公开(公告)号：US11813443B2

公开(公告)日：2023-11-14

申请号：US16295709

申请日：2019-03-07

Applicant: Boston Scientific Scimed, Inc.

Inventor： Brian J. Hanson ,  Steven R. Larsen ,  Benjamin Breidall ,  Joseph A. Kronstedt ,  Paul F. Chouinard

IPC: A61M60/419 ,  A61M60/13 ,  A61M60/139 ,  A61M60/416 ,  A61M60/216 ,  A61M60/827 ,  A61M60/825

CPC classification number: A61M60/419 ,  A61M60/13 ,  A61M60/139 ,  A61M60/216 ,  A61M60/416 ,  A61M60/825 ,  A61M60/827

Abstract: Devices and methods for assisting blood flow are provided. The device includes a housing with an inlet and an outlet, and a fluid barrier separating the housing into a first section containing the inlet and outlet, and a second section. The device also includes an impeller shaft coupled to an impeller and a first magnet in the first section of the housing, and a drive shaft coupled to a second magnet in the second section of the housing. The first and second magnets are arranged such that rotation of the drive shaft rotates the second magnet causing rotation of the first magnet, which drives the impeller.

公开(公告)号：US20250065105A1

公开(公告)日：2025-02-27

申请号：US18949170

申请日：2024-11-15

Applicant: Boston Scientific Scimed, Inc.

Inventor： Travis J. Schauer ,  Benjamin Breidall ,  Daniel H. VanCamp

IPC: A61M60/825 ,  A61M60/148 ,  A61M60/422

Abstract: A bearing assembly is configured to retain an end of an impeller of a blood pump and includes a thrust plate having a distal-facing surface and an impeller bearing surface configured to be disposed adjacent the distal-facing surface such that a gap is defined between the distal-facing surface of the thrust plate and the impeller bearing surface. The impeller bearing surface includes at least one washout blade disposed thereon and configured to facilitate blood flow through the gap.

公开(公告)号：US12029890B2

公开(公告)日：2024-07-09

申请号：US17137175

申请日：2020-12-29

Applicant: Boston Scientific Scimed, Inc.

Inventor： Travis J. Schauer ,  Joseph Alan Kronstedt ,  Benjamin Breidall ,  Megan Johnson

IPC: A61M60/419 ,  A61M60/13 ,  A61M60/216 ,  A61M60/221 ,  F04D3/00 ,  F04D13/02

CPC classification number: A61M60/419 ,  A61M60/13 ,  A61M60/216 ,  A61M60/221 ,  F04D3/005 ,  F04D13/024 ,  F04D13/027 ,  A61M2205/0216

Abstract: Various aspects of the present disclosure are directed to apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include an impeller, a drive shaft, a driven magnet assembly, a driving magnet assembly, and a flux enhancer.

公开(公告)号：US11577067B2

公开(公告)日：2023-02-14

申请号：US17061835

申请日：2020-10-02

Applicant: Boston Scientific Scimed Inc

Inventor： Benjamin Breidall ,  Daniel H. VanCamp ,  Travis J. Schauer

IPC: A61M60/818 ,  A61M60/419

Abstract: A bearing assembly is configured to retain a distal end of an impeller of a blood pump, where the impeller includes a drive shaft. The bearing assembly includes a pivot member coupled to a distal end of the drive shaft; a distal bearing cup having a proximally-facing surface configured to engage at least a portion of a distal section of the pivot member; and a sleeve bearing disposed around at least a portion of a proximal section of the pivot member.

公开(公告)号：US11565103B2

公开(公告)日：2023-01-31

申请号：US16657246

申请日：2019-10-18

Applicant: Boston Scientific Scimed Inc.

Inventor： Laszlo T. Farago ,  Daniel H. VanCamp ,  Benjamin Breidall ,  Joseph A. Kronstedt

IPC: A61M60/824 ,  F16C33/10 ,  F04D13/02 ,  F04D29/046 ,  F16C17/08 ,  A61M60/818 ,  A61M60/216 ,  A61M60/422 ,  A61M60/508

Abstract: A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.

公开(公告)号：US20210220637A1

公开(公告)日：2021-07-22

申请号：US17137185

申请日：2020-12-29

Applicant: Boston Scientific Scimed Inc.

