Flooded liquefaction hand piece engine
US8568396B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Jul 14, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/046
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In various embodiments, an ophthalmic handpiece may include a handpiece body with a pulse chamber and flooded engine compartment configured to receive fluid from a surgical console through a fluid inlet port. Heated pulses from the pulse chamber and cooler fluid from the flooded engine compartment may flow through a tip into the eye. In some embodiments, the tip may be a dual lumen tip that keeps the flows from the pulse chamber and flooded engine compartment separate until they exit the tip. In some embodiments, a tip, coupled to a merging chamber where the flows may merge prior to the tip, may be a single lumen tip that directs the heated pulses and irrigation fluid simultaneously to a lens to liquefy the lens for removal from the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.