Catheter insertion device with improved flashback response
US11439794B2 · kind B2 · utility
1Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2020 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0102
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In various embodiments, an improved catheter insertion device is described that provides an improved flashback response and use for deep vein access. In various embodiments, the improved flashback response comprises two separate and distinct flash events, the first indicating insertion of a cannula in a blood vessel, and a second indicating insertion of a catheter in the blood vessel. The two flash responses are made possible by a combination of features provided on the cannula, such as including a view window in the cannula and a flat relief portion on the outer surface of the cannula at the distal opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.