Systems and methods for delivering a fluid to a patient with reduced contamination
DCFirst Claim
1. A bodily fluid sequestration device, comprising:
- a housing having a first port configured to be fluidically coupled to a patient and a second port configured to be fluidically coupled to an external fluid reservoir;
an internal fluid reservoir disposed in the housing and configured to receive and sequester an initial volume of bodily fluid withdrawn from the patient;
a flow control mechanism disposed in the housing and defining a first lumen and a second lumen, the first lumen at least partially defining the internal fluid reservoir and configured to fluidically couple the first port to the internal fluid reservoir, and the second lumen configured to fluidically couple the first port to the second port; and
a valve disposed in the first lumen and configured to form a substantially fluid tight seal with the walls defining the first lumen in a closed configuration, and configured to allow the flow of bodily fluid in a single direction in an open configuration,the bodily fluid sequestration device configured to allow the initial volume of bodily fluid to flow from the first port to the internal fluid reservoir, and to establish a fluid flow path between the first port and the second port once the initial volume of bodily fluid is sequestered in the internal fluid reservoir and the valve is in the closed configuration.
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Accused Products
Abstract
An apparatus includes a cannula assembly, a housing, a fluid reservoir, a flow control mechanism, and an actuator. The housing includes an inlet port removably coupled to the cannula assembly and defines an inner volume. The fluid reservoir is fluidically coupled to the housing and configured to receive and isolate a volume of bodily fluid from a patient. The flow control mechanism is at least partially disposed in the inner volume. The actuator is operably coupled to the flow control mechanism and is configured to move the flow control mechanism between a first configuration, in which bodily fluid can flow, via a fluid flow path defined by the flow control mechanism, from the cannula assembly, through the inlet port and into the fluid reservoir, to a second configuration, in which the fluid reservoir is fluidically isolated from the cannula assembly.
166 Citations
30 Claims
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1. A bodily fluid sequestration device, comprising:
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a housing having a first port configured to be fluidically coupled to a patient and a second port configured to be fluidically coupled to an external fluid reservoir; an internal fluid reservoir disposed in the housing and configured to receive and sequester an initial volume of bodily fluid withdrawn from the patient; a flow control mechanism disposed in the housing and defining a first lumen and a second lumen, the first lumen at least partially defining the internal fluid reservoir and configured to fluidically couple the first port to the internal fluid reservoir, and the second lumen configured to fluidically couple the first port to the second port; and a valve disposed in the first lumen and configured to form a substantially fluid tight seal with the walls defining the first lumen in a closed configuration, and configured to allow the flow of bodily fluid in a single direction in an open configuration, the bodily fluid sequestration device configured to allow the initial volume of bodily fluid to flow from the first port to the internal fluid reservoir, and to establish a fluid flow path between the first port and the second port once the initial volume of bodily fluid is sequestered in the internal fluid reservoir and the valve is in the closed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A bodily fluid sequestration device, comprising:
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a housing having a first port configured to be fluidically coupled to a patient and a second port configured to be fluidically coupled to an external fluid reservoir; an internal fluid reservoir disposed in the housing and configured to receive and sequester an initial volume of bodily fluid withdrawn from the patient; a flow control mechanism disposed in the housing and defining a first lumen and a second lumen, the first lumen at least partially defining the internal fluid reservoir and configured to fluidically couple the first port to the internal fluid reservoir, and the second lumen configured to fluidically couple the first port to the second port; and a valve disposed in the first lumen and configured to form a substantially fluid tight seal with the walls defining the first lumen in a closed configuration, and configured to allow the flow of bodily fluid in a single direction in an open configuration, the valve being operative to move from the closed configuration to the open configuration in response to a difference in pressure between a valve inlet and a valve outlet, the bodily fluid sequestration device configured to allow the initial volume of bodily fluid to flow from the first port to the internal fluid reservoir, and to establish a fluid flow path between the first port and the second port once the initial volume of bodily fluid is sequestered in the internal fluid reservoir and the valve is in the closed configuration. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A bodily fluid sequestration device, comprising:
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a housing having a first port configured to be fluidically coupled to a patient and a second port configured to be fluidically coupled to an external fluid reservoir; an internal fluid reservoir disposed in the housing and configured to receive and sequester an initial volume of bodily fluid withdrawn from the patient; a flow control mechanism disposed in the housing and defining a first lumen and a second lumen, the first lumen at least partially defining the internal fluid reservoir and configured to fluidically couple the first port to the internal fluid reservoir, and the second lumen configured to fluidically couple the first port to the second port; and a valve disposed in the first lumen and configured to form a substantially fluid tight seal with the walls defining the first lumen in a closed configuration, the valve being operative to move from the closed configuration to an open configuration in response to a difference in pressure between a valve inlet and a valve outlet, the valve being further operative to return to the closed configuration in response to equalization of pressure between the valve inlet and the valve outlet, the valve being further configured to sequester the bodily fluid in the internal fluid reservoir from bodily fluid in the second port when the valve is in the closed configuration; the bodily fluid sequestration device configured to allow the initial volume of bodily fluid to flow from the first port to the internal fluid reservoir, and to establish a fluid flow path between the first port and the second port once the initial volume of bodily fluid is sequestered in the internal fluid reservoir and the valve is in the closed configuration. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification