Cannula assembly
US7156836B2 · kind B2 · utility
12Cited by
29References
20Claims
0Family size
Inventor
Key dates
| Filing date | Apr 19, 2001 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Apr 19, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A double cannula assembly for medical or veterinary use includes a first cannula (10) for insertion into a blood vessel in a conventional manner. This first cannula is an outer cannula and a second or inner cannula (12) is subsequently inserted through said first cannula to extend beyond the distal tip of the outer cannula. The inner cannula and outer cannula are formed to prevent blood entering between the engaging surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.