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

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
RESMED LIMITEDBELLA VISTA NEW SOUTH WALES984

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Calluaud, Michel Bayview, AU 11 741

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (1)
5231983 Method of and apparatus for the aerosol administration of medication 184 1991
 
Other [Check patent profile for assignment information] (30)
4381788 Method and apparatus for detecting apnea 70 1981
4387722 Respiration monitor and x-ray triggering apparatus 107 1981
4433693 Method and assembly for monitoring respiration and detecting apnea 83 1981
4396034 Arcuate swing check valve 50 1981
4738266 Apnoea monitor 83 1983
4550615 Fluid flowmeter 40 1983
4530334 Air flow metering 35 1983
4584996 Apparatus for conservative supplemental oxygen therapy 85 1984
4612928 Method and apparatus for supplying a gas to a body 79 1984
4971065 Transducer for detecting apnea 83 1985
4630614 Apnea monitoring apparatus 105 1985
4660555 Oxygen delivery and administration system 215 1985
4777963 Respiration monitor 75 1987
4838257 Ventilator 113 1987
4823788 Demand oxygen controller and respiratory monitor 135 1988
5052400 Method and apparatus for using an inhalation sensor for monitoring and for inhalation therapy 92 1988
4844085 Pulmonary pressure and volume measurement 43 1988
5048515 Respiratory gas supply apparatus and method 96 1988
4856506 Apparatus for mouth-to-mouth resuscitation 33 1989
5024219 Apparatus for inhalation therapy using triggered dose oxygenator employing an optoelectronic inhalation sensor 110 1989
4960118 Method and apparatus for measuring respiratory flow 117 1989
5178138 Drug delivery device 232 1990
5046491 Apparatus and method for respired gas collection and analysis 224 1990
5230330 Resuscitation and inhalation device 40 1991
5271391 Apparatus for delivering a continuous positive airway pressure to an infant 167 1991
5255687 Zero dead space respiratory exercise valve 68 1992
5360008 Respiratory and cardiac monitor 46 1992
5388571 Positive-pressure ventilator system with controlled access for nebulizer component servicing 219 1992
5567127 Low noise air blower 58 1994
5605151 Method for the diagnosis of sleep apnea 156 1995
 
DRÄGER MEDICAL GMBH (1)
5647351 Ventilating system for supplying a patient with respiratory gas and method for triggering the respiratory phases in said system 83 1995
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
5479920 Breath actuated medicinal aerosol delivery apparatus 306 1994
 
SHERWOOD SERVICES AG (1)
5170798 Pulmonary function tester 44 1991
 
Societe Anonyme Drager (1)
4825802 Pheumatic alarm for respirator 61 1987
 
University Technologies International, Inc. (1)
5645053 Auto CPAP system and method for preventing patient disturbance using airflow profile information 256 1993
 
MCEWEN, JAMES A. (1)
4550726 Method and apparatus for detection of breathing gas interruptions 107 1982
 
Pentagon Technologies Group, Inc. (1)
5526805 In-line silencer for clean room breathing apparatus 35 1993
 
MEDEX CARDIO-PULMONARY, INC. (1)
4501273 Endotracheal tube with pressure controlled inflatable cuff 44 1982
 
PETERSON, CONRAD S. (1)
5069222 Respiration sensor set 78 1990
 
Vital Signals, Inc. (1)
4972842 Method and apparatus for precision monitoring of infants on assisted ventilation 145 1988
 
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (1)
4827922 Process and device for supplying respiratory oxygen 79 1988
 
VOTRAN MEDICAL TECHNOLOGY, INC., A CORP. OF CA (1)
5322057 Intermittent signal actuated nebulizer synchronized to operate in the exhalation phase, and its method of use 245 1991
 
RESMED LIMITED (5)
4944310 Device for treating snoring sickness 415 1988
5199424 Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled 282 1991
5245995 Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea 437 1992
5704345 Detection of apnea and obstruction of the airway in the respiratory system 370 1994
5522382 Device and method for treating obstructed breathing having a delay/ramp feature 233 1995
 
DOWNS, JOHN B. (1)
4773411 Method and apparatus for ventilatory therapy 112 1986
 
AKAMAI TECHNOLOGIES, INC. (1)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 73 2009
 
ILLSLEY, DAVID W. (1)
4579114 Mouth to mouth resuscitation device 46 1983
 
YAMAHA CORPORATION (1)
2003/0023,649 Digital filtering method and device and sound image localizing device 5 2002
 
MINE SAFETY APPLIANCES COMPANY (2)
4595016 APNEA monitor 49 1985
4827964 System for metering of breathing gas for accommodation of breathing demand 33 1987
 
UNI-CATH INC. (1)
5042470 Ventilating system for respiration of a patient 53 1989
 
THERMO KING CORPORATION (1)
5927090 Condenser and radiator air outlets 23 1997
 
INFLUENCE, INC. (1)
5549555 Balloon catheter 13 1995
 
SYNTHELABO, 58 RUE DE LA GLACIERE, 75013 PARIS, FRANCE, ALAIN AZEMA A CORP. OF FRANCE (1)
4537190 Process and device for controlling artificial respiration 54 1982
 
Sensormedics Corporation (1)
4448058 Respiratory gas analysis instrument having improved volume calibration method and apparatus 70 1982
 
NELLCOR, INCORPORATED (1)
5588439 Acoustic impulse respirometer and method 59 1995
 
Dwyer Instruments, Inc. (1)
5183983 Flow switch assembly for fluid flow monitoring 49 1992
 
ADOBE SOFTWARE TRADING COMPANY LIMITED (1)
7917494 System and method for a log-based data storage 12 2008
 
EMBLA SYSTEMS, INC. (2)
5161541 Flow sensor system 53 1991
5558099 Flow sensor system 41 1995
 
BAUMAN, PAUL S. (1)
5067487 Resuscitator 31 1989
 
DRIBMED, LTD. (1)
4957107 Gas delivery means 212 1988
 
MIRIS MEDICAL INCORPORATED, A CORP. OF CA (1)
5404871 Delivery of aerosol medications for inspiration 370 1991
 
NELLCOR PURITAN BENNETT INCORPORATED (2)
4580575 Apnea monitoring system 69 1984
5715812 Compliance meter for respiratory therapy 237 1996
 
RIC INVESTMENTS, LLC. (16)
4913401 Valve apparatus 69 1989
5002050 Medical gas flow control valve, system and method 68 1989
5117819 Nasal positive pressure device 197 1990
5190048 Thermistor airflow sensor assembly 54 1991
5239995 Sleep apnea treatment apparatus 186 1991
5343878 Pressure application method 171 1993
5394882 Physiological monitoring system 168 1993
5492113 Sleep apnea treatment apparatus having multiple ramp cycles 98 1993
5551418 Sleep apnea treatment apparatus with reset circuitry 108 1993
5413111 Bead thermistor airflow sensor assembly 52 1993
5535738 Method and apparatus for providing proportional positive airway pressure to treat sleep disordered breathing 219 1994
RE35295 Sleep apnea treatment apparatus 74 1994
5540219 Sleep apnea treatment apparatus 93 1995
5537997 Sleep apnea treatment apparatus and passive humidifier for use therewith 140 1995
5682878 Start-up ramp system for CPAP system with multiple ramp shape selection 116 1995
5655522 Sleep apnea treatment apparatus and passive humidifier for use therewith 77 1996
 
RIC INVESTMENTS, INC. (4)
5148802 Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders 321 1989
5313937 Leak compensation method and apparatus for a breathing system 167 1992
5433193 Breathing gas delivery method and apparatus 172 1992
5632269 Breathing gas delivery method and apparatus 152 1994
 
NELLCOR PURITAN BENNETT LLC (7)
5134995 Inspiratory airway pressure system with admittance determining apparatus and method 251 1990
5231979 Humidifier for CPAP device 112 1992
5259373 Inspiratory airway pressure system controlled by the detection and analysis of patient airway sounds 193 1992
5517983 Compliance meter for respiratory therapy 231 1992
5438980 Inhalation/exhalation respiratory phase detection circuit 206 1993
5443075 Flow measuring apparatus 174 1993
5549106 Inspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patency 269 1993
 
CONCORDIA UNIVERSITY (1)
4393869 Electronically controlled respirator 84 1981
 
Racal Safety Limited (1)
4430995 Power assisted air-purifying respirators 54 1982
 
N. Visveshwara, M.D., Inc. (1)
4915103 Ventilation synchronizer 78 1987
 
Bussell; Carol (1)
4870963 Respiratory aid device 63 1988
 
WESTMED, INC. (1)
5546934 Resuscitator 23 1994
 
Infrasonics, Inc. (1)
5513631 Triggering of patient ventilator responsive to a precursor signal 183 1995
 
Dragerwerk Aktiengesellschaft (4)
4637386 Ventilation system having true valve control for controlling ventilation pressures 47 1985
* 5063925 Controllable expiration valve arrangement for a ventilating apparatus 12 1989
* 5065746 Expiration valve control arrangement for a ventilating apparatus 29 1989
5303700 Method for detecting the respiratory phases of a patient during an assisted ventilating process 90 1992
 
NISHIMURA, TOSHIHIRO (1)
5105354 Method and apparatus for correlating respiration and heartbeat variability 181 1989
 
CLINICAL DEVELOPMENT CORPORATION (1)
4602644 Physiological detector and monitor 70 1982
 
DEVILBISS HEALTHCARE LLC (2)
5503146 Standby control for CPAP apparatus 190 1994
5551419 Control for CPAP apparatus 244 1994
 
INTERNATIONAL ADAPTIVE MONITORS, INC. (1)
4686999 Multi-channel ventilation monitor and method 205 1985
 
UNITED TECHNOLOGIES CORPORATION (1)
4312235 Sensor and meter for measuring the mass flow of a fluid stream 50 1980
 
Sleepnet Corporation (1)
5645054 Device and method for the treatment of sleep apnea syndrome 146 1994
 
PAUL RITZAU PARI-WERK GMBH (1)
5280784 Device in particular and inhalating device for treating the lung and the respiratory tracts 188 1992
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
4648396 Respiration detector 107 1985
 
Applied Membrane Technology, Inc. (1)
4686975 Electronic respirable gas delivery device 87 1985
 
Environmental Support Systems, Inc. (1)
5398673 Resuscitator-snorkel for land or water use 69 1993
 
BEAR MEDICAL SYSTEMS INC. (3)
4527557 Medical ventilator system 105 1984
4637385 Pulmonary ventilator controller 52 1986
5540220 Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override 149 1994
 
ERICH JAEGER GMBH & CO. KG (1)
4558710 Testing of the airways and pulmonary tract of a patient, particularly for sensitivity to aerosols 206 1984
 
MEDTRONIC, INC. (3)
5174287 Airway feedback measurement system responsive to detected inspiration and obstructive apnea event 169 1991
5483969 Method and apparatus for providing a respiratory effort waveform for the treatment of obstructive sleep apnea 200 1994
5546952 Method and apparatus for detection of a respiratory waveform 86 1994
 
ETELA-HAMEEN KEUHKOVAMMAYHDISTYS R.Y. (1)
5063922 Ultrasonic atomizer 256 1989
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
5262893 Method and apparatus for creating multiple phase level optical elements 25 1991
 
Taema (1)
5443061 Apparatus for providing a breathing gas with an overpressure and process of controlling such apparatus installation 65 1992
 
Hok Instrument AB (1)
5195528 Acoustic respiration detector 53 1991
 
Sentel Technologies, Inc. (1)
4802485 Sleep apnea monitor 145 1987
 
Respirator Research, Ltd. (1)
4971050 Open circuit emergency breathing apparatus and pressure demand valve therefor 16 1987
 
LITTON SYSTEMS, INC. (1)
4499914 Selector valve for an aircraft on board oxygen generation system with high pressure oxygen backup 62 1983
 
CAREFREE TRADING, INC. D/B/A CFT, INC. (1)
4449525 Pulmonary resuscitator 37 1981
 
NON-INVASIVE MONITORING SYSTEMS, INC. (2)
4648407 Method for detecting and differentiating central and obstructive apneas in newborns 106 1986
4860766 Noninvasive method for measuring and monitoring intrapleural pressure in newborns 118 1987
 
The United States of America as represented by the Secretary of the Army (1)
5293864 Emergency breathing apparatus 55 1991
 
UNIVERSITY OF AUCKLAND (1)
4677975 Method of dispensing and/or a dispenser 377 1985
 
INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM) (1)
5129390 Process for regulating an artificial ventilation device and such device 83 1989
 
