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    ATHERECTOMY DEVICE
    1.
    发明申请
    ATHERECTOMY DEVICE 有权
    ATHERECTOMY设备

    公开(公告)号：US20140336684A1

    公开(公告)日：2014-11-13

    申请号：US14360722

    申请日：2012-10-30

    Applicant: NIPRO CORPORATION

    Inventor： Nobuyuki Soeda ,  Katsuya Miyagawa ,  Yuuki Nishimura ,  MIsa Kakinoki

    IPC: A61B17/3207

    CPC classification number: A61B17/320758 ,  A61B17/320783 ,  A61B2017/00734 ,  A61B2017/22071 ,  A61B2017/320791

    Abstract: An atherectomy device has a drive circuit which rotates a direct-current motor. The drive circuit has a three-terminal regulator having an ADJ terminal. A partial pressure resistor is connected between the ADJ terminal and an output terminal of the three-terminal regulator. Moreover, one end of six variable resistors whose resistances are set to be different from each other is connected to the ADJ terminal. The other end of the six variable resistors is selectively connected to the negative electrode of a battery by a change-over switch which is a rotary switch having six contacts. When the variable resistors are switched by the change-over switch, the output current of the three-terminal regulator becomes large. Thus, the rotation speed of a cutter which is rotated by the direct-current motor becomes high.

    Abstract translation: 动脉粥样硬化切除装置具有使直流电动机旋转的驱动电路。 驱动电路具有具有ADJ端子的三端调节器。 ADJ端子和三端稳压器的输出端子之间连接有分压电阻。 此外，电阻被设定为彼此不同的六个可变电阻器的一端连接到ADJ端子。 六个可变电阻器的另一端通过具有六个触点的旋转开关的转换开关选择性地连接到电池的负极。 当可变电阻由转换开关切换时，三端稳压器的输出电流变大。 因此，由直流电动机旋转的切割器的转速变高。

    ABLATION SYSTEM
    2.
    发明申请
    ABLATION SYSTEM 审中-公开

    公开(公告)号：US20200289202A1

    公开(公告)日：2020-09-17

    申请号：US16818299

    申请日：2020-03-13

    Applicant: Nipro Corporation

    Inventor： Katsuya Miyagawa ,  Yuuki Nishimura ,  Natsumi Shimazaki

    IPC: A61B18/24

    Abstract: [Object] To provide an ablation system capable of suppressing heat damages to the lumen intima.[Solution] An ablation system 10 has an ablation device 11 in which a balloon 21 is provided on the distal end side of a shaft 22 and an in-side tube 27 causing a fluid to flow into the balloon 21, the internal space of the shaft 22 causing a fluid to flow out of the balloon 21, and an optical fiber 29 guiding laser light into the balloon 21 are individually provided along the shaft 22, a laser light generating unit 12 emitting laser light to the optical fiber 29, and a fluid returning unit 13 returning a fluid into the internal space of the balloon 21. The ablation device 11 has a reflector 33 reflecting laser light emitted from the optical fiber 29 in the balloon 21, in which the reflector 33 is movable along the axial direction 191 in the balloon 21 and is rotatable in the axial direction 101 as the axis line.

    Balloon catheter
    4.
    发明授权
    Balloon catheter 有权

    公开(公告)号：US10342594B2

    公开(公告)日：2019-07-09

    申请号：US15304822

    申请日：2015-07-01

    Applicant: Nipro Corporation

    Inventor： Katsuya Miyagawa ,  Yuuki Nishimura ,  Natsumi Shimazaki

    IPC: A61B18/04 ,  A61B17/00 ,  A61F7/12 ,  A61B18/20 ,  A61M25/10 ,  A61B18/08 ,  A61B18/00

    Abstract: A balloon catheter (10) has a shaft (12) having an elastically expandable balloon (11) on the distal end side and space provided inside and allowing a fluid to flow into and flow out the balloon (11), a heat generating member (22) provided in the internal space of the balloon (11), and optical fibers (20A, 20B) which are extended up to the internal space of the balloon (11) along the shaft (12) and emit light beams input into the proximal end to the heat generating member (22) from the distal end.

    ATHERECTOMY CATHETER
    5.
    发明申请
    ATHERECTOMY CATHETER 有权
    ATHERECTOMY导管

    公开(公告)号：US20140343584A1

    公开(公告)日：2014-11-20

    申请号：US14360715

    申请日：2012-10-30

    Applicant: NIPRO CORPORATION

    Inventor： Nobuyuki Soeda ,  Katsuya Miyagawa ,  Yuuki Nishimura ,  Misa Kakinoki

    IPC: A61B17/3207 ,  A61M25/00

    CPC classification number: A61B17/320783 ,  A61B17/320758 ,  A61B2017/22071 ,  A61B2017/320064 ,  A61M25/0023

    Abstract: An atherectomy catheter has a shaft having an opening in the side wall, a cutter which is positioned near the opening in the internal space of the shaft and which can move in the axial direction of the shaft, and a distal end portion connected to the distal end of the shaft. The distal end portion has a blade tube connected to the distal end of the shaft by continuing the internal space, a reduced diameter portion connected to the distal end of the blade tube by continuing the internal space, and a distal end tip whose outer diameter is smaller than the outer diameter of the distal end of the blade tube, whose distal end side is projected outward from the distal end of the reduced diameter portion, and whose proximal end side is extended into the internal space of the blade tube through the internal space of the reduced diameter portion.

