US 12,226,619 B2
Medication delivery device with sensing system
Roy Howard Byerly, Indianapolis, IN (US); Daniel Joseph Nelsen, Central Falls, RI (US); Russell Wayne Perkins, Carmel, IN (US); and Robert Charles Uschold, Leominster, MA (US)
Assigned to ELI LILLY AND COMPANY, Indianapolis, IN (US)
Filed by Eli Lilly and Company, Indianapolis, IN (US)
Filed on Jul. 29, 2022, as Appl. No. 17/877,114.
Application 17/877,114 is a continuation of application No. 16/632,730, granted, now 11,471,608, previously published as PCT/US2018/046585, filed on Aug. 14, 2018.
Claims priority of provisional application 62/676,576, filed on May 25, 2018.
Claims priority of provisional application 62/547,928, filed on Aug. 21, 2017.
Prior Publication US 2022/0362480 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01)
CPC A61M 5/31568 (2013.01) [A61M 5/31551 (2013.01); A61M 2205/0294 (2013.01); A61M 2205/3327 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An apparatus for detecting a manipulation of an injection device, the apparatus comprising:
a sensed element that is configured to be rotatable relative to a pin having a distal end and a proximal end connected by a shaft, wherein the distal end of the pin comprises a contact surface and the proximal end of the pin comprises a support having a cross-sectional area that is larger than a cross-sectional area of the shaft;
a resilient member arranged to urge the contact surface of the pin into contact with the sensed element such that rotation of the sensed element relative to the pin causes reciprocating motion of the pin;
an accelerometer disposed on the support at the proximal end of the pin configured to detect vibrations indicative of the reciprocating motion of the pin;
a background accelerometer configured to detect background vibrations caused by movement of the entire apparatus; and
a controller configured to compare the vibrations detected by the accelerometer with background vibrations detected by the background accelerometer to identify vibrations indicative of rotation of the sensed element.