Surgical cannula with passive priming and methods for using surgical cannulas
US10687848B2 · kind B2 · utility
1Cited by
26References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2018 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Mar 7, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/349
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein are multiple cannulas defining a lumen sized and dimensioned to receive one or more medical instruments, an inflatable outer membrane attached to an outer surface of the cannula, and at least one activator that reversibly activates the cannulas to push a fluid contained in the cannulas into the outer membrane to fill or pressurize the outer membrane. Also disclosed are methods for operating these cannulas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.