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23 条记录 (耗时 0.012 秒)

    METHOD AND APPARATUS FOR PERFORMING CARDIAC ABLATIONS
    2.
    发明公开
    METHOD AND APPARATUS FOR PERFORMING CARDIAC ABLATIONS 有权
    设备在心脏上进行消融

    公开(公告)号：EP1189544A2

    公开(公告)日：2002-03-27

    申请号：EP00938145.0

    申请日：2000-06-01

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S. ,  PATTERSON, Donald

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1492 ,  A61B2017/003 ,  A61B2018/00577 ,  A61B2018/00791

    摘要： A device, and method for performing cardiac ablations includes a therapeutic instrument, for example, an ablation catheter (10), to which is mounted a flexible, and braided electrode (14). The electrode configuration is selected so that it has a desired surface area for proper heat convection properties. RF energy (26) is delivered to the electrode to heat, thereby ablate local heart tissue, with the electrode having good convection abilities to protect against coagulation, embolisms, and other undesirable effects of ablation procedures.

    Rotatable control mechanism for steerable catheter
    4.
    发明授权
    Rotatable control mechanism for steerable catheter 失效
    一个可操纵导管可旋转的控制机制

    公开(公告)号：EP1019133B1

    公开(公告)日：2003-08-13

    申请号：EP98911769.2

    申请日：1998-03-17

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S.

    IPC分类号： A61M25/01

    CPC分类号： A61M25/0147 ,  A61B2018/00916 ,  A61M25/0136

    摘要： A steerable catheter control mechanism comprises a rotatable driver and a deflection device responsive to the driver to selectively secure a pair of control wires. The control wires are positioned such that rotation of the driver reduces the effective deflection device radius while loading a selected wire in tension, thereby maintaining a relatively constant torque acting on the driver and minimizing operator fatigue. The deflection device is also responsive to the driver to selectively place one of the control wires in tension while maintaining the other wire in a static state thereby minimizing control wire fatigue.

    Apparatus for performing cardiac ablations
    6.
    发明授权
    Apparatus for performing cardiac ablations 有权
    设备在心脏上进行消融

    公开(公告)号：EP1189544B1

    公开(公告)日：2009-01-14

    申请号：EP00938145.0

    申请日：2000-06-01

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S. ,  PATTERSON, Donald

    IPC分类号： A61B18/18 ,  A61B18/14

    CPC分类号： A61B18/1492 ,  A61B2017/003 ,  A61B2018/00577 ,  A61B2018/00791

    摘要： A device, and method for performing cardiac ablations includes a therapeutic instrument, for example, an ablation catheter (10), to which is mounted a flexible, and braided electrode (14). The electrode configuration is selected so that it has a desired surface area for proper heat convection properties. RF energy (26) is delivered to the electrode to heat, thereby ablate local heart tissue, with the electrode having good convection abilities to protect against coagulation, embolisms, and other undesirable effects of ablation procedures.

    ELECTROPHYSIOLOGY CATHETER FOR MAPPING AND/OR ABLATION
    7.
    发明授权
    ELECTROPHYSIOLOGY CATHETER FOR MAPPING AND/OR ABLATION 有权
    电导管标测和消融

    公开(公告)号：EP1383567B1

    公开(公告)日：2007-11-28

    申请号：EP02719403.4

    申请日：2002-03-29

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S. ,  BURNS, Steven, J. ,  GIBSON, Charles, A. ,  MACADAM, David ,  DAVIS, Nicholas, G.

    IPC分类号： A61M25/00

    CPC分类号： A61B18/1492 ,  A61B18/1815 ,  A61B2018/00839 ,  A61B2018/1435

    摘要： Catheters for mapping and/or ablation are disclosed. In one embodiment, the catheter comprises a handle, a flexible shaft, a tip assembly, and a cable. The handle includes an actuator and is attached, at its distal end, to the proximal end of the flexible shaft. The flexible shaft has a longitudinal axis that extends along a length of the shaft. The proximal end of the tip assembly is attached to the distal end of the shaft and includes a fixed bend of approximatley ninety degrees relative to the longitudinal axis of the shaft. The distal end of the tip assembly includes an arcuate curve having a diameter. The arcuate curve is oriented in a plane that is approximatley perpendicular to the longitudinal axis of the shaft. The cable is attached to the actuator and the distal end of the tip assembly, and extends through the shaft. The cable is adapted to change the diameter of the arcuate curve in response to movement of the actuator.

    ELECTRODE CONTACT EVALUATION AND ABLATION SYSTEM
    8.
    发明授权
    ELECTRODE CONTACT EVALUATION AND ABLATION SYSTEM 有权
    SYSTEM FOR电极接触回顾和消融

    公开(公告)号：EP1214007B1

    公开(公告)日：2005-06-01

    申请号：EP00963544.2

    申请日：2000-09-14

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S.

    IPC分类号： A61B18/12 ,  A61B18/14

    CPC分类号： A61B18/1492 ,  A61B18/1206 ,  A61B2018/00815 ,  A61B2018/00875

    摘要： The system and methods of the invention gauge the amount or quality of the contact between body tissue and one or more electrodes supported on a catheter. In further aspects, the invention concerns methods for controlling power delivery to particular electrodes on a catheter in response to tissue contact data derived from that electrode or other electrodes during the ablation procedure. The invention monitors and processes information concerning the number of pulses of pulsed radio-frequency energy that are delivered during an ablation procedure. The amount or quality of tissue contact is gauged by comparing the number of pulses delivered to a particular electrode during the interval to either the number of pulses delivered to at least one other electrode of the plural electrodes or data derived during the ablation procedure. The system and method can provide a display of the gauge of tissue contact among the various electrodes and also can automatically control distribution of pulsed RF energy in response to the gauge of tissue contact.

    HANDLE DESIGN FOR A MEDICAL CATHETER
    9.
    发明公开
    HANDLE DESIGN FOR A MEDICAL CATHETER 有权
    手柄设计，能医用导管

    公开(公告)号：EP1387641A1

    公开(公告)日：2004-02-11

    申请号：EP02766832.6

    申请日：2002-04-26

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S. ,  GIBSON, Charles

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B18/1815 ,  A61B2018/00214 ,  A61B2018/00839 ,  A61B2018/00898 ,  A61B2018/1435

    摘要： A handle for use with a catheter, the handle including a housing, a cable, and a guide. The housing has a proximal end, a distal end, and a longitudinal axis that extends from the proximal end of the housing to the distal end of the housing. The cable is disposed in the housing and extends through the proximal end of the housing. A portion of the cable that is disposed in the housing is movable, under compression, in a first direction that is substantially aligned with the longitudinal axis of the housing. The guide is disposed in the housing and is adapted to prevent the portion of the cable from moving in a second direction that is transverse to the first direction when the portion of the cable is moved in the first direction. The handle is suitable for use with an electrophysiology catheter having an elongated shaft.

    MEDICAL DEVICE HAVING AN INCREMENTALLY DISPLACEABLE ELECTRODE
    10.
    发明公开
    MEDICAL DEVICE HAVING AN INCREMENTALLY DISPLACEABLE ELECTRODE 审中-公开
    具有渐进可调LEAD医疗器械

    公开(公告)号：EP1233715A1

    公开(公告)日：2002-08-28

    申请号：EP00955752.1

    申请日：2000-08-17

    申请人： C.R. BARD, INC.

    发明人： FALWELL, Gary, S.

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1492 ,  A61B18/1815 ,  A61B2018/0091 ,  A61B2018/00916 ,  A61B2018/00946

    摘要： A medical device in one embodiment includes an electrode (12) which is connected to a flexible, tubular, movable member, such as a catheter shaft or an outer sheath, which is slidably extended over a guide wire, flexible shaft, or other tubular member. A displacement mechanism (20) is connected to the movable member, and may be actuated one or more times to displace the movable member in successive, predetermined increments, for creating a linear lesion or for performing diagnostic functions.