less noise than the other(s). The analysis can be by extracting statistics from the ECG signals, optionally after first processing them, and then by comparing these statistics. These statistics may include tall peak counts, amplitudes of peaks compared to historical peak amplitudes, signal baseline shift, dwell time near a baseline, narrow peak counts, zero crossings counts, determined heart rates, and so on. Once the less noisy signal is identified, its channel can be followed preferentially or to the exclusion of other channels, for continuing monitoring and/or determining whether to shock the patient.