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公开(公告)号：US11517372B2
公开(公告)日：2022-12-06
申请号：US16712817
申请日：2019-12-12
Inventor： Stephan P. Miller , Don Curtis Deno , Saurav Paul , Liane R. Teplitsky
Abstract: A method and system for assessing lesion formation in tissue is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire values for first and second components of a complex impedance between the electrode and the tissue, and to calculate an index responsive to the first and second values. The ECU is further configured to process the ECI to assess lesion formation in the tissue.
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公开(公告)号：US11478300B2
公开(公告)日：2022-10-25
申请号：US16678475
申请日：2019-11-08
Inventor： Huisun Wang , Jeremy D. Dando , Dale E. Just , Allen P. Moore
Abstract: The present invention pertains to multiple piece irrigated ablation electrode assemblies wherein the irrigation channels are insulated or separated from at least one temperature sensing mechanism within the distal portion of the electrode assembly. The present invention further pertains to methods for improved assembly and accurate measurement and control of the electrode temperatures while effectively irrigating the device and target areas.
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公开(公告)号：US11331136B2
公开(公告)日：2022-05-17
申请号：US15589652
申请日：2017-05-08
Inventor： Saurav Paul , Troy T. Tegg , Chou Thao , Harry A. Puryear
Abstract: An electrode for use on a medical device is disclosed. The electrode may have a main body of electrically conductive material extending along an axis and may have a proximal end and a distal end. The electrode may also include a magnetic resonance imaging (MRI) tracking coil disposed in the body. The MRI tracking coil may comprise electrically insulated wire. A catheter including an electrode, as well as a method for determining the location of an electrode, are also disclosed.
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公开(公告)号：US11246535B2
公开(公告)日：2022-02-15
申请号：US16216738
申请日：2018-12-11
Inventor： Dale E. Just , Troy T. Tegg , Theodore A. Johnson
Abstract: An electrode support structure assembly is provided comprising an electrode support structure including a plurality of splines. Each of the plurality of splines can have a proximal end portion and a distal end portion. The assembly further comprises a first element defining an axis and comprising an outer surface. The outer surface comprises a plurality of slots configured to receive the distal end portion of each of the plurality of splines. The first element is configured such that the distal end portion of each of the plurality of splines may move with respect to each slot. In accordance with some embodiments, the distal end portion of each of the plurality of splines comprises a section configured for engagement with the first element, wherein the section comprises a shoulder.
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公开(公告)号：US20220023594A1
公开(公告)日：2022-01-27
申请号：US17397150
申请日：2021-08-09
Inventor： Sameer Pai
IPC: A61M25/01
Abstract: Catheter curve shape struts for steerable medical devices such as catheters are disclosed. These struts may not only help shape a steerable portion of a medical device (e.g., a distal portion of a catheter), but also may help to return a steered or deflected portion of the medical device to an uncurved configuration when it is no longer desirable or necessary to steer or deflect the medical device. These struts may include first and second pluralities of complementary, staggered cutout regions. When used in a catheter that is deployed via an introducer, at least some configurations of the catheter curve shape strut can enable the catheter to be rotated about its longitudinal axis, even when the distal deflectable section is in a curved configuration and inside of the introducer.
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Patent Agency Ranking
公开(公告)号：US20220000549A1
公开(公告)日：2022-01-06
申请号：US17379801
申请日：2021-07-19
Inventor： Huisun Wang , Sacha C. Hall
IPC: A61B18/14
Abstract: The invention relates to ablation catheter electrodes that solve in part the problem of tissue charring during radiofrequency ablation. The electrode assemblies of the invention include passageways that lead from the inner lumen of the assemblies to the surface of the assemblies, wherein the passageways have a smooth conjunction with the outer surface. These smooth conjunctions comprise rounded edges or are chamfered. In the case of rounded edges, the rounded edges can have fixed radii of about 0.002″ to about 0.008″.
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公开(公告)号：US11154355B2
公开(公告)日：2021-10-26
申请号：US16369825
申请日：2019-03-29
Inventor： Sacha C. Hall , Dale E. Just , Alan de la Rama , Cary Hata
Abstract: In various embodiments, a catheter comprising an expandable electrode assembly or basket is provided. In specific embodiments, the basket is particularly useful for mapping electrical activity at one or more locations within the heart. The basket can comprise a plurality of bendable or deflectable arms. At least one of the arms may have varied flexibility over its length in the form of one or more discontinuities of stiffness or flexibility at an elbow region or other variances in flexibility over the arm's length. Such variance in flexibility may allow the arm to assume a different bent configuration or respond to external factors more positively than possible with an arm having a static or near static flexibility or stiffness over its length.
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公开(公告)号：US11154350B2
公开(公告)日：2021-10-26
申请号：US14198009
申请日：2014-03-05
Inventor： Ron Phan Nguyen , Terry Sterrett , Kevin Herrera
Abstract: The present disclosure relates generally to catheter devices, including irrigated and non-irrigated ablation catheters. More specifically, this disclosure relates to irrigated ablation catheters including an irrigation lumen having at least one electronic device at least partially disposed therein. In many embodiments, the irrigation lumen further includes at least one sideport. In some embodiments, the electronic device has a distal end extending out of the irrigation lumen and into an electrode tip assembly. In some embodiments, a proximal end of the electronic device extends through the sideport in the irrigation lumen.
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公开(公告)号：US10945633B2
公开(公告)日：2021-03-16
申请号：US15412100
申请日：2017-01-23
Inventor： Luke Y. Chen , Eric S. Olson
IPC: A61B5/00 , A61B5/06 , A61B90/00 , A61B34/20 , A61B34/10 , A61B5/042 , A61B6/00 , A61B90/90 , A61B17/00
Abstract: A method for providing a localization system with detailed information regarding a catheter's construction, while at the same time preventing operator input errors, for use in a three-dimensional localization field, including providing a catheter having at least one feature, providing a catheter catalog for use by the localization system, wherein the catheter catalog comprises reference data relating to features of the catheter, placing the catheter into the localization field, creating a map with the localization field, locating the catheter on the map, and correlating features of the catheter within the localization field with measurements made by the localization system when the feature is at various locations.
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公开(公告)号：US10939964B2
公开(公告)日：2021-03-09
申请号：US15609534
申请日：2017-05-31
Inventor： Daniel J. Potter , Lev A. Koyrakh
Abstract: Systems for detecting when catheter electrodes enter into and exit from an introducer are disclosed. In one form, a system detects a relative position of a catheter (comprising a marker band and an electrode) and an introducer (comprising a proximity sensor adapted to sense the marker band), while the catheter and introducer are in a human body. The system may comprise an electronic control unit to analyze signals from the catheter and/or the introducer, to determine whether the catheter electrode is within the introducer; and to disregard data collected from the electrode when that electrode is in the introducer. The sensor may be on the catheter and the sensed element may be on the introducer. The sensed element may comprise one or several marker bands. A marker band may be applied during the manufacture of a medical device or during its use and is any element capable of electromagnetic detection.
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