公开(公告)号：US11696782B2

公开(公告)日：2023-07-11

申请号：US16217009

申请日：2018-12-11

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Corydon Carlson ,  David Gordon Spangler ,  Daniel Frank Massimini ,  Laszlo Trent Farago ,  Mark A. Hilse

IPC: A61B17/32 ,  A61B17/3207 ,  A61B1/00 ,  A61B17/00 ,  G05B19/4061 ,  A61B90/00

CPC classification number: A61B17/320758 ,  A61B1/00133 ,  A61B17/00234 ,  A61B17/32002 ,  G05B19/4061 ,  A61B2017/00017 ,  A61B2017/00398 ,  A61B2090/031 ,  G05B2219/37622 ,  G05B2219/42325

Abstract: Medical systems and methods for making and using medical systems are disclosed. Example medical systems may include an atherectomy system configured to engage and remove plaque from walls in vessels of a vascular system. The atherectomy system may include a drive shaft, a rotational member coupled to an end of the drive shaft, a motor coupled to the drive shaft to rotate the rotational tip, and a control unit configured to control a motor state of the motor. The motor may be an electric motor. The control unit may adjust the motor state to decelerate the motor in response to detecting a jam or a stall condition. The jam or stall condition may be detected when a speed of the motor or other motor state reaches or goes beyond a threshold value as prescribed by a reference schedule.

公开(公告)号：US20230047964A1

公开(公告)日：2023-02-16

申请号：US17969352

申请日：2022-10-19

Applicant: Boston Scientific Scimed, Inc.

Inventor： Corydon Carlson ,  David Gordon Spangler ,  Daniel Frank Massimini ,  Laszlo Trent Farago ,  Mark Alfred Hilse

IPC: A61B17/3207 ,  G05B11/42 ,  G05B13/02 ,  G05B11/14

Abstract: An atherectomy system includes a drive mechanism that is adapted to rotatably actuate an atherectomy burr and a controller that is adapted to regulate operation of the drive mechanism. In some cases, the drive mechanism includes a drive cable that is coupled with the atherectomy burr and a drive motor that is adapted to rotate the drive cable. The controller is adapted to receive an indication of an increase in torque experienced at the atherectomy burr and is further adapted to, in response, regulate operation of the drive mechanism such that the increase in torque results in a noticeable reduction in speed of the drive mechanism such that a user of the atherectomy system notices the reduction in speed and is alerted to the increase in torque.

公开(公告)号：US11478270B2

公开(公告)日：2022-10-25

申请号：US16284708

申请日：2019-02-25

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： Corydon Carlson ,  David Gordon Spangler ,  Daniel Frank Massimini ,  Laszlo Trent Farago ,  Mark A. Hilse

IPC: A61B17/3207 ,  G05B11/42 ,  G05B13/02 ,  G05B11/14 ,  A61B17/00 ,  A61B90/00

Abstract: An atherectomy system includes a drive mechanism that is adapted to rotatably actuate an atherectomy burr and a controller that is adapted to regulate operation of the drive mechanism. In some cases, the drive mechanism includes a drive cable that is coupled with the atherectomy burr and a drive motor that is adapted to rotate the drive cable. The controller is adapted to receive an indication of an increase in torque experienced at the atherectomy burr and is further adapted to, in response, regulate operation of the drive mechanism such that the increase in torque results in a noticeable reduction in speed of the drive mechanism such that a user of the atherectomy system notices the reduction in speed and is alerted to the increase in torque.

公开(公告)号：US10893882B2

公开(公告)日：2021-01-19

申请号：US16286252

申请日：2019-02-26

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： David Gordon Spangler ,  Corydon Carlson ,  Laszlo Trent Farago ,  Daniel Frank Massimini ,  Mark A. Hilse

IPC: A61B17/32 ,  A61B90/00 ,  A61B17/3207 ,  A61B34/00 ,  G05B11/28 ,  A61B17/00 ,  A61B18/00

Abstract: An atherectomy system includes a handle and a drive motor that is adapted to rotate a drive cable extending through the handle and operably coupled to an atherectomy burr. A control system is adapted to regulate operation of the drive motor, including providing the drive motor with a high frequency pulse width modulation (PWM) drive signal in order to operate the drive motor. The control system monitors a motor performance parameter such as motor speed or motor torque, and when the motor performance parameter approaches a limit of a performance range, the control system adds a low frequency PWM signal to the high frequency PWM drive signal, thereby causing the drive motor to produce a tactile signal that signals to the user that the motor performance parameter is approaching the limit of the performance range.