Patent ID: 8932278
Filing Date: 2015-01-13
Classification: A61B,H01S

Abstract:
1. A laser skin treatment process, comprising the steps of: A) cooling a surface region of the skin to produce a cooled skin surface region, B) illuminating at least a portion of the cooled skin surface region, for a first time period of 900 microseconds with at least one preheat laser beam with sufficient optical energy to heat a first skin region below the cooled skin surface region to a first temperature-time profile that is close to but below a temperature-time profile that would cause tissue damage, said first region so heated with said first temperature-time profile defining a thermal cavity; and C) illuminating a sub-region of skin within said thermal cavity for a second time period of 0.2 microsecond with a plurality of laser beams, all of which are directed at the same time to the same sub-region of skin and adapted to apply a sufficient quantity of additional optical energy to said sub-region of skin to produce mechanical damage via ablation or disruption to skin tissue within the sub-region with no significant damage outside the sub-region, said additional quantity of optical energy in said sub-region defining an energy droplet; wherein said tissue damage in said sub-region stimulates a healing process that subsequently extends beyond the region damaged to produce rejuvenated skin tissue.