Patents by Inventor John R. DelFavero
John R. DelFavero 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).
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Patent number: 8251914Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath is a spontaneous breath or a ventilator-induced breath and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: GrantFiled: December 23, 2009Date of Patent: August 28, 2012Assignee: RIC Investments, LLCInventors: Rich H. Daniels, John R. Delfavero, Barry J. Feldman, Paul B. Gunneson, Michael B. Jaffe, Eric P. Wigforss
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Patent number: 8108173Abstract: A sensor that determines information related to a gaseous analyte in a body of fluid. The sensor comprises an emitter, a luminescable medium, a radiation sensor, and a processor. The emitter emits electromagnetic radiation having an oscillating intensity. The luminescable medium communicates with the body of fluid and emits luminescent radiation in response to the received electromagnetic radiation. The radiation sensor receives the luminescent radiation, and generates an output signal based on the intensity of the received luminescent radiation. The processor samples the output signal generated by the radiation sensor at two or more predetermined periodic points over the oscillation of the intensity of the electromagnetic radiation to determine information from the samples related to a phase difference between the oscillation of the intensity of the electromagnetic radiation emitted by the emitter and oscillation of the intensity of the luminescent radiation received by the radiation sensor.Type: GrantFiled: August 19, 2008Date of Patent: January 31, 2012Assignee: RIC Investments, LLCInventors: Jesus D. Martin, John R. DelFavero
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Patent number: 7991448Abstract: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same that includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Up to three candidate frequencies may be filtered and various parameters associated with each candidate frequency are calculated. A pulse-estimate input may also be accepted from an external source. The best frequency, if one exists, is determined by arbitrating the candidate frequencies and the pulse-estimate input using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SpO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO2 may be used.Type: GrantFiled: April 21, 2006Date of Patent: August 2, 2011Assignee: Philips Electronics North America CorporationInventors: Reuben W. Edgar, Jr., August J. Allo, Jr., Paul B. Gunneson, Jesus D. Martin, John R. DelFavero, Michael B. Jaffe
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Publication number: 20100318309Abstract: A sensor that determines information related to a gaseous analyte in a body of fluid. The sensor comprises an emitter, a luminescable medium, a radiation sensor, and a processor. The emitter emits electromagnetic radiation having an oscillating intensity. The luminescable medium communicates with the body of fluid and emits luminescent radiation in response to the received electromagnetic radiation. The radiation sensor receives the luminescent radiation, and generates an output signal based on the intensity of the received luminescent radiation. The processor samples the output signal generated by the radiation sensor at two or more predetermined periodic points over the oscillation of the intensity of the electromagnetic radiation to determine information from the samples related to a phase difference between the oscillation of the intensity of the electromagnetic radiation emitted by the emitter and oscillation of the intensity of the luminescent radiation received by the radiation sensor.Type: ApplicationFiled: August 19, 2008Publication date: December 16, 2010Inventors: Jesus D. Martin, John R. DelFavero
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Publication number: 20100097380Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath is a spontaneous breath or a ventilator-induced breath and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: ApplicationFiled: December 23, 2009Publication date: April 22, 2010Applicant: RIC INVESTMENTS, LLCInventors: RICH H. DANIELS, JOHN R. DELFAVERO, BARRY J. FELDMAN, PAUL B. GUNNESON, MICHAEL B. JAFFE, ERIC P. WIGFORSS
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Patent number: 7662106Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath is a spontaneous breath or a ventilator-induced breath and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: GrantFiled: October 15, 2002Date of Patent: February 16, 2010Assignee: Ric Investments, LLC.Inventors: Rich H. Daniels, John R. DelFavero, Barry J. Feldman, Paul B. Gunneson, Michael B. Jaffe, Eric P. Wigforss
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Patent number: 7432508Abstract: A gas measurement system of this invention includes a detector assembly having a beamsplitter adapted to separate infrared radiation into a first beam and a second beam and a mirror adapted to receive the first beam from the beamsplitter. The first and second beams are directed to first and second detectors that are disposed in a common plane. In one embodiment, the optical elements are provided on or in an optical block. In another embodiment, the gas measurement system includes a housing that contains an infrared absorption gas measurement assembly, a luminescence quenching gas measurement assembly, and a processor that is programmed to measure gas constituents of a gas flow based on an output of the infrared absorption gas measurement assembly and the luminescence quenching gas measurement assembly.Type: GrantFiled: June 24, 2005Date of Patent: October 7, 2008Assignee: RIC Investments, LLCInventors: Rich H. Daniels, Richard Nelson, John R. DelFavero, Raymond G. Davis, Anthony T. Pierry, James T. Russell
