Ocular microcirculation examination and treatment apparatus
US6179421A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Oct 18, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Ophthalmologic examination apparatus comprises a light source, illumination means for directing light from the source along an illumination path and into the fundus of an eye of a patient, imaging means for directing fluorescence from the fundus of the patient along an imaging path to enable an image of the eye to be viewed, wherein the illumination and imaging paths are arranged as a confocal microscope adapted to focus on the fundus of the eye. A method of diagnosis of disease in an eye of a patient comprises providing in the ocular circulation of the patient: a first dye which fluoresces in response to illumination at a first predetermined wavelength; and a second dye which fluoresces in response to illumination at a second predetermined wavelength; wherein the first and second dyes fluoresce at different wavelengths; illuminating the fundus of the patient so as to excite the first dye at the first predetermined wavelength, and viewing an image of the eye by viewing fluorescence from the first dye; and subsequently illuminating the fundus of the patient so as to excite the second dye at the second predetermined wavelength, and viewing an image of the eye by viewing fluorescence …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.