Apparatus for supplying respiratory gas and a method for controlling the apparatus
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-016/16
A61M-016/10
출원번호
US-0185966
(2014-02-21)
등록번호
US-10112027
(2018-10-30)
우선권정보
DE-101 39 881 (2001-08-20)
발명자
/ 주소
Meier, Jörg
출원인 / 주소
ResMed R&D Germany GmbH
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
0인용 특허 :
108
초록▼
An apparatus for supplying a respiratory gas includes a conveyor device for conveying the respiratory gas, a conduit for feeding the respiratory gas to a person, and a humidification device for humidifying the respiratory gas. A sensor device is configured to generate a signal indicative of the resp
An apparatus for supplying a respiratory gas includes a conveyor device for conveying the respiratory gas, a conduit for feeding the respiratory gas to a person, and a humidification device for humidifying the respiratory gas. A sensor device is configured to generate a signal indicative of the respiratory gas humidity and a control device is configured to control the humidification device with regard to the signal A method of supplying a respiratory gas to a patient, in which the respiratory gas is introduced by means of a conveyor device into the conduit leading to the patient and is humidified, includes operating the conveyor device so that a respiratory gas pressure which is above ambient pressure is provided in the conduit, and adjusting the humidity on the basis of signals indicative of the relative and/or absolute humidity of the respiratory gas generated by the sensor device.
대표청구항▼
1. An apparatus configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of the patient's nares throughout the patient's respiratory cycle while the patient is sleeping
1. An apparatus configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of the patient's nares throughout the patient's respiratory cycle while the patient is sleeping to ameliorate sleep disordered breathing, the apparatus comprising: a blower configured to positively pressurize the breathable gas to a predetermined level;a humidifier configured to humidify the breathable gas; anda controller configured to (1) distinguish between the patient's expiratory breathing phase and the patient's inspiratory breathing phase based on at least one breathable gas control parameter evaluated during the patient's expiratory breathing phase and the patient's inspiratory breathing phase and (2) regulate humidity of the breathable gas as a function of at least one measured inspiratory value of the at least one breathable gas control parameter, the at least one measured inspiratory value corresponding to the patient's inspiratory breathing phase,wherein the controller is configured to disregard measured expiratory values associated with the at least one breathable gas control parameter when regulating the humidity of the breathable gas, the measured expiratory values corresponding to the patient's expiratory breathing phase. 2. The apparatus of claim 1, wherein the controller is configured to evaluate the at least one breathable gas control parameter over a predetermined time interval that includes at least one cycle of the patient's inspiratory breathing phase and the patient's expiratory breathing phase. 3. The apparatus of claim 2 further comprising a patient interface configured to sealingly engage the patient's face and deliver the humidified breathable gas from the humidifier to the patient's airways, wherein the at least one breathable gas control parameter includes at least one of: volume flow of the breathable gas, temperature of the breathable gas, humidity of the breathable gas, concentration levels of the breathable gas, a predetermined therapy pressure, pressure of the breathable gas at the patient interface, a difference between the predetermined therapy pressure and the pressure of the breathable gas at the patient interface, polysomnographic parameters of the patient, ambient conditions, sleep phase, and mathematical control values. 4. The apparatus of claim 3, wherein the polysomnographic parameters include at least one of: snoring, heart rate oxygen saturation, body position and neck position. 5. The apparatus of claim 3, wherein the ambient conditions include at least one of: air pressure, temperature and humidity. 6. A CPAP system configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of the patient's nares throughout the patient's respiratory cycle while the patient is sleeping to ameliorate sleep disordered breathing, the CPAP system comprising: the apparatus of claim 1;a patient interface configured to sealingly engage an area adjacent the entrance to the patient's airways; andan air circuit configured to deliver the breathable gas to the patient interface. 7. The CPAP system of claim 6, further comprising a sensing device positioned at the patient interface and in communication with the controller of the apparatus, the sensing device being configured to sense at least one of humidity and temperature of the breathable gas. 8. A method for delivering a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of the patient's nares throughout the patient's respiratory cycle while the patient is sleeping to ameliorate sleep disordered breathing, the method comprising: positively pressurizing the breathable gas to a predetermined level;distinguishing between the patient's expiratory breathing phase and the patient's inspiratory breathing phase based on at least one breathable gas control parameter evaluated during the patient's expiratory breathing phase and the patient's inspiratory breathing phase;regulating humidity of the breathable gas as a function of at least one measured inspiratory value of the at least one breathable gas control parameter, the at least one measured inspiratory value corresponding to the patient's inspiratory breathing phase; anddelivering the breathable gas to the patient,wherein measured expiratory values associated with the at least one breathable gas control parameter are disregarded when regulating the humidity of the breathable gas, the measured expiratory values corresponding to the patient's expiratory breathing phase. 9. The method of claim 8, wherein the at least one breathable gas control parameter is evaluated over a predetermined time interval that includes at least one cycle of the patient's inspiratory breathing phase and the patient's expiratory breathing phase. 