Dose measurement system and method

摘要

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.

主权项

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, the at least one processor operable to combine the received data into a signal signature representative of the electromagnetic radiation detected by the plurality of sensors, the at least one processor further configured to associate the signal signature with at least one reference signature, the at least one reference signature being representative of a property of the container.