Inventor： Nathan Edwards ,  Benjamin Breidall ,  Joseph A. Kronstedt

IPC: A61M60/419 ,  F04D13/06 ,  A61M60/216 ,  A61M60/818

Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include a drive shaft coupled to an impeller, a driven magnet assembly coupled to at least one of the drive shaft and the impeller, and a driving coil assembly configured to drive the driven magnet assembly.

公开(公告)号：US20190247614A1

公开(公告)日：2019-08-15

申请号：US16276971

申请日：2019-02-15

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Matthew Hart ,  Corey N. Meyer ,  Derek Kenneth Larson ,  Benjamin Breidall ,  Kevin Martin ,  Victoria Velez ,  Nathan Adams

IPC: A61M25/00 ,  A61M25/06 ,  A61B17/34 ,  A61B90/00

CPC classification number: A61M25/0023 ,  A61B17/3439 ,  A61B90/03 ,  A61B90/39 ,  A61B2090/3966 ,  A61M25/0052 ,  A61M25/0662 ,  A61M2025/0024 ,  A61M2025/0681

Abstract: An example introducer and method of use is disclosed. The example introducer sheath includes a shaft including a tubular portion, an expandable portion coupled to the tubular portion and a longitudinal axis. Additionally, the expandable portion includes a first pair of leaflets and a second pair of leaflets and both the first pair of leaflets and the second pair of leaflets extend along the longitudinal axis. Additionally, the second pair of leaflets are spaced radially inward of an inner surface of the first pair of leaflets and the expandable portion is designed to shift between a first configuration and a second expanded configuration.

公开(公告)号：US12171994B2

公开(公告)日：2024-12-24

申请号：US17016961

申请日：2020-09-10

Applicant: Boston Scientific Scimed Inc.

Inventor： Travis J. Schauer ,  Benjamin Breidall ,  Daniel H. VanCamp

IPC: A61M60/825 ,  A61M60/148 ,  A61M60/422

Abstract: A bearing assembly is configured to retain an end of an impeller of a blood pump and includes a thrust plate having a distal-facing surface and an impeller bearing surface configured to be disposed adjacent the distal-facing surface such that a gap is defined between the distal-facing surface of the thrust plate and the impeller bearing surface. The impeller bearing surface includes at least one washout blade disposed thereon and configured to facilitate blood flow through the gap.

公开(公告)号：US11752323B2

公开(公告)日：2023-09-12

申请号：US17137185

申请日：2020-12-29

Applicant: Boston Scientific Scimed Inc

Inventor： Nathan Edwards ,  Benjamin Breidall ,  Joseph A. Kronstedt

IPC: A61M60/818 ,  A61M60/419 ,  A61M60/216 ,  F04D13/06

CPC classification number: A61M60/419 ,  A61M60/216 ,  A61M60/818 ,  F04D13/06 ,  F04D13/064 ,  F04D13/0633 ,  A61M2207/00

Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods that may include a magnetic drive system of a blood pump. The magnetic drive system may include a drive shaft coupled to an impeller, a driven magnet assembly coupled to at least one of the drive shaft and the impeller, and a driving coil assembly configured to drive the driven magnet assembly.

公开(公告)号：US20230158290A1

公开(公告)日：2023-05-25

申请号：US18095738

申请日：2023-01-11

Applicant: Boston Scientific Scimed Inc.

Inventor： Laszlo T. Farago ,  Daniel H. VanCamp ,  Benjamin Breidall ,  Joseph A. Kronstedt

IPC: A61M60/824 ,  F16C33/10 ,  F04D13/02 ,  F04D29/046 ,  F16C17/08 ,  A61M60/818 ,  A61M60/216 ,  A61M60/422 ,  A61M60/508

CPC classification number: A61M60/824 ,  F16C33/1045 ,  F16C33/103 ,  F04D13/026 ,  F04D29/0467 ,  F16C17/08 ,  A61M60/818 ,  A61M60/216 ,  A61M60/422 ,  A61M60/508 ,  F16C2316/18

Abstract: A blood pump includes an impeller; a drive shaft coupled to the impeller and configured to rotate with the impeller; a motor configured to drive the impeller; and a bearing assembly disposed adjacent the motor and configured to receive an end of the drive shaft. The bearing assembly includes a bearing, where the end of the drive shaft is at least partially rounded, and the where the bearing includes a concave depression defined in a first side of the bearing, where the depression is configured to receive the end of the drive shaft. The bearing assembly may include a lubricant chamber configured to hold a lubricant.