Patent ID: 11931557
Assignee: SANOFI
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A medicament delivery system comprising:
a medicament delivery device comprising:
a medicament reservoir,
a lead screw, and
a drive sleeve that is rotatable to axially displace the lead screw relative to the drive sleeve to dispense a medicament from the medicament reservoir, wherein the drive sleeve is prevented from rotating during dose setting; and

a dosage measurement system comprising:
a sensor unit configured to measure a rotation of at least one of the drive sleeve and the lead screw of the medicament delivery device, wherein the sensor unit is further configured to be at least partially located within the drive sleeve of the medicament delivery device; and
a processor configured to determine a dosage dispensed from the medicament reservoir of the medicament delivery device based on a measured rotation of at least one of the drive sleeve and the lead screw.