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    • 3. 发明申请
    • STENT DELIVERY SYSTEM FOR DETECTING WALL APPOSITION OF THE STENT DURING DEPLOYMENT
    • 用于在部署期间检测墙壁的STENT传送系统
    • WO2011133282A1
    • 2011-10-27
    • PCT/US2011/029546
    • 2011-03-23
    • MEDTRONIC VASCULAR INC.MITCHELL, James
    • MITCHELL, James
    • A61F2/84
    • A61F2/958A61F2250/0001A61F2250/0096
    • A stent delivery and apposition detecting system (100) includes at least one electrode pair (132, 136) of dissimilar metals mounted on a balloon (108) of a balloon catheter (102). The electrode pair forms part of an electrochemical cell, and voltage and current generated from the electrochemical cell enables the system to detect when a stent mounted on the balloon achieves proper wall apposition. As the balloon is exposed to different environments, i.e., blood or tissue having different resistances, the electric potential of the electrochemical cell changes and an alert is generated by a feedback circuit to notify a user that the electrodes are in contact with tissue of the vessel wall. In one embodiment, the feedback circuit may be powered by the electrochemical cell. Multiple sets of electrode pairs may be mounted along the circumference and length of the balloon to detect differential contact between the deployed stent and the vessel wall.
    • 支架输送和并置检测系统(100)包括安装在球囊导管(102)的球囊(108)上的不同金属的至少一个电极对(132,136)。 电极对形成电化学电池的一部分,并且从电化学电池产生的电压和电流使得系统能够检测何时安装在气囊上的支架实现适当的壁连接。 当气囊暴露于不同的环境(即具有不同电阻的血液或组织)时,电化学电池的电位发生变化,并且由反馈电路产生警报以通知用户电极与血管的组织接触 壁。 在一个实施例中,反馈电路可以由电化学电池供电。 可以沿着球囊的圆周和长度安装多组电极对,以检测部署的支架和血管壁之间的不同接触。