Multi-dose drug delivery device
First Claim
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A wearable drug delivery device that can deliver a liquid drug stored in a container to a patient is provided. The container can be a prefilled cartridge that can be loaded into the drug delivery device by the patient or that can be preloaded within the drug delivery device when provided to the patient. A sealed end of the container is pierced to couple the stored liquid drug to a needle conduit that is coupled to a needle insertion component that provides access to the patient. A drive system of the drug delivery device can expel the liquid drug from the cartridge to the patient through the needle conduit. The drive system can be controlled to provide the liquid drug to the patient in a single dose or over multiple doses.
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Citations
14 Claims
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1. A drug delivery device for delivering a liquid drug to a patient over two or more doses, comprising:
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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, and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification