Application of vacuum as a method and mechanism for controlling eye chamber stability
US7670330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Apr 7, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M3/0283
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for operating a surgical system including a control unit having a vacuum sensor and/or a flow rate sensor, the method including placing a handpiece in an operative relationship with an eye for a surgical procedure and thereafter supplying irrigation fluid to the handpiece while applying a vacuum to the handpiece to aspirate the irrigation fluid from the eye through the handpiece. During fluid aspiration, a vacuum level and/or flow rate is sensed which corresponds to an occlusion of the handpiece and from the sensed vacuum level and/or flow rate, a duration of the occlusion is determined. In response to the determined duration of occlusion, at least one of the handpiece parameters is varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.