Patents by Inventor Charles E. Porges
Charles E. Porges 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: 9414769Abstract: The present disclosure relates, in some embodiments, to devices, systems, and/or methods for collecting, processing, and/or displaying stroke volume and/or cardiac output data. For example, a device for assessing changes in cardiac output and/or stroke volume of a subject receiving airway support may comprise a processor; an airway sensor in communication with the processor, wherein the airway sensor is configured and arranged to sense pressure in the subject's airway, lungs, and/or intrapleural space over time; a blood volume sensor in communication with the processor, wherein the blood volume sensor is configured and arranged to sense pulsatile volume of blood in a tissue of the subject over time; and a display configured and arranged to display a representative of an airway pressure, a pulsatile blood volume, a photoplethysmogram, a photoplethysmogram ratio, the determined cardiac output and/or stroke volume, or combinations thereof.Type: GrantFiled: August 20, 2013Date of Patent: August 16, 2016Assignee: COVIDIEN LPInventors: Edward Karst, Joseph Douglas Vandine, Charles E. Porges, Clark R. Baker, Jr.
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Patent number: 8915249Abstract: A system and method for conserving oxygen in a breathing assistance device are disclosed. A method may include delivering breathable gas with a first average oxygen concentration during a first portion of an inhalation phase for a patient. The method may also include delivering breathable gas with a second average oxygen concentration during a second portion of an inhalation phase for a patient.Type: GrantFiled: August 28, 2009Date of Patent: December 23, 2014Assignee: Chart Inc.Inventors: Charles E. Porges, Joseph Douglas Vandine
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Patent number: 8818474Abstract: A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A memory associated with the sensor stores both data relating to the sensor and a digital signature. The digital signature authenticates the quality of the code by ensuring it was generated by an entity having predetermined quality controls, and ensure the code is accurate.Type: GrantFiled: May 25, 2012Date of Patent: August 26, 2014Assignee: Covidien LPInventors: Thomas A. Berson, Bryan Olson, Paul D. Mannheimer, Charles E. Porges, David Schloemer
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Patent number: 8813750Abstract: There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort.Type: GrantFiled: August 19, 2010Date of Patent: August 26, 2014Assignee: Covidien LPInventors: Michael P. O'Neil, Joel C. Colburn, Gary L. Crumback, Charles E. Porges, Alfred Chung, David Hyde
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Publication number: 20130338514Abstract: The present disclosure relates, in some embodiments, to devices, systems, and/or methods for collecting, processing, and/or displaying stroke volume and/or cardiac output data. For example, a device for assessing changes in cardiac output and/or stroke volume of a subject receiving airway support may comprise a processor; an airway sensor in communication with the processor, wherein the airway sensor is configured and arranged to sense pressure in the subject's airway, lungs, and/or intrapleural space over time; a blood volume sensor in communication with the processor, wherein the blood volume sensor is configured and arranged to sense pulsatile volume of blood in a tissue of the subject over time; and a display configured and arranged to display a representative of an airway pressure, a pulsatile blood volume, a photoplethysmogram, a photoplethysmogram ratio, the determined cardiac output and/or stroke volume, or combinations thereof.Type: ApplicationFiled: August 20, 2013Publication date: December 19, 2013Applicant: COVIDIEN LPInventors: Edward Karst, Joseph Douglas Vandine, Charles E. Porges, Clark R. Baker, Jr.
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Patent number: 8551006Abstract: The present disclosure relates, in some embodiments, to devices, systems, and/or methods for collecting, processing, and/or displaying stroke volume and/or cardiac output data. For example, a device for assessing changes in cardiac output and/or stroke volume of a subject receiving airway support may comprise a processor; an airway sensor in communication with the processor, wherein the airway sensor is configured and arranged to sense pressure in the subject's airway, lungs, and/or intrapleural space over time; a blood volume sensor in communication with the processor, wherein the blood volume sensor is configured and arranged to sense pulsatile volume of blood in a tissue of the subject over time; and a display configured and arranged to display a representative of an airway pressure, a pulsatile blood volume, a photoplethysmogram, a photoplethysmogram ratio, the determined cardiac output and/or stroke volume, or combinations thereof.Type: GrantFiled: September 17, 2009Date of Patent: October 8, 2013Assignee: Covidien LPInventors: Edward Karst, Joseph Douglas Vandine, Charles E. Porges, Clark Raymond Baker, Jr.
