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    • 4. 发明申请
    • CRYOGENIC BALLOON ABLATION INSTRUMENTS AND SYSTEMS
    • 低温气泡吸收仪器和系统
    • US20080312644A1
    • 2008-12-18
    • US11763372
    • 2007-06-14
    • Michael FourkasSteven WalakKurt GeitzKristine Tatsutani
    • Michael FourkasSteven WalakKurt GeitzKristine Tatsutani
    • A61B18/02
    • A61B18/02A61B90/39A61B2017/00084A61B2017/22051A61B2018/0022A61B2018/0212A61B2090/3937
    • Cryogenic tissue ablation instruments for treating body tissue include an elongate flexible body with a proximal supply port for coupling with a pressurized coolant (e.g., liquid N2O), a supply lumen in fluid communication with the proximal supply port, and an expandable cryogenic balloon carried on a distal portion of the elongate body, the balloon having a wall defining an interior of the balloon. A dispersion member coupled to or otherwise formed out of a distal end portion of the elongate body has an interior lumen in fluid communication with or otherwise comprising a portion of the supply lumen, the dispersion member having one or more coolant dispersion apertures in fluid communication with the balloon interior and sized and located with respect to the balloon wall such that a pressurized flowable coolant in the supply lumen will enter the balloon interior through the one or more apertures in the form of a liquid spray that contacts and provides (through rapid evaporation) substantially uniform cooling of an interior wall surface of a treatment region of the balloon.
    • 用于治疗身体组织的低温组织消融装置包括细长的柔性体,其具有用于与加压的冷却剂(例如,液体N2O)结合的近侧供应口,与近侧供应口流体连通的供应管腔和承载在其上的可膨胀低温球囊 细长体的远端部分,气囊具有限定球囊内部的壁。 与细长体的远端部分连接或以其它方式形成的分散体具有与供应内腔流体连通或以其他方式包含供应内腔的一部分的内腔,该分散体具有一个或多个冷却剂分散孔,其与 气囊内部并且相对于球囊壁定尺寸和定位,使得供应内腔中的加压可流动的冷却剂将通过接触并提供(通过快速蒸发)的液体喷雾形式的一个或多个孔进入气囊内部, 对气囊的治疗区域的内壁表面进行大致均匀的冷却。
    • 10. 发明授权
    • Cryotherapy methods for treating vessel dissections and side branch occlusion
    • 用于治疗血管解剖和侧支闭塞的冷冻治疗方法
    • US07862557B2
    • 2011-01-04
    • US10867986
    • 2004-06-14
    • James JoyeKristine Tatsutani
    • James JoyeKristine Tatsutani
    • A61B18/02
    • A61B18/02A61B2017/22062A61B2018/00023A61B2018/0022A61B2018/0212A61B2018/0262
    • The present invention provides cryotherapy treatment of dissections in a blood vessel of a patient. The present invention further provides cryotherapy treatment of side branch occlusion in a bifurcated blood vessel. One method for treating potential or existing dissections in a blood vessel comprises cooling the blood vessel to a temperature and for a time sufficient to remodel the blood vessel such that dissections of the blood vessel are reduced. Another method for treating side branch occlusion in a bifurcated blood vessel, the bifurcated blood vessel having a side branch and a main branch, the main branch having plaque disposed thereon, comprises cooling an inner surface of the main branch to a temperature and for a time sufficient to inhibit plaque shift from the main branch into the side branch.
    • 本发明提供对患者血管中的解剖的冷冻治疗。 本发明还提供了在分叉血管中的侧分支闭塞的冷冻治疗。 用于治疗血管中的潜在或现有解剖的一种方法包括将血管冷却到足以改造血管的温度和时间,使得血管的解剖减小。 用于治疗分叉血管中的侧分支闭塞的另一种方法,具有侧分支和主分支的分叉血管,其中设置有斑块的主分支包括将主支路的内表面冷却至一段温度和一段时间 足以抑制从主分支到侧枝的斑块偏移。