Safety intravenous catheter with friction-based retention and disabling feature
US9827400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Dec 10, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0693
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter and introducer needle assembly, including a flexible catheter and a catheter hub having an uninterrupted outer surface portion, a Luer-connecting feature, and a disabling feature. The assembly includes an introducer needle disposed in the catheter, a needle shield having a resilient clip adapted to flex between first and second positions in a plane perpendicular to the introducer needle. The resilient clip includes a cantilevered arm with a pawl. In the resilient clip's first position, the cantilevered arm is flexed so that the pawl frictionally contacts the catheter hub's uninterrupted outer surface portion and frictionally retains the needle shield with the catheter hub, and the pawl is axially aligned with and spaced apart from the disabling feature. In the second position, the pawl no longer frictionally contacts the hub's uninterrupted outer surface, thereby permitting needle shield displacement relative to the catheter hub.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.