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43 条记录 (耗时 0.039 秒)

    Transport catheter
    5.
    发明授权
    Transport catheter 失效
    运输导管

    公开(公告)号：US5662620A

    公开(公告)日：1997-09-02

    申请号：US675365

    申请日：1996-07-02

    申请人： Clement E. Lieber ,  Miriam H. Taimisto ,  Mark A. Konno

    发明人： Clement E. Lieber ,  Miriam H. Taimisto ,  Mark A. Konno

    IPC分类号： A61B5/028 ,  A61B8/06 ,  A61B8/12 ,  A61M25/00

    CPC分类号： A61B8/06 ,  A61B5/028 ,  A61B8/12 ,  A61M25/0023 ,  A61M25/0029 ,  A61M25/003 ,  A61M25/0032

    摘要： A catheter with several independent lumens extending longitudinally through the catheter for accepting probes and for introducing fluid through the catheter and into a body cavity is disclosed. The cathater outer body has a cross-sectional maximum outer dimension. The first lumen is circular in cross-section, and has a cross-sectional dimension of approximately half the maximum outer dimension of the catheter body. The first lumen is capable of accepting various probes, as well as allowing simultaneous fluid flow through the lumen. The second lumen is crescent-shaped in cross-section and occupies at least a quarter of an arc around the cross-section of the catheter body. The large cross-section of the second lumen allows for a high fluid flow rate through the lumen. The third lumen allows for inflation of an inflation balloon (when present), and the fourth lumen allows for the passing of a portion of an instrument along the length of the lumen.

    摘要翻译： 公开了一种导管，其具有纵向延伸穿过导管以接纳探针并将流体引入导管并引入体腔的几个独立腔。 催化器外体具有横截面的最大外部尺寸。 第一腔是横截面为圆形，并且具有大约是导管体的最大外尺寸的一半的横截面尺寸。 第一个腔能够接受各种探针，同时允许液体同时流过内腔。 第二管腔的横截面为月牙形，并且在导管主体的横截面周围占据至少四分之一弧。 第二管腔的大横截面允许通过内腔的高流体流速。 第三管腔允许充气气囊（当存在时）的膨胀，并且第四管腔允许器械的一部分沿着管腔的长度通过。

    Catheter for electrophysiological procedures
    6.
    发明授权
    Catheter for electrophysiological procedures 失效
    导管用于电生理程序

    公开(公告)号：US5662606A

    公开(公告)日：1997-09-02

    申请号：US339125

    申请日：1994-11-14

    申请人： William W. Cimino ,  Robert Abrams ,  Miriam H. Taimisto ,  Marc Jenson ,  Patrick E. Macaulay

    发明人： William W. Cimino ,  Robert Abrams ,  Miriam H. Taimisto ,  Marc Jenson ,  Patrick E. Macaulay

    IPC分类号： A61B5/0408 ,  A61B5/0402 ,  A61B5/042 ,  A61B5/0478 ,  A61B5/0492 ,  A61B17/00 ,  A61B18/00 ,  A61B18/12 ,  A61B18/14 ,  A61M25/00 ,  A61M25/01 ,  A61M37/00

    CPC分类号： A61B5/0422 ,  A61B18/00 ,  A61B18/1492 ,  A61B5/6852 ,  A61B5/6855 ,  A61M25/0136 ,  A61M25/0144 ,  A61M25/0147 ,  A61B2017/00039 ,  A61B2017/00044 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2017/00853 ,  A61B2018/0016 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2018/0091 ,  A61B2018/00916 ,  A61B2018/00946 ,  A61B2018/1253 ,  A61B2562/0209 ,  A61B2562/043 ,  A61M25/0043 ,  A61M25/0054

