Surgical cannula and trocar system and method of using the same
US5380288A · kind A · utility
174Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1993 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Mar 30, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/349
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved surgical cannula and trocar system for use in laparoscopic surgery. The system includes a novel surgical cannula including shield means for protecting operating room personnel from accidental contact with the trocar's sharp tip. The surgical cannula also includes improved sealing means for reliably preventing fluids from passing through the cannula both when an instrument extends through the cannula and no instrument extends through the cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.