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    • 9. 发明授权
    • Device and method for ablation of tissue
    • 组织消融的装置和方法
    • US6112123A
    • 2000-08-29
    • US123509
    • 1998-07-28
    • Brian S. KelleherCorbett StoneMichael Jones
    • Brian S. KelleherCorbett StoneMichael Jones
    • A61B18/00A61B18/12A61B18/14A61F7/12
    • A61B18/1492A61B18/1206A61B2018/00065A61B2018/00214A61B2018/00261A61B2018/00482A61B2018/00494A61B2018/00684A61B2018/00761A61B2018/00821A61B2018/00875A61B2018/00982A61B2018/1425A61B2018/1435A61B2018/1472
    • A device and method for performing electrolyte assisted tissue ablation of metaplasia in the esophagus includes a shaft with an expandable barrier which is deployable from the shaft's distal end. Also included in the device are an electrode and a temperature/impedance sensor which are each mounted on the shaft. Alternatively, the shaft may be a catheter formed with several lumens which are used independently for housing optical elements and for transferring fluid. In the operation of the device, the distal end of the shaft or catheter is placed in the esophagus proximal the cardia. The barrier is then deployed to the cardia and expanded to seal the esophagus from the stomach. The esophageal volume between the barrier and the catheter is partially flooded with a conducting medium and an electrode is deployed into the conducting medium. The sensor is also deployed into contact with the tissue to be ablated. Using open-loop control, or using temperature, impedance, or visual monitoring for closed-loop control, the metaplasia is ablated by passing radio frequency energy from the electrode and through the conducting medium for contact with the tissue being ablated.
    • 用于进行食道中化生物电解质辅助组织消融的装置和方法包括具有可从轴的远端展开的可扩张屏障的轴。 装置中还包括各自安装在轴上的电极和温度/阻抗传感器。 或者,轴可以是形成有多个腔的导管,其独立地用于容纳光学元件和用于传送流体。 在装置的操作中,将轴或导管的远端放置在食管近端的贲门。 然后将屏障部署到贲门并扩大以从胃部密封食道。 屏障和导管之间的食管体积部分地被导电介质淹没,并且将电极部署到导电介质中。 传感器也被部署成与要消融的组织接触。 使用开环控制或使用温度,阻抗或视觉监控进行闭环控制,通过从射线通过射频能量并通过导电介质与被消融的组织接触来消除化生。