US Patent

US8920383 — Dose mechanism for an injection device for limiting a dose setting corresponding to the amount of medicament left

Formulation · Assigned to Novo Nordisk AS · Expires 2026-07-17 · 0y remaining

Vulnerability score 51/100 Moderate — design-around opportunities exist

What this patent protects

This patent protects a mechanism for preventing an injection device from setting a dose that exceeds the amount of medicament left in the device.

USPTO Abstract

A mechanism for preventing setting of a dose, which exceeds the amount of a medicament in a reservoir in an injection device. The device comprises a threaded piston rod, a limiter and a driver. The three elements are arranged such that during dose setting, the limiter is moved towards an end-of-contend position, wherein dose setting is limited. The invention comprises an accumulative and a non-accumulative embodiment. The invention further relates to a mechanism for prevention ejection of a dose exceeding the set dose.

Drugs covered by this patent

Patent Metadata

Patent number
US8920383
Jurisdiction
US
Classification
Formulation
Expires
2026-07-17
Drug substance claim
No
Drug product claim
Yes
Assignee
Novo Nordisk AS
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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