Internal mammary artery (IMA) catheter
    6.
    发明授权
    Internal mammary artery (IMA) catheter 失效
    乳腺内动脉(IMA)导管

    公开(公告)号:US4909258A

    公开(公告)日:1990-03-20

    申请号:US229927

    申请日:1988-08-08

    摘要: Apparatus for performing subselective arteriography or angioplasty on an internal mammary artery or graft which avoids dissection or stenosis of the internal mammary artery or graft. A catheter having a balloon and a proximal port delivers an angiographic dye or a device for treating vascular obstructions to the internal mammary artery or graft from a stable position within the subclavian artery.Method for injecting angiographic dye into an internal mammary artery or graft. A catheter having and a balloon and a proximal port is inserted over a guide wire into a subclavian artery and inflated at a point distal to the junction of the subclavian artery and the internal mammary artery or graft. An angiographic dye is delivered through the proximal port and flows into the internal mammary artery or graft.Method for cannulation of an internal mammary artery or graft which avoids dissection or stenosis of the internal mammary artery or graft. A catheter having a balloon and a proximal port is inserted over a guide wire into a subclavian artery and inflated at a point distal to the junction of the subclavian artery or internal mammary artery or graft. A device for treating vascular obstructions is advanced over a guide wire through the proximal port of the apparatus of the present invention and into the internal mammary artery or graft. Support for the device for treating vascular obstructions is provided by the catheter of the present invention, not by the internal mammary artery ostium.

    摘要翻译: 用于在内部乳腺动脉或移植物上进行子选择性动脉造影或血管成形术的装置,其避免乳内动脉或移植物的解剖或狭窄。 具有球囊和近端口的导管传送血管造影染料或用于治疗来自内锁乳内动脉或从锁骨下动脉内的稳定位置移植物的血管阻塞物的装置。 将血管造影染料注射到乳内动脉或移植物内的方法。 具有球囊和近端口的导管插入锁骨下动脉,并在锁骨下动脉和乳内动脉或移植物的接合处远侧的位置充气。 血管造影染料通过近端口输送并流入乳内动脉或移植物。 用于插入内乳内动脉或移植物的方法,其避免乳内动脉或移植物的解剖或狭窄。 具有气球和近端口的导管插入锁骨下动脉,并在锁骨下动脉或乳内动脉或移植物的接合处远侧的位置处膨胀。 用于治疗血管阻塞物的装置通过导丝穿过本发明的装置的近端进入乳内动脉或移植物内。 用于治疗血管阻塞物的装置的支撑由本发明的导管提供,而不是由内部乳腺动脉口提供。

    Atherectomy catheter having axially-disposed cutting edge
    7.
    发明授权
    Atherectomy catheter having axially-disposed cutting edge 失效
    具有轴向切割边缘的ATHERECTOMY导管

    公开(公告)号:US5242460A

    公开(公告)日:1993-09-07

    申请号:US604036

    申请日:1990-10-25

    IPC分类号: A61B17/00 A61B17/22

    CPC分类号: A61B17/320783

    摘要: Atherectomy catheters are described having a cylindrical cutting head rotatably mounted at the distal end of a catheter body. The head has an axially elongated aperture and an open interior. A severing means is disposed adjacent the elongated aperture such that atheromatous material invaginated by the head is severed and diverted into the interior of the head. A preferred embodiment has the elongated aperture helically-disposed about the central axis of the cylindrical head and a cutting means formed integrally along the periphery of the aperture. Another preferred embodiment has the cylindrical head provided with a tapered distal end that extends distally from a housing for the head and incorporates an extension of the elongated aperture.

