Serres P, Gaignebet J, Hattat J L, Compain P, Vire O, Despres S
Ann Chir Plast Esthet. 1991;36(3):235-41.
The originality of tattoo destruction by ruby laser is to selectively treat the tattooed areas without injuring the surrounding normal cells, in order to obtain better healing. Therefore, we selected a red laser (ruby, emitting at 694.3 nm), with very short flashes (100 ns with self Q switched ruby laser). Ruby laser spots of about 1 cm diameter are delivered to on the area to be treated. As the black particles of the tattoo absorb more laser energy than the surrounding pale-pink skin (140 Mw/cm2, i.e. 14 j/cm2), we can obtain quite localized destruction and better healing. The beam is focussed on one point of the tattoo with a sighting neon-helium laser. In view of the very short impact, the energy absorbed by the pigmented particles diffuses minimally to adjacent tissues. After the crust falls, carrying away some tattoo pigment on its deeper surface, a pale-pink scar forms, then gradually fades in several months. With thick tattoos, it is necessary to proceed in layers and to plan a course of several treatments about one month apart. Compared with the other methods of tattoo removal (dermabrasion, salt, CO2 laser), ruby laser gives the best cosmetic results, even in keloid prone areas.
红宝石激光去除纹身的独特之处在于能够选择性地治疗纹身部位，而不损伤周围正常细胞，从而实现更好的愈合效果。因此，我们选用了红色激光（红宝石激光，波长694.3nm），其脉冲持续时间极短（自调Q红宝石激光为100纳秒）。将直径约1厘米的红宝石激光光斑照射在待治疗区域。由于纹身的黑色颗粒比周围淡粉色皮肤吸收更多的激光能量（140兆瓦/平方厘米，即14焦耳/平方厘米），我们能够实现相当局限的组织破坏并获得更好的愈合效果。通过瞄准氖氦激光将光束聚焦在纹身的一个点上。鉴于作用时间极短，色素颗粒吸收的能量极少扩散到相邻组织。结痂脱落后，其深层表面会带走一些纹身色素，随后形成淡粉色疤痕，几个月后会逐渐消退。对于较厚的纹身，需要分层进行治疗，并安排大约相隔一个月的多次治疗疗程。与其他去除纹身的方法（磨皮、盐水、二氧化碳激光）相比，即使在瘢痕疙瘩易发区域，红宝石激光也能带来最佳的美容效果。
