[특허]Portable drag compressor powered mechanical ventilator

[미국특허] Portable drag compressor powered mechanical ventilator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-016/00 A62B-007/00 A62B-009/02 F16K-031/02
출원번호	US-0533545 (1995-09-25)
발명자 / 주소	DeVries Douglas F. (Yucaipa CA) Cegielski Michael J. (Norco CA) Graves Jr. Warner V. (Hemet CA) Williams Malcolm R. (San Clemente CA) Holmes Michael B. (Riverside CA)
출원인 / 주소	Bird Products Corporation (Palm Springs CA 02)
인용정보	피인용 횟수 : 103 인용 특허 : 0

초록 ▼

A ventilator device and system comprising a rotating compressor, preferably a drag compressor, which, at the beginning of each inspiratory ventilation phase, is accelerated to a sufficient speed to deliver the desired inspiratory gas flow, and is subsequently stopped or decelerated to a basal flow level to permit the expiratory ventilation phase to occur. The ventilator device is small and light weight enough to be utilized in portable applications. The ventilator device is power efficient enough to operate for extended periods of time on internal or external batteries. Also provided is an oxygen blending apparatus which utilizes solenoid valves having specific orifice sizes for blending desired amounts of oxygen into the inspiratory gas flow. Also provided is an exhalation valve having an exhalation flow transducer which incorporates a radio frequency data base to provide an attendant controller with specific calibration information for the exhalation flow transducer.

대표청구항 ▼

A flow transducer for measuring the flow rate of a fluid, said transducer comprising: a housing defining a first fluid flow path therethrough; a deflectable flapper disposed transversely within said fluid flow path such that said flapper will deflect in the direction of fluid flow, thereby creating a fluid flow restriction permitting some fluid to flow pass said flapper and through said flow path; a first pressure port located upstream of said flapper for measuring the pressure of fluid within said flow path, upstream of said flapper; a second pressure port downstream of said flapper for measuring the pressure of fluid flowing through said flow path, downstream of said flapper; means associated with said first pressure port for determining the pressure of fluid flowing upstream of said flapper; means associated with said second pressure port for determining the pressure of fluid flowing downstream of said flapper; means for determining the difference between the pressure of fluid flowing upstream of said flapper and the pressure of fluid flowing downstream of said flapper; means for computing the flow rate of fluid through said flow path, based on the measured difference in pressures upstream and downstream of said flapper; said deflectable flapper comprising a rigid frame having a central aperture formed therein; a flat sheet of pliable material mounted within said frame member and forming a flapper disposed transversely within said central aperture of said frame and deflectable in at least one direction to permit fluid to flow pass said flapper and through said central aperture; said frame being mounted transversely within said flow path such that fluid flowing in a first direction through said flow path will strike said flapper thereby causing said flapper to deflect in the direction of flow such that the flowing fluid may pass through said central aperture; and a cushioning member associated with said flapper to distribute the force exerted on said flapper thereby distributing any stresses created within said flapper.

이 특허를 인용한 특허 (103) 인용/피인용 타임라인 분석

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DeLuca, Michael J.; Prilutsky, Yury; Steinberg, Eran; Corcoran, Peter; Bigioi, Petronel; Pososin, Alexei, Detecting red eye filter and apparatus using meta-data.
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Ciuc, Mihai, Detecting redeye defects in digital images.
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Steinberg, Eran; Prilutsky, Yury; Corcoran, Peter; Bigioi, Petronel, Digital image processing using face detection information.
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Winter, David Phillip; Sanborn, Warren G., Exhalation valve assembly with integral flow sensor.
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Winter, David Phillip; Sanborn, Warren G., Exhalation valve assembly with integral flow sensor.
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Nanu, Florin; Capata, Adrian; Steinberg, Eran; Corcoran, Peter; Bigioi, Petronel; Pososin, Alexei; Ciuc, Mihai, Two stage detection for photographic eye artifacts.
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[미국특허] Portable drag compressor powered mechanical ventilator 원문보기

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