Fluid Flow Diversion Valve and Blood Collection System Employing Same
First Claim
1. A flow diversion valve comprising:
- a valve body having an inlet port, a first outlet port, and a second outlet port;
a valve element at least partially received within the valve body, defining an internal bore and a single side port communicating with the internal bore, and rotatable relative to the valve body between a first position in which the inlet port communicates through the internal bore and the side port with the first outlet port and not with the second outlet port and a second position in which the inlet port communicates through the internal bore and the side port with the second outlet port and not with the first inlet port, the valve element being pre-positioned in the first position;
first interfering surfaces on said valve element and said valve body allowing rotation of the valve element from the first position to the second position and preventing reverse rotation of the valve element from the second position to the first position; and
second interfering surfaces on said valve element and said valve body preventing rotation of the valve element beyond the second position.
6 Assignments
0 Petitions
Accused Products
Abstract
Valves are provided for interconnecting a fluid source to two separate collection zones. The valves include a valve body having an inlet port communicating with the source and two outlet ports, each communicating with one of the collection zones. A valve element received within the valve body selectively establishes fluid communication between the inlet port and an outlet port. In a first position, the inlet port is in fluid communication with one of the outlet ports and the associated collection zone. The valve element is rotated to a second position within the valve body to establish fluid communication between the inlet port and the other outlet port, thereby halting flow through the first outlet port and allowing fluid communication with the other collection zone. A safety feature prevents rotation of the valve element beyond the second position or reverse rotation from the second position to the first position.
156 Citations
20 Claims
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1. A flow diversion valve comprising:
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a valve body having an inlet port, a first outlet port, and a second outlet port;
a valve element at least partially received within the valve body, defining an internal bore and a single side port communicating with the internal bore, and rotatable relative to the valve body between a first position in which the inlet port communicates through the internal bore and the side port with the first outlet port and not with the second outlet port and a second position in which the inlet port communicates through the internal bore and the side port with the second outlet port and not with the first inlet port, the valve element being pre-positioned in the first position;
first interfering surfaces on said valve element and said valve body allowing rotation of the valve element from the first position to the second position and preventing reverse rotation of the valve element from the second position to the first position; and
second interfering surfaces on said valve element and said valve body preventing rotation of the valve element beyond the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A valve for use in a medical fluid processing system comprising:
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a valve body including an inlet port, a first outlet port and a second outlet port;
a valve element at least partially received within the valve body to control flow therethrough and rotatable relative to the valve body between a first position in which the inlet port communicates with the first outlet port and not with the second outlet port and a second position in which the inlet port communicates with the second outlet port and not with the first outlet port; and
a tamper evident member cooperative with the valve element and the valve body to indicate movement of the valve element from a selected pre-position. - View Dependent Claims (11, 12, 13, 14)
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15. A fluid processing set comprising:
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a first collection container;
a second collection container; and
a valve comprising a valve body having an inlet port, a first outlet port communicating with the first collection container, and a second outlet port communicating with the second collection container, a valve element at least partially received within the valve body, defining an internal bore and a single side port communicating with the internal bore, and rotatable relative to the valve body between a first position in which the inlet port communicates through the internal bore and the side port with the first outlet port and not with the second outlet port and a second position in which the inlet port communicates through the internal bore and the side port with the second outlet port and not with the first inlet port, the valve element being pre-positioned in the first position, first interfering surfaces on said valve element and said valve body allowing rotation of the valve element from the first position to the second position and preventing reverse rotation of the valve element from the second position to the first position, and second interfering surfaces on said valve element and said valve body preventing rotation of the valve element beyond the second position. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification