Medicine for clogging blood vessels of eye fundus
USRE39357E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2002 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
Classification
- Technology area (CPC —)General
Abstract
An apparatus for clogging blood vessels of an eye fundus includes an illuminating optical system (1) for illuminating an eye fundus of a subject, who has been given an injection of an infrared fluorescent agent, with infrared rays of light and exciting the infrared fluorescent agent so as to generate infrared fluorescence, a photographic optical system (2) for observing and photographing the eye fundus, and a projecting optical system (21) for projecting a laser beam of light having a specific wavelength onto the subject who has been also given an injection of a photosensitive substance which undergoes a photochemical change by the laser beam. In the apparatus, while a region which emits infrared fluorescence is being observed, the laser beam is projected onto the photosensitive substance so as to clog blood vessels of a diseased part in the depth of the eye fundus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.