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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：US20240197389A1
公开(公告)日：2024-06-20
申请号：US18067115
申请日：2022-12-16
发明人： Pieter Emmelius VAN NIEKERK , Mario A. SOLIS , Erik LAZO , Jamie Lynn HENRIQUEZ , Cesar FUENTES-ORTEGA
CPC分类号： A61B18/1492 , A61M25/0147 , A61B2018/00077
摘要： A multi-electrode catheter is presented herein having a puller wire with a distal end bonded to a coupler tube between a catheter shaft body and end effector. Because the puller wire is bonded to the coupler tube, a distal portion of the catheter body shaft, at least up to a proximal end of the coupler tube, can be deflected when the puller wire is retracted. The coupler tube may also be flexible and be deflectable when the puller wire is retracted. The coupler tube may bend with a radius of curvature that is greater than, equal to, or less than a radius of curvature of the distal portion of the catheter body shaft, depending on design considerations of the catheter. The coupler tube may be made from a flexible material and/or may include sidewall slits which facilitate bending of the coupler tube.
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3.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：US20220347376A1
公开(公告)日：2022-11-03
申请号：US17866708
申请日：2022-07-18
发明人： Pieter Emmelius VAN NIEKERK , Cesar FUENTES-ORTEGA , Erik LAZO , Jace P. VALLS , Kevin Justin HERRERA
摘要： An irrigation balloon catheter includes one or more inner balloons inside of an irrigation balloon. The inner balloon(s) can be compliant with a volume that is dynamically adjustable for rapid inflation, rapid deflation, complete deflation, and/or irrigation flow adjustment. An inflator tool can be configured to inflate or deflate the inner balloon to adjust flow from the outer, irrigation balloon to affect temperature at electrodes of the irrigation balloon.
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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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6.发明公开公开(公告)号：US20240216055A1
公开(公告)日：2024-07-04
申请号：US18510180
申请日：2023-11-15
发明人： Juan RODRIGUEZ SOTO , Mohammad ABBAS , Babak EBRAHIMI , Pieter Emmelius VAN NIEKERK , Shubhayu BASU
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00577
摘要： The disclosed technology includes a medical probe comprising a plurality of spine members that form a substantially cylindrical structure. Each spine is stamped from a continuous piece of flat stock and heat-treated to a configuration including a first section extending along a longitudinal axis from a first end to a first bend, a second section extending from the first section curvilinearly with respect to the longitudinal axis and comprising a bifurcation point, and a third section extending along the longitudinal axis from a second bend to a second end so that a proximal portion of the third section is generally parallel to the first section. The second section comprises a continuous leg and a discontinuous leg. The continuous leg extends between the first section and the bifurcation point. The discontinuous leg extends towards the first section and terminates at a termination point between the bifurcation point and the first end.
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7.发明公开公开(公告)号：US20240216053A1
公开(公告)日：2024-07-04
申请号：US18509900
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： A61B18/1492 , A61B18/16 , A61B2018/00267
摘要： The disclosed technology includes basket catheters comprising a generally cylindrical structure having electrodes attached thereto. The disclosed technology can include a structural unit for an end effector comprising a proximal member extending along a longitudinal axis. The proximal member can define a plurality of divergent curvilinear members. Each divergent curvilinear member can define two meander members extending along the longitudinal axis such that the structural unit comprises a plurality of meander members. Each of the plurality of meander members can be connected to a respective convergent curvilinear member of a plurality of convergent curvilinear members. The structural unit can further comprise a distal member connected to the plurality of convergent curvilinear members.
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8.发明公开公开(公告)号：US20240216052A1
公开(公告)日：2024-07-04
申请号：US18509788
申请日：2023-11-15
发明人： Juan RODRIGUEZ SOTO , Mohammad ABBAS , Babak EBRAHIMI , Pieter Emmelius VAN NIEKERK , Shubhayu BASU
IPC分类号： A61B18/14
CPC分类号： A61B18/1492 , A61B2018/00267
摘要： The disclosed technology includes a medical probe includes a substantially cylindrical structure having a proximal circular base, a distal circular base substantially parallel to the proximal circular base, a plurality of spines extending along a longitudinal axis between the proximal circular base and the distal circular base, and one or more strips of flexible circuit substrate coupled to one or more of the plurality of spines defining an internal volume about the longitudinal axis. The plurality of spines include a trifurcation point positioned along at least a portion of the spine and a spine branch extending from the trifurcation point further comprising a bifurcation point. The one or more strips of flexible circuit substrate further include one or more conductive traces disposed on a surface of the substrate.
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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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