公开(公告)号：US20240299090A1

公开(公告)日：2024-09-12

申请号：US18666583

申请日：2024-05-16

Applicant: Boston Scientific Scimed, Inc.

Inventor： Serena Scott ,  Mingxiang Xu ,  Hong Cao ,  Carolina Villarreal ,  Christopher Watson

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

CPC classification number: A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00577 ,  A61B2018/00613 ,  A61B2018/126 ,  A61B2018/1435 ,  A61B2018/1467

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to devices, systems, and methods for controlled volume ablation of tissue. In one example, a catheter may include an elongated member having a distal end extending along a longitudinal axis. A first electrode may extend along the elongated member. The first electrode may have a distal portion arranged on a circumferential surface about the longitudinal axis at the distal end. A second electrode may extend along the elongated member. The second electrode may have a distal portion arranged on the circumferential surface about the longitudinal axis at the distal end of the elongated member. A sheath may be slidably disposed about the elongated member. The sheath may be configured to change position by sliding along the member to insulate a portion of one or both of the first and second electrode.

公开(公告)号：US12004802B2

公开(公告)日：2024-06-11

申请号：US16984779

申请日：2020-08-04

Applicant: Boston Scientific Scimed, Inc.

Inventor： Serena Scott ,  Mingxiang Xu ,  Hong Cao ,  Carolina Villarreal ,  Christopher Watson

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

CPC classification number: A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00577 ,  A61B2018/00613 ,  A61B2018/126 ,  A61B2018/1435 ,  A61B2018/1467

Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to devices, systems, and methods for controlled volume ablation of tissue. In one example, a catheter may include an elongated member having a distal end extending along a longitudinal axis. A first electrode may extend along the elongated member. The first electrode may have a distal portion arranged on a circumferential surface about the longitudinal axis at the distal end. A second electrode may extend along the elongated member. The second electrode may have a distal portion arranged on the circumferential surface about the longitudinal axis at the distal end of the elongated member. A sheath may be slidably disposed about the elongated member. The sheath may be configured to change position by sliding along the member to insulate a portion of one or both of the first and second electrode.

公开(公告)号：US11969199B2

公开(公告)日：2024-04-30

申请号：US16526738

申请日：2019-07-30

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Timothy A. Ostroot

IPC: A61B18/14 ,  A61B18/00 ,  A61B18/08 ,  A61B18/12

CPC classification number: A61B18/082 ,  A61B18/1206 ,  A61B18/14 ,  A61B2018/00029 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00875 ,  A61B2018/126 ,  A61B2018/143 ,  A61B2018/1467 ,  A61B2018/1475 ,  A61B18/1477 ,  A61B2218/002

Abstract: The disclosure relates to systems and methods for irrigated bipolar radiofrequency ablation. Some examples of the system include 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.

公开(公告)号：US20220338917A1

公开(公告)日：2022-10-27

申请号：US17861719

申请日：2022-07-11

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Timothy A. Ostroot

IPC: A61B18/14 ,  A61B18/18

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：US11364070B2

公开(公告)日：2022-06-21

申请号：US16254879

申请日：2019-01-23

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Bruce R. Forsyth ,  Matthew Ryan Dewitt ,  Hong Cao ,  Timothy A. Ostroot

IPC: A61B18/14 ,  A61N1/32 ,  A61M5/158 ,  A61B18/00

Abstract: Novel and versatile apparatuses for delivering one or more of thermal ablation and irreversible electroporation therapies to target tissue. In some examples, a device includes at its distal end a plurality of electrodes that can be advanced or retracted to pierce patient tissue, with a variable position and size shaft electrode provided near the distal end of the device to allow manipulation of therapy fields to achieve various tissue destruction field shapes. A number of method of use examples are described as well.

公开(公告)号：US10722300B2

公开(公告)日：2020-07-28

申请号：US14465597

申请日：2014-08-21

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Ajay Gupta ,  Jeffrey S. Lindquist ,  Paul J. Miller ,  Cass A. Hanson ,  Daniel T. Quillin ,  Hong Cao ,  Kenneth R. Larson

IPC: A61B18/14 ,  B32B37/12 ,  A61B18/00 ,  A61B17/00

Abstract: A balloon for renal nerve modulation is disclosed. The balloon may include a polymer material forming a balloon wall having an outer surface and flexible circuits comprising a base selectively adhered to the exterior surface of the balloon wall. Adhesive is selectively applied to the outer surface of the balloon, to the flexible circuit or to both such that the adhesive is selectively deposited on the at least a portion of the at least two pads or on the at least a portion of the at least two pads and to a portion of the distal spline. The portion of the at least two pads or the portion of the at least two pads and a portion of the distal spline are adhered to the outer surface of the balloon and a remainder of the flexible circuit moves freely with respect to the outer surface of the balloon.

公开(公告)号：US10661092B2

公开(公告)日：2020-05-26

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

IPC: A61B18/04 ,  A61N2/00 ,  A61K41/00 ,  A61K9/00 ,  A61K9/51 ,  A61N1/40 ,  A61K9/14 ,  B82Y5/00 ,  A61F7/12

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.

公开(公告)号：US20200038091A1

公开(公告)日：2020-02-06

申请号：US16526738

申请日：2019-07-30

Applicant: Boston Scientific Scimed, Inc.

Inventor： Hong Cao ,  Timothy A. Ostroot

IPC: A61B18/08 ,  A61B18/12

Abstract: The disclosure relates to systems and methods for irrigated bipolar radiofrequency ablation. Some examples of the system include 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.

公开(公告)号：US20190350591A1

公开(公告)日：2019-11-21

申请号：US16413090

申请日：2019-05-15

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Hong Cao ,  Dongming Hou ,  Hongxia Zeng

IPC: A61B17/12 ,  A61L31/10 ,  A61L33/06

Abstract: An occlusive implant includes an expandable framework that is configured to shift between a collapsed configuration and an expanded configuration. An occlusive member is disposed along at least a portion of the expandable framework. At least part of the occlusive implant is configured to repel fibrinogen. In some cases, the occlusive implant may be configured for placement within a left atrial appendage (LAA) of a patient's heart.

公开(公告)号：US20190254740A1

公开(公告)日：2019-08-22

申请号：US16279438

申请日：2019-02-19

Applicant: Boston Scientific Scimed, Inc.

Inventor： Vijay Koya ,  Elizabeth M. Annoni ,  Bryan A. Clark ,  Bruce Forsyth ,  Hong Cao ,  Matthew R. DeWitt ,  Kyle H. Srivastava

IPC: A61B18/14 ,  A61M37/00 ,  G16H20/17

Abstract: Devices, systems, and methods for regulating glucose levels, including treating diabetes, in accordance with the present disclosure may include a catheter having an expandable or inflatable portion, one or more electrodes disposed on the expandable or inflatable portion of the catheter, wherein the electrodes are configured to deliver energy to a patient's gastrointestinal tract, and a drug delivery mechanism for delivering a drug therapy subsequent to energy delivery by the electrodes. A method for regulating glucose levels according to the present disclosure may include inserting a catheter into a patient's gastrointestinal tract, positioning the catheter in a duodenum of the patient's gastrointestinal tract, expanding or inflating a portion of the catheter in the duodenum, the expandable or inflatable portion of the catheter including electrodes, applying energy to the duodenum via the electrodes to ablate tissue of the duodenum, and delivering a drug therapy to the ablated tissue of the duodenum.