Skin surface peeling process using laser
US5423803A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1994 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Jun 8, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for the removal of superficial epidermal skin cells in the human skin. A contaminant having a high absorption at at least one wavelength of light is topically applied to the surface of the skin. Some of the contaminant is forced to infiltrate into spaces between the superficial epidermal cells. The skin section is illuminated with short laser pulses at the above wavelength, with at least one of the pulses having sufficient energy to cause some of the particles to explode tearing off the superficial epidermal skin cells. In a preferred embodiment, the contaminant includes 1 micron graphite particles and the laser used is a Nd:YAG laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.