US 11,918,792 B2
Dose detection module for a medication delivery device
Matthew Thomas Antonelli, Oakland, CA (US); William Churchill Taliaferro Burke, San Francisco, CA (US); Roy Howard Byerly, Indianapolis, IN (US); Christopher Robert McCaslin, Alameda, CA (US); Ethan Edward Pease, Sausalito, CA (US); and Kenneth Alan Ritsher, Lowell, MA (US)
Filed by Eli Lilly and Company, Indianapolis, IN (US)
Filed on Dec. 13, 2022, as Appl. No. 18/065,159.
Application 18/065,159 is a continuation of application No. 16/632,450, granted, now 11,529,470, previously published as PCT/US2018/019108, filed on Feb. 22, 2018.
Claims priority of provisional application 62/547,962, filed on Aug. 21, 2017.
Prior Publication US 2023/0110794 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01)
CPC A61M 5/31568 (2013.01) [A61M 5/3155 (2013.01); A61M 5/31585 (2013.01); A61M 2205/332 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/3365 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A dose detection module for a medication delivery device, the medication delivery device including 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 axially and rotationally fixed with said dose setting member in a first operating mode during dose setting, the dose detection module comprising:
a module body attachable to the actuator;
a sensed element 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.