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 WALES1014

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Calluaud, Michel Bayview, AU 11 765

Cited Art Landscape

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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
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 8 2006
* 2007/0125,380 RESPIRATORY MONITORING WITH DIFFERENTIAL PRESSURE TRANSDUCER 4 2006
* 2007/0113,856 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS 25 2006
* 2007/0113,847 RESPIRATORY MONITORING WITH CANNULA RECEIVING FIRST RESPIRATORY AIRFLOWS AND SECOND RESPIRATORY AIRFLOWS 8 2006
* 2007/0113,850 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS AND DIFFERENTIAL PRESSURE TRANSDUCER 22 2006
* 2007/0113,848 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS AND EXHALED GASES 4 2006
 
Other [Check patent profile for assignment information] (1)
* 2007/0199,566 Respiratory apparatus 67 2007
 
RIC INVESTMENTS, LLC. (4)
* 7793660 Method of treating obstructive sleep apnea 12 2005
* 2005/0234,364 Pressure support compliance monitoring system 1 2005
8365731 Pressure reducing valve with flexible cuff 1 2008
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ALYN WOLDENBERG FAMILY HOSPITAL (3)
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3M INNOVATIVE PROPERTIES COMPANY (1)
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ACOBA, LLC (3)
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8408200 Flow resistance modulated aerosolized active agent delivery 20 1999
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NEXT LIFE MEDICAL CORPORATION (3)
7721735 Portable gas powered positive pressure breathing apparatus and method 22 2006
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NOVARTIS PHARMA AG (2)
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FSP INSTRUMENTS, LLC (1)
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RESMED LIMITED (12)
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* 2003/0127,096 Flow diverter for controlling the pressure and flow rate in a CPAP device 3 2002
6895964 Flow diverter for controlling the pressure and flow rate in a CPAP device 32 2004
7036506 Flow diverter for controlling the pressure and flow rate in CPAP device 8 2005
7527055 Flow diverter for controlling the pressure and flow rate in CPAP device 11 2006
* 2006/0144,402 Flow diverter for controlling the pressure and flow rate in CPAP device 2 2006
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* 2010/0043,796 SYSTEMS FOR REDUCING EXHALATION PRESSURE IN A MASK SYSTEM 11 2007
7694679 Flow diverter for controlling the pressure and flow rate in CPAP device 1 2008
* 2008/0210,237 Flow diverter for controlling the pressure and flow rate in CPAP device 3 2008
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INVACARE CORPORATION (11)
6990980 Carbon dioxide-based Bi-level CPAP control 45 2001
* 2002/0104,536 Carbon dioxide-based Bi-level CPAP Control 2 2001
7152598 System and method for providing a breathing gas 64 2003
* 2004/0255,943 System and method for providing a breathing gas 17 2003
7621270 System and method for providing a breathing gas 14 2005
* 2005/0268,913 System and method for providing a breathing gas 9 2005
8640701 Carbon dioxide-based bi-level CPAP control 0 2005
* 2005/0279,358 Carbon dioxide-based bi-level CPAP control 30 2005
* 2008/0251,079 APPARATUS AND METHOD FOR PROVIDING POSITIVE AIRWAY PRESSURE 45 2008
8261742 Method and apparatus for adjusting desired pressure in positive airway pressure devices 3 2008
8066004 System and method for providing a breathing gas 22 2009
 
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SENSORMEDICS CORPORATION (1)
6766800 Pressure regulating valve for use in continuous positive airway pressure devices 97 2002
 
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* 2012/0036,622 PROTECTIVE SUIT FOR AN INDIVIDUAL AND RELATED ASSEMBLY 1 2010
 
INTERSURGICAL AG (2)
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* 2005/0034,726 Exhalation valves 9 2004
* Cited By Examiner