Orthogonally redundant sensor systems and methods
First Claim
1. A continuous glucose monitoring system comprising:
- an orthogonally redundant glucose sensor, comprising;
an optical glucose sensor including a lightguide on a first respective substrate and having a distal portion configured for internal placement in a body of a user; and
a non-optical glucose sensor including at least one electrode on a second respective substrate and having a distal portion configured for internal placement in the user'"'"'s body,wherein said first and second respective substrates are integrated into an integrated flex circuit, and wherein said lightguide is disposed in an interior of said integrated flex circuit and said at least one electrode is disposed on an external surface of said integrated flex circuit;
an insertion device including an insertion needle, wherein said integrated flex circuit is configured to be carried inside said needle for simultaneous insertion of said optical glucose sensor and said non-optical glucose sensor into the user'"'"'s body; and
an external transmitter.
1 Assignment
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Accused Products
Abstract
A continuous glucose monitoring system may include a hand-held monitor, a transmitter, an insulin pump, and an orthogonally redundant glucose sensor, which may comprise an optical glucose sensor and a non-optical glucose sensor. The former may be a fiber optical sensor, including a competitive glucose binding affinity assay with a glucose analog and a fluorophore-labeled glucose receptor, which is interrogated by an optical interrogating system, e.g., a stacked planar integrated optical system. The non-optical sensor may be an electrochemical sensor having a plurality of electrodes distributed along the length thereof. Proximal portions of the optical and electrochemical sensors may be housed inside the transmitter and operationally coupled with instrumentation for, e.g., receiving signals from the sensors, converting to respective glucose values, and communicating the glucose values. The sensors'"'"' distal portions may be inserted into a user'"'"'s body via a single delivery needle and may be co-located inside the user'"'"'s body.
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Citations
23 Claims
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1. A continuous glucose monitoring system comprising:
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an orthogonally redundant glucose sensor, comprising; an optical glucose sensor including a lightguide on a first respective substrate and having a distal portion configured for internal placement in a body of a user; and a non-optical glucose sensor including at least one electrode on a second respective substrate and having a distal portion configured for internal placement in the user'"'"'s body, wherein said first and second respective substrates are integrated into an integrated flex circuit, and wherein said lightguide is disposed in an interior of said integrated flex circuit and said at least one electrode is disposed on an external surface of said integrated flex circuit; an insertion device including an insertion needle, wherein said integrated flex circuit is configured to be carried inside said needle for simultaneous insertion of said optical glucose sensor and said non-optical glucose sensor into the user'"'"'s body; and an external transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification