Determination of patency of the airway

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7320320
APP PUB NO 20040123866A1
SERIAL NO

10737267

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 WALES1019

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berthon-Jones, Michael Leonay, AU 94 3811

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 188 1991
 
Other [Check patent profile for assignment information] (20)
4381788 Method and apparatus for detecting apnea 70 1981
4387722 Respiration monitor and x-ray triggering apparatus 108 1981
4433693 Method and assembly for monitoring respiration and detecting apnea 83 1981
4738266 Apnoea monitor 83 1983
4550615 Fluid flowmeter 40 1983
4971065 Transducer for detecting apnea 83 1985
4630614 Apnea monitoring apparatus 106 1985
4777963 Respiration monitor 76 1987
4887607 Apparatus for and method of spectral analysis enhancement of polygraph examinations 25 1988
4823788 Demand oxygen controller and respiratory monitor 139 1988
5052400 Method and apparatus for using an inhalation sensor for monitoring and for inhalation therapy 95 1988
4844085 Pulmonary pressure and volume measurement 43 1988
5024219 Apparatus for inhalation therapy using triggered dose oxygenator employing an optoelectronic inhalation sensor 113 1989
4960118 Method and apparatus for measuring respiratory flow 117 1989
5178138 Drug delivery device 238 1990
5360008 Respiratory and cardiac monitor 46 1992
5388571 Positive-pressure ventilator system with controlled access for nebulizer component servicing 224 1992
5655520 Flexible valve for administering constant flow rates of medicine from a nebulizer 193 1993
5605151 Method for the diagnosis of sleep apnea 159 1995
5730121 Emergency air system 43 1996
 
DRÄGER MEDICAL GMBH (1)
5647351 Ventilating system for supplying a patient with respiratory gas and method for triggering the respiratory phases in said system 86 1995
 
VIVOMETRICS, INC. (2)
* 4777962 Method and apparatus for distinguishing central obstructive and mixed apneas by external monitoring devices which measure rib cage and abdominal compartmental excursions during respiration 111 1987
5178151 System for non-invasive detection of changes of cardiac volumes and aortic pulses 119 1991
 
WELLS FARGO BANK, NATIONAL ASSOCIATION (1)
5479920 Breath actuated medicinal aerosol delivery apparatus 314 1994
 
SHERWOOD SERVICES AG (1)
5170798 Pulmonary function tester 44 1991
 
Societe Anonyme Drager (1)
4825802 Pheumatic alarm for respirator 62 1987
 
MCEWEN, JAMES A. (1)
4550726 Method and apparatus for detection of breathing gas interruptions 108 1982
 
VITAL SIGNALS, INCORPORATED (1)
4972842 Method and apparatus for precision monitoring of infants on assisted ventilation 146 1988
 
PETERSON, CONRAD S. (1)
5069222 Respiration sensor set 80 1990
 
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE (1)
4827922 Process and device for supplying respiratory oxygen 80 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 249 1991
 
RESMED LIMITED (3)
5199424 Device for monitoring breathing during sleep and control of CPAP treatment that is patient controlled 287 1991
5245995 Device and method for monitoring breathing during sleep, control of CPAP treatment, and preventing of apnea 446 1992
5704345 Detection of apnea and obstruction of the airway in the respiratory system 382 1994
 
AKAMAI TECHNOLOGIES, INC. (1)
2009/0132,648 CONTENT DELIVERY AND GLOBAL TRAFFIC MANAGEMENT NETWORK SYSTEM 77 2009
 
Ethex International, Inc. (1)
5570682 Passive inspiratory nebulizer system 249 1993
 
THERMO KING CORPORATION (1)
5927090 Condenser and radiator air outlets 23 1997
 
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 60 1995
 
EMBLA SYSTEMS, INC. (2)
5161541 Flow sensor system 54 1991
5558099 Flow sensor system 41 1995
 
