[특허]Distinguishing between closed and open airway apneas and treating patients accordingly

Distinguishing between closed and open airway apneas and treating patients accordingly 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-031/02 A61M-016/00 A62B-007/00
출원번호	US-0789976 (2010-05-28)
등록번호	US-8360060 (2013-01-29)
우선권정보	AU-PM2246 (1993-11-05)
발명자 / 주소	Berthon-Jones, Michael
출원인 / 주소	ResMed Limited
인용정보	피인용 횟수 : 0 인용 특허 : 170

초록 ▼

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.

대표청구항 ▼

1. A method for treating an airway disorder of a patient using a CPAP apparatus comprising: delivering an airflow directed toward the patient's airway;determining whether air is flowing in the patient's airway by generating a signal representing patient breathing;if air is flowing in the patient's airway, determining whether the patient's airway has a flow restriction;if air is not flowing in the patient's airway, initiating an oscillating pressure waveform for a time period to determine whether conditions point to the presence of an obstructive apnea or a central apnea;increasing the pressure of the delivered airflow in the same manner if (1) there is an airway flow restriction or (2) conditions are indicative of the presence of an obstructive apnea; andnot increasing the pressure of the delivered airflow if (1) air is flowing in the patient's airway and the airway is not determined to be flow restricted or (2) conditions point to the presence of a central apneawherein a flow restriction or a type of apnea is detected based upon a function of said signal representing patient breathing. 2. The method of claim 1 wherein, upon determining the presence of a flow restriction or determining the presence of an apnea, introducing a delay followed by delivering an airflow with an oscillating pressure waveform. 3. The method of claim 1 wherein the step of determining whether air is flowing in the patient's airway includes determining leak and subtracting said leak from said delivered airflow. 4. The method of claim 1 wherein the step of determining whether the patient's airway has a flow restriction includes linearizing a signal representing flow in the patient's airway. 5. The method of claim 1 wherein at least one condition which points to the presence of an obstructive apnea or a central apnea represents a parameter which exceeds a fixed threshold. 6. The method of claim 1 wherein upon determining the presence of a flow restriction or determining the presence of an apnea, delivering an airflow with an oscillating pressure waveform of known frequency and magnitude. 7. The apparatus of claim 1 wherein parameters relating to airflow are measured at a flow generator. 8. An apparatus for treating an airway disorder of a patient comprising: a flow sensor for determining whether air is flowing in the patient's airway;a processor coupled to said flow sensor; andmeans for delivering airflow directed toward the patient's airway;wherein said processor is programmed(1) to determine if air is flowing in the patient's airway by generating a signal representing patient breathing—and(2) if air is flowing in the patient's airway, to determine whether the patient's airway has a flow restriction;(3) if air is not flowing in the patient's airway, initiating an oscillating pressure waveform for a time period to determine whether conditions point to the presence of an obstructive apnea or a central apnea;(4) to increase the pressure of the delivered airflow in the same manner if (a) there is an airway flow restriction or (b) conditions are indicative of the presence of an obstructive apnea; and(5) to not increase the pressure of the delivered airflow if (a) air is flowing in the patient's airway and the airway is not determined to be flow restricted or (b) conditions point to the presence of a central apneawherein a flow restriction or a type of apnea is detected based upon a function of said signal representing patient breathing. 9. The apparatus of claim 8 wherein upon determining the presence of a flow restriction or determining the presence of an apnea, introducing a delay followed by said means delivering an oscillating pressure waveform. 10. The apparatus of claim 8 wherein determining whether air is flowing in the patient's airway includes determining leak and subtracting said leak from said airflow. 