OPTICAL-BASED SENSING DEVICES
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Abstract
The present invention provides an electro-optical sensing device for detecting the presence or concentration of an analyte. More particularly, the invention relates to (but is not in all cases necessarily limited to) optical-based sensing devices which are characterized by being totally self-contained, with a smooth and rounded oblong, oval, or elliptical shape (e.g., a bean- or pharmaceutical capsule-shape) and a size which permits the device to be implanted in humans for in-situ detection of various analytes.
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Citations
46 Claims
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1-28. -28. (canceled)
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29. An electro-optical sensing device for detecting the presence or concentration of an analyte, comprising:
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a housing having an outer surface; a plurality of indicator molecules located on at least a portion of the outer surface of the housing; a circuit board housed within the housing; a first photodetector connected to the circuit board for detecting a response of the indicator molecules; a second photodetector connected to the circuit board for detecting the response of a reference fluorescent element; and a radiation source positioned a distance above the photosensitive sides of the first and second photodetectors. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification