Percutaneous myocardial revascularization
    1.
    发明申请
    Percutaneous myocardial revascularization 失效
    经皮心肌血运重建

    公开(公告)号:US20080314394A9

    公开(公告)日:2008-12-25

    申请号:US11191056

    申请日:2005-07-28

    IPC分类号: A61B19/00 A61B18/18

    摘要: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.

    摘要翻译: 在心脏中创建一系列经皮心肌血运重建(PMR)通道的装置和方法。 一种方法包括在从健康组织导向冬眠组织的心肌中形成通道图案。 合适的渠道模式包括线和阵列。 一种方法包括将不透射线标记物固定在心室壁中的位置,然后重复使用荧光透视来引导切割尖端在形成多个通道中的定位。 另一种方法使用注射到形成的每个通道中的不透射线材料作为标记。 另一种方法利用可锚定的,可旋转的切割探针,用于围绕锚定构件的通道形成,其中切割探针可以与锚固件的径向距离变化。 另一种方法是利用多线射频燃烧探头,同时形成多个通道。 另一种方法利用液氮引起局部组织死亡。

    Percutaneous myocardial revascularization
    2.
    发明申请
    Percutaneous myocardial revascularization 失效
    经皮心肌血运重建

    公开(公告)号:US20050257796A1

    公开(公告)日:2005-11-24

    申请号:US11191056

    申请日:2005-07-28

    摘要: Devices and methods for creating a series of percutaneous myocardial revascularization (PMR) channels in the heart. One method includes forming a pattern of channels in the myocardium leading from healthy tissue to hibernating tissue. Suitable channel patterns include lines and arrays. One method includes anchoring a radiopaque marker to a position in the ventricle wall, then using fluoroscopy repeatedly to guide positioning of a cutting tip in the formation of multiple channels. Another method uses radiopaque material injected into each channel formed, as a marker. Yet another method utilizes an anchorable, rotatable cutting probe for channel formation about an anchor member, where the cutting probe can vary in radial distance from the anchor. Still another method utilizes a multiple wire radio frequency burning probe, for formation of multiple channels simultaneously. Still another method utilizes liquid nitrogen to cause localized tissue death.

    摘要翻译: 在心脏中创建一系列经皮心肌血运重建(PMR)通道的装置和方法。 一种方法包括在从健康组织导向冬眠组织的心肌中形成通道图案。 合适的渠道模式包括线和阵列。 一种方法包括将不透射线标记物固定在心室壁中的位置,然后重复使用荧光透视来引导切割尖端在形成多个通道中的定位。 另一种方法使用注射到形成的每个通道中的不透射线材料作为标记。 另一种方法利用可锚定的,可旋转的切割探针,用于围绕锚定构件的通道形成,其中切割探针可以与锚固件的径向距离变化。 另一种方法是利用多线射频燃烧探头,同时形成多个通道。 另一种方法利用液氮引起局部组织死亡。

    Leadless Cardiac Stimulation Systems
    3.
    发明申请
    Leadless Cardiac Stimulation Systems 有权
    无引导心脏刺激系统

    公开(公告)号:US20070150037A1

    公开(公告)日:2007-06-28

    申请号:US11683577

    申请日:2007-03-08

    IPC分类号: A61N1/05

    摘要: Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.

    摘要翻译: 提供了使用无引线电极来提供起搏治疗的各种构造的系统。 在一个示例中,提供用于心脏心肌的多个部位的系统包括使用经皮,经腔,导管递送系统可植入位于心肌附近的位置的无线起搏电极。 每个电极包含用于起搏心肌的电能源,并且适于从心肌外部的源接收电磁能。 该系统还包括适于放置在心肌外部的源,并且使用局部测量的心电图来通过向电极发送电磁命令来同步心脏的起搏,以对电极周围的心肌进行加速。 还公开了用于递送和植入电极组件的这种系统,无线电极组件和输送导管的各种配置。

    Catheter systems with interchangeable parts
    8.
    发明授权
    Catheter systems with interchangeable parts 失效
    导管系统具有可互换部件

    公开(公告)号:US5941871A

    公开(公告)日:1999-08-24

    申请号:US45390

    申请日:1998-03-20

    IPC分类号: A61M25/00 A61M25/01 A61M29/02

    摘要: A catheter system having a changeable distal member. The catheter system includes a proximal member, including a shaft having a proximal end, a distal end and a lumen extending therethrough. A distal member is included having a distal portion which may be passed through the lumen of the proximal member and releasably sealed to the proximal member at a desired location during a catheter procedure. The distal member may further include a push member operably coupled to the distal portion. The distal member may include a fluid-tight releasable seal for releasably sealing the distal member to the proximal member.

    摘要翻译: 一种具有可变远端构件的导管系统。 导管系统包括近端构件,其包括具有近端,远端和延伸通过其的内腔的轴。 包括远侧构件,其具有可以穿过近端构件的内腔的远端部分,并且在导管过程期间在期望位置处可释放地密封到近端构件。 远侧构件还可包括可操作地联接到远侧部分的推动构件。 远端构件可以包括用于将远端构件可释放地密封到近端构件的流体密封的可释放密封件。