Fluid handling cassette system for body fluid analyzer
First Claim
1. A fluid handling system for use in bodily fluid analysis, the system comprising:
- a first cassette module configured to interface with a main instrument, the first cassette module comprising;
a frame;
a fluid handling network supported by the frame, the fluid handling network including a patient connection passageway that is configured to draw a sample of bodily fluid from a patient;
a fluid pressure member configured to engage a pressure member actuator of the main instrument to produce pressure to move the sample of bodily fluid within the fluid handling network;
a second cassette module configured to interface with the main instrument, the second cassette module comprising;
a housing;
one or more fluid passageways supported by the housing; and
at least one sample cell that is accessible via the one or more fluid passageways, wherein the sample cell is configured to interface with a sampling unit of the main instrument for measuring an analyte in at least a portion of the sample of bodily fluid; and
a transfer coupling comprising one or more connectors for removably interconnecting the first cassette module and the second cassette module, wherein the one or more connectors have an engaged configuration in which the fluid handling network is in fluid communication with the at least one sample cell and a disengaged configuration in which the fluid handling network is not in fluid communication with the at least one sample cell.
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Accused Products
Abstract
A fluid handling system for use in bodily fluid analysis. The system comprises a first fluid handling module configured to interface with a main instrument. The first fluid handling module has a first fluid handling network and the first fluid handling network includes an infusate passage and an infusion fluid pressure member suitable for moving fluid within the infusate passage. The fluid handling system also has a second fluid handling module separate from the first module which is configured to interface with the main instrument. The second fluid handling module has a second fluid handling network and at least one sample analysis cell which is accessible via the second fluid handling network. The first and second modules are configured to interconnect and provide fluid communication between the first and second fluid handling network and the sample cells.
244 Citations
27 Claims
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1. A fluid handling system for use in bodily fluid analysis, the system comprising:
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a first cassette module configured to interface with a main instrument, the first cassette module comprising; a frame; a fluid handling network supported by the frame, the fluid handling network including a patient connection passageway that is configured to draw a sample of bodily fluid from a patient; a fluid pressure member configured to engage a pressure member actuator of the main instrument to produce pressure to move the sample of bodily fluid within the fluid handling network; a second cassette module configured to interface with the main instrument, the second cassette module comprising; a housing; one or more fluid passageways supported by the housing; and at least one sample cell that is accessible via the one or more fluid passageways, wherein the sample cell is configured to interface with a sampling unit of the main instrument for measuring an analyte in at least a portion of the sample of bodily fluid; and a transfer coupling comprising one or more connectors for removably interconnecting the first cassette module and the second cassette module, wherein the one or more connectors have an engaged configuration in which the fluid handling network is in fluid communication with the at least one sample cell and a disengaged configuration in which the fluid handling network is not in fluid communication with the at least one sample cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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coupling a disposable fluid handling system to a main instrument, wherein the disposable fluid handling system comprises; a first cassette module configured to interface with the main instrument, the first cassette module comprising; a frame; a fluid handling network supported by the frame; and a fluid pressure member engaged with a pressure member actuator of the main instrument; a second cassette module configured to interface with the main instrument, the second cassette module comprising; a housing; one or more fluid passageways supported by the housing; and a sample cell that is accessible via the one or more fluid passageways; and a transfer coupling comprising one or more connectors for removably interconnecting the first cassette module and the second cassette module; actuating the fluid pressure member to draw a sample of bodily fluid from a patient through the fluid handling network; transferring at least a portion of the sample of bodily fluid through the transfer coupling and through the one or more fluid passageways to the sample cell; and measuring an analyte in the at least a portion of the sample of bodily fluid in the sample cell. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification