US 11,771,837 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 Aug. 4, 2022, as Appl. No. 17/880,879.
Application 17/880,879 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 2022/0370725 A1, Nov. 24, 2022
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)] 5 Claims
OG exemplary drawing
 
1. An electronic system for a drug delivery device, the electronic system comprising:
a dose setting and drive mechanism which is configured to perform a dose setting operation for setting a dose to be delivered by the drug delivery device and a dose delivery operation for delivering the set dose,
the dose setting and drive mechanism comprising a first member and a second member, wherein the dose setting and drive mechanism is configured such that, in the dose delivery operation, the first member rotates relative to the second member,
an electronic control unit configured to control an operation of the electronic system, the electronic system having a first state and a second state, wherein the electronic system has an increased electrical power consumption in the second state as compared to the first state,
an electrical use detection unit, the electrical use detection unit being operatively connected to the electronic control unit, the electrical use detection unit being configured to generate a use signal which indicates that the user has commenced the dose delivery operation, wherein:
the first member is provided with circumferentially disposed teeth;
the electronic system comprises a switch which is operatively coupled to the second member and which is arranged to cooperate with the teeth during rotation of the first member relative to the second member during the dose delivery operation, wherein the switch comprises a pair of contacts that are configured to generate the use signal by moving into contact with one another when the switch is engaged by one of the teeth during the rotation of the first member relative to the second member; and
the electronic system is configured such that it is switched from the first state into the second state by the electronic control unit in response to the use signal.