| abstract |
A dosimetric inhalation device for inhaling a vaporized substance that includes metering capabilities to inform a user when a particular amount of substance such as a medicant has been consumed, including include a sensor that senses the vaporized substance and a processor that utilizes data from the sensor to meter the amount consumed. When the user stops inhaling the inhalation device will halt vapor production and will resume production when the user resumes inhaling. The device accepts a desired dosage input from the user. When the desired dosage has been produced, the processor may turn off the vaporization by cutting off power to the heater. An output member in the form of a light, sound or vibration can be used to alert the user to the completion of the desired dosage and can also numerically or otherwise display the delivered dosage, for example in mass units such as milligrams. |