Robust laser cutting methods for ophthalmic surgery
US11399981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2019 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Aug 12, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00897
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for performing ophthalmic laser surgery using a pulsed laser beam is provided. The method includes establishing an initial cutting pattern comprising a plurality of original photodisruption points, establishing an enhanced cutting pattern comprising a plurality of enhanced photodisruption points selected to decrease potential adverse effects due to patient movement and having increased density over a fixed area as compared with the plurality of original photodisruption points, and performing an ocular surgical procedure according to the enhanced cutting pattern Enhanced cutting patterns may include circular cuts around the periphery of a capsule, vertical side cuts for lens fragmentation, raster lamellar cuts, and grid lamellar cuts. Each photodisruption point in the initial cutting pattern and the enhanced cutting pattern comprises a laser target point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.