HETEROGENEOUS ANALYTE SENSOR APPARATUS AND METHODS
First Claim
1. An implantable blood analyte sensing device, comprising:
- at least one first analyte detector of a first type;
at least one second analyte detector of a second type differing from the first type; and
logic in signal communication with the at least one first analyte detector and the at least one second analyte detector, the logic configured to utilize signals generated by the at least one second analyte detector to enable at least one of;
(i) confirmation of a blood analyte level estimate obtained from signals generated by the at least one first analyte detector; and
/or (ii) calibration of a blood analyte level estimate obtained from signals generated by the at least one first analyte detector.
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Accused Products
Abstract
Implantable sensor and associated receiver apparatus, and methods of manufacturing, implantation, and use. In one embodiment, the sensor apparatus is a heterogeneous glucose sensor, including hydrogen peroxide-based detector elements and oxygen-based detector elements. The sensor apparatus utilizes one (type) of the detector elements to confirm the accuracy of, and/or calibrate, the second (type of) detector element, so as to among other things enable the second type of detector to operate more robustly, and/or for a longer period without external calibration and/or explants. In one variant, the heterogeneous detector types are contained within a common biocompatible implantable housing. In another variant, the first type of detector (e.g., oxygen based) is disposed within a separable module that can operate independently of (or mechanically and/or electrically interface with) the second type of detector. In yet another variant, an external receiver compatible with both the first and second types is disclosed.
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Citations
24 Claims
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1. An implantable blood analyte sensing device, comprising:
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at least one first analyte detector of a first type; at least one second analyte detector of a second type differing from the first type; and logic in signal communication with the at least one first analyte detector and the at least one second analyte detector, the logic configured to utilize signals generated by the at least one second analyte detector to enable at least one of;
(i) confirmation of a blood analyte level estimate obtained from signals generated by the at least one first analyte detector; and
/or (ii) calibration of a blood analyte level estimate obtained from signals generated by the at least one first analyte detector. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of operating an implantable sensing device, comprising:
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utilizing at least a first detector element of the sensing device to determine blood analyte level within a host being; and utilizing at least a second detector element of the sensing device to confirm the determined blood analyte level. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of operating an implantable sensing device, comprising:
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utilizing at least a first detection enzyme apparatus of the sensing device to determine blood analyte level within a host being; and at least periodically utilizing at least a second detection enzyme apparatus of the sensing device to calibrate the determined blood analyte level; wherein the second detection enzyme apparatus comprises an enzyme matrix which is configured to mitigate foreign body response within the host being through elimination of a substance or compound formed within the second detector enzyme apparatus, which is also used within the first detector enzyme apparatus for said determination of blood analyte level.
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14. A blood analyte sensing device configured for implantation in a living host being, comprising:
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at least one first analyte detector of a first type; at least one second analyte detector of a second type differing from the first type; a communications interface; and logic in signal communication with the at least one first analyte detector and the at least one second analyte detector and the communications interface, the logic configured to process signals generated by the at least one first analyte detector and the at least one second analyte detector so as to enable transmission via the communications interface to a receiving apparatus external to the host being. - View Dependent Claims (15, 16)
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17. A blood analyte sensing module configured for implantation in a living host along with another sensing device, the module comprising:
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at least one analyte detector utilizing an enzyme matrix for detection of blood analyte levels; a wireless communications interface; and logic in signal communication with the at least one analyte detector and the wireless communications interface, the logic configured to process signals generated by the at least one analyte detector for transmission via the wireless communications interface to a receiving apparatus external to the host, the receiving apparatus associated with the another sensing device. - View Dependent Claims (18, 19)
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20. A blood analyte sensing module configured for implantation in a living host being along with another sensing device, the module comprising:
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at least one analyte detector utilizing an enzyme matrix for detection of blood analyte levels; a first communications interface; a wireless communications interface; and logic in signal communication with the at least one analyte detector, the first communications interface, and the wireless communications interface, the logic configured to process at least signals generated by the at least one analyte detector for transmission via the wireless communications interface to a receiving apparatus external to the host being, the receiving apparatus associated with the sensing module. - View Dependent Claims (21)
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22. Wireless receiver apparatus configured to receive data from each of:
- (i) an implanted blood analyte sensing device; and
(ii) another blood analyte sensing device, the receiver apparatus comprising;a wireless communications interface; and computerized processing logic in signal communication with the wireless communications interface, the logic configured to process at least (i) data generated by the implanted blood analyte sensing device and received via the wireless communications interface; and
(ii) data generated by the another blood analyte sensing device and received via the wireless communications interface. - View Dependent Claims (23, 24)
- (i) an implanted blood analyte sensing device; and
Specification