US 11,957,542 B2
Sensing complete injection for animal injection device
Luke Magyar, Ames, IA (US); and David Royce Edwards, Ames, IA (US)
Assigned to Automed Patent Holdco, LLC, Loveland, CO (US)
Filed by Automed Patent Holdco LLC, Loveland, CO (US)
Filed on Apr. 30, 2020, as Appl. No. 16/863,423.
Prior Publication US 2021/0338402 A1, Nov. 4, 2021
Int. Cl. G08B 21/04 (2006.01); A61D 7/00 (2006.01); A61M 5/145 (2006.01); A61M 5/30 (2006.01); A61M 5/315 (2006.01); A61M 5/36 (2006.01); G16H 20/17 (2018.01); G16H 40/40 (2018.01); G16H 40/67 (2018.01); G16H 50/20 (2018.01); A61J 7/00 (2006.01); A61M 31/00 (2006.01)
CPC A61D 7/00 (2013.01) [A61M 5/1452 (2013.01); A61M 5/30 (2013.01); A61M 5/31568 (2013.01); A61M 5/365 (2013.01); G16H 20/17 (2018.01); G16H 40/40 (2018.01); G16H 40/67 (2018.01); G16H 50/20 (2018.01); A61J 7/0053 (2013.01); A61M 31/00 (2013.01); A61M 2205/13 (2013.01); A61M 2205/16 (2013.01); A61M 2205/18 (2013.01); A61M 2205/332 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/502 (2013.01); A61M 2205/6054 (2013.01); A61M 2210/0618 (2013.01); A61M 2250/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A semiautomated automated injection device comprising:
a controller comprising a processor;
a trigger input;
a user interface;
an electric motor configured to drive a syringe plunger, said syringe plunger being drivable by said electric motor in a retraction direction to draw a substance into a syringe barrel, and further drivable by said electric motor in an injection direction to force said substance from said syringe body;
a current sensor configured to sense energy consumed by said electric motor;
a distance sensor configured to sense a linear distance moved by said syringe plunger;
said controller configured to:
determine a length to drive said syringe plunger based on a dosage input, said length corresponding to a first dose;
receive a first trigger signal from said trigger input and in response, cause said electric motor to cause said syringe plunger to advance in said injection direction and monitor said current sensor and said distance sensor during said advance to administer said first dose;
compare said current and said distance to determine whether said first dose is fully administered;
when said first dose is fully administered, cause a first notice on said user interface, said first notice indicating a successful injection; and
when said first dose is not fully administered:
cause a second notice on said user interface, said second notice indicating an unsuccessful injection;
calculate a makeup dose based on said current and said distance;
receive a second trigger signal; and
cause said electric motor to cause said syringe plunger to advance in said injection direction and monitor said current sensor and said linear sensor during said advance to administer said makeup dose.