×

Injection device comprising an optical sensor

  • US 9,522,238 B2
  • Filed: 05/30/2014
  • Issued: 12/20/2016
  • Est. Priority Date: 05/10/2005
  • Status: Active Grant
First Claim
Patent Images

1. An injection device comprising:

  • a dose setting member adapted to set a dose of a medicament to be injected from the injection device,a position determining arrangement for determining the amount of a set dose or the amount of an injected dose, the position determining arrangement comprising a rotatably mounted member having at least one optically coded path or track arranged on an outer surface thereof,an optic sensor arrangement adapted to sense the optically coded path(s) or track(s), anda control circuit coupled to the optic sensor arrangement to determine the position of the rotatably mounted member relative to the optic sensor arrangement,wherein the optically coded path(s) or track(s) is/are arranged as helically extending path(s) or track(s) defining a series of information elements on the rotatably mounted member.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×