Long-term drug storage device and method
The drug storage device uses an absorbent to maintain humidity within a sealed container, addressing needle clogging issues in pre-filled syringes and auto-injectors by keeping the relative humidity above 60% for extended periods, ensuring safe and effective drug delivery.
JP7869202B2Active Publication Date: 2026-06-02AMGEN INC
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- AMGEN INC
- Filing Date
- 2021-09-03
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Pre-filled drug delivery devices, such as pre-filled syringes and auto-injectors, can dry out during long-term storage, leading to needle clogging and difficulty in administration due to increased force requirements for plunger operation.
Method used
A drug storage device comprising a container with an absorbent material that maintains high relative humidity through moisture absorption, combined with a sealing member to form a gas-impermeable seal, ensuring the device remains sterile and functional over extended periods.
Benefits of technology
The device prevents drug drying and needle clogging, maintaining functionality and ease of use by keeping the relative humidity above 60% for several months to years, ensuring safe and pain-free administration.
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Smart Images
Figure 0007869202000001 
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Abstract
An apparatus for storing a drug delivery device, the apparatus comprising: a container defining a storage cavity having an opening, the storage cavity configured to accommodate a syringe pre-filled with a drug; an absorbent disposed within the cavity, the absorbent being at least partially hydrated with a liquid solution; and a sealing member at least selectively connected to the cavity to form a seal that is at least substantially gas-impermeable.
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