Device and method for determining analyte levels
First Claim
Patent Images
1. A system for processing sensor data from a continuous analyte sensor, comprising:
- a sensor comprising an electrode configured for implantation in a subcutaneous tissue of a host, wherein the sensor is configured to continuously measure an analyte concentration, whereby sensor data associated with the subcutaneous analyte concentration is generated; and
electronic circuitry operably connected to the sensor and configured to perform an initial in vivo calibration of the sensor data using pre-implant calibration information;
wherein the system is configured to provide a substantially accurate measurement of the analyte concentration in the host such that at least 95% of calibrated sensor analyte values as determined by analysis of blood obtained during a useful life of the sensor are within 25% of actual analyte values.
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Reexamination
Accused Products
Abstract
Devices and methods for determining analyte levels are described. The devices and methods allow for the implantation of analyte-monitoring devices, such as glucose monitoring devices, that result in the delivery of a dependable flow of blood to deliver sample to the implanted device. The devices comprise a unique microarchitectural arrangement in the sensor region that allows accurate data to be obtained over long periods of time.
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Citations
130 Claims
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1. A system for processing sensor data from a continuous analyte sensor, comprising:
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a sensor comprising an electrode configured for implantation in a subcutaneous tissue of a host, wherein the sensor is configured to continuously measure an analyte concentration, whereby sensor data associated with the subcutaneous analyte concentration is generated; and electronic circuitry operably connected to the sensor and configured to perform an initial in vivo calibration of the sensor data using pre-implant calibration information; wherein the system is configured to provide a substantially accurate measurement of the analyte concentration in the host such that at least 95% of calibrated sensor analyte values as determined by analysis of blood obtained during a useful life of the sensor are within 25% of actual analyte values. - 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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24. A method for processing sensor data from a continuous analyte sensor, comprising:
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receiving sensor data from an analyte sensor, the sensor data indicative of an analyte concentration in a host; calibrating the sensor data, after insertion of the analyte sensor in the host, by using pre-implant calibration information; and generating, using an electronic system, a substantially accurate measurement of the analyte concentration, such that at least 95% of calibrated sensor analyte values are within 25% of actual analyte values as determined by analysis of blood obtained during a useful life of the sensor. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A system for processing sensor data from a continuous analyte sensor, comprising:
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a sensor comprising an electrode configured for implantation in a subcutaneous tissue of a host, wherein the sensor is configured to continuously measure an analyte concentration, whereby sensor data associated with the subcutaneous analyte concentration is generated; and electronic circuitry operably connected to the sensor and configured to perform an initial in vivo calibration of the sensor data using only pre-implant calibration information; wherein the system is configured to provide a substantially accurate measurement of the analyte concentration in the host such that at least 95% of calibrated sensor analyte values as determined by analysis of blood obtained during a useful life of the sensor are within 25% of actual analyte values. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. A method for processing sensor data from a continuous analyte sensor, comprising:
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receiving sensor data from an analyte sensor, the sensor data indicative of an analyte concentration in a host; calibrating the sensor data, after insertion of the analyte sensor in the host, by using only pre-implant calibration information; and generating, using an electronic system, a substantially accurate measurement of the analyte concentration, such that at least 95% of calibrated sensor analyte values are within 25% of actual analyte values as determined by analysis of blood obtained during a useful life of the sensor. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86)
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87. A system for processing sensor data from a continuous analyte sensor, comprising:
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a sensor comprising an electrode configured for implantation in a subcutaneous tissue of a host, wherein the sensor is configured to continuously measure an analyte concentration, whereby sensor data associated with the subcutaneous analyte concentration is generated; and electronic circuitry operably connected to the sensor and configured to perform an initial in vivo calibration of the sensor data using pre-implant calibration information, wherein the electronic circuitry is further configured to perform recalibration after an initial calibration time period; and wherein the system is configured to provide a substantially accurate measurement of the analyte concentration in the host such that at least 95% of calibrated sensor analyte values as determined by analysis of blood obtained during a useful life of the sensor are within 25% of actual analyte values. - View Dependent Claims (88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109)
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110. A method for processing sensor data from a continuous analyte sensor, comprising:
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receiving sensor data from an analyte sensor, the sensor data indicative of an analyte concentration in a host; calibrating the sensor data, after insertion of the analyte sensor in the host, by using pre-implant calibration information; recalibrating the sensor data after an initial calibration time period; and generating, using an electronic system, a substantially accurate measurement of the analyte concentration, such that at least 95% of calibrated sensor analyte values are within 25% of actual analyte values as determined by analysis of blood obtained during a useful life of the sensor. - View Dependent Claims (111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130)
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Specification