[특허]Pneumatic demand oxygen valve

Pneumatic demand oxygen valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-016/00
출원번호	US-0013226 (1993-02-01)
발명자 / 주소	Carter William (Indianapolis IN)
출원인 / 주소	Puritan-Bennett Corporation (Overland Park KS 02)
인용정보	피인용 횟수 : 53 인용 특허 : 0

초록 ▼

A compact, simplified, totally pneumatic demand valve designed for coupling between a source of pressurized gas and a recipient user is provided which achieves a high degree of sensitivity and flow control without expensive, bulky valving arrangements characteristic of prior demand valves. Preferably, the demand valve includes a valve body presenting a gas flow passageway, together with pneumatically coupled sensing and slave diaphragms; the slave diaphragm is interposed in the flow passageway and prevents gas flow during the exhalation phases of the patient\s breathing cycle. During inhalation sensed by the sensing diaphragm, the slave diaphragm is shifted to open the gas flow passageway in the valve, thus permitting passage of gas to the patient. The valve is designed for coupling to a fixed orifice flow controller, which may be positioned either downstream or upstream of the valve as desired.

대표청구항 ▼

An apparatus for controlling discharge of oxygen from an oxygen supply source to a patient through a breathing line coupled to the patient as the patient inhales and exhales, the apparatus comprising means for conducting oxygen provided by an oxygen supply source through a supply passageway having a gas inlet for attachment to an oxygen supply source and a gas outlet for attachment to a breathing line, the conducting means including a valve seat in the supply passageway, means for storing a supply of oxygen extant in the supply passageway in a first chamber to develop a pressure head in the first chamber, the storing means including inlet means for admitting oxygen from the supply passageway into the first chamber and outlet means for discharging oxygen from the first chamber to the atmosphere, means for selectively blocking flow of oxygen through the supply passageway from the gas inlet to the gas outlet, the blocking means including a flexible diaphragm valve member including a first side communicating with oxygen admitted into the first chamber and a second side facing the valve seat in the supply passageway, the diaphragm valve member being mounted for movement between a flow-blocking position engaging the valve seat in the supply passageway and a flow-delivery position disengaging the valve seat in the supply passageway, the blocking means further includes spring means for yieldably biasing the diaphragm valve member toward its flow-delivery position, the spring means lying in the supply passageway, and control means for closing the outlet means in response to exhalation of a patient breathing through the gas outlet to store pressurized oxygen in the first chamber so that oxygen pressure in the first chamber acting against the first side of the diaphragm valve member will increase to move the diaphragm valve member to its flow-blocking position and opening the outlet means in response to inhalation of a patient breathing through the gas outlet to vent pressurized oxygen in the first chamber to the atmosphere through the outlet means so that oxygen pressure in the first chamber will decrease to allow pressurized oxygen in the supply passageway to move the diaphragm valve member away from the valve seat to its flow-delivery position.

이 특허를 인용한 특허 (53)

Buan, John S.; Schmidt, Matthew F.; Nordman, Catherine A., Automated control and conservation of supplemental respiratory oxygen.
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Laswick Ronald A,CAX ; Bowden Kevin D. J.,CAX ; Zauner Helmut,CAX ; Zhao Tian X.,CAX ; Arafat Tarek A. F.,CAX, Automatic transport ventilator with monitoring alarms.
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Andrieux, Claude; Jourdain, Cedric, Breathing assistance system with multiple pressure sensors.
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Winter, David Phillip, Condensate vial of an exhalation module.
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Voege, James A; Thie, Matthew G; Ferrer, David A, Conserver.
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Matthew F. Schmidt ; John S. Buan ; Catherine A. Nordman, Control device for supplying supplemental respiratory oxygen.
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Schmidt, Matthew F.; Buan, John S.; Nordman, Catherine A., Control of supplemental respiratory oxygen.
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Schmidt,Matthew F.; Buan,John S.; Nordman,Catherine A., Control of supplemental respiratory oxygen.
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Tatarek, Andrew, Disc component for gas control valves.
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Winter, David Phillip, EVQ diaphragm of an exhalation module.
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Winter, David Phillip, EVQ housing of an exhalation module.
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Winter, David Phillip, EVQ pressure sensor filter of an exhalation module.
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Winter, David Phillip, Exhalation module EVQ housing.
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Winter, David Phillip, Exhalation module EVQ internal flow sensor.
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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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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 integrated filter.
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Winter, David Phillip; Sanborn, Warren G., Exhalation valve assembly with integrated filter and flow sensor.
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Winter, David Phillip; Sanborn, Warren G., Exhalation valve assembly with selectable contagious/non-contagious latch.
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Winter, David Phillip, Expiratory filter body of an exhalation module.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; McCoy, Edward R.; Aviano, Jeffrey K., Flow rate compensation for transient thermal response of hot-wire anemometers.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; McCoy, Edward R.; Aviano, Jeffrey K., Flow rate compensation for transient thermal response of hot-wire anemometers.
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Voege,James A.; Ferrer,David A., Fluid regulator.
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Winter, David Phillip, Maintaining an exhalation valve sensor assembly.
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Bales Thomas O. (Miami FL) Solar Matthew S. (Cooper City FL) Sixto ; Jr. Robert (Miami FL) Smith Kevin W. (Coral Gables FL), Medical fluid pump powered by a constant source of vacuum.
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Voege, James A.; Thie, Matthew G.; Ferrer, David A., Method and apparatus for regulating fluid.
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Voege, James A.; Ferrer, David A.; Thie, Matthew G., Method and apparatus for regulating fluid flow or conserving fluid flow.
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Masic, Milenko; Doyle, Peter; Kimm, Gardner, Methods and systems for exhalation control and trajectory optimization.
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Tero, Robert, Nasal interface device.
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Winter, David Phillip, Neonate expiratory filter assembly of an exhalation module.
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Byrd, Douglas S., Oxygen conserver.
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David A. Pryor, Oxygen conserver.
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Austin, Gary, Oxygen conserving regulator.
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Tatarek, Andrew Richard Thomas; Harris, Jonathan Mark St. John, Oxygen therapy apparatus.
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Frye Mark R. ; Grenaway John R. ; Davis Richard A. ; Leithauser Douglas R., Oxygen-conserving regulator assembly.
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Mark R. Frye ; J. Fred Brown ; Douglas R. Leithauser, Oxygen-delivery system with portable oxygen meter.
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Hoffman Richard E. ; Nelson Thomas W. ; Miller Richard W. ; Ostrom Michael V., Pneumatic oxygen conserver.
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Gale, Peter P.; Hollshwandner, Blair J.; Krentler, Stephen B.; Shuman, Clyde W., Pneumatic oxygen conserving device.
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Gale,Peter P.; Krentler,Stephen B.; Shuman,Clyde W., Pneumatic oxygen conserving device.
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Peter L. Bliss, Pneumatic oxygen conserving device.
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Davenport James M., Pneumatically-operated gas demand apparatus.
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Davenport James M. (Fallbrook CA), Pneumatically-operated gas demand apparatus.
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Hamilton, Robert M.; Gambone, Anthony J., Portable gas powered positive pressure breathing apparatus and method.
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Hamilton, Robert M.; Gambone, Anthony J., Portable gas powered positive pressure breathing apparatus and method.
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Hamilton,Robert M.; Gambone,Anthony J., Portable gas powered positive pressure breathing apparatus and method.
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Kyle L. Adriance ; James M. Davenport, Sensing valve motion limiting mechanism for respiratory equipment.
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Davenport James M., Supply valve and diaphragm for a pneumatically-operated gas demand apparatus.
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Whitcher, Douglas; Blair, Jeremy; Griffin, Don, System and method for oxygen therapy.
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Andreiux, Claude, System and process for supplying respiratory gas under pressure or volumetrically.
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Torgerud, Michael A.; Fugar, Gregory L., Systems and devices for separating water and contaminants from fuel.
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Fjeld,Anders; Ottestad,Nils Terje, Valve device for controlled supply of a pressure fluid.
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Aguirre, Jose J.; Glenn, Gregory J.; Grant, Matthew Tyson; Duong, Billy, Ventilator console.
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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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연합인증

Pneumatic demand oxygen valve 원문보기

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이 특허를 인용한 특허 (53)

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Pneumatic demand oxygen valve 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (53)

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