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公开(公告)号：US20240215893A1
公开(公告)日：2024-07-04
申请号：US18398738
申请日：2023-12-28
CPC分类号： A61B5/287 , A61B5/367 , A61B2562/046 , A61B2562/164
摘要： A multilayered end effector for a mapping catheter including a first flexible circuit, a framework generally parallel to the first flexible circuit and separated therefrom by a first orthogonal gap orthogonal to the longitudinal axis, a second flexible circuit, and a location sensing coil layer having a plurality of coils suitably oriented and preferably disposed generally parallel to the framework and separated from the framework by a second orthogonal gap. The second flexible circuit can be separated from the location sensing coil layer by a third orthogonal gap. The first orthogonal gap, the second orthogonal gap, and the third orthogonal gap can be filled with a flexible non-conductive material, and the first face of the first flexible circuit and the first face of the second flexible circuit being coated with the flexible non-conductive material.
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公开(公告)号：US20170071661A1
公开(公告)日：2017-03-16
申请号：US14964301
申请日：2015-12-09
摘要： This disclosure is directed to a catheter having a dual node multiray electrode assembly at the distal end of the catheter body. The dual node multiray electrode assembly includes a proximal multiray array with a plurality of spines connected at one end, each spine having at least one ablation electrode, and a distal node. The dual node multiray electrode assembly may have an expanded configuration and a collapsed configuration wherein the spines are arranged generally along a longitudinal axis of the catheter body. The distal node may be configured to be deployed within a vessel and the proximal multiray array may be configured to engage tissue forming an ostium of the vessel with the ablation electrodes. In some embodiments, the relative distance between the proximal multiray array and the distal node is adjustable.
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3.发明公开公开(公告)号：US20240215854A1
公开(公告)日：2024-07-04
申请号：US18509604
申请日：2023-11-15
发明人： Juan RODRIGUEZ SOTO , Mohammad ABBAS , Babak EBRAHIMI , Pieter Emmelius VAN NIEKERK , Shubhayu BASU
CPC分类号： A61B5/062 , A61B18/1492 , A61B2018/00577
摘要： The disclosed technology includes a medical probe comprising a substantially cylindrical structure including a proximal circular base, a distal circular base substantially parallel to the proximal circular base, and plurality of spines extending along a longitudinal axis between the proximal circular base and the distal circular base, and a membrane positioned over the plurality of spines defining an internal volume about the longitudinal axis. The plurality of spines comprise a bifurcated portion positioned along at least a portion of the spine between the distal circular base and the proximal circular base. The membrane comprises one or more electrodes coupled to an external surface of the membrane. The membrane is configured to permit fluid communication from outside the membrane to the internal volume.
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公开(公告)号：US20230149069A1
公开(公告)日：2023-05-18
申请号：US17974179
申请日：2022-10-26
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00267
摘要： An end effector having loop members with electrodes thereon and are usable with catheter-based systems to measure or provide electrical signals. The end effector can include three loop members that are non-coplanar when expanded unconstrained that become contiguous to a planar surface when the loop members are deflected against the surface, a mechanical linkage that joins the loop members at a distal vertex of the end effector. The end effector may have a lateral gap length between laterally adjacent electrodes approximately twice that of a longitudinal gap length between longitudinally adjacent electrodes. In some configurations, longitudinal electrode bipole pairs having a gap distance approximately equal to the lateral gap distance may be provided by bypassing every other electrode in the longitudinal direction.
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公开(公告)号：US20210369339A1
公开(公告)日：2021-12-02
申请号：US17029752
申请日：2020-09-23
发明人： Henry F. SALAZAR , Dustin R. TOBEY , Shubhayu BASU , Sean D. THALER , Joseph R. WONG , Daniele GHIDOLI , Pieter Emmelius VAN NIEKERK , Jamie Lynn MALINARIC , Cesar FUENTES-ORTEGA
IPC分类号： A61B18/14
摘要： An apparatus includes an end effector having loop members with electrodes thereon and is usable with catheter-based systems to measure or provide electrical signals. The end effector can include three loop members that are non-coplanar when expanded unconstrained that become contiguous to a planar surface when the loop members are deflected against the surface, a mechanical linkage that joins the loop members at a distal vertex of the end effector, electrodes having surface treatment to enhance surface roughness of the electrodes, twisted pair electrode wires, a bonded spine cover, and/or any combination thereof.
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公开(公告)号：US20170164858A1
公开(公告)日：2017-06-15
申请号：US14966220
申请日：2015-12-11
发明人： Shubhayu BASU
CPC分类号： A61B5/0422 , A61B5/6858 , A61B5/6859 , A61B18/14 , A61B18/1492 , A61B2018/0016 , A61B2018/00267 , A61B2018/00351 , A61B2018/00577 , A61B2018/00839 , A61B2034/2051 , A61B2505/05
摘要： This disclosure includes a catheter with an electrode array formed by an interconnected framework. The framework may have a plurality of elements interconnected by a plurality of junctions at locations intermediate the proximal and distal ends of the electrode array assembly. The electrodes may be printed on a polymeric layer of the interconnected framework.
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公开(公告)号：US20240277277A1
公开(公告)日：2024-08-22
申请号：US18654359
申请日：2024-05-03
发明人： Ryan HOITINK , Curt R. EYSTER , Stuart WILLIAMS , Meir BAR-TAL , Shubhayu BASU , Shamim QUTUBUDDIN
CPC分类号： A61B5/287 , A61B5/6858 , A61B5/6859 , A61B18/1492 , A61B2018/00267 , A61B2018/00357 , A61B2018/00577 , A61B2018/00839 , A61B2018/1467 , A61B2562/222
摘要： A catheter adapted or high density mapping and/or ablation of tissue surface has a distal electrode matrix having a plurality of spines arranged in parallel configuration on which a multitude of electrodes are carried in a grid formation for providing uniformity and predictability in electrode placement on the tissue surface. The matrix can be dragged against the tissue surface upon deflection (and/or release of the deflection) of the catheter. The spines generally maintain their parallel configuration and the multitude of electrodes generally maintain their predetermined relative spacing in the grid formation as the matrix is dragged across the tissue surface in providing very high density mapping signals. The spines may have free distal ends, or distal ends that are joined to form loops for maintaining the spines in parallel configuration.
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公开(公告)号：US20210369132A1
公开(公告)日：2021-12-02
申请号：US17029890
申请日：2020-09-23
发明人： Pieter Emmelius VAN NIEKERK , Jamie Lynn MALINARIC , Cesar FUENTES-ORTEGA , Henry SALAZAR , Dustin R. TOBEY , Shubhayu BASU , Sean D. THALER , Joseph R. WONG , Daniele GHIDOLI
摘要： Examples presented herein generally include systems and methods which can contact electrodes to cardiac tissue while sensing electrical potential from fluids near the tissue. The electrodes in contact with the tissue can be carried by an end effector and can be used to sense and/or ablate the tissue they contact. A reference electrode can be insulated by a shaft connected to the end effector so that the reference electrode can sense the electrical potentials from the fluids near the tissue while being prevented, by the shaft geometry, from contacting the cardiac tissue. In some examples, the reference electrode can be tubular, having an inner surface that is configured to contact and sense electrical potentials from the fluids and an electrically insulated outer surface. Configured as such, the reference electrode can serve as an extension of an irrigation tube extending through the shaft.
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公开(公告)号：US20210361216A1
公开(公告)日：2021-11-25
申请号：US17392522
申请日：2021-08-03
发明人： Ryan HOITINK , Curt R. EYSTER , Stuart WILLIAMS , Meir BAR-TAL , Shubhayu BASU , Shamim QUTUBUDDIN
摘要： A catheter adapted or high density mapping and/or ablation of tissue surface has a distal electrode matrix having a plurality of spines arranged in parallel configuration on which a multitude of electrodes are carried in a grid formation for providing uniformity and predictability in electrode placement on the tissue surface. The matrix can be dragged against the tissue surface upon deflection (and/or release of the deflection) of the catheter. The spines generally maintain their parallel configuration and the multitude of electrodes generally maintain their predetermined relative spacing in the grid formation as the matrix is dragged across the tissue surface in providing very high density mapping signals. The spines may have free distal ends, or distal ends that are joined to form loops for maintaining the spines in parallel configuration.
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公开(公告)号：US20170071660A1
公开(公告)日：2017-03-16
申请号：US14964300
申请日：2015-12-09
摘要： This disclosure is directed to a catheter having a dual node multiray electrode assembly at the distal end of the catheter body. The dual node multiray electrode assembly includes a proximal multiray array with a plurality of spines connected at one end, each spine having at least one ablation electrode, and a distal node. The dual node multiray electrode assembly may have an expanded configuration and a collapsed configuration wherein the spines are arranged generally along a longitudinal axis of the catheter body. The distal node may be configured to be deployed within a vessel and the proximal multiray array may be configured to engage tissue forming an ostium of the vessel with the ablation electrodes. In some embodiments, the relative distance between the proximal multiray array and the distal node is adjustable.
摘要翻译： 本公开涉及一种在导管主体的远端处具有双节点多周电极组件的导管。 双节点多周电极组件包括具有在一端连接的多个脊的近端多层阵列，每个脊具有至少一个消融电极和远端节点。 双节点多周电极组件可以具有扩张构型和折叠构造，其中脊通常沿着导管主体的纵向轴线布置。 远端节点可以被配置为展开在容器内，并且近端多层阵列可以被配置成与消融电极接合形成容器的口的组织。 在一些实施例中，近端多眼镜阵列和远端节点之间的相对距离是可调节的。
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