[특허]Fluid recovery system

Fluid recovery system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-001/00
출원번호	US-0647583 (1991-01-28)
발명자 / 주소	Herweck Steve A. (Nashua NH) Karowski Theodore (Hollis NH)
출원인 / 주소	Atrium Medical Corporation (Hollis NH 02)
인용정보	피인용 횟수 : 37 인용 특허 : 0

초록 ▼

A thoracic cavity drainage device includes a first vessel having a plurality of chambers one of which is a regulated drainage chamber, and a separate transfer vessel which receives fluid collected in the drainage chamber of the first vessel. The chambers of both vessels are interconnected in a series by fluid passageways which cooperate to maintain a uniform range of suction in the drainage chamber while preventing passage of water into the drainage chamber and permitting a different level of suction in the transfer vessel. This operation is effective despite relatively large pressure and vacuum impulses caused by stripping of drainage lines, patient coughing, and the like, and despite discrete changes in the physical configuration of the system caused by disconnection of the transfer vessel, connection of the transfer vessel to an infusion line or the opening or closing of fluid lines and ports. A novel transfer vessel empties the drainage device and provides gravity reinfusion of the collected fluids. A mechanism within the transfer vessel provides an effective suction without vacuum connections or pressure regulating adjustments.

대표청구항 ▼

A vessel for aspirating and collecting vital fluid, such vessel comprising i) a plurality of walls formed of polymeric material and defining an interior chamber having at least first, second third openings therein adapted for communication with the atmosphere, with a suction source, and with a vital fluid collection tube, respectively, said interior chamber being subdivided to provide a buffered volume of at least first, second and third successive intercommunicating sub-chambers having said respective first, second and third openings herein, ii) first and second water columns included in said first and second sub-chambers for providing during normal operation first and second pressure differentials in said interior chamber effective to establish a unidirectional draw at each said first and third opening toward said second opening while correcting changes in pressure to maintain a desired subatmospheric pressure range in said third sub-chamber, iii) said vessel having a volume and interior shape of intercommunicating passages between sub-chambers including a self-bailing structure above said second water column comprising means for intercepting and returning to said second water column water rising and water entrained in air bubbles, while bidirectionally allowing free passage of air past said self bailing structure, and a port above said self-bailing structure between said second and third sub-chambers, for absorbing energy of abrupt pressure variations of said third sub-chamber, and being operative with said water columns to effectively maintain uniform said desired subatmospheric pressure range, said third sub-chamber also having a fourth opening at a lower portion thereof and a filter disposed in a flow path between said third and fourth openings, wherein said fourth opening is a closable outlfow opening having a sterile connection for coupling to flow means, and flow means for fluid interconnection with said fourth opening to deliver collected vital fluid therefrom, whereby fluids collected in said third sub-chamber effectively define a further fluid seal and vital fluid collected in said third sub-chamber may be continuously drawn from below the surface at said fourth opening for reinfusion without introducing pressure irregularity in said third sub-chamber or interruption of said aspirating and collecting.

이 특허를 인용한 특허 (37)

Valentin Lorenzo Crosa Dorado UY, Disposable pleural aspiration device.
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Geyer,Marco, Drainage chamber for collecting body fluids, in particular liquor.
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Valerio Michael A. ; Phung Trinh ; Carlone Anthony R. ; Santos Victor E., Drainage unit for draining bodily fluids from a patient.
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DiPerna, Paul M, Flow regulating stopcocks and related methods.
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Want Nicholas ; Karwoski Theodore ; Herweck Steve A. ; Gillis Ralph L. ; Weimer Craig J., Fluid recovery system.
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Nicholas Want ; Theodore Karwoski ; Steve A. Herweck ; Thomas S. Cochran ; Scott E. Corbeil ; David R. Autote ; Ralph L. Gillis, Fluid-recovery system with integrally molded components.
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Chevallet, Jacques; Semenzato, Nicolas; Frugier, Alain; Ribolzi, Francesco, Gas separation devices.
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Want Nicholas ; Cochran Thomas S. ; Harris Jeff, Holder for a fluid recovery system.
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DiPerna, Paul M.; Brown, David; Rosinko, Mike; Kincade, Dan; Michaud, Michael; Nadworny, John; Kruse, Geoffrey A.; Ulrich, Thomas R., Infusion pump system with disposable cartridge having pressure venting and pressure feedback.
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DiPerna, Paul M.; Brown, David; Rosinko, Mike; Kincade, Dan; Michaud, Michael; Nadworny, John; Kruse, Geoffrey A.; Ulrich, Thomas R., Infusion pump system with disposable cartridge having pressure venting and pressure feedback.
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Kruse, Geoffrey A., Infusion pump system with disposable cartridge having pressure venting and pressure feedback.
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Michaud, Michael; Kruse, Geoffrey A., Infusion pump system with disposable cartridge having pressure venting and pressure feedback.
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Michaud, Michael; Kruse, Geoffrey A., Infusion pump system with disposable cartridge having pressure venting and pressure feedback.
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Verhoef, Erik T.; DiPerna, Paul M.; Rosinko, Mike; Williamson, Mark; Kruse, Geoffrey A.; Ulrich, Thomas R.; Lamb, Phil; Saint, Sean; Michaud, Michael; Trevaskis, William, Infusion pump system with disposable cartridge having pressure venting and pressure feedback.
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Seifert Raymond C. ; Bradbury John R., Medical and biological fluid collection and disposal system.
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Seifert Raymond C. ; Bradbury John R., Medical and biological fluid collection and disposal system.
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Anderson, Barry G.; Hand, Joseph M., Medical suction apparatus and draining of same.
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Anderson, Barry G.; Hand, Joseph M., Medical suction apparatus and methods for draining same.
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Anderson, Barry G.; Hand, Joseph M., Medical suction apparatus and methods for draining same.
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Bemis Peter F. ; Newar Amelia H. ; Kolste Steven J. ; Genett William J., Medical suction system.
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Bemis, Peter F.; Newar, Amelia H.; Kolste, Steven J.; Genett, William J., Medical suction system.
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Bemis,Peter F.; Newar,Amelia H.; Kolste,Steven J.; Genett,William J., Medical suction system.
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Peter F. Bemis ; Amelia H. Newar ; Steven J. Kolste ; William J. Genett, Medical suction system.
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Miller, Mark; Hollen, Michael C.; Hand, Joseph M.; Anderson, Barry G., Method and apparatus for disposing of bodily fluids from a container.
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Hand Joseph M. ; Anderson Barry G. ; Hollen Michael C. ; Miller Mark A., Method and apparatus for removing and disposing of body fluids.
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Joseph M. Hand ; Barry G. Anderson ; Michael C. Hollen ; Mark A. Miller, Method and apparatus for removing and disposing of body fluids.
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Bradbury John R. ; Terry Richard L. ; Spangler Clayton W., Method for medical and biological fluid collection and disposal.
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Gardner, William P.; Patel, Nishank R.; Sommers, Eric T.; Mehnert, John C., Protective headwear with airflow.
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Locke, Christopher Brian; Robinson, Timothy Mark; Tout, Aidan Marcus; Long, Justin Alexander, Reduced-pressure systems and methods employing a leak-detection member.
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Swisher, David Rork; Yam, Jacky, Sampling port for a drainage device.
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DiPerna, Paul M., Slideable flow metering devices and related methods.
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Brown, David, Solute concentration measurement device and related methods.
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Rosinko, Michael J.; Kruse, Geoffrey A.; Harris, Paul, System and method for detecting occlusions in an infusion pump.
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DiPerna, Paul Mario, System of stepped flow rate regulation using compressible members.
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Metzmaker, Thomas; Saint, Sean; Michaud, Michael; Rosinko, Michael J.; Swanson, Vance, Systems including vial adapter for fluid transfer.
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Pollen, Ashia M.; Harter, Robert J., Tip-tolerant chest drainage container.
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DiPerna, Paul M., Two chamber pumps and related methods.
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