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    Cryogenic catheter
    31.
    发明授权
    Cryogenic catheter 失效
    低温导管

    公开(公告)号：US5281215A

    公开(公告)日：1994-01-25

    申请号：US898142

    申请日：1992-06-15

    申请人： Fredric L. Milder

    发明人： Fredric L. Milder

    IPC分类号： A61B18/12 ,  A61B17/00 ,  A61B18/00 ,  A61B18/02 ,  A61B18/14 ,  A61B18/20 ,  A61B18/24 ,  A61B18/28 ,  A61F7/00 ,  A61M25/01 ,  A61B17/36

    CPC分类号： A61M25/0158 ,  A61B18/02 ,  A61B18/1492 ,  A61B18/14 ,  A61B18/20 ,  A61B18/24 ,  A61B18/28 ,  A61B2017/00017 ,  A61B2017/00022 ,  A61B2017/00243 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2018/00011 ,  A61B2018/00023 ,  A61B2018/00077 ,  A61B2018/00095 ,  A61B2018/00357 ,  A61B2018/00577 ,  A61B2018/00815 ,  A61B2018/00821 ,  A61B2018/00839 ,  A61B2018/0212 ,  A61B2018/0275 ,  A61B2018/0281 ,  A61B2018/1253 ,  A61B2218/002 ,  A61B2218/003 ,  A61F2007/0056

    摘要： The invention provides a catheter for ice mapping and ablation and a method of ablation using the catheter. The catheter includes at least two lumens for circulating a refrigerating fluid adjacent an ablation device located at the end of a catheter. The refrigerated ablation device is used to chill a localized region of myocardial tissue, thereby permitting the resulting change in electrical activity to be determined. In response to the test results, the ablation device may be used to make a lesion in the myocardial tissue to correct a cardiac arrhythmia. In one embodiment, the ablation device is an electrode which uses radio frequency energy to ablate the myocardial tissue. Alternatively, the ablation device is an electrode adapted for direct current ablation. In another embodiment, the electrode is replaced with an optical fiber in communication with a laser which uses the laser's light energy to ablate tissue. Yet another embodiment is a cryogenic catheter, useful for cooling tissue for other applications, for use as combined or separate mapping and ablation devices, or for use with the ice mapping and ablation means of the present invention. The embodiments may include provisions for steering the catheter and for stabilizing the ablation device at the proposed lesion site.

    摘要翻译： 本发明提供一种用于冰图和消融的导管以及使用该导管消融的方法。 导管包括至少两个流体，用于循环位于导管端部处的消融装置附近的冷冻流体。 冷冻消融装置用于冷冻心肌组织的局部区域，从而允许确定所导致的电活动变化。 响应于测试结果，消融装置可用于在心肌组织中形成损伤以矫正心律失常。 在一个实施例中，消融装置是使用射频能量来消融心肌组织的电极。 或者，消融装置是适于直流消融的电极。 在另一个实施例中，电极被替换为与使用激光的光能来消融组织的激光器连通的光纤。 另一个实施例是用于冷却其它应用的组织的低温导管，用作组合或分离的映射和消融装置，或用于本发明的冰图和消融装置。 实施例可以包括用于转向导管并用于在所提出的病变部位处稳定消融装置的装置。

    Cryo-surgical systems and methods of using the same
    33.
    发明授权
    Cryo-surgical systems and methods of using the same 有权

    公开(公告)号：US09757179B2

    公开(公告)日：2017-09-12

    申请号：US14561335

    申请日：2014-12-05

    申请人： ORASURE TECHNOLOGIES, INC.

    发明人： Philip Michael Formica

    IPC分类号： A61B18/02

    CPC分类号： A61B18/0218 ,  A61B2018/0275

    摘要： A method of preparing a cryo-surgical system for treatment includes accessing a container containing a refrigerant, a delivery tube having a first end configured to be in flow communication with the container and a second end opposite the first end. The system further includes a plurality of flexible finger portions disposed proximate the second end of the delivery tube opposite the first end. A porous applicator bud is disposed proximate the second end of the delivery tube. The porous applicator bud includes a body portion disposed between the plurality of flexible finger portions and a contact surface extending from the plurality of flexible finger portions. An adjustment ring disposed along the delivery tube adjacent to the plurality of flexible finger portions can be used to adjust the size of the contact surface of the porous applicator bud.

    CRYOTHERAPY PLANNING DEVICE AND CRYOTHERAPY DEVICE
    37.
    发明申请
    CRYOTHERAPY PLANNING DEVICE AND CRYOTHERAPY DEVICE 审中-公开

    公开(公告)号：US20110184401A1

    公开(公告)日：2011-07-28

    申请号：US13054439

    申请日：2009-07-10

    申请人： Kansei Iwata ,  Yasushi Iwata ,  Taisuke Nagasawa ,  Masafumi Kawamura ,  Yotaro Izumi ,  Masanori Inoue ,  Norimasa Tsukada ,  Hideki Yashiro

    发明人： Kansei Iwata ,  Yasushi Iwata ,  Taisuke Nagasawa ,  Masafumi Kawamura ,  Yotaro Izumi ,  Masanori Inoue ,  Norimasa Tsukada ,  Hideki Yashiro

    IPC分类号： A61B18/02

    CPC分类号： A61B18/02 ,  A61B34/10 ,  A61B2018/00041 ,  A61B2018/0275 ,  A61B2018/0281

    摘要： The present invention relates to a treatment device utilized in the freezing treatment method and its treatment planning device, and has an object to settle a freezing period·defrosting period according to a size of a treatment portion.A cryotherapy device comprises a gas supply-exhaust system 100, a control system 200 therefore and a freezing probe system 300. The gas supply-exhaust system 100 supplies a freezing gas and a defrosting gas to a probe 60 of the freezing probe system 300 to freeze and defrost the treatment portion surrounding the tip of the probe 60 by the Joule·Thomson effect. The control system 200 controls the gas supply-exhaust system 100 and makes treatment planning data for this control. The treatment planning data includes a freezing·defrosting sequence to determine the freezing period and the defrosting period. The determination of this sequence is performed by the computer in the control system 200. Further, this sequence is determined corresponding to the focus treatment size according to the freezing·defrosting characteristics of the tissue.

