Patents by Inventor Robert G. Walker

Robert G. Walker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180360385
    Abstract: In embodiments, an external medical device is intended to care for a patient. If it receives an input that signifies that ventilation artifact is present in a signal of the patient, it transmits a corrective signal responsive to the received input. In further embodiments, a patient signal is received, which is generated from a patient while the patient is or was receiving chest compressions at a frequency Fc, and also receiving ventilations at frequency Fv. At least one filter mechanism may be applied to the patient signal to substantially remove artifacts at a) frequency Fc, b) a higher harmonic of frequency Fc, and c) a third frequency substantially equaling frequency Fc plus or minus frequency Fv, while substantially passing other frequencies between them. As a result, the patient signal can be cleaner, for diagnosing the patient's state more accurately.
    Type: Application
    Filed: August 3, 2018
    Publication date: December 20, 2018
    Inventors: Joseph L. Sullivan, Robert G. Walker
  • Patent number: 10136815
    Abstract: A remote patient monitoring system having a main patient monitor and a remote patient monitor. The main patient monitor is configured to receive and collect one or more patient physiological parameters and to provide an alarm in response to an alarm trigger. The alarm trigger includes a determination that at least one of the collected patient physiological parameters has reached a predetermined value. The remote patient monitor has an alarm reset and is configured to be carried by a caregiver. It is also configured to receive a signal from the main patient monitor in response to the alarm and to transmit an indication about the alarm trigger. The indication includes one or more of a notification that the patient is being attended to, a request by the caregiver for additional help, or a message about resolution of the alarm trigger.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 27, 2018
    Assignee: PHYSIO-CONTROL, INC.
    Inventors: Richard Mark Lyon, Robert G. Walker, Jeffery S. Edwards, Niklas Andersson, Bethany Joyce Johnson
  • Patent number: 10135613
    Abstract: Disclosed is a method for generating a privilege-based key using a computer. In the method, a privilege is received from an application, and verified as being associated with the application. The computer cryptographically generates a second key using a first key and the privilege. The second key is provided to the application.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: November 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Ivan Hugh McLean, Laurence G. Lundblade, Brian Harold Kelley, Robert G. Walker
  • Publication number: 20180311452
    Abstract: Ventilation systems and/or methods are disclosed in which a cadence for the administration of ventilations is provided, selected and/or input. A notification is output at the completion of an interval based on the cadence. A subsequent interval can be started upon completion of a prior interval or can be started based on an indication that a ventilation has been administered. The elapsed time, from the beginning of the interval, and/or expiry of the interval, to the indication that a ventilation has been administered, can be tracked, monitored and/or displayed. Such indication can be provided by a user and/or based on sensor data indicative of a ventilation administration, and the indication can also indicate that an expected ventilation was not administered.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 1, 2018
    Inventor: Robert G. Walker
  • Publication number: 20180303411
    Abstract: The disclosed physiological feedback systems and methods assist with assessing, monitoring and/or treating a patient experiencing a cardiac arrest event. The systems and methods receive multiple inputs and are continuous and/or iterative during a treatment session to provide physiological state trends of the patient. An index of the physiological state of the patient can be derived and confounders, and/or their effects, can be identified, and/or removed, from the index. Additionally, the systems and methods can assist with determining ischemic injury in a patient based on cerebral tissue oxygenation and/or other physiological data.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 25, 2018
    Inventors: Robert G. Walker, Fred W. Chapman
  • Publication number: 20180303367
    Abstract: The system and method provide for electrocardiogram analysis and optimization of patient-customized cardiopulmonary resuscitation and therapy delivery. An external medical device includes a housing and a processor within the housing. The processor can be configured to receive an input signal for a patient receiving chest compressions and to select at least one filter mechanism and to apply the filter mechanism to the signal to at least substantially remove chest compression artifacts from the signal. A real time dynamic analysis of a cardiac rhythm is applied to adjust and integrate CPR prompting of a medical device. Real-time cardiac rhythm quality is facilitated using a rhythm assessment meter.
    Type: Application
    Filed: October 27, 2017
    Publication date: October 25, 2018
    Inventors: Joseph L. Sullivan, Ronald E. Stickney, Robert G. Walker, Daniel Piraino, Isabelle Banville, Fred W. Chapman
  • Publication number: 20180297702
    Abstract: Technologies and implementations for using unmanned aerial vehicles in emergency applications.
    Type: Application
    Filed: June 11, 2018
    Publication date: October 18, 2018
    Inventors: Robert G. Walker, Mitchell Smith, Kristina Furlan, John Daynes, Michael Arbuck, Alex Esibov, Melissa Pochop-Miller, Dennis Skelton
  • Publication number: 20180272148
    Abstract: The defibrillator may include a heart rhythm detector to detect the heart rhythm of a patient, a manual mode controller structured to set the defibrillator in a synchronous shock operating mode or an asynchronous shock operating mode depending on an input from a human operator, a shock module to cause the defibrillator to deliver a shock to the patient according to the operating mode, and an automatic mode controller structured to, after the shock module has delivered the shock to the patient, set the external defibrillator to the synchronous shock operating mode or the asynchronous shock operating mode depending on the detected heart rhythm of the patient and without input from the human operator.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Inventors: Robert G. Walker, Fred W. Chapman, Isabelle Banville, James W. Taylor
  • Publication number: 20180272146
    Abstract: An external defibrillator can have a synchronous shock operating mode and an asynchronous shock operating mode and include a controller to set the defibrillator in the synchronous shock operating mode or the asynchronous shock operating mode. The defibrillator can also include a shock module to cause the defibrillator to deliver shock therapy to the patient according to the operating mode of the defibrillator, and a prompt module to transmit a prompt, after delivery of the shock therapy, that includes the operating mode of the defibrillator.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Inventors: Robert G. Walker, Fred W. Chapman, Isabelle Banville
  • Patent number: 10039497
    Abstract: In embodiments, an external medical device is intended to care for a patient. If it receives an input that signifies that ventilation artifact is present in a signal of the patient, it transmits a corrective signal responsive to the received input. In further embodiments, a patient signal is received, which is generated from a patient while the patient is or was receiving chest compressions at a frequency Fc, and also receiving ventilations at frequency Fv. At least one filter mechanism may be applied to the patient signal to substantially remove artifacts at a) frequency Fc, b) a higher harmonic of frequency Fc, and c) a third frequency substantially equaling frequency Fc plus or minus frequency Fv, while substantially passing other frequencies between them. As a result, the patient signal can be cleaner, for diagnosing the patient's state more accurately.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 7, 2018
    Assignee: Physio-Control, Inc.
    Inventors: Joseph L. Sullivan, Robert G. Walker
  • Publication number: 20180199842
    Abstract: A portable medical device having an intravenous line flow sensor integrated into a cable. The portable medical device may be a defibrillator having an ECG or electrode cable couple to ECG or electrode leads. The flow sensor may be integrated into the ECG or electrode cable. The portable medical device uses the flow sensor to capture and store information about fluids delivered to a patient being treated with the portable medical device. The information may include total volume provided, flow rate, and the like. The information may then be used to evaluate the treatment provided to the patient.
    Type: Application
    Filed: July 31, 2017
    Publication date: July 19, 2018
    Inventors: ROBERT G. WALKER, BARRY D. CURTIN
  • Publication number: 20180185240
    Abstract: In embodiments, a CPR chest compression system includes a retention structure that can retain the patient's body, and a compression mechanism that can perform automatically CPR compressions and releases to the patient's chest. The compression mechanism can pause the performing of the CPR compressions for a short time, so that an attendant can check the patient. The CPR system also includes a user interface that can output a human-perceptible check patient prompt, to alert an attendant to check the patient during the pause. An advantage can be when the attendant checks in situations where the condition of the patient might have changed, and an adjustment is needed. Or in situations where the patient may have improved enough to where the compressions are no longer needed.
    Type: Application
    Filed: June 7, 2017
    Publication date: July 5, 2018
    Inventors: Erik von Schenck, Anders Nilsson, Sara Lindroth, Robert G. Walker, Fred W. Chapman, Krystyna Szul, Gregory T. Kavounas
  • Patent number: 9994315
    Abstract: Systems and methods for the use of unmanned aerial vehicles (UAVs) in medical emergencies are disclosed herein. The systems and methods include receiving at a first UAV an indication of a medical emergency and coordinating with a second UAV based on the second UAV's capabilities. The first UAV determines if the capabilities of the second UAV complement the capabilities of the first UAV based on the indicated medical emergency. The disclosed systems and methods deploy both the first and second UAVs to the medical emergency if the capabilities of the second UAV complement those of the first UAV.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: June 12, 2018
    Assignee: Physio-Control, Inc.
