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265 条记录 (耗时 0.022 秒)

    Jaw structure for electrosurgical instrument
    111.
    发明授权
    Jaw structure for electrosurgical instrument 有权
    电外科器械的颌骨结构

    公开(公告)号：US06905497B2

    公开(公告)日：2005-06-14

    申请号：US10453086

    申请日：2003-05-31

    申请人： Csaba Truckai ,  James A. Baker ,  John H. Shadduck

    发明人： Csaba Truckai ,  James A. Baker ,  John H. Shadduck

    IPC分类号： A61B18/14 ,  A61B18/12

    CPC分类号： A61B18/1442 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00148 ,  A61B2018/0063

    摘要： An electrosurgical medical device for creating thermal welds in engaged tissue that provides general grasping and dissecting functionality. In an exemplary embodiment, at least one jaw of the instrument defines a tissue engagement plane carrying electrosurgical energy delivery means. The jaw assembly, in one mode of operation, can be used for general grasping and dissecting purposes wherein the jaws close in a non-parallel manner so that the distalmost jaw tip only engage tissue with little movement of the actuator lever in the handle of the instrument. In another mode of operation, the jaw assembly closes close in a parallel manner under very high compression to enable tissue welding.

    摘要翻译： 一种用于在接合组织中产生热焊缝的电外科医疗装置，其提供一般的抓握和解剖功能。 在示例性实施例中，器械的至少一个钳口限定了携带电外科能量输送装置的组织接合平面。 钳口组件在一种操作模式中可用于一般的抓取和解剖目的，其中钳口以不平行的方式闭合，使得最远端的钳口尖端仅接合组织，致动器杠杆在手柄中几乎没有移动 仪器。 在另一种操作模式中，钳夹组件在非常高的压缩下以平行的方式闭合以实现组织焊接。

    Method for ablating and/or coagulating tissue using moisture transport
    112.
    发明授权
    Method for ablating and/or coagulating tissue using moisture transport 失效
    使用水分运输消融和/或凝结组织的方法

    公开(公告)号：US06813520B2

    公开(公告)日：2004-11-02

    申请号：US09103072

    申请日：1998-06-23

    申请人： Csaba Truckai ,  Russel Mahlon Sampson ,  Stephanie Squarcia ,  Alfonzo Lawrence Ramirez ,  Estela Hilario

    发明人： Csaba Truckai ,  Russel Mahlon Sampson ,  Stephanie Squarcia ,  Alfonzo Lawrence Ramirez ,  Estela Hilario

    IPC分类号： A61F200

    CPC分类号： A61B18/1485 ,  A61B2017/22051 ,  A61B2017/4216 ,  A61B2018/00291 ,  A61B2018/126 ,  A61B2090/065 ,  A61M16/0481

    摘要： An apparatus and method for use in performing ablation or coagulation of organs and other tissue includes a metallized fabric electrode array which is substantially absorbent and/or permeable to moisture and gases such as steam and conformable to the body cavity. The array includes conductive regions separated by insulated regions arranged to produce ablation to a predetermined depth. Following placement of the ablation device into contact with the tissue to be ablated, an RF generator is used to deliver RF energy to the conductive regions and to thereby induce current flow from the electrodes to tissue to be ablated. As the current heats the tissue, moisture (such as steam or liquid) leaves the tissue causing the tissue to dehydrate. Suction may be applied to facilitate moisture removal. The moisture permeability and/or absorbency of the electrode carrying member allows the moisture to leave the ablation site so as to prevent the moisture from providing a path of conductivity for the current.

    摘要翻译： 用于进行器官和其他组织的消融或凝结的装置和方法包括金属化织物电极阵列，其基本上吸收和/或可渗透水分和气体，例如蒸汽并且适应体腔。 该阵列包括被设置为产生消融至预定深度的绝缘区域分开的导电区域。 在将消融装置放置成与要消融的组织接触之后，使用RF发生器将RF能量传递到导电区域，从而从电极感应电流流向要消融的组织。 当电流加热组织时，水分（如蒸汽或液体）离开组织，导致组织脱水。 可以采用抽吸以促进除湿。 电极承载构件的透湿性和/或吸收性允许水分离开消融部位，以防止水分为电流提供导电路径。

    System and method for detecting perforations in a body cavity
    113.
    发明授权
    System and method for detecting perforations in a body cavity 有权
    用于检测体腔穿孔的系统和方法

    公开(公告)号：US06743184B2

    公开(公告)日：2004-06-01

    申请号：US10400823

    申请日：2003-03-27

    申请人： Russel M. Sampson ,  Mike O'Hara ,  Csaba Truckai ,  Dean T. Miller

    发明人： Russel M. Sampson ,  Mike O'Hara ,  Csaba Truckai ,  Dean T. Miller

    IPC分类号： A61B500

    CPC分类号： A61B18/00 ,  A61B2017/00292 ,  A61B2017/00557 ,  A61B2090/064

    摘要： A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test lockout that prevents RF power delivery unless a perforation detection procedure previously has been performed.

    摘要翻译： 一种用于检测体腔中的穿孔的系统和方法。 根据本发明的方法，流体（液体或气体）被输送到体腔中以稍微加压空腔。 压力感测系统在预定的测试周期内监测空腔内的压力。 如果在测试期间空腔压力基本上不被维持，则在启动腔内处理之前，医生被警告进一步评估穿孔的空洞。 在系统的优选形式中，诸如RF消融系统的医疗系统具有穿孔检测功能。 该系统优选地包括防止RF功率传递的预测试锁定，除非先前已经执行了穿孔检测过程。

    Electrosurgical systems and techniques for sealing tissue
    115.
    发明授权
    Electrosurgical systems and techniques for sealing tissue 有权
    电外科系统和技术用于密封组织

    公开(公告)号：US06500176B1

    公开(公告)日：2002-12-31

    申请号：US09694233

    申请日：2000-10-23

    申请人： Csaba Truckai ,  John H. Shadduck

    发明人： Csaba Truckai ,  John H. Shadduck

    IPC分类号： A61B1818

    CPC分类号： A61B18/1445 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00702 ,  A61B2018/00791 ,  A61B2018/00875

    摘要： An electrosurgical medical device and technique for creating thermal welds in the transected margin of engaged tissue. The working end of the invention carries a bi-polar electrode arrangement that provides a novel type of Rf current flow for tissue welding described as an subfascial-to-fascial (or medial-to-surface) bi-polar approach. The working end of the device carries an openable and closable jaw assembly with paired first and second jaws for engaging tissue. The paired jaws have an axial channel for receiving a sliding (blade) member for transecting the captured tissue. The paired jaws carry electrode surfaces having a common polarity so that Rf current will not flow directly between the jaws which engage the surface or fascial tissue layers. The transecting member, when fully extended after transecting the captured tissue, carries an elongate electrode of an opposing polarity that engages the medial or subfascial layers of the tissue. Thus, bi-polar current is directed to flow from the transecting member electrode that engages medial tissue layers to both jaws that engage opposing surface tissue layers to create effective current densities in the medial tissue layers, even when transecting thick tissue volumes or vessels with thick non-uniform fascial layers.

    摘要翻译： 一种用于在接合组织的横切边缘产生热焊缝的电外科医疗装置和技术。 本发明的工作端携带双极电极装置，其提供用于组织焊接的新型的Rf电流流动，其被描述为子筋 - 筋膜（或内向 - 面）双极方法。 该装置的工作端装有一个可打开和关闭的钳口组件，具有成对的第一和第二钳口，用于接合组织。 成对的夹爪具有轴向通道，用于接收用于横切所捕获的组织的滑动（叶片）构件。 成对的钳口携带具有共同极性的电极表面，使得Rf电流将不会直接流到接合表面或筋膜组织层的钳口之间。 横切构件在横切被捕获的组织之后完全延伸时，携带相对极性的细长电极，其接合组织的内侧或筋膜下层。 因此，双极电流被引导到从接合内侧组织层的横截面部件电极到与接合相对表面组织层的两个钳口的流动，以便在内侧组织层中形成有效的电流密度，即使当横截面厚的组织体积或具有厚的 不均匀的筋膜层。

    Extrusion method
    116.
    发明授权
    Extrusion method 失效
    挤出法

    公开(公告)号：US5063018A

    公开(公告)日：1991-11-05

    申请号：US532626

    申请日：1990-06-04

    申请人： Carlos A. Fontirroche ,  Csaba Truckai

    发明人： Carlos A. Fontirroche ,  Csaba Truckai

    IPC分类号： A61M25/00 ,  B29C47/02 ,  B29C47/20

    CPC分类号： B29C47/023 ,  A61M25/0009 ,  B29C47/0016 ,  B29C47/0023 ,  B29C47/0028 ,  B29C47/003 ,  B29C47/20 ,  B29C47/26 ,  A61M2025/0034 ,  A61M25/0032 ,  B29L2031/60

    摘要： Multiple lumen tubing is extruded by first extruding an inner tube of molten plastic about a metallic, bore-forming mandrel wire, followed by extruding about the inner tube an outer tube of molten plastic having a lumen formed by air mandrel means, with the inner and outer tubes being bonded together. This may be accomplished by means of a mandrel which is positioned in an extrusion die, with the mandrel defining a distal end portion positioned and shaped to form a lumen in the tubing, and an air flow passage extending through the mandrel to provide an air mandrel to the newly formed lumen to prevent its collapse. The distal end portion of the mandrel may be carried by an intermediate neck portion which has at least one transverse dimension that is less than the corresponding transverse dimension of the distal end portion.

    摘要翻译： 通过首先将熔融塑料的内管围绕金属孔形成心轴线挤出，然后将内管挤压成具有由空气心轴装置形成的内腔的熔融塑料外管，挤压内腔管，内管和 外管结合在一起。 这可以通过定位在挤出模具中的心轴来实现，其中心轴限定了远端部分，该远端部分定位并成形为在管道中形成管腔，以及空气流动通道延伸穿过心轴以提供空气心轴 到新形成的流明以防止其崩溃。 心轴的远端部分可以由具有小于远端部分的相应横向尺寸的至少一个横向尺寸的中间颈部部分承载。