Patent No. EP3501584 (titled "Compliance Monitoring Module For A Breath-Actuated Inhaler") was filed by Norton Waterford on Aug 28, 2015. The application was issued on Aug 30, 2023.
A compliance monitoring system for breath-actuated inhalers that uses a miniature pressure sensor to detect patient inhalation characteristics. The sensor is pneumatically coupled to the inhaler's airflow path and provides data to a processor that determines whether the patient has inhaled in a manner sufficient to receive a full dose of medication. The system issues a dosing report based on this determination, enabling objective measurement of patient compliance.

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