Systems and methods for needle and catheter advancement
US9782568B2 · kind B2 · utility
38Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2014 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Mar 9, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0687
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Intravenous access is achieved by introducing a catheter over an access needle which is initially present in the catheter. A tapered dilating element is positioned over the needle and provides a transition between the needle and a larger catheter lumen. The access needle is hollow and has a port which allows blood to flash back through a lumen of the catheter so that flashback can be observed on a catheter hub or the catheter itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.