Needle hub with pressure interlock for drug delivery device
US12133975B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2022 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Dec 26, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1587
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle hub for a drug delivery device includes a needle holder and a needle attached to the needle holder, a needle actuation assembly configured to move the needle holder from a retracted position, to an insertion position, and back to the retracted position, and a pressure interlock comprising an inlet configured to be in fluid communication with a fluid source, an outlet in fluid communication with the needle, and a lock member. The lock member having a first position where the lock member prevents actuation of the needle actuation assembly and a second position where the lock member allows actuation of the needle actuation assembly. The lock member is moved from the first position to the second position based on a pressure within the pressure interlock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.