Tunable diode laser system for photodynamic therapy
US6421361B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1999 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/4006
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A tunable medical laser diode system for activating PhotoDynamic Therapy (PDT) compounds is disclosed. A tunable medical laser diode system for activating PhotoDynamic Therapy (PDT) compounds and other moderate or low energy multiple wavelength applications is disclosed. Interchangeable diode laser cartridges are used. Each cartridge contains a diode laser, which consists of at least one diode or diode array or some combination thereof. Typically, each diode laser cartridge is tuned to a different wavelength. Multiple cartridges, however may be tuned to the same wavelength for some applications One or more cartridges are attached to the system base unit simultaneously. The cartridges may be powered in series or in tandem for different applications. Selectively powering these cartridges causes light to be emitted at a certain wavelength or wavelengths. Selection of cartridges is facilitated by a drug identification scanner which scans drug activation wavelength information into the system. The wavelength can then be changed by selecting different cartridge(s) with diodes operating at other wavelengths. Applicator fiber parameters are recognized by the system as are power output and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.