Dose detection with piezoelectric sensing for medication delivery device

• Main Authors: PSZENNY SEAN MATTHEW, KATUIN JOSEPH EDWARD
• Format: Patent
• Language: Chinese; English
• Published: 17.04.2020
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The present disclosure relates to a medication delivery device having a dose detection system and an associated control system configured to determine an amount of medication delivered from the medication delivery device based on the sensing of relative rotation within the medication delivery device. The relative rotation may occur between a dose setting member and an actuator and/or housing of the medication delivery device. The rotation sensing may involve piezoelectric sensing, more specifically repeatedly deforming a piezoelectric sensor with a mechanical force. The dose detection system may be a modular or integral component of the medication delivery device. 本公开涉及具有剂量检测系统和相关联的控制系统的药物递送装置，所述药物递送装置被配置为基于感测药物递送装置内的相对旋转而确定从药物递送装置递送的药物的量。相对旋转可发生在药物递送装置的剂量设定构件和致动器和/或壳体之间。旋转感测可涉及压电感测，更具体地，涉及利用机械力而使压电感测器反复变形。剂量检测系统可为模块化的，或可为药物递送装置的一体部件。