Patent ID: 11918792
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 11:
12. A medication delivery device, comprising:
a device body;
a dose setting member attached to said device body and rotatable relative to said device body about an axis of rotation during at least one of dose setting and dose delivery;
an actuator attached to said device body, said actuator being rotationally fixed with said dose setting member in a first operating mode during dose setting;
a dose detection module comprising:
a module body attachable to the actuator;
a sensed element attached to and rotationally fixed with said dose setting member, said sensed element including alternating surface features radially-spaced about the axis of rotation of said dose setting member;
a rotation sensor including a following member, the following member extending axially and including a contact portion resting radially against said sensed element, the contact portion being positioned to move over the surface features during rotation of said sensed element relative to the following member, said rotation sensor being responsive to the movement of the contact portion over the surface features to detect the rotation of the dose setting member; and
a controller responsive to said rotation sensor to determine data based on the detected rotation of said dose setting member.