Control of delivery pressure in CPAP treatment or assisted respiration

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6253764
SERIAL NO

08851940

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A pressure control apparatus (10) for CPAP treatment or assisted respiration. The apparatus (10) includes an inlet chamber (20) for connection to a primary supply of air or other breathable gas at a pressure at or above a maximum treatment pressure, an outlet chamber (30) for communication with a mask (14) or the like, a diaphragm (32) for communication with a portion of the outlet chamber (30), means (22) to provide a predetermined force to the diaphragm (32), a first valve means (36) operable to open a flow path between the outlet chamber (30) and the inlet chamber (20) in response to deflection of the diaphragm (32) in a first direction and a second valve means (40) operable to provide an exhaust path from the outlet chamber (30) to atmosphere in response to deflection of the diaphragm (32) in a second direction opposite to the first direction. When the pressure of gas in the outlet chamber (30) produces a force on the diaphragm (32) below the predetermined force the force differential on the diaphragm (32) causes it to deflect in the first direction and cause the first valve means (36) to open and to cause an equilibrating flow of gas from the inlet chamber (20). When the pressure of gas in the outlet chamber (30) produces a force on the diaphragm (32) above the predetermined force the force differential on the diaphragm (32) causes it to deflect in the second direction and cause the second valve means (40) to open.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
RESMED LIMITEDBELLA VISTA NEW SOUTH WALES1083

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Calluaud, Michel Bayview, AU 11 859

Cited Art Landscape

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Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
KONINKLIJKE PHILIPS ELECTRONICS N V (1)
9901695 Respiratory interface apparatus 0 2011
 
GENERAL ELECTRIC COMPANY (7)
9259542 Respiratory monitoring with differential pressure transducer 0 2006
* 2008/0078,393 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS, DIFFERENTIAL PRESSURE TRANSDUCER, AND VENTILATOR 9 2006
* 2007/0125,380 RESPIRATORY MONITORING WITH DIFFERENTIAL PRESSURE TRANSDUCER 4 2006
* 2007/0113,856 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS 28 2006
* 2007/0113,847 RESPIRATORY MONITORING WITH CANNULA RECEIVING FIRST RESPIRATORY AIRFLOWS AND SECOND RESPIRATORY AIRFLOWS 10 2006
* 2007/0113,850 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS AND DIFFERENTIAL PRESSURE TRANSDUCER 24 2006
* 2007/0113,848 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS AND EXHALED GASES 5 2006
 
Other [Check patent profile for assignment information] (1)
* 2007/0199,566 Respiratory apparatus 82 2007
 
ALYN WOLDENBERG FAMILY HOSPITAL (3)
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7036506 Flow diverter for controlling the pressure and flow rate in CPAP device 10 2005
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* Cited By Examiner