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192 条记录 (耗时 0.021 秒)

    Atherectomy device handle with guide wire clamp override device
    32.
    发明授权
    Atherectomy device handle with guide wire clamp override device 失效
    动脉粥样斑块切除装置手柄带导丝夹钳装置

    公开(公告)号：US5779722A

    公开(公告)日：1998-07-14

    申请号：US792101

    申请日：1997-01-31

    申请人： Leonid Shturman ,  Georgiy Morov

    发明人： Leonid Shturman ,  Georgiy Morov

    IPC分类号： A61B17/22

    CPC分类号： A61B17/320758 ,  A61B2017/00553 ,  A61B2017/22049 ,  A61B2017/22075

    摘要： An atherectomy device having a handle housing, a rotatable prime mover movable longitudinally with respect to the handle housing, a rotatable drive shaft having a proximal end connected to the prime mover for rotation and longitudinal movement therewith, and a distal end portion having a tissue removal implement usable to remove tissue from a bodily passageway. A guide wire clamp is disposed within the handle housing for releasably clamping the proximal portion of a guide wire. An override clamp is removably securable to the handle housing for moving the guide wire clamp to a guide wire-released position and for holding the guide wire clamp in such released position. The override clamp may also include a mechanical linkage to the prime mover so that the override clamp locks the prime mover in a particular longitudinal position with respect to the handle housing.

    摘要翻译： 具有手柄壳体的动脉粥样斑块切除装置，相对于手柄壳体纵向移动的可旋转原动机，具有连接到原动机的近端以与其一起旋转和纵向运动的可旋转驱动轴，以及具有组织移除的远端部分 可用于从身体通道去除组织的实施方案。 引导线夹具设置在手柄壳体内，用于可释放地夹紧导丝的近端部分。 超控夹具可拆卸地固定到手柄壳体上，用于将引导线夹具移动到引导线释放位置并且用于将引导线夹具保持在该释放位置。 超控夹具还可以包括与原动机的机械连杆，使得超驰夹将原动机相对于手柄壳体锁定在特定的纵向位置。

    Magnetic guidewire coupling for catheter exchange
    33.
    发明授权
    Magnetic guidewire coupling for catheter exchange 失效
    用于导管交换的磁导丝联轴器

    公开(公告)号：US5487729A

    公开(公告)日：1996-01-30

    申请号：US217930

    申请日：1994-03-25

    申请人： Ernesto Avellanet ,  Ernesto Hernandez

    发明人： Ernesto Avellanet ,  Ernesto Hernandez

    IPC分类号： A61B17/22 ,  A61M25/01 ,  A61M25/09 ,  A61M29/00

    CPC分类号： A61M25/0169 ,  A61M25/09 ,  A61B2017/22049 ,  A61M2025/09125 ,  A61M2025/09175 ,  A61M25/0127

    摘要： Apparatus and method are disclosed for facilitating balloon catheter exchange in the vascular system of a patient. The apparatus and method concern means for holding a guidewire longitudinally fixed with respect to a guiding catheter while a balloon catheter is moved over the guidewire. Specifically, the guidewire is held longitudinally fixed with respect to the guiding catheter by way of magnetic coupling. A first magnetic element constitutes a portion of the guide wire or is attached to the guide wire to move with it. A second magnetic element is located proximate the balloon catheter but is not fixed to the balloon catheter. When the guidewire is moved within the guiding catheter to a location at which the first magnetic element reaches its point of closest approach to the second magnetic element, magnetic force holds the guidewire against movement relative to the guiding catheter even while a balloon catheter is being moved over the guidewire.

    摘要翻译： 公开了用于促进患者血管系统中的球囊导管交换的装置和方法。 该装置和方法关注装置，用于在气球导管移动穿过导丝的同时保持相对于引导导管纵向固定的导丝。 具体地，导线通过磁耦合相对于引导导管保持纵向固定。 第一磁性元件构成导丝的一部分，或者附接到导丝以与其一起移动。 第二磁性元件位于球囊导管附近，但不固定到球囊导管。 当导丝在引导导管内移动到第一磁性元件到达其最接近第二磁性元件的点的位置时，即使在球囊导管被移动时，磁力也能够相对于引导导管保持导线相对于引导导管的运动 在导丝上。

    Systems and Methods for Traversing a Site of Obstruction
    36.
    发明申请
    Systems and Methods for Traversing a Site of Obstruction 审中-公开

    公开(公告)号：US20180125510A1

    公开(公告)日：2018-05-10

    申请号：US15347118

    申请日：2016-11-09

    申请人： Cruzar Medsystems, Inc.

    发明人： Albert K. Chin ,  Thomas Kramer ,  Michael Glennon

    IPC分类号： A61B17/22

    CPC分类号： A61B17/22 ,  A61B17/3207 ,  A61B2017/22038 ,  A61B2017/22044 ,  A61B2017/22049 ,  A61B2017/22075 ,  A61B2017/22094

    摘要： Systems for providing access across a site of obstruction and methods for manufacturing and using such systems are provided. Such systems may include a cannula having a lumen, an everting member coupled to the cannula, and a push assembly having a pathway. The push assembly may be slidably disposed within the lumen of the cannula and connected to a proximal end of the everting member to move the everting member from an inverted position inside the cannula to an everted position outside the cannula. The systems may also include a tube having a passageway, the tube slidably disposed within the pathway of the push assembly and extending through a proximal end of the push assembly into the pathway of the push assembly to selectively move from a first position inside the push assembly to a second position outside the push assembly.