Vascular access device
US7025746B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 2002 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Jun 5, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0687
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vascular access system comprises a needle having a distal tip and a proximal fitting section and a dilator having a solid distal section connected to a solid proximal section and an annular recess therebetween, the dilator having a passageway so that the dilator is coaxially positioned around the needle. The needle has at least one opening positioned proximal to its distal tip so that, when the distal end of the needle enters a blood vessel, blood enters the annular recess to show the operator that access has been achieved. Optionally, a sheath having a distal tip, a proximal fitting section, and a lumen sufficient to coaxially fit over the dilator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.