Anti-clotting apparatus and methods for fluid handling system
First Claim
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1. A system for analysis of bodily fluids, the system comprising:
- a first fluid passageway in fluid communication with a fluid source;
a second fluid passageway in fluid communication with the first passageway;
a pump configured to draw a fluid sample into the first fluid passageway from the fluid source;
a valve operatively connected to at least one of the first or second fluid passageways, the valve being configured to separate an analysis portion from the fluid sample;
an analyzer operatively connected to the second passageway, the analyzer being configured to determine the concentration of at least one analyte in the analysis portion of the fluid sample;
an anti-clotting device operatively connected to provide one or more anti-clotting agents to only the analysis portion; and
a waste reservoir in fluid communication with the second passageway, the waste reservoir configured to collect the analysis portion of the fluid sample so that it is not returned to the fluid source.
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Abstract
A method for maintaining clear passageways in an extracorporeal blood flow system. The method comprises intermittently providing one or more anti-clotting agents to a passageway of the extracorporeal blood flow system. Also disclosed is an extracorporeal blood flow system. The system comprises a passageway, and a device operatively connected to provide one or more anti-clotting agents to a least a portion of said passageway.
121 Citations
23 Claims
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1. A system for analysis of bodily fluids, the system comprising:
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a first fluid passageway in fluid communication with a fluid source; a second fluid passageway in fluid communication with the first passageway; a pump configured to draw a fluid sample into the first fluid passageway from the fluid source; a valve operatively connected to at least one of the first or second fluid passageways, the valve being configured to separate an analysis portion from the fluid sample; an analyzer operatively connected to the second passageway, the analyzer being configured to determine the concentration of at least one analyte in the analysis portion of the fluid sample; an anti-clotting device operatively connected to provide one or more anti-clotting agents to only the analysis portion; and a waste reservoir in fluid communication with the second passageway, the waste reservoir configured to collect the analysis portion of the fluid sample so that it is not returned to the fluid source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for analysis of bodily fluids, the system comprising:
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a first fluid passageway in fluid communication with a fluid source and configured to receive a fluid sample from the fluid source; a valve operatively connected to the first fluid passageway, the valve being configured to separate an analysis portion from the fluid sample; an analyzer configured to interact with the analysis portion to determine at least one analyte in the analysis portion of the fluid sample; an anti-clotting device configured to provide one or more anti-clotting agents to only the analysis portion; and a waste reservoir configured to collect the analysis portion of the fluid sample so that it is not returned to the fluid source. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification