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

IPC: A61B18/14 ,  A61M25/00 ,  A61B18/00

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.

公开(公告)号：US12076070B2

公开(公告)日：2024-09-03

申请号：US16818014

申请日：2020-03-13

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Bruce R. Forsyth ,  Larry D. Canady, Jr. ,  Jonathan Tyler Gorzycki ,  Timothy A Ostroot ,  Hong Cao

IPC: A61B18/12 ,  A61B18/00

CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B2018/00577 ,  A61B2018/00613 ,  A61B2018/1246

Abstract: Methods and devices for performing ablation using time multiplexed waveforms are disclosed. The increased efficacy of monophasic waveforms is combined with the reduced side effects of biphasic waveforms by distributing components of the waveform across over a broader time interval than that typically used in a conventional biphasic waveform. Charge balancing occurs upon completion of therapy delivery within a time period that avoids muscle stimulation, while allowing unbalanced waveforms to be delivered during stimulation.

公开(公告)号：US11944372B2

公开(公告)日：2024-04-02

申请号：US16659111

申请日：2019-10-21

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Larry D. Canady, Jr. ,  Timothy A. Ostroot ,  Bruce R. Forsyth ,  Jonathan Tyler Gorzycki

IPC: A61B18/14 ,  A61B8/12 ,  A61B10/02 ,  A61B18/00 ,  A61B18/18

CPC classification number: A61B18/1492 ,  A61B8/12 ,  A61B18/1477 ,  A61B18/1482 ,  A61B10/0233 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/00577 ,  A61B2018/00613 ,  A61B2018/00636 ,  A61B2018/143 ,  A61B2018/1432 ,  A61B2018/1475 ,  A61B2018/1823 ,  A61B2018/1861

Abstract: One general aspect includes a system for ablation including a catheter including a sheath defining a sheath lumen and a distal end, and an elongate electrode assembly axially moveable within the sheath lumen. The electrode assembly includes a shaft defining a central channel and a distal central channel opening. The electrode assembly also includes an expandable electrode array including two or more electrode elements positioned at the distal portion of the electrode assembly, where the electrode array is moveable between a retracted position contained within the sheath lumen and an expanded position protruding from the sheath.

公开(公告)号：US11931094B2

公开(公告)日：2024-03-19

申请号：US17070649

申请日：2020-10-14

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Bruce R. Forsyth ,  Jonathan Tyler Gorzycki ,  Larry D. Canady, Jr. ,  Hong Cao ,  Timothy A. Ostroot

IPC: A61B18/12 ,  A61B18/14 ,  A61B18/00

CPC classification number: A61B18/1206 ,  A61B18/1492 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/00613 ,  A61B2018/00702 ,  A61B2018/00839 ,  A61B2018/00875 ,  A61B2018/00958 ,  A61B2018/00982

Abstract: Electrosurgical generators having improved functionality and user interface. In an example, the user may modify therapy output parameters without interrupting therapy delivery within a therapy regimen. In an example, the display shows both therapy amplitudes and encountered impedances for a plurality of therapy pulses in different portions of a display. In an example, the electrosurgical generator is operable in a triggered mode using a cardiac signal trigger and provides the operator with an estimate of remaining time that is calculated in light of a calculated cardiac rate.

公开(公告)号：US20230255609A1

公开(公告)日：2023-08-17

申请号：US18138937

申请日：2023-04-25

Applicant: Boston Scientific Scimed Inc.

Inventor： Hong Cao ,  Dongming Hou

IPC: A61B10/04 ,  A61B1/018 ,  A61B8/12 ,  A61B8/00 ,  A61B8/08 ,  A61B1/267

CPC classification number: A61B10/04 ,  A61B1/018 ,  A61B8/12 ,  A61B8/445 ,  A61B8/085 ,  A61B1/2676 ,  A61B8/4494 ,  A61B2010/045

Abstract: Aspects of positioning devices, methods, and systems are disclosed. 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.

公开(公告)号：US20220296292A1

公开(公告)日：2022-09-22

申请号：US17838012

申请日：2022-06-10

Applicant: Boston Scientific Scimed, Inc.

Inventor： Timothy A. Ostroot ,  Hong Cao

IPC: A61B18/14

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.

公开(公告)号：US11382683B2

公开(公告)日：2022-07-12

申请号：US16738532

申请日：2020-01-09

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Timothy A. Ostroot

IPC: A61B18/14 ,  A61B18/18 ,  A61B18/00

Abstract: A variable-length microwave ablation probe is provided. The probe is configured to have a range of resonant frequencies. The probe includes a microwave antenna, an outer conductor, and a cap. The probe further includes a radiation window that is at least partially transparent to microwave energy. The distal boundary of the outer conductor or the proximal boundary of the cap varies in distance from the probe distal end. The probe can have a choke length, an arm length, a radiating portion length, and a cap length. The lengths can each affect the resonant frequency of the antenna. Some examples provide a variable choke length, a variable arm length, a variable radiating portion length, and/or a variable cap length.

公开(公告)号：US11179196B2

公开(公告)日：2021-11-23

申请号：US15872290

申请日：2018-01-16

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Huisun Wang

IPC: A61B18/12 ,  A61B18/14 ,  A61N5/00 ,  A61B18/18 ,  A61B18/00 ,  A61B18/16 ,  A61B90/00

Abstract: Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a medical device for modulating nerves. The medical device may include an elongate shaft having a distal region. Two or more electrodes may be positioned adjacent to the distal end region of the elongate shaft. A control unit may supply power and control algorithms to the electrodes. The control algorithm may allow the electrodes to be operated simultaneously and individually.

公开(公告)号：US20200155227A1

公开(公告)日：2020-05-21

申请号：US16659111

申请日：2019-10-21

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Larry D. Canady, JR. ,  Timothy A. Ostroot ,  Bruce R. Forsyth ,  Jonathan Tyler Gorzycki

IPC: A61B18/14

Abstract: One general aspect includes a system for ablation including a catheter including a sheath defining a sheath lumen and a distal end, and an elongate electrode assembly axially moveable within the sheath lumen. The electrode assembly includes a shaft defining a central channel and a distal central channel opening. The electrode assembly also includes an expandable electrode array including two or more electrode elements positioned at the distal portion of the electrode assembly, where the electrode array is moveable between a retracted position contained within the sheath lumen and an expanded position protruding from the sheath.

公开(公告)号：US10265122B2

公开(公告)日：2019-04-23

申请号：US14180257

申请日：2014-02-13

Applicant: Boston Scientific Scimed, Inc.

Inventor： Huisun Wang ,  Hong Cao

IPC: A61B18/14 ,  A61B18/00 ,  A61B90/00

Abstract: An ablation device is provided for forming one or more lesions on a wall of an artery, such as a renal artery. The device can include an elongate shaft having a proximal end and a distal end. The device may also include a handle disposed at the proximal end, a distal tip including an electrode disposed at the distal end, and one or a plurality of independently expandable splines proximate the distal end.