公开(公告)号：US10595937B2

公开(公告)日：2020-03-24

申请号：US14369645

申请日：2012-12-27

Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

Inventor： Reed R. Heimbecher ,  Saurav Paul ,  Prathyusha Marri ,  Steven C. Christian ,  William M. Sutton ,  Paul H. McDowall

IPC: A61B18/14 ,  A61B5/00 ,  A61B18/12 ,  A61B18/00 ,  A61B90/00

Abstract: A system for diagnosis or treatment of tissue in a body is provided. The system includes an ablation catheter having a deformable, elongate shaft having proximal and distal ends. The catheter further includes an ablation delivery member disposed proximate the distal end of the shaft and configured to deliver ablation energy to ablate the tissue. In one embodiment, the ablation delivery member comprises an ablation electrode and may also be configured to generate a signal indicative of electrical activity in the tissue. The catheter further includes one or more sensing electrodes disposed proximate the ablation delivery member. The sensing electrodes are configured to generate signals indicative of electrical activity in the tissue. The system further includes an electronic control unit configured to control delivery of ablation energy from the ablation delivery member responsive to one or more of the generated signals indicative of electrical activity in the tissue.

公开(公告)号：US20170360448A1

公开(公告)日：2017-12-21

申请号：US15634904

申请日：2017-06-27

Applicant: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.

Inventor： James V. Kauphusman ,  Andre d'Avila ,  Vivek Reddy ,  William M. Sutton ,  Steven C. Christian ,  Harry A. Puryear

IPC: A61B17/12 ,  A61B18/14 ,  A61B18/00

CPC classification number: A61B17/12036 ,  A61B17/1204 ,  A61B17/12109 ,  A61B17/12122 ,  A61B17/12136 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00285 ,  A61B2018/00577 ,  A61B2018/00797 ,  A61B2018/00815 ,  A61B2018/00821

Abstract: A method is provided for ablating a portion of the myocardium. The method includes inserting an occlusion catheter into a vessel on a heart, occluding the vessel using the occlusion catheter, inserting an ablation catheter into a chamber of the heart, positioning the ablation catheter against the myocardium, and ablating a portion of the myocardium while the vessel is occluded. The system includes an occlusion catheter having a catheter body including a tubular member having a distal portion and a bend located in the distal portion, a balloon located proximal of the bend and configured to contact an inner surface of the CS when positioned therewithin, a plurality of marker bands positioned on the catheter body, and a plurality of electrodes positioned on the catheter body. One or more electrodes or coils can be used as a reference for an electroanatomical system and can be disposed on the occlusion catheter.

公开(公告)号：US20150327925A1

公开(公告)日：2015-11-19

申请号：US14719616

申请日：2015-05-22

Applicant: St. Jude Medical, Atrial Fibrillation Division, Inc.

Inventor： Steven C. Christian

IPC: A61B18/14 ,  A61B18/12

CPC classification number: A61B18/1492 ,  A61B18/12 ,  A61B2018/00029 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00101 ,  A61B2018/00107 ,  A61B2018/00577 ,  A61B2218/002

Abstract: An ablation electrode assembly is provided with improved irrigation cooling of the assembly and ablation site. The assembly includes a proximal end configured to be coupled to a catheter shaft and a distal end configured to deliver ablation energy to tissue. The assembly further includes a fluid manifold extending from the proximal end to the distal end and configured to fluidly communicate with a fluid lumen in the catheter shaft. The fluid manifold defines an axial passageway centered about a longitudinal axis extending in the longitudinal direction of the assembly. The axial passageway has a distal end terminating prior to the distal end of the electrode assembly. The assembly further includes means for creating turbulence in fluid exiting the first axial passageway.

Abstract translation: 消融电极组件具有改进的组装和消融部位的冲洗冷却。 组件包括构造成联接到导管轴的近端和构造成将消融能量递送至组织的远端。 组件还包括从近端延伸到远端并被配置为与导管轴中的流体腔流体连通的流体歧管。 流体歧管限定以围绕组件的纵向方向延伸的纵向轴线为中心的轴向通道。 轴向通道具有在电极组件的远端之前终止的远端。 组件还包括用于在离开第一轴向通道的流体中产生湍流的装置。

公开(公告)号：US20150011992A1

公开(公告)日：2015-01-08

申请号：US14326823

申请日：2014-07-09

Applicant: ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.

Inventor： Steven C. Christian

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B18/02 ,  A61B2018/00029 ,  A61B2018/00083 ,  A61B2018/00714 ,  A61B2018/00791 ,  A61B2018/00815 ,  A61B2018/00821 ,  A61B2018/00863 ,  A61B2018/00875 ,  A61B2217/007 ,  A61B2218/002

Abstract: An irrigated ablation electrode assembly comprises a distal member, a first manifold, and a second manifold. The distal member includes an outer surface; an inner surface; and at least one radially extending passageway that extends from the inner surface of the distal member to the outer surface of the distal member. The first manifold includes an outer surface, an inner cavity, and at least one radially extending passageway that extends from the inner cavity to the outer surface of the first manifold. The second manifold includes an outer surface, an inner surface, and at least one radially extending passageway that extends from the inner surface of the second manifold to the outer surface of the second manifold. Other irrigated ablation electrode assemblies are also presented.

Abstract translation: 灌溉消融电极组件包括远端构件，第一歧管和第二歧管。 远侧构件包括外表面; 内表面 以及从所述远端构件的内表面延伸到所述远端构件的外表面的至少一个径向延伸的通道。 第一歧管包括从第一歧管的内腔延伸到外表面的外表面，内腔和至少一个径向延伸的通道。 第二歧管包括从第二歧管的内表面延伸到第二歧管的外表面的外表面，内表面和至少一个径向延伸的通道。 还介绍了其他灌溉消融电极组件。