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Patent number: 7291851Abstract: A method of modulating an infrared radiation (IR) source that includes applying a time-varying, periodic voltage signal to the IR source, measuring a parameter of the voltage signal, and adjusting the voltage signal to maintain a substantially constant delivered power to the IR source. Adjusting the voltage signal is done based on the measured parameter and a predetermined relationship between the measured parameter of the voltage pulse and a resistance of such an infrared radiation source. Alternatively, the method includes applying a the voltage pulse, measuring a first parameter of the voltage pulse and a second parameter of a current passing through the infrared radiation source resulting from the applying step, and adjusting the voltage pulse to maintain a substantially constant delivered power to the infrared radiation source based on the first parameter and the second parameter.Type: GrantFiled: June 10, 2005Date of Patent: November 6, 2007Assignee: RIC Investments, LLCInventors: John R DelFavero, Anthony T Pierry
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Patent number: 7072702Abstract: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Each of the up to three candidate frequencies may be filtered and various parameters associated with each of the up to three candidate frequencies are calculated. The best frequency, if one exists, is determined by arbitrating the candidate frequencies using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SPO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO2 may be used.Type: GrantFiled: June 22, 2004Date of Patent: July 4, 2006Assignee: RIC Investments, LLCInventors: Reuben W. Edgar, Jr., August J. Allo, Jr., Paul B. Gunneson, Jesus D. Martin, John R. DelFavero, Michael B. Jaffe
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Patent number: 6810277Abstract: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Each of the up to three candidate frequencies may be filtered and various parameters associated with each of the up to three candidate frequencies are calculated. The best frequency, if one exists, is determined by arbitrating the candidate frequencies using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SpO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO2 may be used.Type: GrantFiled: August 6, 2002Date of Patent: October 26, 2004Assignee: RIC Investments, Inc.Inventors: Reuben W. Edgar, Jr., August J. Allo, Jr., Paul B. Gunneson, Jesus D. Martin, John R. DelFavero, Michael B. Jaffe
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Publication number: 20030045807Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath is a spontaneous breath or a ventilator-induced breath and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: ApplicationFiled: October 15, 2002Publication date: March 6, 2003Inventors: Rich Daniels, John R. DelFavero, Barry J. Feldman, Paul B. Gunneson, Michael B. Jaffe, Eric P. Wigforss
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Patent number: 6519486Abstract: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Each of the up to three candidate frequencies may be filtered and various parameters associated with each of the up to three candidate frequencies are calculated. The best frequency, if one exists, is determined by arbitrating the candidate frequencies using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SpO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and Spo2 may be used.Type: GrantFiled: April 10, 2000Date of Patent: February 11, 2003Assignee: NTC Technology Inc.Inventors: Reuben W. Edgar, Jr., August J. Allo, Jr., Paul B. Gunneson, Jesus D. Martin, John R. DelFavero, Michael B. Jaffe
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Publication number: 20030009091Abstract: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Each of the up to three candidate frequencies may be filtered and various parameters associated with each of the up to three candidate frequencies are calculated. The best frequency, if one exists, is determined by arbitrating the candidate frequencies using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SpO2 may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO2 may be used.Type: ApplicationFiled: August 6, 2002Publication date: January 9, 2003Inventors: Reuben W. Edgar, August J. Allo, Paul B. Gunneson, Jesus D. Martin, John R. DelFavero, Michael B. Jaffe
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Patent number: 6471658Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath is a spontaneous breath or a ventilator-induced breath and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: GrantFiled: December 8, 2000Date of Patent: October 29, 2002Assignee: NTC Technology, Inc.Inventors: Rich H Daniels, John R. DelFavero, Barry J. Feldman, Paul B. Gunneson, Michael B. Jaffe, Eric P. Wigforss
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Patent number: 6393311Abstract: A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine dominant frequency components. The frequency component which represents at least one bodily parameter of interest is selected for further processing. The segment of data is subdivided into subsegments, each subsegment representing one heartbeat. The subsegments are used to calculate a modified average pulse as a candidate output pulse.Type: GrantFiled: October 1, 1999Date of Patent: May 21, 2002Assignee: NTC Technology Inc.Inventors: Reuben W. Edgar, Jr., August J. Allo, Jr., Jesus D. Martin, John R. DelFavero, Michael B. Jaffe
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Patent number: 6179784Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath, is a spontaneous breath or a ventilator-induced breath, and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: GrantFiled: June 16, 1999Date of Patent: January 30, 2001Assignee: NTC Technology Inc.Inventors: Rich H. Daniels, John R. DelFavero, Barry J. Feldman, Paul B. Gunneson, Michael B. Jaffe, Eric P. Wigforss
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Patent number: 6099481Abstract: A method of sampling one or more respiratory profile characteristics and monitoring a variety of respiratory profile parameters. The sampled respiratory characteristics include respiratory flow rate, respiratory pressure, and partial pressure of at least one constituent of a patient's respiration. The method detects patient breaths, determines whether each breath is a spontaneous breath or a ventilator-induced breath, and calculates various respiratory profile parameters based on the sampled measurements. The method displays the respiratory profile parameters in graphic and numeric forms. Preferably, the method allows a user to select the displayed respiratory profile parameters.Type: GrantFiled: November 3, 1997Date of Patent: August 8, 2000Assignee: NTC Technology, Inc.Inventors: Rich H. Daniels, John R. DelFavero, Barry J. Feldman, Paul B. Gunneson, Michael B. Jaffe, Eric P. Wigforss