Handpiece for producing highly collimated laser beam for dermatological procedures
US5558666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1994 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Jan 14, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/2025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A handpiece for use in delivering the output beam of a laser to the surface of a patient's skin for performing a dermatological procedure. In a first and second embodiment of the present invention, the handpiece provides a highly collimated beam of a fixed, non-variable spot size which is largely insensitive to movement of the handpiece over a range of working positions. In a third embodiment the handpiece provides a highly collimated and well defined focused laser spot of variable size where for a selected spot size, the size is largely insensitive to movement of the handpiece over a range of working positions. In all of the embodiments, the highly collimated laser beam permits the surgeon performing the procedure to move the handpiece over a range of positions without significantly defocusing or altering the spot size of the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.