Fluid delivery device needle retraction mechanisms, cartridges and expandable hydraulic fluid seals
US10376638B2 · kind B2 · utility
11Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2017 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Sep 6, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3128
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fluid delivery device includes an automatic needle retraction mechanism configured to automatically retract a delivery end of a needle into a housing. In one embodiment, the needle assembly is configured to automatically withdraw the delivery end of the needle into the housing upon an actuator moving from the first position to the second position. In one embodiment, the needle assembly is configured to automatically withdraw the delivery end of the needle into the housing upon decoupling a bottom surface of the housing from a skin surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.