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公开(公告)号：US11992260B2
公开(公告)日：2024-05-28
申请号：US17216871
申请日：2021-03-30
Applicant: Boston Scientific Scimed, Inc.
Inventor： Timothy A. Ostroot , Bruce R. Forsyth , Hong Cao , Larry D. Canady, Jr. , Jonathan Tyler Gorzycki
CPC classification number: A61B18/1492 , A61B18/1206 , G16H40/67 , A61B2018/00577 , A61B2018/00779 , A61B2018/00827 , A61B2018/00892 , A61B2018/1467
Abstract: Ablation probes and methods of their use. Example probes include probe circuits configured to provide identifying information for the probe itself. The probe circuits may sense probe usage and/or age to determine probe end of life (EOL). In response to EOL, the probe circuit generates an output indicating EOL. The probe electronic circuit may also be configured to monitor probe usage via impedance or other features, independent of such operation by an ablation pulse generator.
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公开(公告)号：US11957409B2
公开(公告)日：2024-04-16
申请号：US16717113
申请日：2019-12-17
Applicant: Boston Scientific Scimed, Inc.
Inventor： Hong Cao , Timothy A. Ostroot
CPC classification number: A61B18/1815 , A61B2018/00035 , A61B2018/00577 , A61B2018/183 , A61B2018/1869
Abstract: A microwave ablation probe including a probe body including a shielded portion and a radiation window that is at least partially transparent to microwave energy. The shielded portion includes a cannula, a coaxial cable within the probe body, and an antenna comprising a radiating portion for emission of microwave energy at a distal portion of the probe body, wherein the radiating portion is aligned with the radiation window. The probe body defines an irrigation path configured to carry cooling fluid to and from the distal portion of the probe body. At least one wall defining the irrigation path comprises a heat exchange surface having an average radius, wherein a surface area of the heat exchange surface is larger than a surface area of a smooth surface with a radius equal to the average radius.
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公开(公告)号：US11633176B2
公开(公告)日：2023-04-25
申请号：US15665057
申请日：2017-07-31
Applicant: Boston Scientific Scimed, Inc.
Inventor： Hong Cao , Dongming Hou
Abstract: Embodiments include devices, methods, and systems for positioning devices. An exemplary method comprises: moving a distal end of a tube into a body, the tube including a lumen and a shaft in the lumen, the shaft having a transducer; sending a first signal to the transducer; passing, with the transducer, in response to the first signal, a wave energy into the body; receiving, with the transducer, a reflected portion of the wave energy; generating, with the transducer, a second signal in response to the reflected portion of the wave energy; determining, with a processor, an indicia of the body in response to the second signal; and identifying, with the indicia, a targeted issue in the body; positioning the distal end of the tube at the targeted tissue in response to the indicia; and removing a portion of the targeted tissue with the distal end of the tube.
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公开(公告)号：US20220370114A1
公开(公告)日：2022-11-24
申请号：US17752612
申请日：2022-05-24
Applicant: Boston Scientific Scimed Inc.
Inventor： Cathy Condie , Timothy A. Ostroot , Hong Cao , Andrew K. Zachman
Abstract: Disclosed herein are devices, systems, and methods for monitoring a formation of an iceball at a cryoablation needle. An example method includes receiving an impedance from at least one electrode in an electrode arrangement that is disposed at a cryoablation needle distal portion. The electrode arrangement is configured to engage the iceball as the iceball is formed over the cryoablation needle distal portion so as to cause a change in the impedance. The example method includes determining one or more physical attributes of the iceball based on a rate of the change in the impedance.
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公开(公告)号：US11382682B2
公开(公告)日：2022-07-12
申请号：US16695622
申请日：2019-11-26
Applicant: Boston Scientific Scimed, Inc.
Inventor： Timothy A. Ostroot , Hong Cao
Abstract: The disclosure relates to systems and methods for irrigated bipolar radiofrequency ablation. The system includes an ablation probe that includes an elongate inner electrode assembly and an elongate outer electrode assembly. An irrigation path for irrigation fluid flow is defined between the outer surface of the inner electrode assembly and the outer surface of the outer electrode assembly. The irrigation path enables cooling fluid to be circulated within the probe body, cooling the outer electrode during ablation.
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Patent Agency Ranking
公开(公告)号：US10695124B2
公开(公告)日：2020-06-30
申请号：US14338085
申请日：2014-07-22
Applicant: Boston Scientific Scimed, Inc.
Inventor： Joel N. Groff , Patrick A. Haverkost , Martin R. Willard , Hong Cao , Daniel J. Horn , Kenneth R. Larson , John Jianhua Chen
Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a catheter shaft. An expandable balloon may be coupled to the catheter shaft. The balloon may be capable of shifting between a folded configuration and an expanded configuration. A support structure may be coupled to the balloon. The support structure may be capable of shifting the balloon toward the folded configuration. A plurality of elongate flexible electrode assemblies may be disposed on the balloon. The elongate flexible electrode assemblies may be oriented at an angle relative to a longitudinal axis of the balloon.
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公开(公告)号：US10271898B2
公开(公告)日：2019-04-30
申请号：US14520937
申请日：2014-10-22
Applicant: Boston Scientific Scimed, Inc.
Inventor： Hong Cao , Kenneth R. Larson
Abstract: A medical device for sympathetic nerve ablation may include a catheter shaft, an expandable member disposed on or coupled to the catheter shaft, and a plurality of elongate electrode assemblies each constructed as a flexible circuit having a plurality of layers. The expandable member may be configured to shift between an unexpanded configuration and an expanded configuration. The plurality of electrode assemblies may be disposed on an outer surface of the expandable member. Each of the plurality of electrode assemblies may include a temperature sensor within the plurality of layers.
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公开(公告)号：US09833283B2
公开(公告)日：2017-12-05
申请号：US14314848
申请日：2014-06-25
Applicant: Boston Scientific Scimed, Inc.
Inventor： Cass A. Hanson , Hong Cao , John Jianhua Chen , Derek C. Sutermeister , Daniel T. Quillin , Gary J. Pederson, Jr.
CPC classification number: A61B18/1492 , A61B2018/0022 , A61B2018/00404 , A61B2018/00434 , A61B2018/00511 , A61B2018/00577 , A61B2018/00797 , A61B2018/124 , A61B2018/1467 , A61B2018/162 , A61B2018/165
Abstract: Medical devices and methods for making and using the same are disclosed. An example medical device may include a medical device for renal nerve ablation. The medical device may include an elongate shaft having a distal region. An expandable member may be coupled to the distal region. A plurality of electrodes may be coupled to the expandable member and a single conductive member may be coupled to each electrode. Where one of the plurality of electrodes is active, the remaining electrodes may be inactive and act as ground or return electrodes. The electrode of the plurality of electrodes that is active may change over time.
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公开(公告)号：US20170100603A1
公开(公告)日：2017-04-13
申请号：US15286901
申请日：2016-10-06
Applicant: Boston Scientific Scimed, Inc.
Inventor： Hong Cao , Martin R. Willard , Patrick A. Haverkost , Derek C. Sutermeister
Abstract: The disclosure pertains to mixtures of LaFeSiH magnetic nanoparticles having different Curie temperatures useful for improved inductive hyperthermia efficiency, injectable formulations containing the nanoparticles, and methods of raising the temperature of selected cells using the nanoparticles.
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公开(公告)号：US12114919B2
公开(公告)日：2024-10-15
申请号：US16660498
申请日：2019-10-22
Applicant: Boston Scientific Scimed, Inc.
Inventor： Bruce R. Forsyth , Larry D. Canady, Jr. , Hong Cao , Timothy A. Ostroot , Jonathan Tyler Gorzycki
CPC classification number: A61B18/1492 , A61B18/14 , A61M25/0023 , A61B2018/0016 , A61B2018/00196 , A61B2018/00202 , A61B2018/00577 , A61B2018/00613 , A61B2018/00875 , A61B2018/143 , A61B2018/1435 , A61B2018/144 , A61B2018/1467 , A61B2018/1475 , A61M2025/0024
Abstract: A system for ablation is described herein including an inner electrode assembly with an inner elongate shaft and a distal electrode, an outer electrode assembly having an outer elongate shaft and a proximal electrode, wherein the outer electrode assembly defines a central passage configured to slidably receive the inner electrode assembly, wherein the distal electrode or the proximal electrode is axially moveable with respect to the other, and an energy source configured to be electrically connected to the distal electrode and the proximal electrode and configured to deliver a pulsed electric field (PEF). One of the distal electrode and proximal electrode is part of a first expandable electrode array comprising two or more electrode elements moveable between an unexpanded position and an expanded position.
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