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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：US20230210433A1
公开(公告)日：2023-07-06
申请号：US18056670
申请日：2022-11-17
发明人： Mohammad ABBAS , Dustin R. TOBEY , Babak EBRAHMIMI
CPC分类号： A61B5/287 , A61B5/6852 , A61B5/6869 , A61B5/364
摘要： Example apparatuses disclosed herein are generally usable with catheter-based systems to measure or provide electrical signals within the heart and surrounding vasculature. Example apparatuses generally include an end effector with one or more spines that can rotate about a longitudinal axis such that the spines are aligned in a plane in a first configuration and the one or more spines are rotated out of the plane in a second configuration. The end effector can include features which provide improved and/or alternative diagnostic or treatment options compared to existing end effectors. In some example treatments utilizing some example apparatuses presented herein, an end effector can map a wall within the heart in the first configuration and a lumen of a vein in the second configuration.
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公开(公告)号：US20210196926A1
公开(公告)日：2021-07-01
申请号：US17119366
申请日：2020-12-11
发明人： Jamie Lynn MALINARIC , John FOLEY , Dustin R. TOBEY , Pieter Emmelius VAN NIEKERK , Cesar FUENTES-ORTEGA , Simon LOPEZ , Paul SUAREZ
摘要： A catheter includes a catheter body and a distal tip section that includes an elongated member that extends along a longitudinal axis. An anchor mechanism can be disposed along an outer surface of the elongated member and/or within the elongated member in a first configuration. In a second configuration, the anchor mechanism can be configured to extend radially outward with respect to the longitudinal axis to surround at least a portion of the distal tip section.
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公开(公告)号：US20200323456A1
公开(公告)日：2020-10-15
申请号：US16912567
申请日：2020-06-25
发明人： Don K. NGUYEN , Qun SHA , Zhong (Jack) WANG , Jamie Lynn MALINARIC , Dustin R. TOBEY , Shubhayu BASU , Cesar FUENTES-ORTEGA , Pieter Emmelius VAN NIEKERK
摘要： A catheter system to record and map electrical signals by cardiac tissues before, during, and/or after the treatment of cardiac arrhythmias in a group of patients. The system can include an elongated body; a distal electrode assembly comprising a proximal stem, a plurality of spines emanating from the stem; and a plurality of nonconductive spine covers, each surrounding a respective spine. Each spine can cover one or more tensile members of the respective spine cover. The system can be configured to achieve clinically improved performance and safety of catheter configurations as to accessibility into target areas of a beating heart.
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5.发明公开公开(公告)号：US20230380746A1
公开(公告)日：2023-11-30
申请号：US18303404
申请日：2023-04-19
发明人： Pieter Emmelius VAN NIEKERK , Dustin R. TOBEY , Amar PATEL , Babak EBRAHIMI , John Christian KNUDSON
CPC分类号： A61B5/287 , A61B5/367 , A61B18/1492 , A61B5/6858 , A61B5/6856
摘要： The disclosed technology includes a catheter for electrophysiology applications. The catheter can comprise a shaft extending along a longitudinal axis to a distal end and an end effector coupled to the distal end of the shaft. The end effector can include a plurality of loop members. Each loop member of the plurality of loop members can include a corresponding stress distribution node positioned at a distal portion of the respective loop member and a plurality of electrodes affixed to the plurality of loop members.
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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：US20240215920A1
公开(公告)日：2024-07-04
申请号：US18505789
申请日：2023-11-09
CPC分类号： A61B5/6859 , A61B5/287 , A61B5/6869 , A61B2560/0468 , A61B2562/043 , A61B2562/046 , A61B2562/16
摘要： A loop assembly for a catheter, the assembly including a primary frame member, a secondary frame member, and a sleeve disposed around least one of the primary and secondary frame members. The primary frame member can have at least a first cross-sectional area and can include a pair of proximal ends extending along a longitudinal axis to a closed distal end. The secondary frame member can have at least a second cross-sectional area different from the first cross-sectional area, can be disposed on at least a portion of the primary frame member between the proximal ends and the closed distal end, and can be configured to slide in at least a first dimension relative to the primary frame member.
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公开(公告)号：US20220079492A1
公开(公告)日：2022-03-17
申请号：US17534748
申请日：2021-11-24
发明人： Don K. NGUYEN , Qun SHA , Zhong (Jack) WANG , Jamie Lynn HENRIQUEZ , Dustin R. TOBEY , Shubhayu BASU , Cesar FUENTES-ORTEGA , Pieter Emmelius VAN NIEKERK
摘要： A catheter system to record and map electrical signals by cardiac tissues before, during, and/or after the treatment of cardiac arrhythmias in a group of patients. The system can include an elongated body; a distal electrode assembly comprising a proximal stem, a plurality of spines emanating from the stem; and a plurality of nonconductive spine covers, each surrounding a respective spine. Each spine can cover one or more tensile members of the respective spine cover. The system can be configured to achieve clinically improved performance and safety of catheter configurations as to accessibility into target areas of a beating heart.
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公开(公告)号：US20200281493A1
公开(公告)日：2020-09-10
申请号：US16781952
申请日：2020-02-04
发明人： Don K. NGUYEN , Qun SHA , Zhong (Jack) WANG , Jamie Lynn MALINARIC , Dustin R. TOBEY , Shubhayu BASU , Cesar FUENTES-ORTEGA , Pieter Emmelius VAN NIEKERK
摘要： A catheter system to record and map electrical signals by cardiac tissues before, during, and/or after the treatment of cardiac arrhythmias in a group of patients. The system can include an elongated body; a distal electrode assembly comprising a proximal stem, a plurality of spines emanating from the stem; and a plurality of nonconductive spine covers, each surrounding a respective spine. Each spine can cover one or more tensile members of the respective spine cover. The system can be configured to achieve clinically improved performance and safety of catheter configurations as to accessibility into target areas of a beating heart.
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