Ophthalmic laser treatment apparatus
US9724236B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Nov 14, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00897
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmic laser treatment apparatus, comprising: an emitted treatment laser beam; an emitted aiming beam; an irradiation unit including a zoom lens and a scanner for scanning in two dimensions, and being arranged to irradiate both beams to the eye; an irradiation pattern setting unit including a switch for setting an irradiation pattern in which a plurality of spots is arranged; and a controller for controlling the aiming beam based on the set pattern during aiming before irradiation of the treatment beam, the controller being configured to divide the spots in the set pattern into two or more groups and switch the positions of the spots of the aiming beam at a predetermined time interval in each group to irradiate the aiming beam so that the irradiation spots of the aiming beam in a group before switching and another group after switching are not recognized simultaneously by an operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.