Wrinkle removal
US5983900A · kind A · utility
77Cited by
8References
9Claims
0Family size
Inventors
Key dates
| Filing date | Aug 28, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Aug 28, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Wrinkles are cosmetically removed from a superficial area of mammalian skin tissue having an epidermal layer, a basal layer, and a dermal layer, by irradiating the dermal layer through the basal layer, the irradiation being selected to be absorbed by a chromophore in the dermal layer such that collagen present in the dermal layer is heated, while the basal layer remains intact so as to substantially inhibit contact of the dermal layer with ambient air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.