10. The method of claim 9, wherein the at least one breathable gas control parameter includes at least one of: volume flow of the breathable gas, temperature of the breathable gas, humidity of the breathable gas, concentration levels of the breathable gas, a predetermined therapy pressure, pressure of the breathable gas at a patient interface, a difference between the predetermined therapy pressure and the pressure of the breathable gas at the patient interface, polysomnographic parameters of the patient, ambient conditions, sleep phase, and mathematical control values. 11. The method of claim 10, wherein the polysomnographic parameters include at least one of: snoring, heart rate oxygen saturation, body position and neck position. 12. The method of claim 10, wherein the ambient conditions include at least one of: air pressure, temperature and humidity. 13. An apparatus configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of the patient's nares throughout the patient's respiratory cycle while the patient is sleeping to ameliorate sleep disordered breathing, the apparatus comprising: a blower configured to positively pressurize the breathable gas to a predetermined level;a humidifier configured to humidify the breathable gas;a sensing device configured to sense humidity of the pressurized breathable gas; anda controller configured to (1) distinguish between the patient's expiratory humidity state and the patient's inspiratory humidity state based on humidity values sensed by the sensing device during the patient's inspiratory and expiratory breathing phases and (2) regulate humidity of the pressurized breathable gas based on the inspiratory humidity state,wherein the controller is configured to disregard the humidity values sensed by the sensing device during the patient's expiratory breathing phase when regulating the humidity of the breathable gas. 14. The apparatus of claim 13, wherein the controller is configured to distinguish between the patient's expiratory and inspiratory humidity states based on maxima and/or minima humidity levels sensed by the sensing device. 15. The apparatus of claim 13 further comprising a patient interface configured to sealingly engage the patient's face and deliver the humidified breathable gas from the humidifier to the patient's airways, wherein the controller is configured to determine the expiratory humidity state and the inspiratory humidity state based on at least one breathable gas control parameter, the at least one breathable gas control parameter including at least one of: volume flow of the breathable gas, temperature of the breathable gas, humidity of the breathable gas, concentration levels of the breathable gas, a predetermined therapy pressure, pressure of the breathable gas at the patient interface, a difference between the predetermined therapy pressure and the pressure of the breathable gas at the patient interface, polysomnographic parameters of the patient, ambient conditions, sleep phase, and mathematical control values. 16. The apparatus of claim 15, wherein the polysomnographic parameters include at least one of: snoring, heart rate oxygen saturation, body position and neck position. 17. The apparatus of claim 15, wherein the ambient conditions include at least one of: air pressure, temperature and humidity. 18. A CPAP system configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of the patient's nares throughout the patient's respiratory cycle while the patient is sleeping to ameliorate sleep disordered breathing, the CPAP system comprising: the apparatus of claim 13;a patient interface configured to sealingly engage an area adjacent the entrance to the patient's airways; andan air circuit configured to deliver the breathable gas to the patient interface. 19. The CPAP system of claim 18, wherein the sensing device is positioned at the patient interface.
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Winn Bryan D. (Bryan Winn & Associates ; 6812 Alamo Downs Pkwy. San Antonio TX 78238) Waugh ; Jr. Howard J. (HCR Box 148B Bigfoot TX 78005), Apparatus and method for a ventilator system.
Dinauer William R. (Waunakee WI) Otis David R. (Madison WI) El-Wakil Mohamed M. (Madison WI) Vignali John C. (Waunakee WI) Macaulay Philip D. (Madison WI), Apparatus and methods for humidity control.
Dobson Darwin B. (Sun Prairie WI) Keefe Gregg D. (Boulder CO) Ogden Douglas R. (Arvada CO) Smith ; III Eugene P. (Westminster CO), Humidifier for a ventilator.
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Virr, Alexander; Smith, Ian Malcolm; Lithgow, Perry David; Jones, Richard Llewelyn; Cheung, Andrew, Humidifier with structure to prevent backflow of liquid through the humidifier inlet.
Salmon Andrew P. M. (Auckland NZX) Stewart David P. (Auckland NZX) Daniell Michael G. (Auckland NZX), Humidifiers with control systems to prevent condensation.
Elsworth Adrian J. (Auckland NZX) Daniell Michael G. (Auckland NZX) Zwaan Paul (Auckland NZX) Stewart David P. M. (Auckland NZX), Methods of and/or apparatus for humidifying gases.
Offir, Yigal; Powers, Jr., Paul J.; Barker, Robert A.; Bihani, Nalini; Silveira, Ricardo; Xu, Danny J., Modular performance indicator for a humidifier.
Tuitt, Patrick W.; Lordo, Richard J.; Gesner, Joseph J., Pressure support system and method and a pressure control valve for use in such system and method.
Shaffer Thomas H. (Lansdowne PA) Wolfson Marla R. (Philadelphia PA), Process control and apparatus for ventilation procedures with helium and oxygen mixtures.
Clawson Burrell E. (823 W. 16th Newport Beach CA 92663) Weigl James (2241 Chicago Ave. Riverside CA 92507), Respiratory gas heating and humidifying methods and apparatus.
Mechlenburg Douglas M. (Pittsburgh PA) Kimmel Steven A. (Greensburg PA) Fiore John H. (Irwin PA), Sleep apnea treatment apparatus and passive humidifier for use therewith.
Mechlenburg Douglas M. (Pittsburgh PA) Kimmel Steven A. (Greensburg PA) Fiore John H. (Irwin PA), Sleep apnea treatment apparatus and passive humidifier for use therewith.
Clawson Burrell E. (2425 Sunset Dr. Riverside CA 92506) Weigl James (18815 Hermosa St. Riverside CA 92506), Tubing circuit systems for humidified respiratory gas.
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