Portable sample analyzer system
First Claim
Patent Images
1. A sample analyzer comprising:
- an instrument having a slot; and
a cartridge including a flow channel, the cartridge configured to be inserted into the slot;
a light source positioned on a first side of the flow channel proximate to the cartridge when inserted in the slot; and
a detector positioned on the first side of the flow channel proximate to the cartridge when inserted in the slot; and
wherein;
the flow channel comprises a channel wall;
the channel wall has a first index of refraction;
a sample fluid in the flow channel has a second index of refraction;
the light source is for projecting light into the flow channel; and
the detector is configured to detect light reflected from an interface of the first and second indices of refraction and the light detected by the detector is indicative of the index of refraction of the fluid.
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Abstract
A system relating to sample analyzers, and more particular, to sample analyzers that are simple to operate and have a reduced risk of providing an erroneous result to a user. In some cases, the sample analyzer may be a portable sample analyzer that includes a disposable fluidic cartridge. The operators of the analyzers need not be trained.
164 Citations
14 Claims
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1. A sample analyzer comprising:
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an instrument having a slot; and a cartridge including a flow channel, the cartridge configured to be inserted into the slot; a light source positioned on a first side of the flow channel proximate to the cartridge when inserted in the slot; and a detector positioned on the first side of the flow channel proximate to the cartridge when inserted in the slot; and wherein; the flow channel comprises a channel wall; the channel wall has a first index of refraction; a sample fluid in the flow channel has a second index of refraction; the light source is for projecting light into the flow channel; and the detector is configured to detect light reflected from an interface of the first and second indices of refraction and the light detected by the detector is indicative of the index of refraction of the fluid. - View Dependent Claims (2, 3, 4, 5)
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6. A sample analyzer comprising:
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an instrument having a slot, an energy source and a detector; and a cartridge, having at least one flow channel, for insertion into the slot; wherein; the energy source and detector are positioned on a same side of the flow channel and adjacent to the flow channel; and the detector is configured to detect a property of a fluid in the flow channel indicative of undesirable particles or bubbles in the fluid in the flow channel. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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Specification