Automatic valve
First Claim
1. A valve adapted for use with a nasogastric tube having a fluid lumen and a vent lumen, said valve comprising:
- a housing including therein a first passageway and a second passageway that includes a relief port, said first passageway being adapted for communication with the fluid lumen of said nasogastric tube and the relief port being adapted for communication with the vent lumen of the nasogastric tube, the housing further including a fluid introduction port and a fluid suction port;
a valve member disposed within the housing and movable relative thereto, the valve member defining a portion of the first passageway that includes a first opening configured for alignment and sealed fluid communication with the fluid introduction port and the fluid suction port, the portion of the first passageway further including a second opening having a greater relative dimension than the first opening, wherein the valve member is manipulable to establish sealed fluid communication between the first opening and either the fluid introduction port or the fluid suction port while maintaining continuous sealed fluid communication between the second opening and the first passageway adjacent to the second end of the housing;
an anti-reflux valve in the housing in fluid communication with the relief port, said anti-reflux valve being adapted to open to permit air to flow through the relief port when the first passageway and relief port are in communication with respective lumens of said nasogastric tube and suction is applied to the suction port; and
wherein said second passageway is separate from the first passageway such that said valve member is not movable to any position establishing fluid communication between said first and second passageways.
3 Assignments
0 Petitions
Accused Products
Abstract
A valve system is provided having a housing including a first end, a second end and a first passageway. The housing has a first port and a second port. A valve member is disposed within the housing and movable relative thereto. The valve member defines a portion of the first passageway that includes a first opening configured for alignment and sealed fluid communication with the first port and the second port. The portion of the first passageway further includes a second opening having a greater relative dimension than the first opening. The valve member is manipulable to establish sealed fluid communication between the first opening and the first port or the second port while maintaining continuous sealed fluid communication between the second opening and the first passageway adjacent to the second end of the housing. The valve member can be disposed within the housing for rotation relative thereto.
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Citations
26 Claims
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1. A valve adapted for use with a nasogastric tube having a fluid lumen and a vent lumen, said valve comprising:
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a housing including therein a first passageway and a second passageway that includes a relief port, said first passageway being adapted for communication with the fluid lumen of said nasogastric tube and the relief port being adapted for communication with the vent lumen of the nasogastric tube, the housing further including a fluid introduction port and a fluid suction port; a valve member disposed within the housing and movable relative thereto, the valve member defining a portion of the first passageway that includes a first opening configured for alignment and sealed fluid communication with the fluid introduction port and the fluid suction port, the portion of the first passageway further including a second opening having a greater relative dimension than the first opening, wherein the valve member is manipulable to establish sealed fluid communication between the first opening and either the fluid introduction port or the fluid suction port while maintaining continuous sealed fluid communication between the second opening and the first passageway adjacent to the second end of the housing; an anti-reflux valve in the housing in fluid communication with the relief port, said anti-reflux valve being adapted to open to permit air to flow through the relief port when the first passageway and relief port are in communication with respective lumens of said nasogastric tube and suction is applied to the suction port; and wherein said second passageway is separate from the first passageway such that said valve member is not movable to any position establishing fluid communication between said first and second passageways. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A nasogastric valve system comprising:
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a nasogastric tube including a fluid lumen and a vent lumen, the fluid lumen defining a first portion of a first passageway, the vent lumen defining a first portion of a second passageway, wherein the first passageway and the second passageway fluidly communicate adjacent a distal end of the nasogastric tube; a housing defining a first end, a second end and a longitudinal axis, the housing including a second portion of the first passageway that extends therewithin and a second portion of the second passageway that extends therewithin and includes a relief port, the housing including an introduction port and a suction port, said introduction and suction ports being disposed adjacent the first end of the housing, the housing further including an attachment port disposed adjacent the second end of the housing for attachment of the nasogastric tube to the housing; a valve member mounted for rotation within a cavity of the housing relative to the longitudinal axis, the valve member defining a portion of the first passageway that includes a first opening configured for alignment and sealed fluid communication with the introduction port, in a first position, and the suction port, in a second position, the portion of the first passageway further including a second opening having a greater relative dimension than the first opening and being configured to establish continuous fluid communication with the first passageway, wherein the valve member is rotatable to establish sealed fluid communication between the first opening and the introduction port or the suction port while maintaining continuous sealed fluid communication between the second opening and the attachment port; and an anti-reflux valve in the housing in fluid communication with the relief port, said anti-reflux valve being adapted to open to permit air to flow through the relief port when the first passageway and relief port are in communication with respective lumens of said nasogastric tube and suction is applied to the suction port; and wherein said second portion of the second passageway is separate from the second portion of the first passageway such that said valve member is not movable to any position establishing fluid communication between said second portions of the first and second passageways. - View Dependent Claims (25)
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26. A valve system as set forth in clam 24 wherein the anti-reflux valve comprises an umbrella valve configured to open in response to suction applied to the suction port.
Specification