Delay mechanism for a hydraulic medicament delivery device
By designing the actuation components of the drug delivery device and utilizing the combination of pins and gears, delayed drug delivery is achieved, solving the problem that the drug delivery device cannot automatically delay delivery. This enables reliable delivery of drugs within a predetermined time period, is suitable for disposable drug delivery devices, and reduces production costs.
CN122376914APending Publication Date: 2026-07-14MANNKIND CORP
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MANNKIND CORP
- Filing Date
- 2018-06-20
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
Existing drug delivery devices are unable to achieve delayed drug delivery and cannot automatically and reliably deliver drugs to users within a predetermined time period.
Method used
A drug delivery device was designed, including an actuation component. Through the cooperation of a pin, an adapter, and a gear, the position of the pin is switched. Combined with the movement of a bias element and a plunger, the drug is automatically delivered after a predetermined time.
Benefits of technology
It enables delayed drug delivery, ensuring that the drug is automatically delivered to the user within a selected time period. It is suitable for single-use drug delivery devices, reduces production costs, and supports the application of a variety of drugs.
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Figure CN122376914A_ABST
Abstract
The present invention relates to a delay mechanism for a hydraulic medicament delivery device. In particular, the present invention relates to a medicament delivery device that can include a medicament chamber configured to contain a medicament; a plunger configured to move relative to the medicament chamber to expel the medicament from the medicament chamber; a latch configured to move from a first latch position, wherein the latch prevents movement of the plunger to a second latch position, wherein the latch allows movement of the plunger; an actuation assembly configured to move the latch from the first latch position to the second latch position; and a needle coupled to the medicament chamber. The medicament flows from the medicament chamber through the needle to a user. The actuation assembly can be configured to automatically move the latch after a predetermined time delay.
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