US 11,850,405 B2
Supplementary devices for attachment to drug delivery devices, number sleeve for drug delivery devices, and drug delivery devices
Stephan Riedel, Frankfurt am Main (DE)
Assigned to Sanofi-Aventis Deutschland GMBH, Frankfurt am Main (DE)
Filed by Sanofi-Aventis Deutschland GMBH, Frankfurt am Main (DE)
Filed on Oct. 29, 2020, as Appl. No. 17/084,254.
Application 17/084,254 is a division of application No. 16/303,982, granted, now 11,123,493, previously published as PCT/EP2017/062645, filed on May 24, 2017.
Claims priority of application No. 16171083 (EP), filed on May 24, 2016.
Prior Publication US 2021/0069423 A1, Mar. 11, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/315 (2006.01); G16H 20/17 (2018.01); G16H 20/10 (2018.01); A61M 5/31 (2006.01)
CPC A61M 5/31535 (2013.01) [A61M 5/31551 (2013.01); G16H 20/10 (2018.01); G16H 20/17 (2018.01); A61M 2005/3126 (2013.01); A61M 2205/3569 (2013.01); A61M 2205/502 (2013.01); A61M 2205/52 (2013.01); A61M 2205/581 (2013.01); A61M 2205/584 (2013.01); A61M 2205/6081 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A drug administration apparatus comprising:
a number sleeve comprising a generally cylindrical outer surface on which are provided a sequence of numbers arranged at different locations on the surface with the sequence provided in a helix, each of the sequence of numbers relating to a drug dose, wherein the surface at locations corresponding to doses within a specific dose range and the surface at locations corresponding to doses that are outside of the specific dose range have different characteristics;
an imaging arrangement configured to provide image data representing a captured image of a portion of the sequence of numbers provided on the number sleeve at a location on the number sleeve, one of the sequence of numbers corresponding to a currently set dose of medicament; and
a processor arrangement configured to:
receive the image data representing the captured image;
process the image data representing the captured image to identify one or more optically-detectable characteristics of the number sleeve at the location; and
determine from the identified one or more optically-detectable characteristics of the number sleeve whether the currently set dose of medicament is a permitted dose.