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    Combination monophasic action potential/ablation catheter and high-performance filter system
    14.
    发明授权
    Combination monophasic action potential/ablation catheter and high-performance filter system 失效
    组合单相动作电位/消融导管和高性能过滤系统

    公开(公告)号：US5398683A

    公开(公告)日：1995-03-21

    申请号：US92762

    申请日：1993-07-16

    Applicant: Stuart D. Edwards ,  Michael R. Franz ,  Russel B. Thompson ,  Roger A. Stern

    Inventor： Stuart D. Edwards ,  Michael R. Franz ,  Russel B. Thompson ,  Roger A. Stern

    IPC: A61B5/0492 ,  A61B5/0402 ,  A61B5/042 ,  A61B5/0478 ,  A61B17/00 ,  A61B18/12 ,  A61B18/14 ,  A61N1/05 ,  A61B5/04

    CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B18/1492 ,  A61B5/0422 ,  A61N1/056 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2017/00473 ,  A61B2018/00107 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/0066 ,  A61B2018/00839 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1495 ,  A61B2018/1497 ,  A61B2018/162

    Abstract: A combination catheter for both detecting monophasic action potentials and ablating surface tissue in an in vivo heart of a patient is provided. The apparatus includes a catheter probe having a terminal tip portion and an electrode carried on the tip such that a portion of the tip electrode is exposed to ambient. A reference electrode is spaced along the tip from the first electrode for supplying a reference potential signal. An ablating electrode is located adjacent to but electrically insulated from both the tip and reference electrodes for providing electromagnetic energy to the tip. The electrodes are electrically connected to the proximal end of the catheter through individual conductors or wires that run through an insulated cable. An electronic filter is provided to permit the recording of MAPs during ablation without radiofrequency interference. The catheter may also include standard mapping and/or pacing electrodes. The catheter may further include a steering mechanism for positioning the catheter at various treatment sites in the heart, and a structure for holding the tip electrode in substantially perpendicular contact with heart tissue with a positive pressure, and for spacing the reference electrode from the heart tissue.

    Abstract translation: 提供了用于检测患者的体内心脏中的单相动作电位和消融表面组织的组合导管。 该装置包括导管探针，其具有端子末端部分和在尖端上承载的电极，使得尖端电极的一部分暴露于环境中。 参考电极沿着尖端与第一电极间隔开，以提供参考电位信号。 烧蚀电极位于与尖端和参考电极相邻但电绝缘的位置，用于向尖端提供电磁能。 电极通过穿过绝缘电缆的各个导体或电线电连接到导管的近端。 提供电子滤波器以允许在消融期间MAP的记录而没有射频干扰。 导管还可以包括标准贴图和/或起搏电极。 导管还可以包括用于将导管定位在心脏中的各种治疗部位的转向机构，以及用于将尖端电极与正常压力基本上垂直接触心脏组织并将参考电极与心脏组织间隔开的结构 。

    Control system and process for application of energy to airway walls and other mediums
    19.
    发明授权
    Control system and process for application of energy to airway walls and other mediums 有权
    控制系统和能量应用于气道壁和其他介质的过程

    公开(公告)号：US07854734B2

    公开(公告)日：2010-12-21

    申请号：US11458074

    申请日：2006-07-17

    Applicant: Michael Biggs ,  Roger A. Stern ,  Christopher J. Danek

    Inventor： Michael Biggs ,  Roger A. Stern ,  Christopher J. Danek

    IPC: A61B18/14 ,  A61B18/10

    CPC classification number: A61N1/06 ,  A61B18/14 ,  A61B2018/00541 ,  A61N1/40

    Abstract: The present invention includes a system for delivering energy to an airway wall of a lung comprising an energy delivering apparatus and a PID controller having one or more variable gain factors which are rest after energy deliver has begun. The energy delivering apparatus may include a flexible elongated member and a distal expandable basket having at least one electrode for transferring energy to the airway wall and at least one temperature sensor for measuring temperature. The PID controller determines a new power set point base on an error between a preset temperature and the measured temperature. The algorithm can be Pi+1=Pi+G(αei+βei−1+γei−2) where α, β and γ are preset values and α is from 1 to 2; β is from −1 to −2; and γ is from −0.5 to 0-5. In another variation, the controller is configured to shut down if various measured parameters are exceeded such as, for example, energy, impedance, temperature, temperature differences, activation time and combinations thereof. Methods for treating a target medium using a PID algorithm are also provided.

    Abstract translation: 本发明包括一种用于向肺气道壁输送能量的系统，包括能量输送装置和具有一个或多个可变增益因子的PID控制器，所述可变增益因子在能量传递开始之后休息。 能量输送装置可以包括柔性细长构件和远端可膨胀篮，其具有用于将能量传递到气道壁的至少一个电极和用于测量温度的至少一个温度传感器。 PID控制器根据预设温度和测量温度之间的误差确定新的功率设定点。 该算法可以是Pi + 1 = Pi + G（αei+＆bgr; ei-1 +γei-2）其中α，＆bgr; γ为预设值，α为1〜2; ＆bgr 从-1到-2; γ为-0.5〜0-5。 在另一变型中，控制器被配置为如果超过各种测量参数，例如能量，阻抗，温度，温差，激活时间及其组合，则关闭。 还提供了使用PID算法处理目标介质的方法。

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