IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0409756
(1995-03-24)
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발명자
/ 주소 |
- Meloul Raphael F.
- Rosen Jonathan J.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
69 인용 특허 :
0 |
초록
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An automatic fluid control having a first and second tube members and a slidable valve element capable of moving from a sealed closed position to an open position permitting fluid passage therethrough. In a preferred first embodiment, the elastomeric valve element is slidingly received with a passag
An automatic fluid control having a first and second tube members and a slidable valve element capable of moving from a sealed closed position to an open position permitting fluid passage therethrough. In a preferred first embodiment, the elastomeric valve element is slidingly received with a passageway in the first tube. The valve element has a flange portion containing a plurality of slits that, when inverted and stretched, permit fluid to pass therethrough, but when closed, are in contact with the inner wall of the first tube and prevents fluid from passing therethrough. The valve element also can have a rigid plug attached within an opening in the top surface to present a preferably non-deformable contact point for a male luer tip, which, when pressed downward on the valve element, breaks a seal between the valve element and the first tube inner wall. In a second embodiment a toroidal shaped valve portion selectively forms a seal over a pin extending axially from the second tube member, the pin having a plurality of grooves in its surface to permit passage of fluid when the seal created by the valve element is broken. In a third embodiment, a valve element maintains a seal against a pin extending from the base of the second tube member and having a plurality of grooves. When the valve element is urged downward against the upward force of a spring, the pin grooves permit fluid flow through the second tube member.
대표청구항
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[ Claimed is:] [1.] A method of selectively controlling fluid flow through a fluid access system, comprising:providing an aliquot of fluid in a fluid transmitting device;providing a valve assembly for selectively controlling fluid flow, said valve assembly comprisinga first rigid tube member having
[ Claimed is:] [1.] A method of selectively controlling fluid flow through a fluid access system, comprising:providing an aliquot of fluid in a fluid transmitting device;providing a valve assembly for selectively controlling fluid flow, said valve assembly comprisinga first rigid tube member having a top, a bottom, a first portion containing a first inner wall defining a first passageway having a first diameter, said first tube member also having a second portion extending axially from said first portion and containing a second inner wall defining a second passageway having a diameter greater than said first passageway,a second rigid tube member havinga base portion,at least one fluid passageway defined in said base portion,at least two ribs extending upward from said base portion, the volume between said at least two ribs defining a fluid passageway in communication with said at least one fluid passageway defined in said base portion, anda pin extending upward from said at least two ribs and having a proximal and a distal end, said pin having at least one longitudinal groove defined therein, said groove being in fluid communication with said fluid passageway defined in said base portion, said distal end of pin terminating in a protuberance having an outer wall defining a primary valve sealing surface,said first and second tube members capable of mating engagement with axial alignment; anda resilient valve element comprising a generally cylindrical elastic body having a top and a bottom and having an upper portion having an outer wall and an inner wall, a middle portion having an inner wall and a generally flared outer wall terminating in a toroidal shaped lower portion, said valve element having a fluid passageway defined axially therein sized to be able to slidingly receive said pin, and,inserting said fluid transmitting device into said first passageway such that said valve element moves from a closed position to an open position permitting fluid flow through said valve assembly; and,transmitting fluid through said valve assembly. [8.] An automatic fluid control valve, comprising:a first rigid tube member having a top, a bottom, a first portion containing a first inner wall defining a first passageway having a first diameter and defining a secondary valve sealing surface, said first tube member also having a second portion extending axially from said first portion and containing a second inner wall defining a second passageway having a diameter greater than said first passageway;a second rigid tube member havinga base portion,at least one fluid passageway defined in said base portion,at least two ribs tapering upward from said base portion, the volume between said at least two ribs defining a fluid passageway in communication with said at least one fluid passageway defined in said base portion, anda pin extending upward from said at least two ribs and having a proximal and a distal end, said distal end of pin terminating in a protuberance having a beveled outer wall defining a primary valve sealing surface, andsaid first and second tube members capable of mating engagement with axial alignment; anda resilient valve element comprising a generally cylindrical elastic body having a top wipable by cleaning means, a bottom, an upper portion having an inner wall with a top beveled surface, and having an outer wall that creates a seal with said first tube member inner wall when said valve is assembled, and a middle portion having an inner wall and a generally flared outer wall terminating in a toroidal shaped lower portion, said valve element having a fluid passageway defined axially therein sized to be able to slidingly receive said pin wherein said protuberance of said pin extends above said top of said valve element when said valve is assembled,whereby said valve element is slidingly disposed within said tube members and can move from a closed position to a partially open position permitting partial fluid flow and to a fully open position permitting full fluid flow.
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