System for assessing the efficacy of stored red blood cells using microvascular networks
First Claim
1. A system comprising:
- a network device comprising;
an inlet;
an outlet;
at least one network unit in fluid communication with said inlet and said outlet comprising a plurality of microchannels,wherein said plurality of microchannels comprisesi) at least one parent microchannel branching into two daughter microchannels of unequal diameter or width, at least one of said two daughter microchannels branching at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one parent channel, andii) at least one converged microchannel converging from two microchannels at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one converged microchannel;
andan analysis device comprising;
one or more sensors configured to capture measurements related to a sample of blood cells flowing from said inlet to said outlet when said system is in use; and
a processor comprising a memory device for determining the microvascular fitness of said sample of blood cells based on said measurements.
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Accused Products
Abstract
A system for assessing the microvascular fitness of a sample of stored red blood cells. The system has a network device having at least one network unit. The network unit has a single inlet and a single outlet for the sample and a plurality of microchannels. The plurality of microchannels receive the sample from the single inlet and drain the sample into the single outlet. The network unit includes an aspiration pressure means for providing movement of liquid sample through the at least one network unit. The system further includes an analysis unit that receives the network device therein. The analysis unit includes a sensor for capturing measurements related to the sample and a processor capable of comparing the captured measurements to measurements stored in a database of healthy red blood cells to determine the microvascular fitness of the stored red blood cells.
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Citations
38 Claims
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1. A system comprising:
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a network device comprising; an inlet; an outlet; at least one network unit in fluid communication with said inlet and said outlet comprising a plurality of microchannels, wherein said plurality of microchannels comprises i) at least one parent microchannel branching into two daughter microchannels of unequal diameter or width, at least one of said two daughter microchannels branching at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one parent channel, andii) at least one converged microchannel converging from two microchannels at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one converged microchannel;and an analysis device comprising; one or more sensors configured to capture measurements related to a sample of blood cells flowing from said inlet to said outlet when said system is in use; and a processor comprising a memory device for determining the microvascular fitness of said sample of blood cells based on said measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 35, 36, 37)
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17. A method for assessing the microvascular fitness of a sample of blood cells comprising:
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obtaining and storing measurements from a plurality of samples of healthy blood cells; flowing a sample of blood cells through a network device and sensing measurements related to said sample of blood cells with an analysis device; and comparing measurements obtained from said plurality of samples of healthy blood cells to measurements derived from said sample of blood cells with said analysis device to determine the microvascular fitness of said sample of blood cells, wherein said network device comprises; an inlet; an outlet; at least one network unit in fluid communication with said inlet and said outlet comprising a plurality of microchannels, wherein said plurality of microchannels comprises i) at least one parent microchannel branching into two daughter microchannels of unequal diameter or width, at least one of said two daughter microchannels branching at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one parent channel, andii) at least one converged microchannel converging from two microchannels at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one converged microchannel, andwherein said analysis device comprises; one or more sensors configured to capture measurements related to said sample of blood cells flowing from said inlet to said outlet; and a processor comprising a memory device for determining the microvascular fitness of said sample of blood cells based on said measurements. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A device comprising:
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at least one network unit comprising a single inlet; a single outlet; and a plurality of microchannels receiving a sample from said single inlet and drains said sample into said single outlet; and a substrate disposed beneath said at least one network unit, wherein said plurality of microchannels comprises i) at least one parent microchannel that branching into two daughter microchannels of unequal diameter or width, at least one of said two daughter microchannels branching at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one parent microchannel, and ii) at least one converged microchannel converging from of two daughter microchannels at an angle from approximately 20°
to approximately 80°
, measured relative to the axis of said at least one converged microchannel. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 38)
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Specification