US Patent No: 7,320,320

Number of patents in Portfolio can not be more than 2000

Determination of patency of the airway

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods and apparatus for determining the occurrence of an apnea, patency and/or partial obstruction of the airway are disclosed. Respiratory air flow from a patient is measured to give an air flow signal. The determination of an apnea is performed by calculating the variance of the air flow signal over a moving time window and comparing the variance with a threshold value. One determination of partial obstruction of the airway is performed by detecting the inspiratory part of the air flow signal, scaling it to unity duration and area and calculating an index value of the amplitude of the scaled signal over a mid-portion. Alternatively, the index value is a measure of the flatness of the air flow signal over the mid-portion. One determination of patency of the airway is performed by applying an oscillatory pressure waveform of known frequency to a patient's airway, calculating the magnitude of the component of said air flow signal at the known frequency induced by the oscillatory pressure waveform and comparing the calculated magnitude with a threshold value. Alternatively, the air flow signal is analysed to detect the presence of a component due to cardiogenic activity.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
RESMED LIMITEDBELLA VISTA NEW SOUTH WALES902

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berthon-Jones, Michael Leonay, AU 93 3206

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MINNESOTA MINING AND MANUFACTURING COMPANY (1)
5,231,983 Method of and apparatus for the aerosol administration of medication 174 1991
 
Other [Check patent profile for assignment information] (20)
4,381,788 Method and apparatus for detecting apnea 68 1981
4,387,722 Respiration monitor and x-ray triggering apparatus 98 1981
4,433,693 Method and assembly for monitoring respiration and detecting apnea 76 1981
4,738,266 Apnoea monitor 80 1983
4,550,615 Fluid flowmeter 39 1983
4,971,065 Transducer for detecting apnea 76 1985
4,630,614 Apnea monitoring apparatus 102 1985
4,777,963 Respiration monitor 72 1987
4,887,607 Apparatus for and method of spectral analysis enhancement of polygraph examinations 24 1988
4,823,788 Demand oxygen controller and respiratory monitor 131 1988
5,052,400 Method and apparatus for using an inhalation sensor for monitoring and for inhalation therapy 86 1988
4,844,085 Pulmonary pressure and volume measurement 41 1988
5,024,219 Apparatus for inhalation therapy using triggered dose oxygenator employing an optoelectronic inhalation sensor 105 1989
4,960,118 Method and apparatus for measuring respiratory flow 106 1989
5,178,138 Drug delivery device 220 1990
5,360,008 Respiratory and cardiac monitor 43 1992
5,388,571 Positive-pressure ventilator system with controlled access for nebulizer component servicing 208 1992
5,655,520 Flexible valve for administering constant flow rates of medicine from a nebulizer 172 1993
5,605,151 Method for the diagnosis of sleep apnea 147 1995
5,730,121 Emergency air system 42 1996
 
DRAEGER MEDICAL GMBH (1)
5,647,351 Ventilating system for supplying a patient with respiratory gas and method for triggering the respiratory phases in said system 77 1995
 
VIVOMETRICS, INC. (2)
* 4,777,962 Method and apparatus for distinguishing central obstructive and mixed apneas by external monitoring devices which measure rib cage and abdominal compartmental excursions during respiration 102 1987
5,178,151 System for non-invasive detection of changes of cardiac volumes and aortic pulses 107 1991
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
5,479,920 Breath actuated medicinal aerosol delivery apparatus 282 1994
 
SHERWOOD SERVICES AG (1)
5,170,798 Pulmonary function tester 43 1991
 
Societe Anonyme Drager (1)
4,825,802 Pheumatic alarm for respirator 59 1987
 
MCEWEN, JAMES A. (1)
4,550,726 Method and apparatus for detection of breathing gas interruptions 103 1982
 
Vital Signals, Inc. (1)
4,972,842 Method and apparatus for precision monitoring of infants on assisted ventilation 138 1988
 
PETERSON, CONRAD S. (1)
5,069,222 Respiration sensor set 75 1990
 
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (1)
4,827,922 Process and device for supplying respiratory oxygen 77 1988
 
VOTRAN MEDICAL TECHNOLOGY, INC., A CORP. OF CA (1)
5,322,057 Intermittent signal actuated nebulizer synchronized to operate in the exhalation phase, and its method of use 233 1991
 