DRIBMED, LTD. (1)
4957107 Gas delivery means 215 1988
 
MIRIS MEDICAL INCORPORATED, A CORP. OF CA (1)
5404871 Delivery of aerosol medications for inspiration 381 1991
 
NELLCOR PURITAN BENNETT INCORPORATED (1)
4580575 Apnea monitoring system 71 1984
 
RIC INVESTMENTS, LLC. (7)
5190048 Thermistor airflow sensor assembly 56 1991
5394882 Physiological monitoring system 176 1993
5413111 Bead thermistor airflow sensor assembly 53 1993
5535738 Method and apparatus for providing proportional positive airway pressure to treat sleep disordered breathing 225 1994
RE35295 Sleep apnea treatment apparatus 74 1994
5540219 Sleep apnea treatment apparatus 94 1995
5701883 Oxygen mixing in a blower-based ventilator 103 1996
 
RIC INVESTMENTS, INC. (2)
5148802 Method and apparatus for maintaining airway patency to treat sleep apnea and other disorders 329 1989
5433193 Breathing gas delivery method and apparatus 176 1992
 
NELLCOR PURITAN BENNETT LLC (7)
5134995 Inspiratory airway pressure system with admittance determining apparatus and method 256 1990
5259373 Inspiratory airway pressure system controlled by the detection and analysis of patient airway sounds 197 1992
5438980 Inhalation/exhalation respiratory phase detection circuit 211 1993
5443075 Flow measuring apparatus 178 1993
5549106 Inspiratory airway pressure system using constant pressure and measuring flow signals to determine airway patency 277 1993
5630411 Valve for use with inhalation/exhalation respiratory phase detection circuit 200 1995
5845636 Method and apparatus for maintaining patient airway patency 144 1996
 
N. Visveshwara, M.D., Inc. (1)
4915103 Ventilation synchronizer 81 1987
 
BIOREC OY (1)
4320766 Apparatus in medicine for the monitoring and or recording of the body movements of a person on a bed, for instance of a patient 149 1980
 
MEDICAL GRAPHICS CORPORATION (1)
4440177 Respiratory analyzer system 108 1981
 
Infrasonics, Inc. (1)
5513631 Triggering of patient ventilator responsive to a precursor signal 187 1995
 
NOVASOM, INC. (1)
5797852 Sleep apnea screening and/or detecting apparatus and method 91 1995
 
UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION (1)
5313939 Endotracheal.TM. tube for topical substance delivery and associated method of use 28 1991
 
DRAGERWERK AKTIENGESELLSCHAFT (1)
5303700 Method for detecting the respiratory phases of a patient during an assisted ventilating process 91 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)
5165398 Ventilator and oscillator for use therewith and method 85 1991
 
NISHIMURA, TOSHIHIRO (1)
* 5105354 Method and apparatus for correlating respiration and heartbeat variability 182 1989
 
CLINICAL DEVELOPMENT CORPORATION (1)
4602644 Physiological detector and monitor 72 1982
 
UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. (1)
7601991 On-chip structure for electrostatic discharge (ESD) protection 46 2007
 
DEVILBISS HEALTHCARE LLC (2)
5503146 Standby control for CPAP apparatus 199 1994
5551419 Control for CPAP apparatus 252 1994
 
INTERNATIONAL ADAPTIVE MONITORS, INC. (1)
4686999 Multi-channel ventilation monitor and method 208 1985
 
UNITED TECHNOLOGIES CORPORATION (1)
4312235 Sensor and meter for measuring the mass flow of a fluid stream 51 1980
 
PAUL RITZAU PARI-WERK GMBH (1)
5280784 Device in particular and inhalating device for treating the lung and the respiratory tracts 193 1992
 
THE BRIGHAM AND WOMEN'S HOSPITAL, INC. (1)
4648396 Respiration detector 108 1985
 
BEAR MEDICAL SYSTEMS, INC. (2)
5107831 Ventilator control system using sensed inspiratory flow rate 152 1991
5540220 Pressure-limited, time-cycled pulmonary ventilation with volume-cycle override 154 1994
 