11. The apparatus of claim 8 wherein determining whether the patient's airway has a flow restriction includes linearizing a signal representing flow in the patient's airway. 12. The apparatus of claim 8 wherein at least one condition which points to the presence of an obstructive apnea or a central apnea represents a parameter which exceeds a fixed threshold. 13. The apparatus of claim 8 wherein, upon determining the presence of a flow restriction or determining the presence of an apnea, said means delivering an oscillating pressure waveform of known frequency and magnitude. 14. Using a CPAP device, a method for detecting the presence of a flow restriction or a type of apnea in the patient comprising: delivering an airflow directed toward the patient's airway,determining whether air is flowing in the patient's airway by generating a signal representing patient breathing;if air is flowing in the patient's airway, determining whether the patient's airway has a flow restriction; andif air is not flowing in the patient's airway, initiating an oscillating pressure waveform for a time period to determine whether conditions point to the presence of an obstructive apnea or a central apnea;wherein a flow restriction or a type of apnea is detected based upon a function of said signal representing patient breathing. 15. The method of claim 14 wherein, upon determining the presence of a flow restriction or determining the presence of an apnea, introducing a delay followed by delivering an airflow with an oscillating pressure waveform. 16. The method of claim 14 wherein the step of determining whether air is flowing in the patient's airway includes determining leak and subtracting said leak from said delivered airflow. 17. The method of claim 14 wherein the step of determining whether the patient's airway has a flow restriction includes linearizing a signal representing flow in the patient's airway. 18. The method of claim 14 wherein at least one condition which points to the presence of an obstructive apnea or a central apnea represents a parameter which exceeds a fixed threshold. 19. The method of claim 14 wherein, upon determining the presence of a flow restriction or determining the presence of an apnea, delivering an airflow with an oscillating pressure waveform of known frequency and magnitude. 20. An apparatus for detecting flow restrictions and types of apneas in a patient comprising: means for delivering an airflow directed toward a patient's airway;a flow sensor for determining whether air is flowing in the patient's airway by generating a signal representing patient breathing; anda processor coupled to said flow sensor and said means for delivering an airflow;wherein said processor is programmed to detect flow restrictions and apneas and their types(1) by determining if air is flowing in the patient's airway;(2) if air is flowing in the patient's airway, determining whether the patient's airway has a flow restriction; and(3) if air is not flowing in the patient's airway, initiating an oscillating pressure waveform for a time period to determine whether conditions point to the presence of an obstructive apnea or a central apnea; andwherein a flow restriction or a type of apnea is detected based upon a function of said signal representing patient breathing. 21. The apparatus of claim 20 wherein upon determining the presence of a flow restriction or determining the presence of an apnea, introducing a delay followed by said means delivering an oscillating pressure waveform. 22. The apparatus of claim 20 wherein determining whether air is flowing in the patient's airway includes determining leak and subtracting said leak from said airflow. 23. The apparatus of claim 20 wherein determining whether the patient's airway has a flow restriction includes linearizing a signal representing flow in the patient's airway. 24. The apparatus of claim 20 wherein at least one condition which points to the presence of an obstructive apnea or a central apnea represents a parameter which exceeds a fixed threshold. 25. The apparatus of claim 20 wherein upon determining the presence of a flow restriction or determining the presence of an apnea, said means delivering an oscillating pressure waveform of known frequency and magnitude.

