METHOD AND APPARATUS FOR DERMATOLOGICAL TREATMENT

摘要

Exemplary methods and devices can be provided for fractional resurfacing of skin that include formation of a plurality of small holes, e.g., having widths less than about 1 mm or 0.5 mm, using one or more pulses of ablative electromagnetic radiation (EMR), e.g., optical energy. One or more pulses of substantially non-ablative can then be directed into the ablated holes to coagulate tissue therein, followed by at least one further ablative pulse of EMR to ablate and remove some of the coagulated tissue. Optionally, one or more further pulses of non-ablative EMR can then be directed into the hole to reduce the hole depth. Such procedures and device can provide reduced healing times and/or enhanced rejuvenation effects.

主权项

1. An apparatus for fractional resurfacing of skin tissue, comprising:
at least one electromagnetic radiation source arrangement; an optical arrangement; and a control arrangement, wherein the control arrangement is configured to control the optical arrangement and the at least one source arrangement to generate and direct at least one first pulse of electromagnetic radiation, at least one second pulse of electromagnetic radiation, and at least one third pulse of electromagnetic radiation onto at least one single location on the skin tissue, wherein each of the first, second and third pulses has a beam width that is less than about 1 mm, wherein the control arrangement is configured to control properties of: i. the at least one first pulse to ablate at least one portion of the skin tissue to form a hole therein, ii. the at least one second pulse to coagulate tissue within the hole, and iii. the at least one third pulse to ablate at least one portion of the coagulated tissue.