Temperature-sensitive cannula
US7513891B2 · kind B2 · utility
2Cited by
15References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2005 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jul 15, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cannula, for introduction into a body tissue, the cannula flexible after introduction, and rigid below a critical temperature and flexible above the critical temperature. In a method for the introduction of the cannula into the body tissue, the cannula is cooled to a temperature below the critical temperature and introduced into the body tissue. After being introduced, the cannula is brought to a temperature above the critical temperature by warming and thus becomes flexible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.