    摘要翻译： 本发明涉及一种在冷冻处理方法及其处理计划装置中使用的处理装置，其目的是根据处理部的尺寸来设定冷冻期·除霜期间。 冷冻治疗装置包括气体供给 - 排气系统100，因此控制系统200和冷冻探针系统300.气体供应 - 排气系统100将冷冻气体和除霜气体供应到冷冻探针系统300的探针60，以 通过焦耳·汤姆森效应冻结和除霜探针60的尖端周围的处理部分。 控制系统200控制供气排气系统100，并且进行该控制的处理计划数据。 治疗计划数据包括冷冻·除霜顺序，以确定冷冻期和除霜期。 该序列的确定由控制系统200中的计算机执行。此外，根据组织的冻结·除霜特性，对应于焦点处理尺寸确定该顺序。

    SYSTEMS AND METHODS OF MAKING AND USING A COILED COOLANT TRANSFER TUBE FOR A CATHETER OF A CRYOABLATION SYSTEM
    39.
    发明申请
    SYSTEMS AND METHODS OF MAKING AND USING A COILED COOLANT TRANSFER TUBE FOR A CATHETER OF A CRYOABLATION SYSTEM 审中-公开
    制造和使用用于制球系统导管的冷却冷却液转移管的系统和方法

    公开(公告)号：US20100179526A1

    公开(公告)日：2010-07-15

    申请号：US12685794

    申请日：2010-01-12

    申请人： David Lawrence

    发明人： David Lawrence

    IPC分类号： A61B18/02

    CPC分类号： A61B18/02 ,  A61B2018/0022 ,  A61B2018/0212 ,  A61B2018/0275 ,  A61B2018/0287

    摘要： A cryoablation catheter assembly includes an expansion element coupled to a distal portion of a catheter that is configured and arranged for insertion into patient vasculature. The catheter includes a guide tube, a coolant transfer tube, and at least one coolant outtake region that each extend along the catheter. The guide tube and the coolant transfer tube extend beyond the distal portion of the catheter. The coolant transfer tube includes a coiled distal that wraps around a portion of the guide tube and defines a plurality of spaced-apart spray apertures. The coolant transfer tube defines a lumen configured and arranged to receive and transfer coolant from a coolant source to the spray apertures. The expansion element is in fluid communication with the at least one coolant outtake region and the plurality of spray apertures.

    摘要翻译： 冷冻消融导管组件包括联接到导管的远端部分的膨胀元件，所述远端部分构造和布置成用于插入患者脉管系统中。 导管包括导管，冷却剂输送管和至少一个冷却剂输出区，每个冷却剂排出区沿导管延伸。 引导管和冷却剂传送管延伸超过导管的远端部分。 冷却剂传送管包括缠绕在引导管的一部分上并且限定多个间隔开的喷射孔的盘绕的远端。 冷却剂传送管限定了内部构造和布置成将冷却剂从冷却剂源接收和传递到喷射孔。 膨胀元件与至少一个冷却剂出口区域和多个喷射孔流体连通。

    Device and Method for Coordinated Insertion of a Plurality of Cryoprobes
    40.
    发明申请
    Device and Method for Coordinated Insertion of a Plurality of Cryoprobes 审中-公开
    协调插入多种冷冻人的装置和方法

    公开(公告)号：US20090292279A1

    公开(公告)日：2009-11-26

    申请号：US11884684

    申请日：2007-01-25

    申请人： Mordechai Bliweis ,  Roni Zvuloni

    发明人： Mordechai Bliweis ,  Roni Zvuloni

    IPC分类号： A61B18/02

    CPC分类号： A61B18/02 ,  A61B34/20 ,  A61B90/11 ,  A61B90/37 ,  A61B2017/00867 ,  A61B2018/00041 ,  A61B2018/0275 ,  A61B2018/0293

    摘要： The present invention relates to devices and methods delivering a plurality of thermal ablation probes to an organic target in a body, the probes being delivered in a configuration and orientation enabling efficient and thorough ablation of a large target of complex shape. Preferred embodiments include introducers having individual probe channels shaped to direct inserted probes to diverge upon exiting the introducer, probes designed and constructed to bend in selected manner when exiting the introducer, and apparatus for stabilizing an introducer with respect to a target during insertion of treatment probes from introducer to target.

    摘要翻译： 本发明涉及将多个热消融探针递送到身体中的有机靶的装置和方法，探针以配置和取向递送，从而能够对复杂形状的大目标进行有效且彻底的消融。 优选的实施方案包括具有单个探针通道的导入器，其形状适于在离开导引器时引导插入的探针发散，设计和构造为在离开导引器时以选定的方式弯曲的探针，以及用于在插入治疗探针期间相对于靶标稳定导引器的装置 从导引者到目标。