Needle hub for drug delivery device
US12109403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2022 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Jul 22, 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 hub body, an activation button, a needle holder moveable relative to the hub body, a needle attached to the needle holder, a needle spring biasing the needle holder to a retracted position where the needle is positioned within the hub body, a cannula holder moveable relative to the hub body and the needle holder, a cannula attached to the cannula holder, with the cannula configured to be in fluid communication with a fluid source, and a cannula spring biasing the cannula holder to a retracted position. Movement of a portion of the hub body is configured to disengage a connection between the cannula holder and the hub body to allow the cannula holder to return to the retracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.