[특허]Blood circulating circuit for membrane-type artificial lung, and reservoir for use in blood circulating circuit

Blood circulating circuit for membrane-type artificial lung, and reservoir for use in blood circulating circuit 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-001/18
출원번호	US-0797776 (1985-11-12)
우선권정보	JP-0180983 (1981-11-13)
발명자 / 주소	Fukasawa Hiromichi (Funabashi JPX)
출원인 / 주소	Terumo Kabushiki Kaisha (Tokyo JPX 03)
인용정보	피인용 횟수 : 68 인용 특허 : 0

초록 ▼

A sealed-type flexible reservoir constituting part of the blood circulating circuit of a membrane-type artificial lung is regulated to a specified volume by a pair of opposing planar restricting members, thereby specifying the amount of blood circulating through the circuit. The reservoir comprises a vessel provided at its upper portion with deaeration ports, a blood inflow tube having two or more side apertures for communication with the interior of the vessel, and a blood outflow port for guiding blood exiting from the vessel. The side apertures are located at a position higher than the blood outflow port, with the blood inflow tube and blood outflow port being spaced away from each other by a predetermined distance, Accordingly, air bubbles carried into the reservoir by the flowing blood may be removed from the deaeration ports without being drawn out through the blood outflow port.

대표청구항 ▼

An extra-corporeal blood circulating circuit, comprising: a hollow-fiber membrane-type artificial lung in which volume fluctuation in the artificial lung due to a change in internal pressure in the artificial lung is substantially negligible; a sealed, flexible first reservoir communicating with at least a blood collecting circuit on a blood receiving side of the artificial lung and a blood discharge circuit on a blood delivery side of the artificial lung, said first reservoir being deformable; a capacity restricting enclosure for said first reservoir for adjustably restricting the capacity of said first reservoir, said capacity restricting enclosure having: at least two opposing spaced apart plate members between which said first reservoir is disposed; slideable engaging means coupled to said opposing plate members for permitting an opposing plate member to be selectively movable relative to another of said opposing plate members to selectively vary the spacing or clearance therebetween; and fixing means for fixing the position of said movable plate member relative to said another plate member as set by said slideable engaging means to fixedly set the spacing or clearance between said opposing plate members in order to cause said first reservoir always to contain the same limited and fixed predetermined selectable maximum volume of blood during circulation of blood through the blood circulating circuit; a second, non-deformable reservoir; communicating means for selectively communicating said second reservoir with said first reservoir; said second reservoir including a transparent vessel for measuring and adjusting the amount of extra-corporeal circulating blood and indicating means attached to the transparent vessel for indicating the level of blood contained therein; supporting means for adjustably supporting said second reservoir at a level higher than that of an uppermost edge of said first reservoir, and capable of adjusting said level of said second reservoir; and means for supplying blood under pressure from said artificial lung to said first reservoir to cause said first reservoir to expand to said limited and fixed predetermined selectable maximum volume as defined by said capacity restricting enclosure so that said first reservoir is filled with said supplied blood and maintained at said limited and fixed predetermined selectable maximum volume, and blood from said first reservoir, responsive to an increase in blood pressure in said first reservoir after said first reservoir is filled to said selectable maximum volume, being forced to flow through said communicating means up to said second reservoir, the quantity of blood forced up to said second reservoir corresponding to said increase in blood pressure in said first reservoir, so that the level of blood in said second reservoir as indicated by said indicating means indicates the amount of blood circulating in the extra-corporeal blood circulating circuit.

이 특허를 인용한 특허 (68)

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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

Blood circulating circuit for membrane-type artificial lung, and reservoir for use in blood circulating circuit 원문보기

초록 ▼

대표청구항 ▼

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연합인증

Blood circulating circuit for membrane-type artificial lung, and reservoir for use in blood circulating circuit 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (68)

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