    摘要翻译: 描述了具有可旋转地安装在导管主体的远端处的圆柱形切割头的动脉粥样硬化切除术导管。 头部具有轴向延伸的孔和敞开的内部。 切断装置邻近细长的孔设置,使得头部内陷的动脉粥样硬化材料被切断并转移到头部的内部。 优选实施例具有围绕圆柱形头部的中心轴线螺旋地设置的细长孔和沿着孔的周边整体形成的切割装置。 另一优选实施例具有圆柱形头部,其具有从用于头部的壳体向远端延伸的锥形远端并且包括细长孔的延伸部。

    Telescoping guide catheter system
    8.
    发明授权
    Telescoping guide catheter system 失效
    伸缩引导导管系统

    公开(公告)号:US5120323A

    公开(公告)日:1992-06-09

    申请号:US730373

    申请日:1991-07-11

    IPC分类号: A61B17/22 A61M25/01

    摘要: The guide catheter system for use in the treatment of coronary artery disease includes a first single-lumen catheter of a relatively large internal diameter to pass a second guide catheter therethrough. The first guide catheter comprises an elongated flexible tube having a stainless steel braid embedded in the wall thereof for imparting desired torqueability characteristics to it. The first guide catheter is intended to be inserted at an appropriate point in the vascular system and then advanced until its distal end reaches the coronary ostium. The second guide catheter is fabricated by extruding a plastic, such as polyurethane thermoplastic resin over a tubular Teflon.RTM. core and because it is to be used within the lumen of the first catheter, it need not include a braided structure within its walls to prevent it from kinking. This allows the second catheter to be sufficiently slim to permit it to be advanced into a coronary artery while allowing fluids to be perfused between the outer wall of the second guide and the inner wall of the first guide catheter while still providing a sufficiently large inner lumen to pass a working catheter, e.g., an angioplasty or atherectomy catheter. An atraumatic tip is attached to the distal end of the second guide catheter.

    摘要翻译: 用于治疗冠状动脉疾病的引导导管系统包括具有较大内径的第一单腔导管以使第二引导导管穿过其中。 第一引导导管包括细长的柔性管,其具有嵌入其壁中的不锈钢编织物,以向其施加期望的扭矩特性。 第一引导导管旨在插入血管系统中的适当位置,然后前进直至其远端到达冠状口。 第二引导导管通过在管状特氟隆TM芯上挤出诸如聚氨酯热塑性树脂之类的塑料制成,并且由于其将被用于第一导管的内腔内,所以不需要在其壁内包括编织结构以防止 从扭结。 这允许第二导管足够纤薄以允许其进入冠状动脉,同时允许流体在第二引导件的外壁和第一引导导管的内壁之间灌注,同时仍然提供足够大的内腔 通过工作导管,例如血管成形术或粥样斑块切除术导管。 无创伤的尖端附接到第二引导导管的远端。

    Laser atherectomy catheter
    9.
    发明授权
    Laser atherectomy catheter 失效
    激光粥样斑块切除术导管

    公开(公告)号:US4966596A

    公开(公告)日:1990-10-30

    申请号:US229622

    申请日:1988-08-08

    IPC分类号: A61B17/22 A61B18/24

    摘要: Method to remove an eccentric vascular obstruction by excision with laser energy, preferably excimer laser energy, delivered through a mobile fiber optic shelf, and collecting the excised section within a housing.Apparatus to perform a surgically smooth excision of an eccentric vascular obstruction whereby a mobile fiber optic shelf delivers excimer laser energy to the obstruction to sever the obstruction from the vessel wall, a housing collects the excised section through a radially located cut-out window, the mobile fiber optic shelf traps the excised section within the housing, and a laser light collector prevents the escape of laser energy after application to the obstruction wherein the excised obstruction is physically removed from a patient's body.

    摘要翻译: 通过用激光能量(优选准分子激光能量)切除以移除偏心血管阻塞物的方法,通过可移动光纤架子传送,并将壳体内的切除部分收集。 用于执行外科平滑切除偏心血管阻塞的装置,由此可移动光纤架将受激准分子激光能量传递到障碍物以切断来自血管壁的阻塞,壳体通过径向定位的切口窗收集切除部分, 移动光纤架将切除的部分收纳在壳体内,并且激光收集器防止在施加到阻塞物之后激光能量的逸出,其中切除的阻塞物质地从患者身体移除。