Pressure relief valve for drug delivery device
Summary
USPTO granted Amgen Inc. Patent US12594378B2 for a pressure relief valve mechanism in drug delivery devices. The patent covers a housing with a pressure chamber, container for drug storage, activation mechanism, and relief mechanism that releases pressurized drive fluid upon predetermined conditions. The 9-claim patent was filed July 16, 2020.
What changed
USPTO issued Patent US12594378B2 to Amgen Inc. for a drug delivery device featuring a pressure relief valve mechanism. The device includes a housing, pressure chamber with vent, drug container, activation mechanism, and relief mechanism that opens the vent to release drive fluid when predetermined conditions are met.
Pharmaceutical and medical device companies developing pressure-based drug delivery systems should conduct freedom-to-operate analyses to assess potential licensing requirements or design-around needs. Competitors in the auto-injector and wearable drug delivery markets may face increased IP scrutiny.
What to do next
- Monitor patent portfolio for freedom-to-operate implications
- Review competitor drug delivery devices for potential infringement
Archived snapshot
Apr 8, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Pressure relief valve for drug delivery device
Grant US12594378B2 Kind: B2 Apr 07, 2026
Assignee
AMGEN INC.
Inventors
Mehran Mojarrad, Ali Nekouzadeh, Scott R. Gibson, Sheldon Moberg, Paul Daniel Faucher
Abstract
A drug delivery device includes a housing releasably coupled with a patient, a pressure chamber disposed in the housing and including a vent, a container at least partially disposed in the pressure chamber for storing a drug connectable in fluid communication with a fluid conduit, an activation mechanism, and a relief mechanism. The activation mechanism releases a pressurized drive fluid into the pressure chamber for expelling the drug from the container into the fluid conduit. The relief mechanism is operably coupled to the fluid conduit and is adapted to open the vent to release the drive fluid from the pressure chamber in response to a predetermined condition.
CPC Classifications
A61M 5/14526 A61M 5/14248 A61M 5/14593 A61M 2005/14252 A61M 2005/247 A61M 2005/2474 A61M 5/14244 A61M 5/2046 A61M 5/2053 A61M 2205/3337
Filing Date
2020-07-16
Application No.
17626667
Claims
9
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