[특허]Ultrasonic air-in-line detector for a medication infusion system

[미국특허] Ultrasonic air-in-line detector for a medication infusion system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-031/00
출원번호	US-0403512 (1989-09-05)
발명자 / 주소	Henke James L. (Simi Valley CA) Koenig Paul A. (Valencia CA)
출원인 / 주소	Pacesetter Infusion, Ltd. (Sylmar CA 02)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

An ultrasonic air-in-line detection system for use in detecting air bubbles in the fluid line of a disposable cassette mounted on a main pump unit is disclosed which can accurately detect air bubbles in any type of fluid, whether clear or opaque. The system uses a windowing technique to determine when a threshold amount of air bubbles in a predetermined volume of material pumped occurs, with the alarm being sounded only when this threshold amount of air bubbles is present in the window volume. The system of the present invention thus avoids so-called nuisance alarms due to the presence of small isolated air bubbles in the fluid due to the fluid pumped not having been degassed.

대표청구항 ▼

A system for detecting the presence of a significant amount of air in fluid passing through a fluid passageway, comprising: ultrasonic sensor means disposed adjacent said fluid passageway for providing an air-in-line output signal indicative of whether there is presently air or fluid in said fluid passageway at the location monitored by said ultrasonic sensor means; means for monitoring the volume pumped through said fluid passageway, said monitoring means providing a volume output signal indicative of the volume pumped; means, responsive to said air-in-line output signal and said volume output signal, for calculating the volume of air contained in the last predetermined volume pumped through said fluid passageway, said calculating means providing as an output the volume of air contained in the last predetermined volume pumped; and means for providing an alarm signal if the output from said calculating means is equal to or greater than a second predetermined volume.

이 특허를 인용한 특허 (23) 인용/피인용 타임라인 분석

Tokhtuev, Eugene; Owen, Christopher J.; Skirda, Anatoly; Slobodyan, Viktor; Pilipchenko, Anna, Acoustic fluid presence/absence detection.
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Cole Martin A. ; Lawless Michael W. ; Lynch Christopher D. ; Mo Frank S. C. ; Soberon Peter A., Air bubble sensor.
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Ruchti, Timothy L.; Markey, Brian G.; Belkin, Anatoly S.; Kotnik, Paul T.; Khair, Mohammad M., Air detection system and method for detecting air in a pump of an infusion system.
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Butterfield, Robert D.; Farquhar, Allen B., Apparatus and method for air-in-line detection.
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Butterfield,Robert D.; Farquhar,Allen B., Apparatus and method for air-in-line detection.
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Wright, Nigel; Magargi, III, Samuel Ernest; Harbaugh, Jeremy Thomas; Zang, Michael John; Winniewicz, Regis Joseph; Beri, Joseph Stephen; Zatezalo, Douglas Mark; Monahan, Tom; Fox, Ronald Robert, Controlling an ultrasonic transmitter.
상세보기
Wright, Nigel; Magargi, III, Samuel Ernest; Harbaugh, Jeremy Thomas; Zang, Michael John; Winniewicz, Jr., Regis Joseph; Beri, Joseph Stephen; Zatezalo, Douglas Mark; Monahan, Tom; Fox, Ronald Robert, Determining the absence or presence of fluid in a dialysis system.
상세보기
Wright, Nigel; Magargi, III, Samuel Ernest; Harbaugh, Jeremy Thomas; Zang, Michael John; Winniewicz, Jr., Regis Joseph; Beri, Joseph Stephen; Zatezalo, Douglas Mark; Monahan, Tom; Fox, Ronald Robert, Dialysis medical system with a portable control unit.
상세보기
Wright, Nigel; Magargi, III, Samuel Ernest; Harbaugh, Jeremy Thomas; Zang, Michael John; Winniewicz, Jr., Regis Joseph; Beri, Joseph Stephen; Zatezalo, Douglas Mark; Monahan, Tom; Fox, Ronald Robert, Dialysis medical system with a portable control unit.
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Dam, Naim; Crnkovich, Martin Joseph; Levin, Roland, Dialysis systems including non-invasive multi-function sensor systems.
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Lawless Michael W. ; Soberon Peter A. ; Scherer Andrew J. ; Squarcia Stephanie R., Drug infusion pumping cassette latching mechanism.
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Giebler Fritz,DEX, Infusion hose for an infusion device with a bubble detector.
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Oruklu, Meriyan; Ruchti, Timothy L.; Kotnik, Paul T.; Belkin, Anatoly S., Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system.
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Hague Clifford W. (Canyon Country CA) Koenig Paul A. (Valencia CA), Infusion system with air-in-line clear function.
상세보기
Wright, Nigel; Magargi, III, Samuel Ernest; Harbaugh, Jeremy Thomas; Zang, Michael John; Winniewicz, Jr., Regis Joseph; Beri, Joseph Stephen; Zatezalo, Douglas Mark; Monahan, Tom; Fox, Ronald Robert, Medical tubing installation detection.
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Johnson, Thomas D.; Fathallah, Marwan A.; Baek, Kyusuk, Method of varying the flow rate of fluid from a medical pump and hybrid sensor system performing the same.
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Oruklu, Meriyan; Ruchti, Timothy L.; Kotnik, Paul T.; Belkin, Anatoly S.; Markey, Brian G., Multi-sensor infusion system for detecting air or an occlusion in the infusion system.
상세보기
Sur, Kunal; Kotnik, Paul T.; Belkin, Anatoly S.; Dumas, III, John Hicks; Ruchti, Timothy L., Pattern recognition system and method for the detection of stuck fluid droplets in a fluid delivery line of an infusion system.
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Voltenburg, Jr., Robert R.; Thompson, Loren M., Peristaltic pump and removable cassette therefor.
상세보기
Ruchti, Timothy L.; Khair, Mohammad M., System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy.
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Blomquist, Michael, Systems and methods to address air, leaks and occlusions in an insulin pump system.
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Blomquist, Michael, Systems and methods to address air, leaks and occlusions in an insulin pump system.
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Bloom Nicole D. ; Kamen Dean L. ; Lanigan Richard ; Grinnell Charles M. ; Grant Kevin, Vial loading method and apparatus for intelligent admixture and delivery of intravenous drugs.
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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

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[미국특허] Ultrasonic air-in-line detector for a medication infusion system 원문보기