1
Ralph E Kopacko, Zachary D Paul, Shari S Barnett: Respiratory mask. Respironics, Michael W Haas, October 22, 2002: US06467483 (253 worldwide citation)

A respiratory mask having a flexible, mask seal portion for engagement with the face of a user, a gel forehead cushion and a rotatable elbow coupling having integral exhaust ports. The mask seal portion has a thin section which permits the mask to more easily adapt to the contour of the face of the ...


2
Marcel D Jaffre, Zachary D Paul, Winslow K Duff, Michael Bobeck, Lance Busch: Exhaust port assembly for a pressure support system. Respironics, Michael W Haas, February 8, 2005: US06851425 (181 worldwide citation)

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 flo ...


3
Mark C Estes, John Fiore, Douglas M Mechlenburg, Heather Ressler, Jeff Kepler: Method and apparatus for providing positive airway pressure to a patient. RIC Investments, Michael W Haas, August 23, 2005: US06932084 (181 worldwide citation)

A system including methods and apparatus for treatment of a medical disorder such as obstructive sleep apnea or congestive heart failure. The system involves applying a gain to flow rate of pressurized gas delivered to a patient during inspiratory and/or expiratory phases of a respiratory cycle to d ...


4
Eugene N Scarberry, Ronald E White, Benedict R McElroy: Customizable seal, mask with customizable seal and method of using such a seal. Respironics, Michael W Haas, May 24, 2005: US06895965 (157 worldwide citation)

A seal and a mask having a seal adapted for confronting engagement with a surface of a user to form an interface therewith. The seal includes a first portion defined by a gel substance and a second portion associated with the first portion. The second portion includes a selectively formable substanc ...


5
Eugene N Scarberry, Ronald E White, Benedict R McElroy: Customizable seal, mask with customizable seal and method of using such a seal. Respironics, Michael W Haas, June 4, 2002: US06397847 (148 worldwide citation)

A seal and a mask having a seal adapted for confronting engagement with a surface of a user to form an interface therewith. The seal includes a first portion defined by a gel substance and a second portion associated with the first portion. The second portion includes a selectively formable substanc ...


6
Mehdi M Jafari, Gardner J Kimm, Karrie McGuigan: Medical ventilator triggering and cycling method and mechanism. Respironics, Michael W Haas, September 30, 2003: US06626175 (134 worldwide citation)

A medical ventilator system and method that triggers, cycles, or both based on patient effort, which is determined from cross-correlating patient flow and patient pressure. The medical ventilator is also controlled such that sensitivity to a patient initiated trigger increases as the expiratory phas ...


7
George Zonios, Vijay K Iyer, Uday S Shankar: Adaptive calibration for pulse oximetry. RIC Investments, Michael W Haas, January 4, 2005: US06839580 (130 worldwide citation)

A method for calibrating a pulse oximeter device and an apparatus incorporating the method and a system for utilizing the method. The method is based on modeling light propagation in tissue at two wavelengths, typically, one in the red and one in the infrared range of the spectrum. A formula is deri ...


8
Peter Ho, Marcel D Jaffre: Universal fitting headgear. RIC Investments, Michael W Haas, October 19, 2004: US06805117 (129 worldwide citation)

A universally fitting headgear that is readily adjustable to a variety of different sized patients and that couples a patient interface device to an airway of the patient. The headgear includes a headpiece that fits on the user's heal in a cap-like fashion. The circumference of the headpiece is ...


9
Shari S Barnett, Joseph M Miceli Jr: Low contact nasal mask and system using same. Respironics, Michael W Haas, July 2, 2002: US06412488 (128 worldwide citation)

A low contact nasal mask assembly that includes a seal member defined from a unitary piece of elastomeric material. The seal member defines a nose receiving cavity and has a first end portion and a second end portion generally opposite the first end portion. A first open is defined in the first end ...


10
Gregory Yurko: Automatic rise time adjustment for bi-level pressure support system. Respironics, Michael W Haas, March 18, 2003: US06532960 (126 worldwide citation)

An apparatus and method for a bi-level positive airway pressure support in which the rise time from the expiratory positive airway pressure to the inspiratory positive airway pressure is automatically controlled by the pressure support system. The pressure support system includes a sensor, a control ...