Abstract: The invention describes a system and method for revitalizing aging skin using electromagnetic energy that is delivered using a plurality of needles that are capable of penetrating the skin to desired depths. A particular aspect of the invention is the capability to spare zones of tissue from thermal exposure. This sparing of tissue allows new tissue to be regenerated while the heat treatment can shrink the collagen and tighten the underlying structures. Additionally, the system is capable of delivering therapeutically beneficial substances either through the penetrating needles or through channels that have been created by the penetration of the needles.

Abstract: Methods and compositions are disclosed for improving the wound healing process and increasing collagen synthesis following laser induced thermal injury. The method comprises delivering prodrugs to a target site before the target site is injured and taking advantage of those enzymes that are physiologically-expressed to promote wound healing to convert the prodrugs to active drugs. The claimed invention has the advantage of the prodrugs being readily available to immediately participate in the wound healing process, but not have any negative side-effects of the active drug being present before injury occurs.

Abstract: Methods and devices for increasing revascularization in an ischemic heart and for reducing muscle mass or volume in congestive heart failure patients are described. The method includes using laser energy to create microchannels in the target tissue. The microchannels are separated from each other to maintain tissue that is untreated or undamaged by laser energy. Such undamaged tissue augments angiogenesis. The method also includes delivery of bioactive agents that are angiogenic. The apparatus simultaneously creates a plurality of microchannels that are separated from each other and thereby promote angiogenesis, revascularization and/or muscle reduction.