US Patent No: 7,320,320

Number of patents in Portfolio can not be more than 2000

Determination of patency of the airway

ALSO PUBLISHED AS: 20040123866

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

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 WALES865

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berthon-Jones, Michael Leonay, AU 93 2686

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 170 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 94 1981
4,433,693 Method and assembly for monitoring respiration and detecting apnea 76 1981
4,738,266 Apnoea monitor 79 1983
4,550,615 Fluid flowmeter 39 1983
4,971,065 Transducer for detecting apnea 73 1985
4,630,614 Apnea monitoring apparatus 99 1985
4,777,963 Respiration monitor 70 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 127 1988
5,052,400 Method and apparatus for using an inhalation sensor for monitoring and for inhalation therapy 82 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 102 1989
4,960,118 Method and apparatus for measuring respiratory flow 103 1989
5,178,138 Drug delivery device 212 1990
5,360,008 Respiratory and cardiac monitor 43 1992
5,388,571 Positive-pressure ventilator system with controlled access for nebulizer component servicing 203 1992
5,655,520 Flexible valve for administering constant flow rates of medicine from a nebulizer 165 1993
5,605,151 Method for the diagnosis of sleep apnea 144 1995
5,730,121 Emergency air system 41 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 72 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 99 1987
5,178,151 System for non-invasive detection of changes of cardiac volumes and aortic pulses 105 1991
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
5,479,920 Breath actuated medicinal aerosol delivery apparatus 271 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 102 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 73 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 226 1991
 
RESMED LIMITED (3)
5,199,424 Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled 264 1991
5,245,995 Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea 394 1992
5,704,345 Detection of apnea and obstruction of the airway in the respiratory system 329 1994
 
AKAMAI TECHNOLOGIES, INC. (1)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 41 2009
 
Ethex International, Inc. (1)
5,570,682 Passive inspiratory nebulizer system 218 1993
 
THERMO KING CORPORATION (1)
5,927,090 Condenser and radiator air outlets 22 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 199 1988
 
MIRIS MEDICAL INCORPORATED, A CORP. OF CA (1)
5,404,871 Delivery of aerosol medications for inspiration 327 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 51 1991
5,394,882 Physiological monitoring system 138 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 195 1994
RE35295 Sleep apnea treatment apparatus 67 1994
5,540,219 Sleep apnea treatment apparatus 89 1995
5,701,883 Oxygen mixing in a blower-based ventilator 90 1996
 
RIC INVESTMENTS, INC. (2)
5,148,802 Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders 290 1989
5,433,193 Breathing gas delivery method and apparatus 157 1992
 
NELLCOR PURITAN BENNETT LLC (7)
5,134,995 Inspiratory airway pressure system with admittance determining apparatus and method 230 1990
5,259,373 Inspiratory airway pressure system controlled by the detection and analysis of patient airway sounds 182 1992
5,438,980 Inhalation/exhalation respiratory phase detection circuit 174 1993
5,443,075 Flow measuring apparatus 144 1993
5,549,106 Inspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patency 234 1993
5,630,411 Valve for use with inhalation/exhalation respiratory phase detection circuit 169 1995
5,845,636 Method and apparatus for maintaining patient airway patency 123 1996
 
N. Visveshwara, M.D., Inc. (1)
4,915,103 Ventilation synchronizer 70 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 139 1980
 
MEDICAL GRAPHICS CORPORATION (1)
4,440,177 Respiratory analyzer system 102 1981
 
Infrasonics, Inc. (1)
5,513,631 Triggering of patient ventilator responsive to a precursor signal 154 1995
 
NOVASOM, INC. (1)
5,797,852 Sleep apnea screening and/or detecting apparatus and method 82 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 25 1991
 
Dragerwerk Aktiengesellschaft (1)
5,303,700 Method for detecting the respiratory phases of a patient during an assisted ventilating process 83 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 79 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 66 1982
 
UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. (1)
7,601,991 On-chip structure for electrostatic discharge (ESD) protection 35 2007
 
DEVILBISS HEALTHCARE LLC (2)
5,503,146 Standby control for CPAP apparatus 169 1994
5,551,419 Control for CPAP apparatus 205 1994
 
INTERNATIONAL ADAPTIVE MONITORS, INC. (1)
4,686,999 Multi-channel ventilation monitor and method 178 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 173 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 139 1991
5,540,220 Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override 131 1994
 
ERICH JAEGER GMBH (1)
4,558,710 Testing of the airways and pulmonary tract of a patient, particularly for sensitivity to aerosols 191 1984
 
