Method and apparatus for the treatment of benign pigmented lesions
US7981111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2004 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Feb 25, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is an apparatus and method which employs an energy source, one or more switches, electronic control circuitry, and a surface that can be placed in contact with a region of a person's skin containing a benign pigmented lesion. Within the apparatus, electrical current is passed through a heating element that is thermally coupled to the surface so that this surface is heated rapidly and then is subsequently cooled rapidly. By judicious choice of the rate of heating, maximum temperatures achieved, and rate of cooling, thermal injury to the skin can be confined primarily to the epidermal region of the skin in contact with the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.