Method and apparatus for limiting revascularization to viable tissue
    1.
    发明授权
    Method and apparatus for limiting revascularization to viable tissue 失效
    用于限制血管再生成活组织的方法和装置

    公开(公告)号:US06733516B2

    公开(公告)日:2004-05-11

    申请号:US09765209

    申请日:2001-01-17

    IPC分类号: A61B1818

    摘要: A method and apparatus for limiting the application of ablation energy to viable myocardial tissue. An ablation energy generator produces a test signal that is applied to the heart muscle. The response of the heart muscle to the test signal is determined and used to analyze the viability of the heart tissue. If the heart muscle is viable, a higher powered ablation pulse may be delivered. If the tissue is not viable, no ablation energy is delivered. In one embodiment of the invention, the test signal is a low voltage, high frequency signal and the impedance of the tissue in response to the test signal is detected to determine tissue viability.

    摘要翻译: 一种用于限制消融能量应用于活的心肌组织的方法和装置。 消融能量发生器产生施加到心脏肌肉的测试信号。 确定心肌对测试信号的反应并用于分析心脏组织的活力。 如果心肌是可行的,则可以递送更高功率的消融脉冲。 如果组织不可行,则不会传递消融能量。 在本发明的一个实施例中,测试信号是低电压,高频信号,并且检测响应于测试信号的组织的阻抗以确定组织存活力。