[특허]Variable orifice pulse valve

[미국특허] Variable orifice pulse valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-016/00
출원번호	US-0961338 (1997-10-30)
발명자 / 주소	Heinonen Erkki,FIX
출원인 / 주소	Instrumentarium Corporation, FIX
대리인 / 주소	Andrus, Sceales, Starke & Sawall
인용정보	피인용 횟수 : 44 인용 특허 : 8

초록 ▼

A variable orifice pulse valve has a small internal volume for providing small, accurately measured pulse volumes of gas. The valve may be employed to supply a very small quantity of a therapeutic gas or a diagnostic gas into the breathing gases of a patient. The valve has a housing with an inlet for receiving the gas and an outlet providing the pulsatile discharge of the gas. A chamber, formed in the housing, has a first opening in fluid communication with the inlet and a second opening in fluid communication with the outlet. The intermediate chamber is formed to have a small volume compared to the minimum pulsatile gas discharge volume of the valve. A spring biases a variable orifice member toward the first opening and a solenoid moves the variable orifice member away from the first opening to form an orifice that meters a dose of gas into the valve. A sealing member is spring biased into sealing engagement with the second opening. A second control solenoid operates to move the second sealing member out of engagement with the second opening to form a pulse orifice in the valve that provides the pulsatile discharge of gas from the outlet. An outlet chamber of the valve may include a further inlet providing a carrier gas that sweeps the gas pulse exiting from the intermediate chamber out of the valve to prevent the gas pulse from being trapped in the valve.

대표청구항 ▼

[ I claim:] [1.] A unitary, variable orifice pulse valve comprising:a housing having an inlet for receiving gas and an outlet discharging gas from the valve;a chamber formed in said housing intermediate the inlet and outlet of said housing, said intermediate chamber having a first opening in fluid communication with one of said inlet and outlet and a second opening in fluid communication with the other of said outlet and inlet;variable orifice forming means in said housing relatively movable with respect said first opening of said chamber;first operating means operatively associated with said variable orifice forming means, said first operating means moving said variable orifice forming means with respect to said first opening responsive to a variable magnitude signal applied to said first operating means to cause said variable orifice forming means to form a variably sized orifice at said first opening for metering a quantity of gas, the size of said orifice being proportional to the magnitude of the signal;sealing means in said housing relatively movable with respect to said second opening of said chamber for sealing and unsealing said second opening;means for urging said sealing means into sealing engagement with said second opening to block fluid communication through said second opening; andsecond operating means operatively associated with said sealing means, said second operating means being responsive to a signal applied thereto to move said sealing means out of engagement with said second opening for a period of time to provide a discharge of gas from said valve.

이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

Krebs Christian (Vienna ATX), Apparatus for the monitored metering of no into patients\respiratory air.
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Fry Stanley E. (Riverside CA) Hurd Claude C. (Riverside CA), Gas flow rate control device for medical ventilator.
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Yarnall Stephen T. ; Winter David P. ; Van Wagner Bruce, Magnetic exhalation valve with compensation for temperature and patient airway pressure induced changes to the magnetic.
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Sever Robert E. (Florissant MO) Scharfenberg Randolph E. (Manchester MO), Multiple flow rate fluid control valve assembly.
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Bathe Duncan P. L. (Madison WI) Kohlmann Thomas S. (McFarland WI) Pinkert John R. (Madison WI) Tham Robert Q. (Middleton WI), Nitric oxide delivery system.
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Higenbottam Timothy William,GB2 ITX S10 2RX, Nitric oxide treatment.
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Winter David P., Spring piloted safety valve with jet venturi bias.
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Bird Forrest M., Ventilator having an oscillatory inspiratory phase and method.
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Brister, Mark; Brauker, James; Dobbles, J. Michael, Analyte sensor.
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Brister, Mark; Masterson, Steve; Dobbles, J. Michael; Mensinger, Michael Robert; Saint, Sean; Kamath, Apurv Ullas; Brauker, James; Thrower, James Patrick, Analyte sensor.
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Brister, Mark; Saint, Sean; Petisce, James R.; Shults, Mark; Leach, Jacob S.; Wong, David K.; Woo, Kum Ming, Analyte sensor.
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Brister, Mark; Saint, Sean; Swanson, Vance; Quintana, Nelson, Analyte sensor.
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Brister, Mark; Shults, Mark; Saint, Sean; Petisce, James R.; Wong, David K.; Woo, Kum Ming, Analyte sensor.
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Brister, Mark; Simpson, Peter, Analyte sensor.
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Brister, Mark; Simpson, Peter C.; Kamath, Apurv Ullas; Leach, Jacob S.; Swanson, Vance; Saint, Sean; Nolting, John, Analyte sensor.
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Dobbles, J. Michael; Brister, Mark, Analyte sensor.
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Kamath, Apurv Ullas; Leach, Jacob S.; Li, Ying; Rong, Daiting; Saint, Sean; Simpson, Peter C.; Brister, Mark, Analyte sensor.
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Li, Ying; Kamath, Apurv Ullas; Brister, Mark, Analyte sensor.
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Li, Ying; Kamath, Apurv Ullas; Yang, Richard C., Analyte sensor.
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Li, Ying; Kamath, Apurv Ullas; Yang, Richard C.; Brister, Mark C., Analyte sensor.
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Li, Ying; Kamath, Apurv Ullas; Yang, Richard C.; Brister, Mark C., Analyte sensor.
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Shariati, Mohammad Ali; Li, Ying; Kamath, Apurv Ullas; Simpson, Peter C.; Yang, Richard C.; Brister, Mark, Analyte sensor.
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Shariati, Mohammad Ali; Li, Ying; Kamath, Apurv Ullas; Simpson, Peter C.; Yang, Richard C.; Brister, Mark, Analyte sensor.
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Shults, Mark; Kamath, Apurv U.; Brister, Mark; Wong, David K., Analyte sensor.
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Simpson, Peter C.; Boock, Robert J.; Kamath, Apurv Ullas; Wightlin, Matthew D.; Estes, Michael J., Analyte sensor.
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Simpson, Peter C.; Boock, Robert J.; Kamath, Apurv Ullas; Wightlin, Matthew D.; Estes, Michael J., Analyte sensor.
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Simpson, Peter C.; Brister, Mark; Leach, Jacob S., Analyte sensor.
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Simpson, Peter C.; Estes, Michael J.; Neale, Paul V.; Boock, Robert; Leach, Jacob S.; Yang, Richard C., Analyte sensor.
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[미국특허] Variable orifice pulse valve 원문보기

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이 특허를 인용한 특허 (44) 인용/피인용 타임라인 분석

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이 특허에 인용된 특허 (8) 인용/피인용 타임라인 분석

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