Trocar with retention cannula
US9232963B2 · kind B2 · utility
3Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/349
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A trocar comprises a retention cannula comprising an inverted or incised retention pattern disposed thereon. Embodiments of the incised cannula exhibit reduced tissue trauma compared with screw-threaded cannula, improved fixation and/or retention compared with an unthreaded cannula, and good sealing between the cannula and the incision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.