Patents by Inventor Winslow Duff
Winslow Duff 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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Publication number: 20080041383Abstract: A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP based on the occurrence of any one of these conditions.Type: ApplicationFiled: October 25, 2007Publication date: February 21, 2008Inventors: Greg Matthews, Winslow Duff, Daniel Martin, Uday Shankar, Heather Ressler
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Publication number: 20080041382Abstract: A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP based on the occurrence of any one of these conditions.Type: ApplicationFiled: October 25, 2007Publication date: February 21, 2008Applicant: RIC Investments, LLC.Inventors: Greg Matthews, Winslow Duff, Daniel Martin, Uday Shankar, Heather Ressler
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Publication number: 20070209662Abstract: A medical device, such as pressure support system, and a method of communicating with such a device using an information storage device. The information storage device, in one embodiment, is adapted to be provided in a slot in the medical device so that information for controlling the operating of the pressure support device can be read from the information storage device, information regarding the usage and/or operation of the pressure support device can be written to the information storage device, or both operations can be performed.Type: ApplicationFiled: April 30, 2007Publication date: September 13, 2007Applicant: RIC Investments, LLCInventors: Kevin Bowen, Daniel Jonczak, Gregory Yurko, Douglas Mechlenburg, Winslow Duff, Mark D'Angelo
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Publication number: 20070157928Abstract: A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.Type: ApplicationFiled: March 5, 2007Publication date: July 12, 2007Applicant: RIC Investments, LLCInventors: J. Pujol, Patrick Truitt, Daniel Martin, Winslow Duff, Steven Kimmel, Jeffery Keppler, Peter Ho, Lance Busch, Jerome Matula, Drew Demangone, Anthony Bafile
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Publication number: 20070132117Abstract: A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.Type: ApplicationFiled: September 26, 2006Publication date: June 14, 2007Applicant: RIC Investments, LLC.Inventors: J. Pujol, Patrick Truitt, Daniel Martin, Winslow Duff, Steven Kimmel, Jeffery Kepler
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Publication number: 20060130835Abstract: A pressure generating system and method for generating a flow of fluid at a pressure above atmospheric pressure. The system includes a pressure generator and a valve that controls the pressure/flow of gas delivered to the patient. The system monitors energy provided to the valve, a characteristics associated with movement of the valve, a position of the valve, or any combination thereof. In addition, the controller controls an operating speed of the pressure generator such that the valve operates over a majority of the range of positions during use of the pressure support system.Type: ApplicationFiled: January 6, 2006Publication date: June 22, 2006Applicant: RIC Investments, LLCInventors: William Truschel, Winslow Duff, Michael Kane, Andrew Shissler
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Publication number: 20060107953Abstract: A pressure support system has a motor, a switching element that supplies power to motor windings, and a blower coupled to the motor. Rotation of the blower elevates a pressure of fluid in a patient circuit coupled to an outlet of the blower. A rotational speed controller maintains the motor at a set rotational speed corresponding to a selected pressure for the fluid in the patient circuit. The rotational speed of the motor is maintained by a switching signal provided by a rotational speed controller to the switching element to control the actuation of the switching element. A fluid parameter monitoring portion monitors a parameter associated with the flow of fluid in the patient circuit, such as the magnitude, direction, or volume, based on a characteristic, such as duty cycle, of the switching signal, or based on a characteristic of a control signal that is used to generate the switching signal.Type: ApplicationFiled: September 23, 2005Publication date: May 25, 2006Applicant: RIC Investments, Inc.Inventors: William Truschel, Patrick Truitt, Winslow Duff
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Publication number: 20060070624Abstract: A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. In a further embodiment, the system determines an apnea detection time (Tapnea) as Tinsp plus a constant, and delivers a machine triggered breath if an amount since the start of inspiration reaches Tapnea. Yet another embodiment, monitors the characteristic during an inspiratory phase of a respiratory cycle, and controls the flow of gas during the inspiratory phase of the respiratory cycle based on a result of this comparison.Type: ApplicationFiled: September 26, 2005Publication date: April 6, 2006Applicant: RIC Investments, LLCInventors: Michael Kane, Susan Bann, Rochelle Siirola, Winslow Duff, Leonardo Baloa
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Publication number: 20060000475Abstract: A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP independently based on the occurrence of any one of these conditions.Type: ApplicationFiled: September 1, 2005Publication date: January 5, 2006Applicant: RIC Investments, LLC.Inventors: Greg Matthews, Winslow Duff, Daniel Martin, Uday Shankar, Heater Ressler
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Publication number: 20050126573Abstract: An exhaust port assembly comprising a conduit carries a flow of gas. A vent assembly having a fixed exhaust area is provided on the conduit for venting a flow of exhaust gas from within the conduit to ambient atmosphere. The vent assembly is configured so as to minimize noise associated with the flow of exhaust gas passing to atmosphere, diffuse the flow of exhaust gas passing to ambient atmosphere over a relatively large area, and minimize the area occupied by the venting assembly on the conduit.Type: ApplicationFiled: February 4, 2005Publication date: June 16, 2005Applicant: Respironics, Inc.Inventors: Marcel Jaffre, Zachary Paul, Winslow Duff, Michael Bobeck, Lance Busch