Dose measurement system and method
First Claim
1. An apparatus, comprising:
- a plurality of light sources disposed and configured to emit electromagnetic radiation toward a container;
a plurality of sensors optically coupleable to the plurality of light sources, each sensor of the plurality of sensors disposed and configured to detect the electromagnetic radiation emitted by at least two of the plurality of light sources; and
at least one processor configured to receive data representative of the detected electromagnetic radiation from each of the plurality of sensors, and generate a signal signature representative of the electromagnetic radiation detected by the plurality of sensors,wherein the plurality of light sources, the plurality of sensors, and the at least one processor are at least one of integrated with and coupled to a drug delivery device, andwherein the at least one processor is further configured to dynamically adapt a drug delivery schedule based on at least the signal signature.
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Accused Products
Abstract
Embodiments described herein generally relate to devices, systems and methods for measuring the dose remaining in a drug delivery device that is used for delivering a dose to a patient. In some embodiments, a dose measurement system for measuring the liquid volume in a container includes a plurality of light sources which are disposed and configured to emit electromagnetic radiation toward the container. A plurality of sensors are located in the apparatus that are optically coupleable to the plurality of light sources and are disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the light sources. The apparatus also includes a processing unit configured to receive data representing the portion of the detected electromagnetic radiation from each of the plurality of sensors. The processing unit is further operable to convert the received data into a signature representative of the electromagnetic radiation detected by the plurality of sensors.
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Citations
22 Claims
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1. An apparatus, comprising:
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a plurality of light sources disposed and configured to emit electromagnetic radiation toward a container; a plurality of sensors optically coupleable to the plurality of light sources, each sensor of the plurality of sensors disposed and configured to detect the electromagnetic radiation emitted by at least two of the plurality of light sources; and at least one processor configured to receive data representative of the detected electromagnetic radiation from each of the plurality of sensors, and generate a signal signature representative of the electromagnetic radiation detected by the plurality of sensors, wherein the plurality of light sources, the plurality of sensors, and the at least one processor are at least one of integrated with and coupled to a drug delivery device, and wherein the at least one processor is further configured to dynamically adapt a drug delivery schedule based on at least the signal signature. - View Dependent Claims (2, 3)
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4. An apparatus for estimating a dose delivered from an injection pen, the apparatus comprising:
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a communication interface; a memory to store processor-executable instructions; and at least one processor communicatively coupled to the memory and the communication interface, wherein upon execution of the processor-executable instructions by the at least one processor, the at least one processor; receives and combines first data representative of a portion of detected electromagnetic radiation from each of a plurality of sensors at a first time, the plurality of sensors optically coupleable to a plurality of light sources disposed and configured to emit electromagnetic radiation toward the injection pen, the plurality of sensors disposed and configured to detect the electromagnetic radiation emitted by at least a portion of the plurality of light sources, the at least one processor operable to convert the received first data to obtain a first signature representative of the electromagnetic radiation detected by the plurality of sensors at the first time; compares the first signature to a plurality of reference signatures to determine a first volume of liquid in the injection pen; receives and combines second data representative of a portion of the detected electromagnetic radiation from each of the plurality of sensors at a second time after the first time, the at least one processor operable to convert the received second data to obtain a second signature representative of the electromagnetic radiation detected by the plurality of sensors at the second time; compares the second signature to the plurality of reference signatures to determine a second volume of liquid in the injection pen; and estimates a dose delivered from the injection pen based on the first volume and the second volume, wherein the plurality of light sources, the plurality of sensors, and the at least one processor are at least one of integrated with and coupled to the injection pen, and wherein the at least one processor at least one of compares the estimated dose delivered from the injection pen to a medication schedule to monitor compliance and dynamically adapts the medication schedule based on at least the estimated dose. - View Dependent Claims (5, 6, 7)
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8. A health management system, comprising:
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a drug delivery device including a drug reservoir; and a dose measurement subsystem configured to be removably coupleable to the drug delivery device, the dose measurement system including a plurality of light sources disposed and configured to emit electromagnetic radiation toward the drug reservoir; a plurality of sensors optically coupleable to the plurality of light sources, each sensor of the plurality of sensors disposed and configured to detect a quantity of electromagnetic radiation communicated through the drug reservoir from at least two of the plurality of light sources, the quantity of electromagnetic radiation communicated through the drug reservoir being a signature representative of the volume of liquid remaining in the drug reservoir; and a display configured to present information to a user. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus, comprising:
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a plurality of light sources disposed and configured to emit electromagnetic radiation toward a container; a plurality of sensors optically coupleable to the plurality of light sources, each sensor of the plurality of sensors disposed and configured to detect the electromagnetic radiation emitted by at least two of the plurality of light sources; at least one processor configured to receive data representative of the detected electromagnetic radiation from each of the plurality of sensors, and generate a signal signature representative of the electromagnetic radiation detected by the plurality of sensors; and a communications module configured to communicate data between the apparatus and at least one of a user and a remote device. - View Dependent Claims (20, 21, 22)
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Specification