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公开(公告)号：US20230181250A1
公开(公告)日：2023-06-15
申请号：US18163198
申请日：2023-02-01
Applicant: Boston Scientific Scimed, Inc.
Inventor： Raju Viswanathan
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B2018/00351
Abstract: A system includes a pulse waveform generator and an ablation device coupled to the pulse waveform generator. The ablation device includes at least one electrode configured for ablation pulse delivery to tissue during use. The pulse waveform generator is configured to deliver voltage pulses to the ablation device in the form of a pulsed waveform. The pulsed waveform can include multiple levels of hierarchy, and multiple sets of electrodes can be activated such that their pulsed delivery is interleaved with one another.
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公开(公告)号：US20180172865A1
公开(公告)日：2018-06-21
申请号：US15845901
申请日：2017-12-18
Applicant: Boston Scientific Scimed Inc.
Inventor： Matthew Hein , Daniel J. Foster , Raju Viswanathan
Abstract: A sensor assembly includes a first magnetic field sensor and a second magnetic field sensor. The first magnetic field sensor includes a first substrate and a first elongated magnetic field sensor component extending a first length. The second magnetic field sensor includes a second substrate and a second elongated magnetic field sensor component extending a second length that is shorter than the first length. The first magnetic field sensor has a greater sensitivity to a sensed magnetic field than the second magnetic field sensor.
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公开(公告)号：US12150698B2
公开(公告)日：2024-11-26
申请号：US17150164
申请日：2021-01-15
Applicant: Boston Scientific Scimed, Inc.
Inventor： Raju Viswanathan , Gary L. Long
Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes an inflatable member and at least one electrode for focal ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.
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公开(公告)号：US12121720B2
公开(公告)日：2024-10-22
申请号：US17744019
申请日：2022-05-13
Applicant: Boston Scientific Scimed, Inc.
Inventor： William Bowers , Raju Viswanathan , Gary Long
CPC classification number: A61N1/327 , A61B18/12 , A61B18/1233 , A61B18/1492 , A61B2018/0016 , A61B2018/00267 , A61B2018/00577 , A61B2018/00613 , A61B2018/00654 , A61B2018/00702 , A61B2018/00708 , A61B2018/00827 , A61B2018/00988 , A61B2018/124 , A61B2018/1407 , A61B2018/1467 , A61N1/05 , A61N1/362
Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy that may be coupled to an ablation device including at least one electrode for ablation pulse delivery to tissue. The signal generator may generate and deliver voltage pulses to the ablation device in the form of a pulse waveform in a predetermined sequence where the signal generator may independently configure a set of electrodes of an ablation device. The signal generator may further perform active monitoring of a set of electrode channels and discharge excess energy using the set of electrode channels.
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公开(公告)号：US11738200B2
公开(公告)日：2023-08-29
申请号：US16877705
申请日：2020-05-19
Applicant: Boston Scientific Scimed, Inc.
Inventor： Raju Viswanathan
Abstract: Systems, apparatus, and methods for ablation therapy are described herein, with a processor for confirming pacing capture or detecting ectopic beats. An apparatus includes a processor for receiving cardiac signal data captured by a set of electrodes, extracting a sliding window of the cardiac signal data, identifying a peak frequency over a subrange of frequencies associated with the extracted sliding window, detecting ectopic activity based at least on a measure of the peak frequency over the subrange of frequencies, in response to detecting ectopic activity, sending an indication of ectopic activity to a signal generator configured to generate pulsed waveforms for cardiac ablation such that the signal generator is deactivated or switched off from generating the pulsed waveforms. An apparatus can further include a processor for confirming pacing capture of the set of pacing pulses based on cardiac signal data.
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Patent Agency Ranking
公开(公告)号：US20180168738A1
公开(公告)日：2018-06-21
申请号：US15838952
申请日：2017-12-12
Applicant: Boston Scientific Scimed Inc.
Inventor： Raju Viswanathan , Jonathan Allen
CPC classification number: A61B34/20 , A61B5/062 , A61B5/7217 , A61B2034/2051 , A61M25/0127
Abstract: A method uses an electromagnetic tracking system, including a number of field transmitters and at least one receiver, to determine location information associated with a medical device. The method includes transmitting a set of electromagnetic signals, each signal having a frequency that is different than a frequency associated with each of the other signals, where each signal corresponds to a sum of sinusoidal functions, each of which includes an amplitude and a frequency. A field signal is received, and includes an undistorted field component and a distortion component. The amplitudes and frequencies of the sinusoidal functions are selected such that the distortion component includes a residual error arising from terms of at least a specified order in frequency. Field components corresponding to the field transmitters are extracted from the received signal, and the location information is determined based on the field components.
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公开(公告)号：US20250082401A1
公开(公告)日：2025-03-13
申请号：US18957275
申请日：2024-11-22
Applicant: Boston Scientific Scimed, Inc
Inventor： Raju Viswanathan , Gary L. Long
Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes an inflatable member and at least one electrode for focal ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.
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公开(公告)号：US20250072962A1
公开(公告)日：2025-03-06
申请号：US18951452
申请日：2024-11-18
Applicant: Boston Scientific Scimed, Inc.
Inventor： Raju Viswanathan
Abstract: A system includes a pulse waveform generator and an ablation device coupled to the pulse waveform generator. The ablation device includes at least one electrode configured for ablation pulse delivery to tissue during use. The pulse waveform generator is configured to deliver voltage pulses to the ablation device in the form of a pulsed waveform. The pulsed waveform can include multiple levels of hierarchy, and multiple sets of electrodes can be activated such that their pulsed delivery is interleaved with one another.
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公开(公告)号：US20250065116A1
公开(公告)日：2025-02-27
申请号：US18920887
申请日：2024-10-19
Applicant: Boston Scientific Scimed, Inc.
Inventor： William Bowers , Raju Viswanathan , Gary L. Long
Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy that may be coupled to an ablation device including at least one electrode for ablation pulse delivery to tissue. The signal generator may generate and deliver voltage pulses to the ablation device in the form of a pulse waveform in a predetermined sequence where the signal generator may independently configure a set of electrodes of an ablation device. The signal generator may further perform active monitoring of a set of electrode channels and discharge excess energy using the set of electrode channels.
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公开(公告)号：US20250064509A1
公开(公告)日：2025-02-27
申请号：US18810160
申请日：2024-08-20
Applicant: Boston Scientific Scimed, Inc.
Inventor： Raju Viswanathan , Gary Long , Brendan Early Koop
Abstract: An electroporation catheter for ablation of cardiac tissue is disclosed. The electroporation catheter includes an elongated shaft having a proximal end and an opposite distal end. The elongated shaft defines an axis. An electrode assembly is coupled to and extends distally from the distal end of the elongated shaft. The electrode assembly is transitionable between a collapsed state and an expanded state. The electrode assembly includes conductive struts that define a spherical shape in the expanded state having a proximal portion coupled to the elongated shaft, a central portion having a maximum radial dimension and a distal portion opposite the elongated shaft. A proximal insulation portion is disposed on the proximal portion of the electrode assembly surrounding each of the plurality of conductive struts. The proximal insulator portion extends from the proximal end to at least the central portion.
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