Expandable cannula
US6312443A · kind A · utility
346Cited by
8References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable cannula having a plurality of wall surfaces, the wall surfaces being foldable together one over another such that the cannula assumes a first cross sectional area, and the wall surfaces being unfoldable such that the cannula assumes a second cross sectional area, wherein the first cross sectional area is smaller than the second cross sectional area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.