RESMED LIMITED (3)
5,199,424 Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled 272 1991
5,245,995 Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea 408 1992
5,704,345 Detection of apnea and obstruction of the airway in the respiratory system 344 1994
 
AKAMAI TECHNOLOGIES, INC. (1)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 56 2009
 
Ethex International, Inc. (1)
5,570,682 Passive inspiratory nebulizer system 228 1993
 
THERMO KING CORPORATION (1)
5,927,090 Condenser and radiator air outlets 23 1997
 
SENSORMEDICS CORPORATION (1)
4,448,058 Respiratory gas analysis instrument having improved volume calibration method and apparatus 69 1982
 
NELLCOR INCORPORATED (1)
5,588,439 Acoustic impulse respirometer and method 58 1995
 
EMBLA SYSTEMS, INC. (2)
5,161,541 Flow sensor system 52 1991
5,558,099 Flow sensor system 40 1995
 
DRIBMED, LTD. (1)
4,957,107 Gas delivery means 205 1988
 
MIRIS MEDICAL INCORPORATED, A CORP. OF CA (1)
5,404,871 Delivery of aerosol medications for inspiration 341 1991
 
NELLCOR PURITAN BENNETT INCORPORATED (1)
4,580,575 Apnea monitoring system 67 1984
 
RIC Investments, LLC (7)
5,190,048 Thermistor airflow sensor assembly 52 1991
5,394,882 Physiological monitoring system 148 1993
5,413,111 Bead thermistor airflow sensor assembly 51 1993
5,535,738 Method and apparatus for providing proportional positive airway pressure to treat sleep disordered breathing 201 1994
RE35295 Sleep apnea treatment apparatus 68 1994
5,540,219 Sleep apnea treatment apparatus 90 1995
5,701,883 Oxygen mixing in a blower-based ventilator 93 1996
 
RIC INVESTMENTS, INC. (2)
5,148,802 Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders 300 1989
5,433,193 Breathing gas delivery method and apparatus 160 1992
 
NELLCOR PURITAN BENNETT LLC (7)
5,134,995 Inspiratory airway pressure system with admittance determining apparatus and method 238 1990
5,259,373 Inspiratory airway pressure system controlled by the detection and analysis of patient airway sounds 187 1992
5,438,980 Inhalation/exhalation respiratory phase detection circuit 185 1993
5,443,075 Flow measuring apparatus 154 1993
5,549,106 Inspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patency 246 1993
5,630,411 Valve for use with inhalation/exhalation respiratory phase detection circuit 177 1995
5,845,636 Method and apparatus for maintaining patient airway patency 130 1996
 
N. Visveshwara, M.D., Inc. (1)
4,915,103 Ventilation synchronizer 74 1987
 
BIOREC OY (1)
4,320,766 Apparatus in medicine for the monitoring and or recording of the body movements of a person on a bed, for instance of a patient 142 1980
 
Medical Graphics Corporation (1)
4,440,177 Respiratory analyzer system 104 1981
 
Infrasonics, Inc. (1)
5,513,631 Triggering of patient ventilator responsive to a precursor signal 164 1995
 
NOVASOM, INC. (1)
5,797,852 Sleep apnea screening and/or detecting apparatus and method 85 1995
 
UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION (1)
5,313,939 Endotracheal.TM. tube for topical substance delivery and associated method of use 27 1991
 
DRAGERWERK AG (1)
5,303,700 Method for detecting the respiratory phases of a patient during an assisted ventilating process 87 1992
 
OCTOBER 10, 2003 RESTATEMENT OF TRUST A UNDER THE FORREST M. BIRD AND MARY P. BIRD REVOCABLE TRUST DATED JULY 29, 1983, THE (1)
5,165,398 Ventilator and oscillator for use therewith and method 80 1991
 
NISHIMURA, TOSHIHIRO (1)
* 5,105,354 Method and apparatus for correlating respiration and heartbeat variability 171 1989
 
CLINICAL DEVELOPMENT CORPORATION (1)
4,602,644 Physiological detector and monitor 67 1982
 
UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. (1)
7,601,991 On-chip structure for electrostatic discharge (ESD) protection 39 2007
 
DEVILBISS HEALTHCARE LLC (2)
5,503,146 Standby control for CPAP apparatus 175 1994
5,551,419 Control for CPAP apparatus 211 1994
 
