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Multi-dose drug delivery device

  • US 10,363,374 B2
  • Filed: 05/26/2017
  • Issued: 07/30/2019
  • Est. Priority Date: 05/26/2016
  • Status: Active Grant
First Claim
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1. A drug delivery device for delivering a liquid drug to a patient over two or more doses, comprising:

  • a drug container configured to store the liquid drug, a first end of the drug container sealed by a plunger;

    a needle conduit coupled to the plunger;

    a needle insertion component coupled to the needle conduit; and

    a drive component coupled to the plunger, the drive component comprising a dosing wheel and a plurality of spheres,wherein the dosing wheel comprises a hub and a plurality of radially extending arms,wherein at least one radially extending arm of the plurality of radially extending arms is positioned between adjacent spheres of the plurality of spheres,wherein a rotation of the dosing wheel in a first direction advances the plurality of spheres toward the plunger, andwherein the plurality of spheres are configured to apply a force to the plunger to move the plunger toward a second end of the drug container to expel the liquid drug out of the drug container through the first end into the needle conduit.

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