Anti-drawback medical valve
First Claim
1. A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
- a housing forming an interior;
a valve mechanism within the interior, the valve mechanism having a substantially rigid translating member with a bore, the interior of the housing having a flow path that includes at least a portion of the bore of the translating member, the flow path having an open mode volume when the valve is in the open mode, the fluid path also having a closed mode volume when the valve is in the closed mode, the open mode volume being substantially equal to the closed mode volume.
2 Assignments
0 Petitions
Accused Products
Abstract
A medical valve has an interior flow path having a volume that is substantially the same when in either the closed mode (when the valve is closed) or the open mode (when the valve is open). To those ends, the medical valve has a housing forming an interior, and a valve mechanism (within the interior) having a substantially rigid translating member with a bore. The interior of the housing has a flow path that includes at least a portion of the bore of the translating member. As noted above, the open mode volume is substantially equal to the closed mode volume.
58 Citations
51 Claims
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1. A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
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a housing forming an interior;
a valve mechanism within the interior, the valve mechanism having a substantially rigid translating member with a bore, the interior of the housing having a flow path that includes at least a portion of the bore of the translating member, the flow path having an open mode volume when the valve is in the open mode, the fluid path also having a closed mode volume when the valve is in the closed mode, the open mode volume being substantially equal to the closed mode volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
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a housing forming an interior having a proximal port and a distal port, the interior forming a flow path between the proximal port in the distal port, a translating member having a bore, the translating member being longitudinally movable within the interior, the flow path comprising the bore and a second portion, the translating member bounding the second portion of the flow path, the flow path maintaining a substantially constant volume when the valve transitions between the open mode and the closed mode. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of controlling fluid flow through a valve having an interior, the valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the method comprising:
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forming a flow path within the interior, the flow path comprising a first portion and a second portion; and
longitudinally moving the first portion relative to the second portion to change the mode of the valve, each of the first portion and the second portion having a substantially static shape when the valve transitions between the open mode and the closed mode. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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34. A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
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a housing having a distal port and an interior, a valve mechanism within the interior, the valve mechanism having a sealing member, the interior having components forming a flow path extending from the sealing member and terminating at the distal port, the sealing member cooperating with at least one of the components to selectively open and close the valve, and the components each maintaining substantially constant shapes as the valve transitions between the open mode and the closed mode, the distal port substantially having neither a positive push nor a drawback when the valve transitions from the open mode to the closed mode. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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42. A medical valve having an open mode that permits fluid flow, and a closed mode that prevents fluid flow, the medical valve comprising:
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a housing forming an interior;
means for controlling fluid flow within the interior, the controlling means having a translating means with a bore, the interior of the housing having a flow path that includes at least a portion of the bore of the translating means, the flow path having an open mode volume when the valve is in the open mode, the fluid path also having a closed mode volume when the valve is in the closed mode, the open mode volume being substantially equal to the closed mode volume. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification