Method and means for exerting a phototoxic effect of visible light on microorganisms
US8240312B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Oct 13, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0662
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention discloses a selective and a non-selective method and means of treating microbial diseases in local infections. The novel method comprising the step of emitting a beam of a blue light towards the tissue to be treated, wherein the beam is having a wavelength from 400 to 550 nanometers and further wherein the temperature of said tissue is not exceeding about 42° C. along the procedure or immediately after it so that a selective phototoxic effect is exerted. A cost effective device for selectively or non-selectively exerting phototoxic effect by emitting a beam of blue light towards a tissue to be treated is also provided useful, especially for dental application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.