INTERNATIONAL ADAPTIVE MONITORS, INC. (1)
4,686,999 Multi-channel ventilation monitor and method 184 1985
 
UNITED TECHNOLOGIES CORPORATION (1)
4,312,235 Sensor and meter for measuring the mass flow of a fluid stream 47 1980
 
PAUL RITZAU PARI-WERK GMBH (1)
5,280,784 Device in particular and inhalating device for treating the lung and the respiratory tracts 177 1992
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
4,648,396 Respiration detector 105 1985
 
BEAR MEDICAL SYSTEMS, INC. (2)
5,107,831 Ventilator control system using sensed inspiratory flow rate 145 1991
5,540,220 Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override 138 1994
 
ERICH JAEGER GMBH (1)
4,558,710 Testing of the airways and pulmonary tract of a patient, particularly for sensitivity to aerosols 197 1984
 
MEDTRONIC, INC. (5)
* 5,146,918 Demand apnea control of central and obstructive sleep apnea 163 1991
* 5,174,287 Airway feedback measurement system responsive to detected inspiration and obstructive apnea event 152 1991
5,233,983 Method and apparatus for apnea patient screening 138 1991
5,483,969 Method and apparatus for providing a respiratory effort waveform for the treatment of obstructive sleep apnea 184 1994
5,546,952 Method and apparatus for detection of a respiratory waveform 75 1994
 
ETELA-HAMEEN KEUHKOVAMMAYHDISTYS R.Y. (2)
5,063,922 Ultrasonic atomizer 244 1989
4,986,269 Respiration therapy apparatus 190 1989
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
5,262,893 Method and apparatus for creating multiple phase level optical elements 25 1991
 
HOK INSTRUMENT AB (1)
5,195,528 Acoustic respiration detector 51 1991
 
Sentel Technologies, Inc. (1)
4,802,485 Sleep apnea monitor 141 1987
 
CARDIOPULMONARY CORPORATION (2)
* 5,020,516 Circulatory assist method and apparatus 92 1988
* 5,377,671 Cardiac synchronous ventilation 56 1991
 
LITTON SYSTEMS, INC. (1)
4,499,914 Selector valve for an aircraft on board oxygen generation system with high pressure oxygen backup 61 1983
 
BATTELLE DEVELOPMENT CORPORATION (1)
* 4,989,595 Aspirator/nebulizer 5 1989
 
Non-Invasive Monitoring Systems, Inc. (2)
4,648,407 Method for detecting and differentiating central and obstructive apneas in newborns 91 1986
4,860,766 Noninvasive method for measuring and monitoring intrapleural pressure in newborns 106 1987
 
The United States of America as represented by the Secretary of the Army (1)
5,293,864 Emergency breathing apparatus 54 1991
 
UNIVERSITY OF AUCKLAND (1)
4,677,975 Method of dispensing and/or a dispenser 364 1985
 
RESPIRONICS, INC. (5)
4,686,974 Breath synchronized gas-insufflation device and method therefor 150 1986
5,203,343 Method and apparatus for controlling sleep disorder breathing 143 1991
* 5,353,788 Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment 196 1992
5,458,137 Method and apparatus for controlling sleep disorder breathing 168 1993
5,598,838 Pressure support ventilatory assist system 191 1995
 
A.H. ROBINS COMPANY, INCORPORATED, A DE CORP. (1)
4,576,179 Respiration and heart rate monitoring apparatus 68 1983
 
Respirogenics Corporation (1)
5,666,946 Apparatus for delivering drugs to the lungs 204 1996
 
RESPIRATORY SUPPORT PRODUCTS, INC. (1)
4,723,543 Endotracheal tube connector 44 1985
 
NEW YORK UNIVERSITY (6)
4,655,213 Method and apparatus for the treatment of obstructive sleep apnea 289 1983
5,065,756 Method and apparatus for the treatment of obstructive sleep apnea 169 1987
* 5,335,654 Method and apparatus for continuous adjustment of positive airway pressure for treating obstructive sleep apnea 180 1992
5,535,739 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 196 1995
5,546,933 Method for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 102 1995
5,803,066 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 147 1996
 
TECHNOLOGY HOLDING COMPANY II (1)
4,803,471 Ventilator monitor and alarm apparatus 51 1986
 
HUDSON RESPIRATORY CARE INC. (1)
4,838,258 Gas sampling lumen for breathing system 77 1987
 