이 특허에 인용된 특허 (170)

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Gattinoni Luciano (Via Porpora 187 Milan ITX), Pulmonary pressure and volume measurement.
상세보기
Durkan Gerald (Altoona PA), Respirating gas supply method and apparatus therefor.
상세보기
Manus Eugene A. (1005 Kentwood Dr. Blacksburg VA 24060) Wiley Paris H. (1907 Ceder Brooke Dr. Lutz FL 33549), Respiration and heart rate monitoring apparatus.
상세보기
Raemer Daniel B. (Brookline MA), Respiration detector.
상세보기
McKenna Kevin (58 W. Gradwell Ave. Maple Shade NJ 08052), Respiration monitor.
상세보기
Kearns Kenneth L. (12822 N. 26th Dr. Phoenix AZ 85029), Respiration monitor and x-ray triggering apparatus.
상세보기
McDonald ; Jr. Lewis D. (701-17th Ave. Seattle WA 98122), Respiration sensor set.
상세보기
Hakkinen Taisto (Hameenlinna FIX), Respiration therapy apparatus.
상세보기
Beck Donald C. (18 Wood Glen Way Boonton NJ 07005) Mick Peter R. (4 Stonybrook Trail Kinnelon NJ 07405), Respiration-signalling device.
상세보기
Olsson Sven-Gunnar (Arloev SEX) Rydgren Goeran (Bunkeflostrand SEX) Linden Dan (Stockholm SEX), Respirator having a trigger sensitivity dependent on the patient gas flow.
상세보기
Anderson Stephen T. (Stillwater MN) Anderson Catherine A. (Stillwater MN), Respiratory analyzer system.
상세보기
Campbell ; Jr. William G. (2019 Orangeview La. Orange CA 92667), Respiratory and cardiac monitor.
상세보기
Jaffe Michael B. (Anaheim CA) Luper Charles R. (Anaheim CA) Mabry Eric (Westminster CA) Reid Howard J. (Brea CA), Respiratory gas analysis instrument having improved volume calibration method and apparatus.
상세보기
Sanso David W. (701 Harlan-E38 Lakewood CO 80214), Respiratory gas supply apparatus and method.
상세보기
Schebler Bernard J. (Davenport IA), Selector valve for an aircraft on board oxygen generation system with high pressure oxygen backup.
상세보기
Daigle Louis J. L. (Manchester CT), Sensor and meter for measuring the mass flow of a fluid stream.
상세보기
Bowers David L. (La Mesa CA) Kienle Gunther W. (El Cajon CA), Sleep apnea monitor.
상세보기
Karakasoglu Ahmet ; Hung Chin N. ; Matouk Anthony F. ; Grotte Lawrence C., Sleep apnea screening and/or detecting apparatus and method.
상세보기
Estes Mark C. (Irwin PA) Cattano Janice M. (Gibsonia PA), Sleep apnea treatment apparatus.
상세보기
Estes Mark C. (Irwin PA) Cattano Janice M. (Gibsonia PA), Sleep apnea treatment apparatus.
상세보기
Mechlenburg Douglas M. (Pittsburgh PA) Kimmel Steven A. (Greensburg PA) Fiore John H. (Pittsburgh PA), Sleep apnea treatment apparatus.
상세보기
Ogino Hiroyuki (Nara JPX), Sleep detecting apparatus.
상세보기
Froehlich James P. (Berlin PA) Mitchell Joseph N. (Rockwood PA) Jones Stephen M. (Turtle Creek PA), Standby control for CPAP apparatus.
상세보기
Kimm Gardner J. (Carlsbad CA) Gee Glen N. (Encinitas CA) Fennema Paul J. (Fallbrook CA) Sanborn Warren G. (Escondido CA), System and method for flow triggering of pressure supported ventilation by comparison of inhalation and exhalation flow.
상세보기
Sackner Marvin A. (300 W. Rivo Alto Dr. Miami Beach FL 33139), System for non-invasive detection of changes of cardiac volumes and aortic pulses.
상세보기
Brisson A. Glen (Arlington Heights IL), Temperature control system with alarm and shut down for non-tracking condition of dual thermometers.
상세보기
Eichler, Rudiger, Testing of the airways and pulmonary tract of a patient, particularly for sensitivity to aerosols.
상세보기
Wilkinson Mark A. (Marietta GA), Thermistor airflow sensor assembly.
상세보기
Pearce Stephen D. (14 Malabu Dr. Highland Heights KY 41076), Transducer for detecting apnea.
상세보기
McWilliams Roger D. (San Diego CA), Triggering of patient ventilator responsive to a precursor signal.
상세보기
Hkkinen Taisto (Hmeenlinna FIX), Ultrasonic atomizer.
상세보기
Holscher Russell L. (Olathe KS), Valve for use with inhalation/exhalation respiratory phase detection circuit.
상세보기
Osborn ; John J., Variable orifice gas flow sensing head.
상세보기
McKelvey Wilfred G. (Palos Verdes CA), Variable pitch axial fan.
상세보기
Weismann Dieter (Gross Gronau DEX) Colla Gregory-Alan (North Sydney AUX) Fiebelkron Dirk (Lubeck DEX), Ventilating system for supplying a patient with respiratory gas and method for triggering the respiratory phases in said.
상세보기
Visveshwara Nadarasa (Fresno CA) Freeman Bruce J. (Fresno CA), Ventilation synchronizer.
상세보기
Olsson Sven-Gunnar (Arloev SEX) Dahlstreom Bo (Vaellingby SEX) Rydgren Goeran (Bunkeflostrand SEX) Cewers Goeran (Lund SEX), Ventilator.
상세보기
Bird Forrest M. (P.O. Box 817 Sandpoint ID 83864), Ventilator and oscillator for use therewith and method.
상세보기
Halpern Arieh S. (Riverside CA) Oltean Ioan T. (Corona CA), Ventilator control system using sensed inspiratory flow rate.
상세보기
Rowland Robert O. (Hemet CA), Ventilator monitor and alarm apparatus.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Distinguishing between closed and open airway apneas and treating patients accordingly 원문보기

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Distinguishing between closed and open airway apneas and treating patients accordingly 원문보기

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전체(0) 논문(0) 특허(0) 보고서(0)

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