Apparatus and methods for detecting optical signals from implanted sensors
First Claim
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1. An apparatus, comprising:
- a planar base;
a light source coupled to the planar base and configured to transmit an excitation optical signal through a first surface area of skin to an implanted sensor;
one or more detectors coupled to the planar base and configured to detect an analyte-dependent optical signal emitted from the implanted sensor through a second surface area of skin in response to the implanted sensor being illuminated by the excitation optical signal, the second surface area of the skin being at least four times the first surface area of the skin;
a first lens from an array of lenses, the first lens configured to focus at least a portion of the analyte-dependent optical signal onto at least one of the one or more detectors, the first lens defining a first lens axis; and
a second lens from the array of lenses, the second lens configured to focus at least a portion of the analyte-dependent optical signal onto at least one of the one or more detectors, the second lens defining a second lens axis substantially parallel to and non-coaxial with the first lens axis.
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Abstract
Some embodiments described herein relate to an apparatus including a light source configured to transmit an excitation optical signal to an implanted sensor and a detector configured to detect an analyte-dependent optical signal emitted from an implanted sensor. The apparatus can include a lens configured to focus at least a portion of the analyte-dependent optical signal onto the detector.
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Citations
27 Claims
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1. An apparatus, comprising:
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a planar base; a light source coupled to the planar base and configured to transmit an excitation optical signal through a first surface area of skin to an implanted sensor; one or more detectors coupled to the planar base and configured to detect an analyte-dependent optical signal emitted from the implanted sensor through a second surface area of skin in response to the implanted sensor being illuminated by the excitation optical signal, the second surface area of the skin being at least four times the first surface area of the skin; a first lens from an array of lenses, the first lens configured to focus at least a portion of the analyte-dependent optical signal onto at least one of the one or more detectors, the first lens defining a first lens axis; and a second lens from the array of lenses, the second lens configured to focus at least a portion of the analyte-dependent optical signal onto at least one of the one or more detectors, the second lens defining a second lens axis substantially parallel to and non-coaxial with the first lens axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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a light source configured to transmit an excitation optical signal to a sensor implanted at a depth of at least 1 mm under a surface of a skin; a detector configured to detect an analyte-dependent optical signal emitted from the sensor in response to the sensor being illuminated by the excitation optical signal, at least a portion of the detector spaced at least 2 mm from the light source such that at least the portion of the detector is spaced apart from the light source at least twice the depth of the sensor; a cover configured to be disposed between the detector and the skin, the detector being less than 2 mm from the cover; and a monolithically formed array of lenses disposed between the cover and the detector, a lens from the monolithically formed array of lenses configured to focus a portion of the analyte-dependent optical signal onto the detector. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus, comprising:
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a light source configured to transmit an excitation optical signal to an implanted sensor; a base defining an opening, the light source configured to transmit the excitation optical signal to the implanted sensor through the opening; one or more detectors coupled to the base and configured to detect an analyte-dependent optical signal emitted from the implanted sensor in response to the implanted sensor being illuminated by the excitation optical signal; a first lens from an array of lenses, the first lens configured to focus at least a portion of the analyte-dependent optical signal onto the at least one of the one or more detectors, the first lens defining a first lens axis; and a second lens from the array of lenses, the second lens configured to focus at least a portion of the analyte-dependent optical signal onto at least one of the one or more detectors, the second lens defining a second lens axis substantially parallel to and non-coaxial with the first lens axis. - View Dependent Claims (26, 27)
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Specification