RESPIRONICS, INC. (8)
4559940 Resuscitation apparatus 56 1984
4686974 Breath synchronized gas-insufflation device and method therefor 154 1986
5009635 Pump apparatus 65 1989
5203343 Method and apparatus for controlling sleep disorder breathing 146 1991
5222478 Apparatus for application of pressure to a human body 126 1992
5353788 Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment 218 1992
5458137 Method and apparatus for controlling sleep disorder breathing 176 1993
5598838 Pressure support ventilatory assist system 205 1995
 
Weir Valves & Controls USA Inc. (1)
5305787 Disk valve with improved disk mounting 51 1993
 
NEW YORK UNIVERSITY (6)
4655213 Method and apparatus for the treatment of obstructive sleep apnea 300 1983
5065756 Method and apparatus for the treatment of obstructive sleep apnea 186 1987
5335654 Method and apparatus for continuous adjustment of positive airway pressure for treating obstructive sleep apnea 186 1992
RE35339 Method and apparatus for the treatment of obstructive sleep apnea 208 1992
5535739 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 201 1995
5546933 Method for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 103 1995
 
TECHNOLOGY HOLDING COMPANY II (2)
4803471 Ventilator monitor and alarm apparatus 52 1986
5099836 Intermittent oxygen delivery system and cannula 78 1990
 
HUDSON RESPIRATORY CARE INC. (1)
4838258 Gas sampling lumen for breathing system 86 1987
 
GAMBRO BCT, INC. (1)
4795314 Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals 158 1987
 
Laboratories Flork, S.A. (1)
4874893 Industrial process for the preparation of amino acids by hydrolysis of proteins in acid medium 20 1988
 
Tritec Industries, Inc. (2)
4414982 Apneic event detector and method 69 1980
4506666 Method and apparatus for rectifying obstructive apnea 100 1982
 
DYMEDIX CORPORATION (1)
5311875 Breath sensing apparatus 78 1992
 
INSPIRE MEDICAL SYSTEMS, INC. (1)
5540733 Method and apparatus for detecting and treating obstructive sleep apnea 253 1994
 
PURITAN-BENNETT CORPORATION (3)
4938212 Inspiration oxygen saver 225 1987
5161525 System and method for flow triggering of pressure supported ventilation 255 1990
5490502 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 175 1994
 
MADAUS MEDIZIN ELEKTRONIK GMBH & CO. KG (1)
4982738 Diagnostic apnea monitor system 121 1988
 
UNIVERSITY OF MANITOBA (3)
5107830 Lung ventilator device 258 1990
5540222 Piston-based ventilator design and operation 20 1993
5507282 Control of airway pressure during mechanical ventilation 95 1994
 
CARLETON LIFE SUPPORT SYSTEMS, INC. (1)
4870960 Backup breathing gas supply for an oxygen concentrator system 64 1987
 
SUNRISE MEDICAL HHG INC. (1)
4570631 Respirating gas supply method and apparatus therefor 120 1985
 
ARADIGM CORPORATION (1)
5509404 Intrapulmonary drug delivery within therapeutically relevant inspiratory flow/volume values 207 1994
 
MAQUET CRITICAL CARE AB (1)
4819629 Method and apparatus for delivering aerosol to the airways and/or lungs of a patient 317 1987
 
Trudell Medical Limited (1)
4938210 Inhalation chamber in ventilator circuit 206 1989
 
GOTTLIEB WIENMANN GERATE FUR MEDIZIN UND ARBEITSSCHUTZ GMBH & CO. (1)
5617846 Method of controlling a respirator for treatment of sleep apnea and device for carrying out the method 48 1995
 
NYFOTEK AS (1)
6222190 Photo acoustic infrared (IR) detector 19 1999
 
AT&T ALEX HOLDINGS, LLC (1)
8019610 Automated sentence planning in a task classification system 32 2009
 
Hudson Oxygen Therapy Sales Company (1)
4322594 Temperature control system with alarm and shut down for non-tracking condition of dual thermometers 52 1980
 
RELIABLE ENGINEERING SERVICES, INC. (1)
5603315 Multiple mode oxygen delivery system 107 1995
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (6)
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 23 2006
* 2007/0113,847 RESPIRATORY MONITORING WITH CANNULA RECEIVING FIRST RESPIRATORY AIRFLOWS AND SECOND RESPIRATORY AIRFLOWS 7 2006
* 2007/0113,850 RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS AND DIFFERENTIAL PRESSURE TRANSDUCER 21 2006
 
Other [Check patent profile for assignment information] (1)
* 2007/0199,566 Respiratory apparatus 62 2007
 
RIC INVESTMENTS, LLC. (4)
* 7793660 Method of treating obstructive sleep apnea 11 2005
* 2005/0234,364 Pressure support compliance monitoring system 1 2005
8365731 Pressure reducing valve with flexible cuff 0 2008
* 2009/0032,022 Pressure Reducing Valve With Flexible Cuff 2 2008
 
SiestaMed, Technologies (2)
* 7762006 Medical equipment drying device 0 2007
* 2007/0289,158 Medical equipment drying device and method 1 2007
 
ALYN WOLDENBERG FAMILY HOSPITAL (3)
* 2007/0017,522 Inexsufflator 14 2006
* 2007/0017,523 Inexsufflator 13 2006
* 2007/0186,928 Combined ventilator inexsufflator 25 2006
 
3M INNOVATIVE PROPERTIES COMPANY (1)
* 6666209 Method and system of calibrating air flow in a respirator system 31 2001
 
ACOBA, LLC (3)
7114497 Method and system of individually controlling airway pressure of a patient's nares 35 2004
* 2005/0011,523 Method and system of Individually controlling airway pressure of a patient's nares 26 2004
* 2006/0005,834 Method and system of providing therapeutic gas to a patient to prevent breathing airway collapse 24 2004
 
SLEEPNEA LLC (1)
9084859 Energy-harvesting respiratory method and device 0 2012
 
NOVARTIS AG (2)
8408200 Flow resistance modulated aerosolized active agent delivery 15 1999
* 2002/0168,322 FLOW RESISTANCE MODULATED AEROSOLIZED ACTIVE AGENT DELIVERY 4 1999
 
NOVARTIS PHARMA AG (2)
* 6655379 Aerosolized active agent delivery 66 1999
* 2005/0090,798 Aerosolized active agent delivery 6 2003
 
FSP INSTRUMENTS, LLC (1)
* 7637164 Apparatus for comparative pressure measurements of self-contained breathing apparatuses 1 2008
 
RESMED LIMITED (11)
* 6526974 Pressure control in CPAP treatment or assisted respiration 24 2000
* 6745770 Flow diverter for controlling the pressure and flow rate in a CPAP device 48 2002
* 2003/0127,096 Flow diverter for controlling the pressure and flow rate in a CPAP device 2 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
* 9259547 Systems for reducing exhalation pressure in a mask system 0 2007
* 2010/0043,796 SYSTEMS FOR REDUCING EXHALATION PRESSURE IN A MASK SYSTEM 9 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
 
INVACARE CORPORATION (11)
6990980 Carbon dioxide-based Bi-level CPAP control 43 2001
* 2002/0104,536 Carbon dioxide-based Bi-level CPAP Control 2 2001
7152598 System and method for providing a breathing gas 60 2003
* 2004/0255,943 System and method for providing a breathing gas 16 2003
7621270 System and method for providing a breathing gas 13 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 28 2005
* 2008/0251,079 APPARATUS AND METHOD FOR PROVIDING POSITIVE AIRWAY PRESSURE 42 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 21 2009
 
PULMONOX TECHNOLOGIES CORPORATION (1)
* 6668828 System and elements for managing therapeutic gas administration to a spontaneously breathing non-ventilated patient 56 2000
 
Sensormedics Corporation (1)
6766800 Pressure regulating valve for use in continuous positive airway pressure devices 95 2002
 
EMERGENT RESPIRATORY LLC (3)
7721735 Portable gas powered positive pressure breathing apparatus and method 20 2006
8365728 Portable gas powered positive pressure breathing apparatus and method 0 2010
* 2010/0199,985 PORTABLE GAS POWERED POSITIVE PRESSURE BREATHING APPARATUS AND METHOD 2 2010
 
MATERIELS INDUSTRIELS DE SECURITE (2)
* 8464366 Protective suit for an individual and related assembly 3 2010
* 2012/0036,622 PROTECTIVE SUIT FOR AN INDIVIDUAL AND RELATED ASSEMBLY 1 2010
 
INTERSURGICAL AG (2)
7066177 Exhalation valves 31 2004
* 2005/0034,726 Exhalation valves 8 2004
* Cited By Examiner