Liquid venting surgical system and cassette
US6261283A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Aug 31, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3337
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical system having a cassette with an aspirant collection chamber and an aspiration vent line that draws fluid from the aspirant collection chamber. The pressure within the collection chamber is maintained near ambient so that when the aspiration vent line is open, fluid flows from the collection chamber and into the aspiration line. Such a system does not require a second source of irrigation fluid, minimizes pressure surges into the irrigation fluid line and does not affect the fluidic performance of the aspiration system. In addition, various vent pressures can be achieved by varying the vertical position of the reservoir relative to the aspiration line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.