Method and system for scanning a laser beam for controlled distribution of laser dosage
US5474549A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1993 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Feb 18, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/20359
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for distributing an output beam from a laser system on a body which provides for a uniform fluence level throughout an entire treatment region. A first structure receives the laser beam and aims it along a propagation axis. A scanner scans the propagation axis of the laser beam at a controlled scan velocity, so that the laser beam essentially continuously scans a treatment pattern on the body. The treatment pattern can consist of an essentially straight line, or a ring, or other pattern which can be easily fitted together with other patterns to fill in a treatment area. The method includes the steps of: PA1 supplying a laser beam, PA1 directing a laser beam along a propagation axis to the body, and PA1 scanning the propagation axis of the laser beam at a controlled scanned velocity, so that the laser beam essentially continuously scans the treatment pattern on the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.