Introducer needle with notches for improved flashback
US10869993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2018 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1588
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An introducer needle may include a proximal end, a distal tip, and a needle lumen extending therebetween. The introducer needle may include a wall defining the needle lumen, a first notch formed through the wall, and a second notch formed through the wall. A catheter system may include a catheter adapter, a catheter extending distally from the distal end of the catheter adapter, a flash chamber coupled to the introducer needle, and the introducer needle, which may extend through the catheter. The first and second notches and the flash chamber may facilitate pressure-driven blood flow into the catheter for improved flashback and detection of transfixation when the catheter is primed prior to insertion into vasculature of a patient or otherwise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.