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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0798949 (2013-03-13) |
등록번호 | US-9981096 (2018-05-29) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 486 |
This disclosure describes systems and methods for providing novel back-up ventilation that allows the patient to trigger or initiate the delivery of breath. Further, this disclosure describes systems and methods for triggering ventilation when base flow and/or inspiratory flow is unknown or indeterm
This disclosure describes systems and methods for providing novel back-up ventilation that allows the patient to trigger or initiate the delivery of breath. Further, this disclosure describes systems and methods for triggering ventilation when base flow and/or inspiratory flow is unknown or indeterminable by the ventilator.
1. A method for ventilating a patient with a ventilator, comprising: delivering a fixed base flow that is indeterminable with the ventilator;monitoring an exhalation flow during exhalation based on data from an expiratory flow sensor;monitoring accumulator pressure during exhalation based on data fr
1. A method for ventilating a patient with a ventilator, comprising: delivering a fixed base flow that is indeterminable with the ventilator;monitoring an exhalation flow during exhalation based on data from an expiratory flow sensor;monitoring accumulator pressure during exhalation based on data from an accumulator pressure sensor;estimating a base flow during exhalation based on the data from the accumulator pressure sensor with a controller;detecting a flow deviation based on the estimated base flow and the monitored exhalation flow with the controller;comparing the flow deviation to an inspiratory trigger threshold by the controller; andtriggering inspiration with the ventilator based on the comparison by the controller. 2. The method of claim 1, wherein the fixed base flow is indeterminable because of at least one of the following conditions: an absence of an inspiratory flow sensor;a malfunction of the inspiratory flow sensor;a malfunction that prevents utilization of the inspiratory flow sensor;an inspiratory module malfunction; anda malfunction that deactivates at least one of a data measurement subsystem and a data acquisition subsystem. 3. The method of claim 1, further comprising: determining a stable portion of exhalation based at least on the monitored exhalation flow, wherein the flow deviation must be detected during the stable portion of exhalation. 4. The method of claim 3, wherein the stable portion of exhalation is a time during exhalation when a slope of patient exhalation flow is about zero after a restricted period. 5. The method of claim 3, wherein the stable portion of exhalation occurs when (Max(Pe)−Min(Pe))<1.5 cm H2O) and (Max(Qe)−Min(Qe))<1.5 LPM) for each computation cycle, wherein Max(Pe) is maximum exhalation pressure,wherein Min(Pe) is minimum exhalation pressure,wherein Max(Qe) is maximum exhalation flow, andwherein Min(Qe) is minimum exhalation flow. 6. The method of claim 1, wherein the inspiratory trigger threshold is a change in flow rate. 7. The method of claim 6, wherein the change is at least 5 LPM. 8. The method of claim 1, wherein the flow deviation is the monitored exhalation flow subtracted from the estimated base flow each measured at a same time period. 9. The method of claim 1, wherein the comparison shows that the flow deviation is greater than the inspiratory trigger threshold. 10. A non-transitory computer-readable medium having computer-executable instructions for performing a method of ventilating a patient with a ventilator, the method comprising: repeatedly delivering a fixed base flow that is indeterminable with a ventilator;repeatedly monitoring accumulator pressure during exhalation based on data from an accumulator sensor;repeatedly estimating a base flow during exhalation based on the data with a controller;repeatedly detecting a flow deviation based on the estimated base flow with a controller;repeatedly comparing the flow deviation to an inspiratory trigger threshold by the controller; andrepeatedly triggering inspiration with the ventilator based on the comparison by the controller.
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