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公开(公告)号：US20240032873A1
公开(公告)日：2024-02-01
申请号：US18483356
申请日：2023-10-09
CPC分类号： A61B5/721 , A61B5/6857 , A61B5/6859 , A61B5/287 , A61B2562/0209 , A61M25/0068
摘要： An apparatus includes a catheter, a sensor, a first pair of wire segments, an artifact reduction feature, and a correction module. The sensor is positioned at a distal end of the catheter and is configured to generate a sensor signal. The first pair of wire segments is coupled with the sensor and extends along the length of the catheter. The artifact reduction feature is positioned proximate to the sensor and includes a second pair of wire segments. The correction module is configured to subtract motion-induced artifacts from signals received from the first pair of wire segments, based on motion-induced artifacts from signals received from the second pair of wire segments, to thereby provide a corrected sensor signal.
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公开(公告)号：US11883093B2
公开(公告)日：2024-01-30
申请号：US17360243
申请日：2021-06-28
发明人： Meir Bar-Tal , Abraham Berger , Avri Hazan , Daniel Osadchy
CPC分类号： A61B18/1492 , A61B34/10 , A61B2018/00791
摘要： A method, consisting of modeling physical parameters representative of a probe in proximity to body tissue during an ablation procedure performed by the probe. The method also includes measuring a subgroup of the physical parameters during a non-ablation stage of the ablation procedure so as to generate measured non-ablative values of the subgroup, and measuring the subgroup of the physical parameters during an ablation stage of the ablation procedure so as to generate measured ablative values of the subgroup. In response to the modeling, the method includes generating calculated non-ablative values of the subgroup for the non-ablation stage, and generating calculated ablative values of the subgroup for the ablation stage. The method compares the measured non-ablative values with the calculated non-ablative values, and compares the measured ablative values with the calculated ablative values, so as generate optimal values of the physical parameters.
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公开(公告)号：US11878095B2
公开(公告)日：2024-01-23
申请号：US17350101
申请日：2021-06-17
发明人： Christopher Thomas Beeckler , Joseph Thomas Keyes , Kevin Justin Herrera , Alexander David Squires , Kevin Mark Okarski
CPC分类号： A61M25/0147 , A61M25/005 , A61M25/0136 , A61M25/1002 , A61M25/1018 , A61M25/104
摘要： A medical probe includes a shaft, an expandable membrane and a probe maneuvering assembly (PMA). The shaft is configured for insertion into a cavity of an organ of a patient. The PMA is located inside the expandable membrane and includes a first elastic element, which is fitted along a longitudinal axis of the PMA and is configured to expand the membrane by shortening the PMA, and to collapse the membrane by elongating the PMA. The PMA further includes a second elastic element, which surrounds at least a portion of the first elastic element and is configured to deflect the membrane relative to the longitudinal axis.
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公开(公告)号：US11872358B2
公开(公告)日：2024-01-16
申请号：US17174135
申请日：2021-02-11
发明人： Ricardo Padilla , Homero Padilla , Julie Bui , Mario Solis , Thomas Selkee , Jose Jimenez , Keshava Datta , Fernando Salazar
CPC分类号： A61M25/0147 , A61B5/287 , A61B5/6857 , A61B18/1492 , A61M25/005 , A61B2017/00318 , A61B2018/00196 , A61B2018/00375 , A61B2018/00577 , A61B2018/00839 , A61B2018/1435 , A61B2218/002 , A61B2562/0209 , A61B2562/043 , A61M2025/015 , A61M2205/0266
摘要： A catheter with a variable circular loop is responsive to a contraction wire for increasing the coiling of the circular loop. The shape of the loop is supported by an elongated member, wherein a radially constrictive sleeve confines the contraction wire to extends immediately alongside the length of elongated member so as to improve uniformity and minimize misshaping of the loop during contraction.
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公开(公告)号：US20240001081A1
公开(公告)日：2024-01-04
申请号：US18469535
申请日：2023-09-18
发明人： Ricardo PADILLA , Homero PADILLA , Julie BUI , Mario SOLIS , Thomas SELKEE , Jose JIMENEZ , Keshava DATTA , Fernando SALAZAR
CPC分类号： A61M25/0147 , A61B5/6857 , A61B18/1492 , A61M25/005 , A61B5/287 , A61B2018/00375
摘要： A catheter with a variable circular loop is responsive to a contraction wire for increasing the coiling of the circular loop. The shape of the loop is supported by an elongated member, wherein a radially constrictive sleeve confines the contraction wire to extends immediately alongside the length of elongated member so as to improve uniformity and minimize misshaping of the loop during contraction.
