Rotary Sensor Module with Resynchronization Feature

Drug delivery device comprising expelling means allowing a user to set a dose corresponding to a number of increments from an initial state, an indication member adapted to rotate in a first direction corresponding to the set dose, and rotate in an opposed second direction corresponding to an expell...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Madsen John Oestergaard
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CALCULATING COMPUTING COUNTING 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 ELECTRIC DIGITAL DATA PROCESSING HUMAN NECESSITIES HYGIENE MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MEDICAL OR VETERINARY SCIENCE PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	Drug delivery device comprising expelling means allowing a user to set a dose corresponding to a number of increments from an initial state, an indication member adapted to rotate in a first direction corresponding to the set dose, and rotate in an opposed second direction corresponding to an expelled dose, the indication member having an initial rotational position corresponding to both the initial state and the fully expelled dose state. Sensor means having an incremental counter synchronized with the rotational position of the indication member and having a reference point corresponding to the initial rotational position of the indication member. After detecting an error state the sensor means is adapted to re-synchronize by detecting the number of rotational increments for a set dose and for a subsequent expelled dose. If the numbers are identical the reference point is reset corresponding to the current rotational position of the indication member.