Two-pivot scanning for laser eye surgery
US6488676B1 · kind B1 · utility
9Cited by
20References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00897
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Laser eye surgery systems, methods, and devices makes use of a two-pivot scanning system for laterally deflecting the laser beam across the corneal surface to provide X-Y scanning. An imaging lens pivots about two eccentric axes extending along, but disposed beyond the laser beam. As the lens pivots, the beam will follow a substantially arc-shaped path. The eccentric axes are offset about the laser beam axis by about 90°, and the system controller can compensate for the arc-shaped path deflections by adjusting the angular position of the imaging lens about complementary stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.