METHODS OF TREATING ATRIAL FIBRILLATION
    75.
    发明申请
    METHODS OF TREATING ATRIAL FIBRILLATION 有权
    治疗椎间盘突出症的方法

    公开(公告)号:US20140046298A1

    公开(公告)日:2014-02-13

    申请号:US14057972

    申请日:2013-10-18

    Abstract: At the present time, physicians often treat patients with atrial fibrillation (AF) using radiofrequency (RF) catheter systems to ablate conducting tissue in the wall of the Left Atrium of the heart around the ostium of the pulmonary veins. These systems are expensive and take time consuming to use. The present invention circular ablation system CAS includes a multiplicity of expandable needles that can be expanded around a central axis and positioned to inject a fluid like ethanol to ablate conductive tissue in a ring around the ostium of a pulmonary vein quickly and without the need for expensive capital equipment. The expansion of the needles is accomplished by self-expanding or balloon expandable structures. The invention includes centering means so that the needles will be situated in a pattern surrounding the outside of the ostium of a vein. Also included are members that limit the distance of penetration of the needles into the wall of the left atrium. The present invention also has application to ablating tissue around the ostium of a renal artery for the treatment of hypertension.

    Abstract translation: 目前,医生经常使用射频(RF)导管系统治疗房颤患者,以消融肺静脉周围心脏左心房壁的导电组织。 这些系统是昂贵的并且花费耗时的使用。 本发明的圆形消融系统CAS包括多个可扩展的针,其可以围绕中心轴线扩张并且被定位成像乙醇一样注入流体,以便快速地在肺静脉的口周围环绕环中的导电组织,而不需要昂贵的 资本设备。 针的膨胀通过自膨胀或球囊可膨胀结构来实现。 本发明包括定心装置,使得针头将位于围绕静脉口的外侧的图案中。 还包括限制针头进入左心房壁的距离的成员。 本发明还可用于消除肾动脉口周围的组织用于治疗高血压。

    INTRAVASCULAR ABLATION CATHETER WITH PRECISION DEPTH OF PENETRATION CALIBRATION
    76.
    发明申请
    INTRAVASCULAR ABLATION CATHETER WITH PRECISION DEPTH OF PENETRATION CALIBRATION 审中-公开
    具有精密深度穿透校准的血管内导管

    公开(公告)号:US20130274674A1

    公开(公告)日:2013-10-17

    申请号:US13835556

    申请日:2013-03-15

    Abstract: A catheter-based/intravascular ablation system includes needles which expand around a central axis to engage a blood vessel or left atrium wall, allowing the injection of an ablative solution for ablating conducting tissue, or nerve fibers around the ostium of the pulmonary vein or around the renal artery. The system includes means to adjust the depth of penetration into the tissue of the targeted blood vessel wall. The catheter can include expandable guide tubes that engage the blood vessel wall. Injection needles having injection egress at or near their sharpened distal end are then advanced through the guide tubes to penetrate the blood vessel wall to a prescribed depth. The ability to provide PeriVascular injection only affecting the outer layer(s) of a blood vessel without affecting the media has particular application for PeriVascular Renal Denervation (PVRD) of the sympathetic nerves which lie in or outside the adventitia of the renal artery.

    Abstract translation: 基于导管的/血管内消融系统包括围绕中心轴线扩张以接合血管或左心房壁的针,允许注射消融溶液以消融导管或围绕肺静脉口或周围的神经纤维 肾动脉。 该系统包括调节穿透到目标血管壁的组织中的深度的装置。 导管可以包括与血管壁接合的可扩张的导管。 然后在其尖锐的远端处或其附近注射出口的注射针穿过引导管穿过血管壁达规定的深度。 提供血管周围注射仅影响血管外层而不影响培养基的能力特别适用于位于肾动脉外膜或其外侧的交感神经的血管外肾去神经(PVRD)。

    INTRAVASCULAR ABLATION CATHETER WITH ENHANCED FLUOROSCOPIC VISIBILITY
    77.
    发明申请
    INTRAVASCULAR ABLATION CATHETER WITH ENHANCED FLUOROSCOPIC VISIBILITY 审中-公开
    具有增强的荧光可见性的血管内引流管

    公开(公告)号:US20130274673A1

    公开(公告)日:2013-10-17

    申请号:US13835221

    申请日:2013-03-15

    Abstract: A catheter-based/intravascular ablation system includes needles which expand around a central axis to engage a blood vessel or left atrium wall, allowing the injection of an ablative solution for ablating conducting tissue, or nerve fibers around the ostium of the pulmonary vein or around the renal artery. The system includes means to adjust the depth of penetration into the tissue of the targeted blood vessel wall. The catheter can include expandable guide tubes that engage the blood vessel wall. Injection needles having injection egress at or near their sharpened distal end are then advanced through the guide tubes to penetrate the blood vessel wall to a prescribed depth. The ability to provide PeriVascular injection only affecting the outer layer(s) of a blood vessel without affecting the media has particular application for PeriVascular Renal Denervation (PVRD) of the sympathetic nerves which lie in or outside the adventitia of the renal artery.

    Abstract translation: 基于导管的/血管内消融系统包括围绕中心轴线扩张以接合血管或左心房壁的针,允许注射消融溶液以消融导管或围绕肺静脉口或周围的神经纤维 肾动脉。 该系统包括调节穿透到目标血管壁的组织中的深度的装置。 导管可以包括与血管壁接合的可扩张的导管。 然后在其尖锐的远端处或其附近注射出口的注射针穿过引导管穿过血管壁达规定的深度。 提供血管周围注射仅影响血管外层而不影响培养基的能力特别适用于位于肾动脉外膜或其外侧的交感神经的血管外肾去神经(PVRD)。

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