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Publication number: 20130245408Abstract: Embodiments disclosed herein may include a medical device and a method for powering a medical device are disclosed. The medical device may be able to operate independent of a plug-in and a wall socket as a power source by way of a manual power source. Additionally, shock resistant components are described which may protect the medical device from damage typically encountered during manually powering and using the pulse oximeter in areas where traditional power sources such as a wall outlet are unavailable.Type: ApplicationFiled: April 29, 2013Publication date: September 19, 2013Applicant: Covidien LPInventor: Charles E. PORGES
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Patent number: 8413659Abstract: There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort.Type: GrantFiled: August 3, 2010Date of Patent: April 9, 2013Assignee: Covidien LPInventors: Gary L. Crumback, Charles E. Porges, Alfred Chung, David Hyde
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Patent number: 8342177Abstract: An apparatus for providing humidification in a breathing assistance system may include a first container at least partially defining a first volume for housing an absorbent material, a second container at least partially defining a second volume for holding a liquid, and one or more fluid passageways for communicating the liquid from the second volume to the absorbent material in the first volume.Type: GrantFiled: September 23, 2009Date of Patent: January 1, 2013Assignee: Covidien LPInventor: Charles E. Porges
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Patent number: 8322339Abstract: A breathing assistance system with functionality for detecting the existence of a fault condition may include a pressure detector, a flow detector and a fault detection system. The pressure detector may take pressure measurements, each measurement including a measurement of a gas flow rate in the breathing assistance system. The flow detector may take flow rate measurements, each flow rate measurement including a measurement of has flow rate in the breathing assistance system. The fault detection system may process the pressure measurements and/or flow rate measurements to determine the existence of a fault condition associated with the breathing assistance system.Type: GrantFiled: September 1, 2006Date of Patent: December 4, 2012Assignee: Nellcor Puritan Bennett LLCInventors: Kelly S. Gottlib, Philip K. Snyder, Michael J. Fullmer, Charles E. Porges, Bonny Setzer
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Publication number: 20120237022Abstract: A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A memory associated with the sensor stores both data relating to the sensor and a digital signature. The digital signature authenticates the quality of the code by ensuring it was generated by an entity having predetermined quality controls, and ensure the code is accurate.Type: ApplicationFiled: May 25, 2012Publication date: September 20, 2012Applicant: TYCO HEALTHCARE GROUP LPInventors: Thomas A. Berson, Bryan Olson, Michael E. Fein, Paul D. Mannheimer, Charles E. Porges, David Schloemer
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Patent number: 8224412Abstract: A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple sets of coefficients are stored. The multiple sets apply to different ranges of saturation values to provide a better fit to occur by breaking the R to SpO2 relationship up into different pieces, each described by a different function. The different functions can also be according to different formulas for determining oxygen saturation.Type: GrantFiled: January 12, 2010Date of Patent: July 17, 2012Assignee: Nellcor Puritan Bennett LLCInventors: Paul D. Mannheimer, Michael E. Fein, Marcia Fein, legal representative, Charles E. Porges
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Patent number: 8190226Abstract: A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A memory associated with the sensor stores both data relating to the sensor and a digital signature. The digital signature authenticates the quality of the code by ensuring it was generated by an entity having predetermined quality controls, and ensure the code is accurate.Type: GrantFiled: May 6, 2008Date of Patent: May 29, 2012Assignee: Tyco Healthcare Group LPInventors: Thomas A. Berson, Bryan Olson, Michael E. Fein, Paul D. Mannheimer, Charles E. Porges, David Schloemer
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Publication number: 20120053431Abstract: A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple sets of coefficients are stored. The multiple sets apply to different ranges of saturation values to provide a better fit to occur by breaking the R to SpO2 relationship up into different pieces, each described by a different function. The different functions can also be according to different formulas for determining oxygen saturation.Type: ApplicationFiled: November 9, 2011Publication date: March 1, 2012Applicant: Nellcor Puritan Bennett LLCInventors: Paul D. Mannheimer, Michael E. Fein, Charles E. Porges, Marcia Fein
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Publication number: 20120017909Abstract: A system and method for conserving oxygen in a breathing assistance device are disclosed. A method may include delivering breathable gas with a first average oxygen concentration during a first portion of an inhalation phase for a patient. The method may also include delivering breathable gas with a second average oxygen concentration during a second portion of an inhalation phase for a patient.Type: ApplicationFiled: August 28, 2009Publication date: January 26, 2012Inventors: Charles E. Porges, Joseph Douglas Vandine
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Patent number: 8078246Abstract: A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple sets of coefficients are stored. The multiple sets apply to different ranges of saturation values to provide a better fit to occur by breaking the R to SpO2 relationship up into different pieces, each described by a different function. The different functions can also be according to different formulas for determining oxygen saturation.Type: GrantFiled: September 30, 2005Date of Patent: December 13, 2011Assignee: Nellcor Puritan Bennett LLCInventors: Paul D. Mannheimer, Michael E. Fein, Marcia Fein, legal representative, Charles E. Porges
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Publication number: 20100313894Abstract: There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort.Type: ApplicationFiled: August 3, 2010Publication date: December 16, 2010Applicant: Nellcor Puritan Bennett LLCInventors: Gary L. Crumback, Charles E. Porges, Alfred Chung, David Hyde
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Publication number: 20100313895Abstract: There is disclosed an endotracheal tube which has a minimal cross-sectional profile for easy viewing of anatomical features during intubation. After the tube is placed into the trachea, the tube is adapted to increase the diameter. In this manner the tube diameter may be expanded to allow for decreased Work of Breathing (WOB) for patient, while not having so large a diameter as to cause tracheal discomfort.Type: ApplicationFiled: August 19, 2010Publication date: December 16, 2010Applicant: Nellcor Puritan Bennett LLCInventors: Michael P. O'Neil, Joel C. Colburn, Gary L. Crumback, Charles E. Porges, Alfred Chung, David Hyde
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Publication number: 20100113903Abstract: A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple sets of coefficients are stored. The multiple sets apply to different ranges of saturation values to provide a better fit to occur by breaking the R to SpO2 relationship up into different pieces, each described by a different function. The different functions can also be according to different formulas for determining oxygen saturation.Type: ApplicationFiled: January 12, 2010Publication date: May 6, 2010Applicant: NELLCOR PURITAN BENNETT INCORPORATEDInventors: Paul D. Mannheimer, Michael E. Fein, Charles E. Porges
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Patent number: 7689259Abstract: A memory in a sensor is used to store multiple coefficients for a physiological parameter. In one embodiment, not only are the sensor's specific calibration coefficients stored in a memory in the sensor for the formula to determine oxygen saturation, but multiple sets of coefficients are stored. The multiple sets apply to different ranges of saturation values to provide a better fit to occur by breaking the R to SpO2 relationship up into different pieces, each described by a different function. The different functions can also be according to different formulas for determining oxygen saturation.Type: GrantFiled: March 10, 2004Date of Patent: March 30, 2010Assignee: Nellcor Puritan Bennett LLCInventors: Paul D. Mannheimer, Michael E. Fein, Marcia Fein, legal representative, Charles E. Porges