GAMBRO BCT, INC. (1)
4,795,314 Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals 148 1987
 
Laboratories Flork, S.A. (1)
4,874,893 Industrial process for the preparation of amino acids by hydrolysis of proteins in acid medium 19 1988
 
Tritec Industries, Inc. (1)
4,506,666 Method and apparatus for rectifying obstructive apnea 98 1982
 
DYMEDIX CORPORATION (1)
5,311,875 Breath sensing apparatus 76 1992
 
INSPIRE MEDICAL SYSTEMS, INC. (2)
5,540,733 Method and apparatus for detecting and treating obstructive sleep apnea 228 1994
5,549,655 Method and apparatus for synchronized treatment of obstructive sleep apnea 287 1994
 
PURITAN-BENNETT CORPORATION (4)
4,938,212 Inspiration oxygen saver 214 1987
4,989,599 Dual lumen cannula 208 1989
5,490,502 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 167 1994
5,660,171 System and method for flow triggering of pressure supported ventilation by comparison of inhalation and exhalation flow rates 211 1996
 
SAM TECHNOLOGY, INC. (1)
5,295,491 Non-invasive human neurocognitive performance capability testing method and system 387 1991
 
MEDICON, INC. (1)
4,365,636 Method of monitoring patient respiration and predicting apnea therefrom 170 1981
 
MADAUS MEDIZIN ELEKTRONIK GMBH & CO. KG (1)
4,982,738 Diagnostic apnea monitor system 115 1988
 
UNIVERSITY OF MANITOBA (1)
5,507,282 Control of airway pressure during mechanical ventilation 88 1994
 
CARLETON LIFE SUPPORT SYSTEMS INC. (1)
4,870,960 Backup breathing gas supply for an oxygen concentrator system 63 1987
 
Lifesigns, Inc. (1)
5,448,996 Patient monitor sheets 140 1994
 
SUNRISE MEDICAL HHG INC. (1)
4,570,631 Respirating gas supply method and apparatus therefor 118 1985
 
ARADIGM CORPORATION (2)
5,509,404 Intrapulmonary drug delivery within therapeutically relevant inspiratory flow/volume values 199 1994
5,608,647 Method for releasing controlled amount of aerosol medication 184 1995
 
THE JOHNS HOPKINS UNIVERSITY (1)
5,327,899 Polygraph automated scoring systems 23 1993
 
MAQUET CRITICAL CARE AB (1)
4,819,629 Method and apparatus for delivering aerosol to the airways and/or lungs of a patient 307 1987
 
Trudell Medical Limited (2)
4,938,210 Inhalation chamber in ventilator circuit 196 1989
5,642,730 Catheter system for delivery of aerosolized medicine for use with pressurized propellant canister 209 1994
 
NYFOTEK AS (1)
6,222,190 Photo acoustic infrared (IR) detector 19 1999
 
FACEBOOK, INC. (1)
2003/0126,250 Systems for communicating current and future activity information among mobile internet users and methods therefor 50 2002
 
HUDSON OXYGEN THERAPY SALES COMPANY, A CA CORP. (1)
4,322,594 Temperature control system with alarm and shut down for non-tracking condition of dual thermometers 51 1980
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5,479,939 Sleep detecting apparatus 88 1994
 
THE UNIVERSITY OF MELBOURNE (1)
5,090,248 Electronic transducer 45 1990
* Cited By Examiner

Patent Citation Ranking

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Nexense Ltd. (2)
* 7,866,212 High-sensitivity sensors for sensing various physiological phenomena, particularly useful in anti-snoring apparatus and methods 24 2005
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* 2007/0125,380 RESPIRATORY MONITORING WITH DIFFERENTIAL PRESSURE TRANSDUCER 2 2006
7,918,226 Method and system for detecting breathing tube occlusion 15 2007
8,752,546 System and method for mobilizing occlusions from a breathing tube 0 2008
* 2009/0266,360 SYSTEM AND METHOD FOR MOBILIZING OCCLUSIONS FROM A BREATHING TUBE 4 2008
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (2)
* 9,056,172 Automatic pressure titration 0 2010
* 2011/0297,156 AUTOMATIC PRESSURE TITRATION 1 2010
 
NIHON KOHDEN CORPORATION (1)
* 2010/0145,211 GAS FLOW SYSTEM, METER, AND METHOD 0 2009
* Cited By Examiner

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