Jet impingement cooling deviceHousing with surface directed to treatment regionAn optically transparent region that passes when electromagnetic radiation (EMR) from the source can be directed from the housing to the treatment regionAt least one opening on the surface of the housing;Avoiding interference with EMR directed to the treatment areaTo maintain the treatment area in a temperature range acceptable for therapyIncludes at least one opening through which the fluid flow can be directed to the treatment region.Diagram噴流衝突冷却装置は、処置領域に向けられる表面を有するハウジングと、ソースからの電磁放射(EMR)をハウジングから処置領域へと向けることができる際に通る光学的に透明な領域と、ハウジングの表面上の少なくとも1つの開口部であって、処置領域に向けられるEMRとの干渉を回避しながら、治療上許容可能な温度範囲で処置領域を維持するために、流体流を処置領域へと向けることができる際に通る少なくとも1つの開口部とを含む。【選択図】図1A