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公开(公告)号：US20240000497A1
公开(公告)日：2024-01-04
申请号：US18335932
申请日：2023-06-15
发明人： Tzachi Levy , Vitaliy Putra , Kruti Shah , Tonima Quabili , Paul A. Suárez , Maria Duarte , Erica E. Lovejoy , Kokou A. Amefia , Debby E. Highsmith , Eajer Toh
IPC分类号： A61B18/14
CPC分类号： A61B18/14 , A61B2018/00875
摘要： A transseptal puncture system and method uses a guiding instrument, and an atraumatic puncture instrument longitudinally movable therein, with a first electrode configured for ablation and a second electrode electrically insulated from the first electrode. An impedance monitoring module is configured to measure at least an impedance at the second electrode, and an electrical generator is configured to selectively apply electrical energy to the first electrode based at least in part on the measured impedance at the second electrode. Moreover, impedance measurements at the first and second electrodes are used to determine relative positions of the instruments in the approach, contact, ablation and puncture of the septum.
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公开(公告)号：US11857307B2
公开(公告)日：2024-01-02
申请号：US17883342
申请日：2022-08-08
发明人： Gal Hayam , Michael Timofeyev , Tal Haim Bar-On , Amardeep Saluja
IPC分类号： A61B5/06 , A61B34/20 , A61B5/0538 , G06T17/20 , A61B5/283 , A61B5/364 , A61B5/287 , A61B5/00 , A61B18/12 , A61B18/00 , A61B18/14
CPC分类号： A61B5/062 , A61B5/0042 , A61B5/0044 , A61B5/0538 , A61B5/283 , A61B5/287 , A61B5/364 , A61B5/4836 , A61B5/7235 , A61B5/743 , A61B18/12 , A61B34/20 , G06T17/20 , A61B5/6847 , A61B2018/00351 , A61B2018/00577 , A61B2018/00595 , A61B2018/1467 , A61B2034/2046 , A61B2576/023 , G06T2210/41
摘要： A probe generates location signals, and has an electrode at a distal end that acquires from heart chamber surface positions electrical signals due to a conduction wave traversing the surface. A processor derives LATs from the electrical signals, calculates a first time difference between LATs at a first pair of positions and a second time difference between LATs at a second pair of positions. The processor calculates first and second LAT-derived distances as products of the first and second time differences with a conduction wave velocity, identifies an arrhythmia origin at a surface location where a first difference in distances from the location to the first pair of the positions is equal to the first LAT-derived distance, and a second difference in distances from the location to the second pair of the positions is equal to the second LAT-derived distance, and marks the origin on a surface representation.
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公开(公告)号：US11857251B2
公开(公告)日：2024-01-02
申请号：US17094915
申请日：2020-11-11
发明人： Matthew Hitzeroth , Daniele Ghidoli , Steven Daniel , Corey Rousu
CPC分类号： A61B18/1492 , A61B5/287 , A61B5/367 , A61B8/4494 , A61B2018/00351 , A61B2018/00577
摘要： A flexible circuit including a first segment including a base section of the flexible circuit; a second segment including a lateral wall section; a transition section between the base and lateral wall sections, the transition section being at least partially positioned adjacent a shared region of the base and lateral wall sections; and one or more electrode regions including a respective electrode, the one or more electrode regions being positioned at least partially in the transition section and the second segment.
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公开(公告)号：US20230404644A1
公开(公告)日：2023-12-21
申请号：US17841784
申请日：2022-06-16
CPC分类号： A61B18/1206 , H03K17/6285 , A61B2018/00613
摘要： A switching assembly for transferring trains of pulses, including a first terminal and a second terminal. A first plurality of first relays is connected in parallel, and have first contacts connected to the first assembly terminal, and second contacts. A first capacitor is connected in parallel with the first relays. A second plurality of second relays is connected in parallel, and have third contacts, and fourth contacts connected to the second assembly terminal. A second capacitor is connected in parallel with the second relays. A connection connects the second contacts to the third contacts. The pulses have amplitudes of at least 2 kilovolts. On activation of the first and second relays the first and second contacts connect and the third and fourth contacts connect, so that the first and second assembly terminals connect. On deactivation of the first and second relays the first and second assembly terminals disconnect.
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公开(公告)号：US11844616B2
公开(公告)日：2023-12-19
申请号：US16986871
申请日：2020-08-06
发明人： Refael Itah , Aharon Turgeman , Daniel Melby , Gal Hayam , Tal Bar-on
CPC分类号： A61B5/287 , A61B5/339 , A61B5/6859 , A61B5/745
摘要： Methods, apparatus, and systems for medical procedures are disclosed herein and include sensing a plurality of tissue electrical potentials at an organ area of an organ, by one or more electrodes on a catheter, determining a number of peak electrical potentials from the plurality of first tissue electrical potentials such that the a peak electrical potential exceeds a potential threshold, determining a first visual characteristic based on the number of peak electrical potential and displaying a rendering of the organ comprising the organ area such that the rendering of the first organ area comprises the first visual characteristic.
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