Biological fluid analysis device
First Claim
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1. A biological fluid analysis device comprising:
- a housing including a biological fluid analysis chamber suitable for receiving a plasma-containing portion of biological fluid;
a vent communicating with the analysis chamber, the vent comprising a porous medium having a bacterial blocking pore rating; and
a biosensor communicating with the analysis chamber, the biosensor comprising an electrochemical-enzymatic sensor including a working electrode and a reference electrode, wherein the biosensor is arranged to monitor oxygen concentration in the analysis chamber over at least about a 4 hour time period; and
at least one visible marker that is activated while a change in oxygen concentration is monitored.
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Abstract
A biological fluid analysis device (100) including a biosensor (50) comprising an electrochemical-enzymatic sensor including a working electrode (51) and a reference electrode (52), is disclosed.
230 Citations
26 Claims
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1. A biological fluid analysis device comprising:
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a housing including a biological fluid analysis chamber suitable for receiving a plasma-containing portion of biological fluid; a vent communicating with the analysis chamber, the vent comprising a porous medium having a bacterial blocking pore rating; and a biosensor communicating with the analysis chamber, the biosensor comprising an electrochemical-enzymatic sensor including a working electrode and a reference electrode, wherein the biosensor is arranged to monitor oxygen concentration in the analysis chamber over at least about a 4 hour time period; and at least one visible marker that is activated while a change in oxygen concentration is monitored. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A biological fluid analysis device comprising:
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a housing including a biological fluid analysis chamber suitable for receiving a plasma-containing portion of biological fluid; a vent communicating with the analysis chamber, the vent comprising a porous medium having a bacterial blocking pore rating; and a biosensor communicating with the analysis chamber, the biosensor comprising an electrochemical-enzymatic sensor including a working electrode and a reference electrode, wherein the biosensor includes laccase and is arranged to detect oxygen concentration in the analysis chamber; further comprising a flexible blood bag in fluid communication with the biological fluid analysis device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for processing a biological fluid comprising:
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passing a portion of a biological fluid into an analysis chamber of a biological fluid analysis device comprising;
a housing including a biological fluid analysis chamber suitable for receiving a plasma-containing portion of biological fluid;
a vent communicating with the analysis chamber, the vent comprising a porous medium having a bacterial blocking pore rating; and
a biosensor communicating with the analysis chamber, the biosensor comprising an electrochemical-enzymatic sensor including a working electrode and a reference electrode, wherein the biosensor is arranged to monitor oxygen concentration in the analysis chamber;detecting the oxygen concentration in the analysis chamber; activating a first indicator lamp when a change in oxygen concentration is monitored; and activating at least a second indicator lamp when a decrease in the oxygen concentration reaches a preset reference value. - View Dependent Claims (22, 23, 24, 25)
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26. A biological fluid analysis device comprising:
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a housing including a biological fluid analysis chamber suitable for receiving a plasma-containing portion of biological fluid; a vent communicating with the analysis chamber, the vent comprising a porous medium having a bacterial blocking pore rating; and a biosensor communicating with the analysis chamber, the biosensor comprising an electrochemical-enzymatic sensor including a working electrode and a reference electrode, wherein the biosensor is arranged to monitor oxygen concentration in the analysis chamber over at least about a 4 hour period of time; and at least one visible market that is activated while the oxygen concentration is monitored.
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Specification