US Patent 9789260 Device and system for drug information detection

An injected dose detection device which includes a housing having a joint surface surrounding an injection device and a through hole formed on the joint surface configured to communicate with an internal part of the housing, a vibration sensor disposed in the internal part of the housing configured to detect at least one vibration signal based on a minimum vibration threshold, a vibration transmitting element positioned directly between the vibration sensor and the injection device and configured to transmit the at least one vibration signal and a processing unit configured to process the at least one vibration signal for generating injected dose information corresponding to the injected dose.