Applanation lens and method for ophthalmic surgical applications
US6899707B2 · kind B2 · utility
74Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2001 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Jun 29, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00846
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved applanation lens and method for use in an interface between a patient's eye and a surgical laser system does not discolor or lose light transmittance when subjected to gamma radiation. The improved applanation lens has an applanation surface configured to contact the eye upon application of a pressure. The lens is formed of high purity silicon dioxide (SiO2) with purity great enough to resist discoloration upon prolonged irradiation by high-energy radiation such as UV, x-rays, gamma rays or neutrons, and is preferably a fused silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.