Laparoscopic smoke evacuation system
US5578000A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1995 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Jan 23, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laparoscopic smoke evacuation system for removing surgical smoke containing undesirable contaminants, including a trocar having a working channel adapted to provide access to an operative site and a stopcock communicating with the working channel. A source of vacuum is coupled through a fluid conduit to the stopcock to remove the smoke. Filtration is provided along the fluid conduit to remove the undesirable contaminants and the residual gas is exhausted to the room or the source of vacuum. A liquid collector can also be disposed along the fluid conduit together with valve means which is either mechanically or electrically operable to control application of suction to the trocar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.