MEDTRONIC, INC. (5)
* 5,146,918 Demand apnea control of central and obstructive sleep apnea 160 1991
* 5,174,287 Airway feedback measurement system responsive to detected inspiration and obstructive apnea event 148 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 180 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 238 1989
4,986,269 Respiration therapy apparatus 181 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 50 1991
 
Sentel Technologies, Inc. (1)
4,802,485 Sleep apnea monitor 138 1987
 
CARDIOPULMONARY CORPORATION (2)
* 5,020,516 Circulatory assist method and apparatus 88 1988
* 5,377,671 Cardiac synchronous ventilation 53 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 90 1986
4,860,766 Noninvasive method for measuring and monitoring intrapleural pressure in newborns 104 1987
 
The United States of America as represented by the Secretary of the Army (1)
5,293,864 Emergency breathing apparatus 53 1991
 
UNIVERSITY OF AUCKLAND (1)
4,677,975 Method of dispensing and/or a dispenser 356 1985
 
RESPIRONICS, INC. (5)
4,686,974 Breath synchronized gas-insufflation device and method therefor 147 1986
5,203,343 Method and apparatus for controlling sleep disorder breathing 140 1991
* 5,353,788 Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment 191 1992
5,458,137 Method and apparatus for controlling sleep disorder breathing 167 1993
5,598,838 Pressure support ventilatory assist system 183 1995
 
A. H. Robins Company, Incorporated (1)
4,576,179 Respiration and heart rate monitoring apparatus 66 1983
 
Respirogenics Corporation (1)
5,666,946 Apparatus for delivering drugs to the lungs 199 1996
 
RESPIRATORY SUPPORT PRODUCTS, INC. (1)
4,723,543 Endotracheal tube connector 41 1985
 
NEW YORK UNIVERSITY (6)
4,655,213 Method and apparatus for the treatment of obstructive sleep apnea 283 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 178 1992
5,535,739 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 193 1995
5,546,933 Method for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 100 1995
5,803,066 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 146 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 76 1987
 
GAMBRO BCT, INC. (1)
4,795,314 Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals 147 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 93 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 223 1994
5,549,655 Method and apparatus for synchronized treatment of obstructive sleep apnea 279 1994
 
PURITAN-BENNETT CORPORATION (4)
4,938,212 Inspiration oxygen saver 207 1987
4,989,599 Dual lumen cannula 194 1989
5,490,502 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 162 1994
5,660,171 System and method for flow triggering of pressure supported ventilation by comparison of inhalation and exhalation flow rates 203 1996
 
SAM TECHNOLOGY, INC. (1)
5,295,491 Non-invasive human neurocognitive performance capability testing method and system 364 1991
 
MEDICON, INC. (1)
4,365,636 Method of monitoring patient respiration and predicting apnea therefrom 165 1981
 
MADAUS MEDIZIN ELEKTRONIK GMBH & CO. KG (1)
4,982,738 Diagnostic apnea monitor system 113 1988
 
University of Manitoba (1)
5,507,282 Control of airway pressure during mechanical ventilation 84 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 134 1994
 
SUNRISE MEDICAL HHG INC. (1)
4,570,631 Respirating gas supply method and apparatus therefor 115 1985
 
ARADIGM CORPORATION (2)
5,509,404 Intrapulmonary drug delivery within therapeutically relevant inspiratory flow/volume values 193 1994
5,608,647 Method for releasing controlled amount of aerosol medication 178 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 302 1987
 
Trudell Medical Limited (2)
4,938,210 Inhalation chamber in ventilator circuit 190 1989
5,642,730 Catheter system for delivery of aerosolized medicine for use with pressurized propellant canister 202 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 29 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 83 1994
 
The University of Melbourne (1)
5,090,248 Electronic transducer 45 1990
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Nexense Ltd. (1)
* 7,866,212 High-sensitivity sensors for sensing various physiological phenomena, particularly useful in anti-snoring apparatus and methods 22 2005
 
GENERAL ELECTRIC COMPANY (3)
* 2007/0125,380 RESPIRATORY MONITORING WITH DIFFERENTIAL PRESSURE TRANSDUCER 2 2006
7,918,226 Method and system for detecting breathing tube occlusion 12 2007
8,752,546 System and method for mobilizing occlusions from a breathing tube 0 2008
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (2)
* 9,056,172 Automatic pressure titration 0 2010
* 2011/0297,156 AUTOMATIC PRESSURE TITRATION 0 2010
 
NIHON KOHDEN CORPORATION (1)
* 2010/0145,211 GAS FLOW SYSTEM, METER, AND METHOD 0 2009
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 22, 2015
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 22, 2019
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00