Medicament delivery device and actuation mechanism for a drug delivery device
US11918786B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Jan 6, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Described is an actuation mechanism for a medicament delivery device having a needle with a distal tip. The actuation mechanism comprises an outer sleeve telescopically relative to the delivery device and an inner sleeve telescopically arranged relative to the outer sleeve. The outer sleeve is axially translatable relative to the delivery device, and the inner sleeve is axially translatable relative to the outer sleeve. In a first state, the inner sleeve protrudes distally from the outer sleeve and the outer sleeve protrudes distally from the delivery device. In a second state, the inner sleeve is contained within the outer sleeve. Movement of the outer sleeve proximally relative to the delivery device in the second state initiates delivery of a medicament in the delivery device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.