    Abstract translation: 粥样斑块切除导管具有在侧壁中具有开口的轴，切割器位于轴的内部空间中的开口附近并且可以在轴的轴向方向上移动，并且远端部分连接到远端 轴的端部。 前端部具有通过连续内部空间连接到轴的远端的叶片管，通过继续内部空间连接到叶片管的远端的直径减小的部分，以及外径为 小于叶片管的远端的外径，其远端侧从缩径部的远端向外突出，并且其近端侧通过内部空间延伸到叶片管的内部空间 的直径减小部分。

    Ablation system
    6.
    发明授权
    Ablation system 有权

    公开(公告)号：US10925672B2

    公开(公告)日：2021-02-23

    申请号：US16818299

    申请日：2020-03-13

    Applicant: Nipro Corporation

    Inventor： Katsuya Miyagawa ,  Yuuki Nishimura ,  Natsumi Shimazaki

    IPC: A61B18/24 ,  A61B18/00 ,  A61B18/22

    Abstract: [Object] To provide an ablation system capable of suppressing heat damages to the lumen intima.
    [Solution] An ablation system 10 has an ablation device 11 in which a balloon 21 is provided on the distal end side of a shaft 22 and an in-side tube 27 causing a fluid to flow into the balloon 21, the internal space of the shaft 22 causing a fluid to flow out of the balloon 21, and an optical fiber 29 guiding laser light into the balloon 21 are individually provided along the shaft 22, a laser light generating unit 12 emitting laser light to the optical fiber 29, and a fluid returning unit 13 returning a fluid into the internal space of the balloon 21. The ablation device 11 has a reflector 33 reflecting laser light emitted from the optical fiber 29 in the balloon 21, in which the reflector 33 is movable along the axial direction 191 in the balloon 21 and is rotatable in the axial direction 101 as the axis line.

    Atherectomy catheter
    7.
    发明授权
    Atherectomy catheter 有权
    动脉粥样硬化切除术导管

    公开(公告)号：US09572594B2

    公开(公告)日：2017-02-21

    申请号：US14360715

    申请日：2012-10-30

    Applicant: NIPRO CORPORATION

    Inventor： Nobuyuki Soeda ,  Katsuya Miyagawa ,  Yuuki Nishimura ,  Misa Kakinoki

    IPC: A61B17/3207 ,  A61M25/00 ,  A61B17/22 ,  A61B17/32

    CPC classification number: A61B17/320783 ,  A61B17/320758 ,  A61B2017/22071 ,  A61B2017/320064 ,  A61M25/0023

    Abstract: An atherectomy catheter has a shaft having an opening in the side wall, a cutter which is positioned near the opening in the internal space of the shaft and which can move in the axial direction of the shaft, and a distal end portion connected to the distal end of the shaft. The distal end portion has a blade tube connected to the distal end of the shaft by continuing the internal space, a reduced diameter portion connected to the distal end of the blade tube by continuing the internal space, and a distal end tip whose outer diameter is smaller than the outer diameter of the distal end of the blade tube, whose distal end side is projected outward from the distal end of the reduced diameter portion, and whose proximal end side is extended into the internal space of the blade tube through the internal space of the reduced diameter portion.

    Abstract translation: 粥样斑块切除导管具有在侧壁中具有开口的轴，切割器位于轴的内部空间中的开口附近并且可以在轴的轴向方向上移动，并且远端部分连接到远端 轴的端部。 前端部具有通过连续内部空间连接到轴的远端的叶片管，通过继续内部空间而连接到叶片管的远端的直径减小的部分，以及外径为 小于叶片管的远端的外径，其远端侧从缩径部的远端向外突出，并且其近端侧通过内部空间延伸到叶片管的内部空间 的直径减小部分。

    Atherectomy device
    8.
    发明授权
    Atherectomy device 有权
    动脉粥样斑块切除装置

    公开(公告)号：US09456844B2

    公开(公告)日：2016-10-04

    申请号：US14360722

    申请日：2012-10-30

    Applicant: NIPRO CORPORATION

    Inventor： Nobuyuki Soeda ,  Katsuya Miyagawa ,  Yuuki Nishimura ,  Misa Kakinoki

    IPC: A61B17/3207 ,  A61B17/00 ,  A61B17/22

    CPC classification number: A61B17/320758 ,  A61B17/320783 ,  A61B2017/00734 ,  A61B2017/22071 ,  A61B2017/320791

    Abstract: An atherectomy device has a drive circuit which rotates a direct-current motor. The drive circuit has a three-terminal regulator having an ADJ terminal. A partial pressure resistor is connected between the ADJ terminal and an output terminal of the three-terminal regulator. Moreover, one end of six variable resistors whose resistances are set to be different from each other is connected to the ADJ terminal. The other end of the six variable resistors is selectively connected to the negative electrode of a battery by a change-over switch which is a rotary switch having six contacts. When the variable resistors are switched by the change-over switch, the output current of the three-terminal regulator becomes large. Thus, the rotation speed of a cutter which is rotated by the direct-current motor becomes high.

    Abstract translation: 动脉粥样硬化切除装置具有使直流电动机旋转的驱动电路。 驱动电路具有具有ADJ端子的三端调节器。 ADJ端子和三端稳压器的输出端子之间连接有分压电阻。 此外，电阻被设定为彼此不同的六个可变电阻器的一端连接到ADJ端子。 六个可变电阻器的另一端通过具有六个触点的旋转开关的转换开关选择性地连接到电池的负极。 当可变电阻由转换开关切换时，三端稳压器的输出电流变大。 因此，由直流电动机旋转的切割器的转速变高。

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