Photodynamic therapy including light pretreatment
US9033962B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2011 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Nov 13, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0663
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of photodynamic therapy is described that includes administering a therapeutically effective amount of a photosensitizer to an area of tissue such as the skin of a subject, delivering a first photoirradiation with light having a wavelength suitable to activate the photosensitizer to the area of skin, allowing a sufficient interval of time to pass for an effective amount of the photosensitizer to penetrate the tissue, and then delivering a second photoirradiation with light having a wavelength suitable to activate the photosensitizer to provide a therapeutic effect. Use of multiple photoirradiations increases the speed with which the photosensitizer can penetrate the tissue to reach the area where the source of the disease is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.