ERICH JAEGER GMBH & CO. KG (1)
4558710 Testing of the airways and pulmonary tract of a patient, particularly for sensitivity to aerosols 212 1984
 
MEDTRONIC, INC. (5)
* 5146918 Demand apnea control of central and obstructive sleep apnea 190 1991
* 5174287 Airway feedback measurement system responsive to detected inspiration and obstructive apnea event 172 1991
5233983 Method and apparatus for apnea patient screening 155 1991
5483969 Method and apparatus for providing a respiratory effort waveform for the treatment of obstructive sleep apnea 208 1994
5546952 Method and apparatus for detection of a respiratory waveform 95 1994
 
ETELA-HAMEEN KEUHKOVAMMAYHDISTYS R.Y. (2)
5063922 Ultrasonic atomizer 262 1989
4986269 Respiration therapy apparatus 216 1989
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
5262893 Method and apparatus for creating multiple phase level optical elements 25 1991
 
HÖK INSTRUMENT AB (1)
5195528 Acoustic respiration detector 54 1991
 
Sentel Technologies, Inc. (1)
4802485 Sleep apnea monitor 145 1987
 
CARDIOPULMONARY CORPORATION (2)
* 5020516 Circulatory assist method and apparatus 101 1988
* 5377671 Cardiac synchronous ventilation 60 1991
 
LITTON SYSTEMS, INC. (1)
4499914 Selector valve for an aircraft on board oxygen generation system with high pressure oxygen backup 62 1983
 
BATTELLE DEVELOPMENT CORPORATION (1)
* 4989595 Aspirator/nebulizer 5 1989
 
NON-INVASIVE MONITORING SYSTEMS, INC. (2)
4648407 Method for detecting and differentiating central and obstructive apneas in newborns 110 1986
4860766 Noninvasive method for measuring and monitoring intrapleural pressure in newborns 120 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 384 1985
 
RESPIRONICS, INC. (5)
4686974 Breath synchronized gas-insufflation device and method therefor 158 1986
5203343 Method and apparatus for controlling sleep disorder breathing 149 1991
* 5353788 Cardio-respiratory control and monitoring system for determining CPAP pressure for apnea treatment 226 1992
5458137 Method and apparatus for controlling sleep disorder breathing 180 1993
5598838 Pressure support ventilatory assist system 209 1995
 
"A.H. ROBINS COMPANY, INCORPORATED (1)
4576179 Respiration and heart rate monitoring apparatus 72 1983
 
Respirogenics Corporation (1)
5666946 Apparatus for delivering drugs to the lungs 220 1996
 
RESPIRATORY SUPPORT PRODUCTS, INC. (1)
4723543 Endotracheal tube connector 45 1985
 
NEW YORK UNIVERSITY (6)
4655213 Method and apparatus for the treatment of obstructive sleep apnea 306 1983
5065756 Method and apparatus for the treatment of obstructive sleep apnea 190 1987
* 5335654 Method and apparatus for continuous adjustment of positive airway pressure for treating obstructive sleep apnea 190 1992
5535739 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 205 1995
5546933 Method for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 104 1995
5803066 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 158 1996
 
TECHNOLOGY HOLDING COMPANY II (1)
4803471 Ventilator monitor and alarm apparatus 52 1986
 
HUDSON RESPIRATORY CARE INC. (1)
4838258 Gas sampling lumen for breathing system 89 1987
 
GAMBRO BCT, INC. (1)
4795314 Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals 159 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. (1)
4506666 Method and apparatus for rectifying obstructive apnea 101 1982
 
DYMEDIX CORPORATION (1)
5311875 Breath sensing apparatus 79 1992
 
INSPIRE MEDICAL SYSTEMS, INC. (2)
5540733 Method and apparatus for detecting and treating obstructive sleep apnea 265 1994
5549655 Method and apparatus for synchronized treatment of obstructive sleep apnea 330 1994
 
PURITAN-BENNETT CORPORATION (4)
4938212 Inspiration oxygen saver 232 1987
4989599 Dual lumen cannula 229 1989
5490502 Method and apparatus for optimizing the continuous positive airway pressure for treating obstructive sleep apnea 179 1994
5660171 System and method for flow triggering of pressure supported ventilation by comparison of inhalation and exhalation flow rates 242 1996
 
SAM TECHNOLOGY, INC. (1)
5295491 Non-invasive human neurocognitive performance capability testing method and system 464 1991
 
MEDICON, INC. (1)
4365636 Method of monitoring patient respiration and predicting apnea therefrom 182 1981
 
MADAUS MEDIZIN ELEKTRONIK GMBH & CO. KG (1)
4982738 Diagnostic apnea monitor system 121 1988
 
UNIVERSITY OF MANITOBA (1)
5507282 Control of airway pressure during mechanical ventilation 97 1994
 
CARLETON LIFE SUPPORT SYSTEMS, INC. (1)
4870960 Backup breathing gas supply for an oxygen concentrator system 64 1987
 
Lifesigns, Inc. (1)
5448996 Patient monitor sheets 150 1994
 
SUNRISE MEDICAL HHG INC. (1)
4570631 Respirating gas supply method and apparatus therefor 121 1985
 
ARADIGM CORPORATION (2)
5509404 Intrapulmonary drug delivery within therapeutically relevant inspiratory flow/volume values 214 1994
5608647 Method for releasing controlled amount of aerosol medication 196 1995
 
THE JOHNS HOPKINS UNIVERSITY (1)
5327899 Polygraph automated scoring systems 24 1993
 
MAQUET CRITICAL CARE AB (1)
4819629 Method and apparatus for delivering aerosol to the airways and/or lungs of a patient 323 1987
 
TRUDELL MEDICAL LIMITED (2)
4938210 Inhalation chamber in ventilator circuit 212 1989
5642730 Catheter system for delivery of aerosolized medicine for use with pressurized propellant canister 228 1994
 
NYFOTEK AS (1)
6222190 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 98 2002
 
Hudson Oxygen Therapy Sales Company (1)
4322594 Temperature control system with alarm and shut down for non-tracking condition of dual thermometers 52 1980
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5479939 Sleep detecting apparatus 94 1994
 
THE UNIVERSITY OF MELBOURNE (1)
5090248 Electronic transducer 46 1990
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Nexense Ltd. (2)
* 7866212 High-sensitivity sensors for sensing various physiological phenomena, particularly useful in anti-snoring apparatus and methods 28 2005
* 2008/0306,396 High-Sensitivity Sensors for Sensing Various Physiological Phenomena, Particularly Useful in Anti-Snoring Apparatus and Methods 5 2005
 
KONINKLIJKE PHILIPS ELECTRONICS N V (2)
* 9056172 Automatic pressure titration 0 2010
* 2011/0297,156 AUTOMATIC PRESSURE TITRATION 2 2010
 
GENERAL ELECTRIC COMPANY (5)
* 9259542 Respiratory monitoring with differential pressure transducer 0 2006
* 2007/0125,380 RESPIRATORY MONITORING WITH DIFFERENTIAL PRESSURE TRANSDUCER 4 2006
7918226 Method and system for detecting breathing tube occlusion 17 2007
8752546 System and method for mobilizing occlusions from a breathing tube 1 2008
* 2009/0266,360 SYSTEM AND METHOD FOR MOBILIZING OCCLUSIONS FROM A BREATHING TUBE 8 2008
 
NIHON KOHDEN CORPORATION (1)
* 2010/0145,211 GAS FLOW SYSTEM, METER, AND METHOD 0 2009
 
COVIDIEN LP (2)
9375542 Systems and methods for monitoring, managing, and/or preventing fatigue during ventilation 0 2012
9358355 Methods and systems for managing a patient move 0 2013
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 22, 2019
Fee Large entity fee small entity fee micro entity fee
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