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 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 calibrate the sensor data during a useful life of the system 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 are within 25% of actual analyte values as determined by analysis of blood obtained during the useful life of the system.
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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.
947 Citations
110 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 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 calibrate the sensor data during a useful life of the system 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 are within 25% of actual analyte values as determined by analysis of blood obtained during the useful life of the system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for processing sensor data from a continous 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 during a useful life of the sensor 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 the useful life of the sensor system. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. 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 calibrate the sensor data throughout a useful life of the system 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 are within 25% of actual analyte values as determined by analysis of blood obtained throughout the useful life of the system. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. 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 throughout a useful life of the sensor using pre-implant calibration; 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 throughout the useful life of the sensor. - View Dependent Claims (59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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64. The method of 58, further comprising determining trends in analyte concentration.
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74. 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 calibrate the sensor data during a useful life of the system using pre-implant calibration information, wherein the electronic circuitry is further configured to perform recalibration after an initial calibration time period; 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 are within 25% of actual analyte values as determined by analysis of blood obtained during the useful life of the system. - View Dependent Claims (75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)
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94. 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 during a useful life of the sensor using pre-implant calibration; periodically 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 the useful life of the sensor. - View Dependent Claims (95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110)
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Specification