Power injection valve
AssigneeNavilyst Medical, Inc.
InventorStephen C Miller
Life of this patent
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Abstract
A device for transferring fluids between an internal structure in a living body and an exterior thereof comprises a housing including a pressure activated lumen extending to a distal end opening to a power injection lumen that extends to a distal port configured for connection to a fluid conduit extending to a target structure within the body and a pressure activated valve extending across the pressure activated lumen and controlling fluid flow therethrough, in combination with a proximal port coupled to the housing for movement between a first position in which a proximal end of the power injection lumen opens to the proximal port and a second position in which a proximal end of the pressure activated lumen opens to the proximal port.
Claims21
A valve assembly for a catheter, comprising:
- a housing defining first and second lumens therethrough;
- a pressure activated valve disposed between the first and second lumens, the valve adapted to permit fluid to flow from the first lumen to the second lumen when acted upon by a fluid pressure in excess of a predetermined threshold;
- an outlet fluidly coupled to the second lumen;
- and
- an inlet moveable between a first position and a second position, wherein the inlet engages the first lumen when it is in the first position, and the inlet engages the second lumen when it is in the second position.
A system for power injection of fluids into a patient, comprising:
- a catheter having a distal end insertable into a patient, a proximal hub opposite the distal end, and defining a first lumen therethrough;
- and
- a valve assembly, comprising:
- a housing defining second and third lumens therethrough;
- a pressure activated valve disposed between the second and third lumens, the valve adapted to permit fluid to flow from the second lumen to the third lumen when acted upon by a fluid pressure in excess of a predetermined threshold;
- an outlet fluidly coupling the second lumen to the third lumen;
- and
- an inlet moveable between a first position and a second position, wherein the inlet engages the second lumen when it is in the first position, and the inlet engages the third lumen when it is in the second position.
A system for power injection of fluids into a patient, comprising:
- a catheter having a distal end insertable into a patient, a proximal hub opposite the distal end, and defining a first lumen therethrough;
- and
- a valve assembly, comprising:
- a housing defining second and third lumens therethrough, the housing including, at one end, a wall having a circular aperture therethrough and, at an opposite end, an outlet fluidly connected to said catheter and said third lumen;
- a pressure activated valve disposed between the second and third lumens, the valve adapted to permit fluid to flow from the second lumen to the third lumen when acted upon by a fluid pressure in excess of a predetermined threshold;
- and
- a rotating luer assembly moveable between first and second positions, the luer assembly comprising a rotating luer tip moveable between first and second positions, wherein the luer, when in the first position, is fluidly connected to the second lumen and, when in the second position, is fluidly connected to the third lumen,
- wherein the rotating luer is disposed within the circular aperture of the housing.
Dependencies are inferred from the claim text.