    摘要： A catheter adapted to perform electrophysiological procedures comprises a body member, a manipulation handle attached to the proximal end of the body member for applying torque to the body member, the handle having a control knob adapted for control movements in a first plane and in a second plane simultaneously. A deflection control line is attached at its distal end to the distal portion of the catheter and its proximal end attached to the control device of the handle so that tension applied to the control line by sliding the control knob causes deflection of the distal portion of the catheter. A stiffening member is disposed within the body member of the catheter and is slidable, said stiffening member providing increased rigidity to the portion of the body member in which the stiffening member is located. Rotation of the control knob controls the position of the stiffening member in the body member. In a further aspect, a stiffening member in accordance with one embodiment includes a tapered distal end section with a ball formed on the distal tip, the tapered section terminating at the ball. In accordance with another aspect, the torsional rigidity of the catheter body is increased by use of a layer of aramid fibers mixed with an epoxy. In yet another feature, the handle and rotatable sliding element are symmetrically shaped to facilitate complete single-handed operation of the handle by the physician of all position control aspects of the catheter.

    摘要翻译： 适于执行电生理过程的导管包括身体构件，附接到身体构件的近端的操纵手柄，用于向身体构件施加扭矩，手柄具有适于控制第一平面中的运动的控制旋钮， 飞机同时进行。 偏转控制线在其远端附接到导管的远端部分，并且其近端附接到手柄的控制装置，使得通过滑动控制旋钮施加到控制线的张力导致远端部分的偏转 导管。 加强构件设置在导管的主体构件内并且可滑动，所述加强构件为加强构件所在的主体构件的部分提供增加的刚性。 控制旋钮的旋转控制加强构件在主体构件中的位置。 在另一方面，根据一个实施例的加强构件包括锥形远端部分，其具有形成在远侧末端上的球，锥形部分终止于球。 根据另一方面，通过使用与环氧树脂混合的芳族聚酰胺纤维层来增加导管体的扭转刚度。 在另一个特征中，手柄和可旋转的滑动元件是对称的，以便于医生对导管的所有位置控制方面的手柄的完全单手操作。

    Transport catheter and multiple probe analysis method
    7.
    发明授权
    Transport catheter and multiple probe analysis method 失效
    运输导管和多探针分析方法

    公开(公告)号：US5246016A

    公开(公告)日：1993-09-21

    申请号：US790724

    申请日：1991-11-08

    申请人： Clement E. Lieber ,  Miriam H. Taimisto ,  Mark A. Konno

    发明人： Clement E. Lieber ,  Miriam H. Taimisto ,  Mark A. Konno

    IPC分类号： A61B5/028 ,  A61B8/06 ,  A61B8/12 ,  A61M25/00

    CPC分类号： A61B8/06 ,  A61B5/028 ,  A61B8/12 ,  A61M25/0023 ,  A61M25/0029 ,  A61M25/003 ,  A61M25/0032

    摘要： A method of sequentially analyzing various body conditions with a plurality of probes is disclosed. Also disclosed, is a catheter which can be used to practice the method. The catheter has several independent lumens extending longitudinally therethrough for accepting probes and for introducing fluid therethrough and into a body cavity. The catheter outer body has a cross-sectional maximum outer dimension. The first lumen is circular in cross-section, and has a cross-sectional dimension of approximately half the maximum outer dimension of the catheter body. The first lumen is capable of accepting various probes, as well as allowing simultaneous fluid flow through the lumen. The second lumen is crescent-shaped in cross-section and occupies at least a quarter of an arc around the cross-section of the catheter body. The large cross-section of the second lumen allows for a high fluid flow rate through the lumen. The third lumen allows for inflation of an inflation balloon (when present), and the fourth lumen allows for the passing of a portion of an instrument along the length of the lumen.

    摘要翻译： 公开了一种使用多个探针顺序分析各种身体状况的方法。 还公开了可以用于实施该方法的导管。 该导管具有几个独立的内腔，其纵向穿过其中，用于接纳探针并将流体引入其中并进入体腔。 导管外体具有横截面的最大外部尺寸。 第一腔是横截面为圆形，并且具有大约是导管体的最大外尺寸的一半的横截面尺寸。 第一个腔能够接受各种探针，同时允许液体同时流过内腔。 第二管腔的横截面为月牙形，并且在导管主体的横截面周围占据至少四分之一弧。 第二管腔的大横截面允许通过内腔的高流体流速。 第三管腔允许充气气囊（当存在时）的膨胀，并且第四管腔允许器械的一部分沿着管腔的长度通过。

    Transducer with multiple resonant frequencies for an imaging catheter
    9.
    发明授权
    Transducer with multiple resonant frequencies for an imaging catheter 有权
    用于成像导管的具有多个谐振频率的传感器

    公开(公告)号：US08043222B2

    公开(公告)日：2011-10-25

    申请号：US12167802

    申请日：2008-07-03

    申请人： Miriam H. Taimisto ,  Richard Lardner

    发明人： Miriam H. Taimisto ,  Richard Lardner

    IPC分类号： A61B8/14

    CPC分类号： A61B8/12 ,  A61B8/445 ,  A61B8/4461

    摘要： A single transducer element that is capable of oscillation at a plurality of natural resonant frequencies may be used in an ultrasonic imaging catheter assembly including a catheter body configured to be inserted and guided through the vascular system of a living being, a lumen and a rotatable imaging core adapted to pass through the lumen, the imaging core including a flexible drive-shaft. Because the transducer element is capable of oscillation at a plurality of natural resonant frequencies, a user can switch from one frequency to another in order to improve the depth of field or resolution without having to switch out the catheter or imaging core.

    摘要翻译： 能够在多个天然共振频率下振荡的单个换能器元件可以用在超声成像导管组件中，所述超声成像导管组件包括构造成插入和引导通过活体，管腔和可旋转成像的血管系统的导管体 芯体适于穿过管腔，成像芯包括柔性驱动轴。 因为换能器元件能够以多个固有谐振频率振荡，所以用户可以从一个频率切换到另一个频率，以便改善景深或分辨率，而不必切断导管或成像芯。

    IMPEDANCE MEDIATED CONTROL OF POWER DELIVERY FOR ELECTROSURGERY
    10.
    发明申请
    IMPEDANCE MEDIATED CONTROL OF POWER DELIVERY FOR ELECTROSURGERY 有权
    电力传输电力的阻抗介质控制

    公开(公告)号：US20110238056A1

    公开(公告)日：2011-09-29

    申请号：US12907646

    申请日：2010-10-19

    申请人： Tim Koss ,  Miriam H. Taimisto ,  Roseanne Varner

    发明人： Tim Koss ,  Miriam H. Taimisto ,  Roseanne Varner

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1233 ,  A61B18/1442 ,  A61B2017/00026 ,  A61B2018/0063 ,  A61B2018/00642 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00755 ,  A61B2018/00875 ,  A61B2018/00886

    摘要： A method of controlling electrosurgical power delivery based on a comparison of sensed tissue impedance to various impedance threshold values is provided. Energy is delivered to tissue in a sealing cycle as a series of pulses. An initial pulse has a profile with a preset energy starting value that increases at a ramping rate to a preset end value. Sensed impedance data are monitored throughout each pulse and compared to each of an impedance threshold value for RF setpoint, an impedance threshold value for cumulative time, and an impedance threshold value for energy cutback. Based on sensed impedance during a pulse, the profile of a subsequent pulse can be modified. In the event of a high impedance event that reflects low tissue presence, energy may be cutback. A sealing cycle is stopped when a cumulative amount of time with an impedance value over the impedance cumulative time threshold value reaches a sealing cycle duration limit.

    摘要翻译： 提供了一种基于感测到的组织阻抗与各种阻抗阈值的比较来控制电外科输电的方法。 能量作为一系列脉冲在密封循环中输送到组织。 初始脉冲具有预设能量起始值的轮廓，其以斜坡率增加到预设的最终值。 在每个脉冲中监测感测的阻抗数据，并与RF设定点的阻抗阈值，累积时间的阻抗阈值和能量限制的阻抗阈值进行比较。 基于脉冲期间的感测阻抗，可以修改后续脉冲的轮廓。 在反映低组织存在的高阻抗事件的情况下，能量可以被削减。 当阻抗值超过阻抗累积时间阈值的累积时间达到密封循环持续时间限制时，停止密封循环。