Drug delivery device having a needle shield with visual feedback

EP4757863A2Pending Publication Date: 2026-06-17AMGEN INC
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
AMGEN INC
Filing Date
2024-08-05
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Existing drug delivery devices require users to apply force to retract a needle guard, making it difficult for users to know when to stop or maintain the force for proper needle insertion and dose administration.

Method used

A drug delivery device with a needle shield that includes a first and second annular portion, where the second annular portion provides visual feedback through complementary ramped or stepped surfaces to indicate when to stop applying force and maintain it for proper insertion.

Benefits of technology

The device ensures proper needle insertion and dose administration by providing clear visual feedback to the user, reducing the complexity and mechanical requirements of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure US2024040953_13022025_PF_FP_ABST
    Figure US2024040953_13022025_PF_FP_ABST
Patent Text Reader

Abstract

A drug delivery device includes a housing, a drug storage container, a plunger, and a guard. The housing has an opening, and the guard is disposed adjacent the opening and moveable relative to the housing between an extended position and a retracted position. The guard includes a first annular portion and a second annular portion disposed at a distal end of the first annular portion, and the second annular portion has an outer diameter greater than an outer diameter of the first annular portion. The second annular portion is positioned a first distance from a distal end of the housing when the guard is in the extended position and the second annular portion is positioned a second distance from the distal end of the housing when the guard is in the retracted position. The second distance is smaller than the first distance.
Need to check novelty before this filing date? Find Prior Art