Combination quick disconnect coupling and fluid cutoff valve
First Claim
1. A combination quick disconnect coupling and liquid cutoff valve for continuous ambulatory peritoneal dialysis comprising:
- a first tubular member connected to a length of flexible tubing and having a fluid passageway therethrough;
a second tubular member connected to a length of flexible tubing and constructed and arranged for telescopic reception of said first tubular member;
movable sleeve means disposed within said first tubular member, partially closed at a first end portion, for the selective opening or closing of said fluid passageway; and
means for selective movement of said movable sleeve;
a first resilient sealing member disposed between the first end of said movable sleeve means and the first end of said first tubular member, said resilient sealing member having an aperture adapted for the selective passage of liquid therethrough when in alignment with said fluid passageways of said movable sleeve and said first tubular member.
1 Assignment
0 Petitions
Accused Products
Abstract
A combination quick disconnect coupling and fluid cutoff valve particularly adapted for use in continuous ambulatory peritoneal dialysis comprises a first tubular member connected to a length of flexible tubing and having a fluid passageway therethrough, and a second tubular member connected to a second length of flexible tubing and constructed for telescopic reception of the first tubular member. A rotatable sleeve is disposed within the first tubular member (partially closed at a first end). By rotating the sleeve the fluid passageway may be selectively opened or closed. A coupling mechanism, such as a bayonet lock is used for retaining the first and second tubular members together. A series of lugs extend inwardly from the second tubular member and are arranged to engage the rotatable sleeve as the first tubular member is inserted into the second tubular member, so as to advance the movable sleeve to an open position during coupling thereby opening the fluid passageway. Finally, a resilient sealing mechanism is used for hermetically sealing the connection between the first and second members.
112 Citations
15 Claims
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1. A combination quick disconnect coupling and liquid cutoff valve for continuous ambulatory peritoneal dialysis comprising:
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a first tubular member connected to a length of flexible tubing and having a fluid passageway therethrough; a second tubular member connected to a length of flexible tubing and constructed and arranged for telescopic reception of said first tubular member; movable sleeve means disposed within said first tubular member, partially closed at a first end portion, for the selective opening or closing of said fluid passageway; and means for selective movement of said movable sleeve; a first resilient sealing member disposed between the first end of said movable sleeve means and the first end of said first tubular member, said resilient sealing member having an aperture adapted for the selective passage of liquid therethrough when in alignment with said fluid passageways of said movable sleeve and said first tubular member. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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2. A combination quick disconnect coupling and liquid cutoff valve for continuous ambulatory peritoneal dialysis comprising:
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a first tubular member connected to a length of flexible tubing and having a fluid passageway therethrough; a second tubular member connected to a length of flexible tubing and constructed and arranged for telescopic reception of said first tubular member; movable sleeve means disposed within said first tubular member, partially closed at a first end portion, for the selective opening or closing of said fluid passageway; means for selective movement of said movable sleeve means; coupling means for the selective engagement and retention of said first tubular member to said second tubular member; said coupling means comprising a bayonet locking mechanism having a plurality of lug members extending inwardly from said second tubular member, constructed and arranged for locking engagement with a plurality of shoulder members disposed about said first tubular member, thereby fixedly positioning said first and second tubular members together in compressive engagement; a first resilient sealing member disposed between said first end of said movable sleeve means and the first end of said first tubular member, said resilient sealing member having an aperture adapted for the selective passage of liquid therethrough when in alignment with said fluid passageways of said movable sleeve means, and said first tubular member. - View Dependent Claims (13, 14, 15)
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Specification