[특허]Medical ventilator

Medical ventilator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A62B-009/02
출원번호	US-0406914 (1989-09-13)
발명자 / 주소	DeVires Douglas F. (Redlands CA) Baker Lindon A. (Santa Ana CA)
출원인 / 주소	Bird Products Corporation (Riverside CA 02)
인용정보	피인용 횟수 : 65 인용 특허 : 0

초록 ▼

A medical ventilator having a valve which controls the flow of gas from a pressurized gas source to a patient for inhalation. Flow through the valve is choked and pressure upstream of the valve is held stable so that a known relationship exists between the position of the valve and the flow rate through the valve. An open loop control system causes the valve to open or close as needed to deliver a preselected tidal volume of gas to the patient on each breath. Since the flow rate is known, no feedback to the controller regarding actual flow conditions is required. The exact positioning of the valve and length of time that the valve is to be held open is predetermined by the controller before the breath is delivered, and is repeated for subsequent breaths. Preferably, the valve is driven by a stepping motor, and the controller comprises a microcomputer. The controller compensates for ramping of the stepping motor as the valve opens and closes in determining the positions of the valve required to deliver the preselected tidal volume. To ensure precise engagement between a valve member and a valve seat, the valve member is mounted on a flexible, linear wire. Additionally, a spirally-wound spring surrounds a stepping motor shaft and biases the shaft so as to close the valve in the event of a power loss.

대표청구항 ▼

A method of ventilating in which a breath of a predetermined tidal volume is delivered at a variable flow rate to a patient whose breathing ability is impaired, the flow rate rapidly increasing during the initial portion of the breath and rapidly decreasing during the final portion of the breath, the tidal volume of the delivered breath being made substantially equal to a preselected tidal volume by taking into account and compensating for the variability of the flow rate at which the breath is delivered, said method comprising the steps of: (a) providing a breath delivery period based upon the preselected tidal volume, the undelivered volume that would be lost during the increase of the flow rate during the initial portion of the breath, the extra volume that would be delivered during the decrease of the flow rate during the final portion of the breath, and a peak flow rate, the contribution of the undelivered volume that would be lost increasing the breath delivery period and the contribution of the extra volume that would be delivered decreasing the breath delivery period; and (b) after said providing step, delivering a complete breath at a pre-determined variable flow rate to a patient using the breath delivery period provided in step (a) whereby the actual tidal volume delivered to the patient substantially equals the preselected tidal volume.

이 특허를 인용한 특허 (65)

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McAuliffe, Patrick John; Bullock, Denis Leslie, Flow diverter for controlling the pressure and flow rate in CPAP device.
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McAuliffe,Patrick J.; Bullock,Denis L., Flow diverter for controlling the pressure and flow rate in CPAP device.
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McAuliffe, Patrick J.; Bullock, Denis L., Flow diverter for controlling the pressure and flow rate in a CPAP device.
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McAuliffe, Patrick J.; Bullock, Denis L., Flow diverter for controlling the pressure and flow rate in a CPAP device.
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Cortez, Jr., Felino V.; Niland, William F.; McGarrity, George; Buyer, Carl; Miller, Kenneth; Boyd, Peter, Humidifier for breathing gas heating and humidification system.
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Wondka, Anthony, Method and device for non-invasive ventilation with nasal interface.
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Rubsamen Reid M. (Berkeley CA) Johansson Eric T. (Dublin CA), Method for releasing controlled amount of aerosol medication.
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Rubsamen Reid M. ; Johansson Eric T., Method for releasing controlled amount of aerosol medication.
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Freitag, Lutz; Wondka, Anthony; Kapust, Gregory; Bryan, Robert; Khenansho, Michael; Gerber, Anthony, Methods and devices for minimally invasive respiratory support.
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Allum, Todd A.; Wondka, Anthony D.; Cipollone, Joseph; Freitag, Lutz, Methods and devices for providing mechanical ventilation with an open airway interface.
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Wondka, Anthony D.; Bryan, Robert F.; Freitag, Lutz; McCall, Mark; Tran, Cuong Q., Methods and devices for sensing respiration and controlling ventilator functions.
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Wondka, Anthony D.; Bryan, Robert F.; McCall, Mark; Tran, Cuong Q., Methods and devices for sensing respiration and controlling ventilator functions.
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Wondka, Anthony; Kapust, Gregory; Bryan, Robert; Khenansho, Michael, Methods and devices for sensing respiration and providing ventilation therapy.
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Wondka, Anthony; Kapust, Gregory, Methods and devices for treating sleep apnea.
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Esmaeil-zadeh-azar, Farhad, Methods and systems for breath delivery synchronization.
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Milne, Gary, Methods and systems for volume-targeted minimum pressure-control ventilation.
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Bonassa, Jorge; De Lima Santos, Adriano; Calvo Lonardoni, José Augusto; Coutinho Melco, Tito, Methods for controlling mechanical lung ventilation.
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Bonassa, Jorge; De Lima Santos, Adriano; Calvo Lonardoni, José Augusto; Coutinho Melco, Tito, Methods for controlling mechanical lung ventilation.
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Wondka, Anthony D.; Cipollone, Joseph; Kassanis, George A.; Allum, Todd W.; Brambilla, Enrico, Methods, systems and devices for humidifying a respiratory tract.
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Wondka, Anthony D.; Cipollone, Joseph; Kassanis, George A.; Allum, Todd W.; Brambilla, Enrico, Methods, systems and devices for humidifying a respiratory tract.
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Wondka, Anthony D., Methods, systems and devices for improving ventilation in a lung area.
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Wondka, Anthony David, Methods, systems and devices for improving ventilation in a lung area.
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Kapust, Gregory; Cipollone, Joseph; Wondka, Anthony D.; Gerber, Anthony; Allum, Todd; Eghbal, Darius; Aguirre, Joey; Kassanis, George A., Methods, systems and devices for non-invasive open ventilation for providing ventilation support.
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Kapust, Gregory; Allum, Todd; Wondka, Anthony D.; Cipollone, Joseph; Gerber, Anthony; Eghbal, Darius; Aguirre, Joey; Kassanis, George A., Methods, systems and devices for non-invasive open ventilation for treating airway obstructions.
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Kapust, Gregory; Allum, Todd; Wondka, Anthony D.; Cipollone, Joseph; Gerber, Anthony; Eghbal, Darius; Aguirre, Joey; Kassanis, George A., Methods, systems and devices for non-invasive open ventilation for treating airway obstructions.
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Cipollone, Joseph; Kapust, Gregory; Allum, Todd; Wondka, Anthony D.; Eghbal, Darius; Aguirre, Joey; Gerber, Anthony, Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles in free space.
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Kapust, Gregory; Allum, Todd; Wondka, Anthony D.; Cipollone, Joseph; Aguirre, Joey; Eghbal, Darius; Gerber, Anthony; Freitag, Lutz, Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube.
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Cipollone, Joseph; Aguirre, Joey; Allum, Todd; Eghbal, Darius; Wondka, Anthony D., Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature.
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Allum, Todd; Aguirre, Joey; Cipollone, Joseph; Eghbal, Darius; Kapust, Gregory; Wondka, Anthony D., Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature.
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Wondka, Anthony D.; Cipollone, Joseph; Allum, Todd W., Methods, systems and devices using LOX to provide ventilatory support.
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Masic, Milenko; Guy, Jon, Systems and methods for ventilation in proportion to patient effort.
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Freitag, Lutz; Wondka, Anthony D., Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer.
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Glenn, Gregory J.; Grant, Matthew Tyson, Ventilation triggering using change-point detection.
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Wondka, Anthony D.; King, Angela; Cipollone, Joseph, Ventilator with biofeedback monitoring and control for improving patient activity and health.
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DeVries, Douglas F.; Good, David M., Ventilator with integrated cough-assist.
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DeVries, Douglas F.; Good, David M.; Gaw, Shan E.; Cipollone, Joseph; Branson, Richard, Ventilator with integrated oxygen production.
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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
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연합인증

Medical ventilator 원문보기

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Medical ventilator 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (65)

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