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    • 9. 发明申请
    • Dermal and Transdermal Cryogenic Microprobe Systems and Methods
    • 皮肤和透皮低温微探针系统和方法
    • US20080154254A1
    • 2008-06-26
    • US11614887
    • 2006-12-21
    • Keith BurgerRonald WilliamsLisa Elkins
    • Keith BurgerRonald WilliamsLisa Elkins
    • A61B18/02
    • A61B18/02A61B2017/00747A61B2018/00452A61B2018/0262A61B2018/0293
    • Medical devices, systems, and methods optionally treat dermatological and/or cosmetic defects, and/or a wide range of additional target tissues. Embodiments apply cooling with at least one small, tissue-penetrating probe, the probe often comprising a needle having a size suitable for inserting through an exposed surface of the skin of a patient without leaving a visible scar. Treatment may be applied along most or all of the insertable length of an elongate needle, optionally by introducing cryogenic cooling fluid into the needle lumen through a small, tightly-toleranced lumen of a fused silica fluid supply tube, with the supply tube lumen often metering the cooling fluid. Treatment temperature and/or time control may be enhanced using a simple pressure relief valve coupled to the needle lumen via a limited total exhaust volume space.
    • 医疗装置,系统和方法可任选地治疗皮肤病和/或美容缺陷,和/或广泛的其它靶组织。 实施例用至少一个小的组织穿透探针进行冷却,所述探针通常包括具有适合于穿过患者皮肤的暴露表面插入的尺寸的针而不留下可见的瘢痕。 治疗可以沿着细长针的大部分或全部可插入长度施加,任选地通过将低温冷却流体通过熔融二氧化硅流体供应管的小的,紧密公差的管腔引入针内腔,供应管内腔经常计量 冷却液。 可以通过经由有限的总排气量空间耦合到针内腔的简单的压力释放阀来增强治疗温度和/或时间控制。