    Inventors: Robert G. Walker, Mitchell Smith, Kristina Furlan, John Daynes, Michael Arbuck, Alex Esibov, Melissa Pochop-Miller, Dennis Skelton
  • Publication number: 20180146874
    Abstract: The present disclosure encompasses an “artifact score” derived from the signal characteristics of an acquired 12-lead ECG, (2) a “patient context score” derived from key elements of the patient's history, presentation, and prehospital emergency care, and (3) techniques for integrating these scores into an emergency medical care system.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 31, 2018
    Inventors: Robert G. Walker, Daniel W. Piraino
  • Patent number: 9981140
    Abstract: An external defibrillator can have a synchronous shock operating mode and an asynchronous shock operating mode and include a controller to set the defibrillator in the synchronous shock operating mode or the asynchronous shock operating mode. The defibrillator can also include a shock module to cause the defibrillator to deliver shock therapy to the patient according to the operating mode of the defibrillator, and a prompt module to transmit a prompt, after delivery of the shock therapy, that includes the operating mode of the defibrillator.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 29, 2018
    Assignee: Physio-Control, Inc.
    Inventors: Robert G. Walker, Fred W. Chapman, Isabelle Banville
  • Patent number: 9981141
    Abstract: The defibrillator may include a heart rhythm detector to detect the heart rhythm of a patient, a manual mode controller structured to set the defibrillator in a synchronous shock operating mode or an asynchronous shock operating mode depending on an input from a human operator, a shock module to cause the defibrillator to deliver a shock to the patient according to the operating mode, and an automatic mode controller structured to, after the shock module has delivered the shock to the patient, set the external defibrillator to the synchronous shock operating mode or the asynchronous shock operating mode depending on the detected heart rhythm of the patient and without input from the human operator.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 29, 2018
    Assignee: Physio-Control, Inc.
    Inventors: Robert G. Walker, Fred W. Chapman, Isabelle Banville, James W. Taylor
  • Publication number: 20180001098
    Abstract: An apparatus and method is provided for a defibrillator that specifies treatment protocols in terms of number of chest compressions instead of time intervals. The defibrillator includes a connection port that is configured to attach with a plurality of electrodes that are capable of delivery of a defibrillation shock and/or sensing one or more physical parameters. An energy storage device capable of storing a charge is attached to the plurality of electrodes. A controller is coupled to the plurality of electrodes and the energy storage device, the controller is configured to provide CPR chest compression instructions in terms of the numbers of CPR chest compressions.
    Type: Application
    Filed: May 1, 2017
    Publication date: January 4, 2018
    Inventors: FRED CHAPMAN, Robert G. Walker, Ronald Eugene Stickney
  • Publication number: 20170360375
    Abstract: In embodiments, an external medical device is intended to care for a patient. If it receives an input that signifies that ventilation artifact is present in a signal of the patient, it transmits a corrective signal responsive to the received input. In further embodiments, a patient signal is received, which is generated from a patient while the patient is or was receiving chest compressions at a frequency Fc, and also receiving ventilations at frequency Fv. At least one filter mechanism may be applied to the patient signal to substantially remove artifacts at a) frequency Fc, b) a higher harmonic of frequency Fc, and c) a third frequency substantially equaling frequency Fc plus or minus frequency Fv, while substantially passing other frequencies between them. As a result, the patient signal can be cleaner, for diagnosing the patient's state more accurately.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Inventors: Joseph L. Sullivan, Robert G. Walker
  • Patent number: 9827435
    Abstract: An external defibrillator, such as a wearable defibrillator can have a heart rhythm detector to detect the heart rhythm of a patient. The defibrillator can also have a synchronous shock operating mode and an asynchronous shock operating mode. A controller can set the defibrillator in the synchronous shock operating mode or the asynchronous shock operating mode. The defibrillator can also include a shock module to cause the defibrillator to deliver shock therapy to the patient according to the operating mode of the defibrillator and a sync module configured to identify a first portion of the heart rhythm detected from a first ECG lead with which to time the delivery of the shock therapy to the patient when the operating mode of the defibrillator is in synchronous shock operating mode. A comparator module can compare timing of a QRS complex detected from the first ECG lead with the timing of the QRS complex detected by the second EGG lead.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 28, 2017
    Inventors: Robert G. Walker, Fred W. Chapman, Isabelle Banville
  • Patent number: 9801561
    Abstract: The system and method provide for electrocardiogram analysis and optimization of patient-customized cardiopulmonary resuscitation and therapy delivery. An external medical device includes a housing and a processor within the housing. The processor can be configured to receive an input signal for a patient receiving chest compressions and to select at least one filter mechanism and to apply the filter mechanism to the signal to at least substantially remove chest compression artifacts from the signal. A real time dynamic analysis of a cardiac rhythm is applied to adjust and integrate CPR prompting of a medical device. Real-time cardiac rhythm quality is facilitated using a rhythm assessment meter.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: October 31, 2017
    Assignee: Physio-Control, Inc.
    Inventors: Joseph L. Sullivan, Ronald Eugene Stickney, Robert G. Walker, Daniel Piraino, Isabelle Banville, Fred Chapman