Device for eliminating parallax of stereo microscopes during refractive laser surgery
US6344039B1 · kind B1 · utility
4Cited by
16References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1997 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Mar 18, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00872
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for eliminating decentration error due to parallax during ophthalmic laser surgery comprises a stereo microscope having a first ocular and a second ocular and an objective lens for viewing a patient's eye, a laser for projecting a laser beam at a patient's eye during ophthalmic laser surgery; and structure for aligning the objective lens relative to the first ocular to center the laser beam with a patient's eye. The device for eliminating decentration error due to parallax also comprises prism positioned between either the first ocular and the objective lens or the objective lens and the laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.