Medical grafting methods and apparatus
    1.
    发明授权
    Medical grafting methods and apparatus 有权
    医疗移植方法和装置

    公开(公告)号:US06866674B2

    公开(公告)日:2005-03-15

    申请号:US10084010

    申请日:2002-02-27

    摘要: Methods and apparatus for making an anastomotic connection between a first conduit and a second conduit. A connector structure having a first end portion and a second end portion is positioned about a balloon catheter, which when pressurized, expands to a significant extent at the distal end thereof. The balloon enlarges the connector structure when positioned at the distal end portion of the balloon to create the anastomosis, and at the same time reduces the axial length of the connector, thereby compressing the first conduit to the second conduit, creating a hemodynamic seal and a firm attachment of the two conduits. After enlargement, the connector structure remains in place and adds structure to the anastomosis. During introduction, the second end portion of the connector is covered by a nosecone assembly to prevent trauma to the second conduit while the apparatus is being introduced. The nosecone assembly has a flexible structure which may change configuration to expose the second set of members after insertion into the second conduit and to allow removal of the nosecone after deployment.

    摘要翻译: 用于在第一导管和第二导管之间进行吻合连接的方法和装置。 具有第一端部部分和第二端部部分的连接器结构围绕球囊导管定位,当加压时,其在其远端处显着扩张。 当定位在球囊的远端部分时,气囊扩大连接器结构以产生吻合,并且同时减小连接器的轴向长度,从而将第一导管压缩到第二导管,产生血流动力学密封和 坚固的连接两个管道。 放大后,连接器结构保持原位,并将结构添加到吻合中。 在引入期间,连接器的第二端部被鼻锥组件覆盖,以在装置被引入时防止对第二导管的创伤。 鼻锥组件具有柔性结构,其可以改变配置以在插入第二导管之后暴露第二组构件,并且在展开之后允许去除鼻锥。

    Rapid exchange catheter
    3.
    发明授权
    Rapid exchange catheter 有权
    快速交换导管

    公开(公告)号:US08758325B2

    公开(公告)日:2014-06-24

    申请号:US11409147

    申请日:2006-04-21

    IPC分类号: A61M31/00

    摘要: Thrombectomy catheters are presented that have curved tip portions. A suction lumen extends from at or near the proximal end of the catheter to a suction port at or near the tip portion of the catheter. The curves of the thrombectomy catheter can be selected to place a suction port at or near a vessel wall for the more effective removal of thrombus resulting from directing the suction in the direction of the thrombus. In some embodiments, the tip portion of the catheter can be transitioned from a first configuration for delivery of the catheter into the vessel to a second more curved configuration with a desired design for application of suction. The catheter can be moved in a circumferential and/or lateral direction to cover selected portions of the inner vessel wall. In some embodiments, a partially occlusive structure can be used to reduce and/or redirect flow within the vessel to improve performance of the thrombectomy.

    摘要翻译: 呈现出具有弯曲尖端部分的血栓切除导管。 吸入腔从导管的近端处或附近延伸到导管尖端部分处或附近的吸入口。 可以选择血栓切除术导管的曲线以将血管口置于血管壁或血管壁附近,以便更有效地从血栓方向引导吸引血栓。 在一些实施例中,导管的尖端部分可以从用于将导管输送到容器中的第一构型转变成具有用于施加抽吸的期望设计的第二更弯曲构造。 导管可以在周向和/或横向移动以覆盖内部血管壁的选定部分。 在一些实施方案中,可以使用部分封闭结构来减少和/或重定向血管内的流动,以改善血栓切除术的性能。

    Perfusion balloon angioplasty catheter
    4.
    发明授权
    Perfusion balloon angioplasty catheter 失效
    灌注球囊血管成形术导管

    公开(公告)号:US07087039B1

    公开(公告)日:2006-08-08

    申请号:US08909130

    申请日:1997-08-11

    IPC分类号: A61M29/00

    CPC分类号: A61M25/104 A61M2025/1095

    摘要: A balloon angioplasty catheter having a balloon head assembly carried at the distal end of an elongated catheter body. The balloon head assembly includes an inflatable balloon envelope and a perfusion lumen extending through the balloon envelope to provide a blood flow passage during inflation of the balloon envelope. The invention also encompasses embodiments having a collapsible guidewire lumen for increasing perfusion blood flow upon guidewire withdrawal. Also within the scope of the invention is a distally stepped down perfusion catheter, allowing for decreased distal cross section. In another preferred embodiment, the perfusion lumen is inflatable. In yet another embodiment, the guidewire lumen is external to the perfusion lumen.

    摘要翻译: 一种球囊血管成形术导管,其具有在细长导管体的远端处承载的气囊头组件。 气囊头组件包括可膨胀的气囊外壳和延伸穿过气囊外壳的灌注腔,以在气囊包囊充气期间提供血流通道。 本发明还包括具有可折叠导丝管腔的实施例,用于在引导线拔出时增加灌注血流量。 也在本发明的范围内是远侧逐步降低的灌注导管,允许减小的远端横截面。 在另一优选实施例中,灌注腔是可充气的。 在另一个实施例中,导丝管腔在灌注腔外部。

    Perfusion balloon angioplasty catheter
    5.
    发明授权
    Perfusion balloon angioplasty catheter 失效
    灌注球囊血管成形术导管

    公开(公告)号:US5591129A

    公开(公告)日:1997-01-07

    申请号:US441618

    申请日:1995-05-15

    IPC分类号: A61M25/00 A61M29/02 A61M29/00

    摘要: A balloon angioplasty catheter having a balloon head assembly carried at the distal end of an elongated catheter body. The balloon head assembly includes an inflatable balloon envelope and a perfusion lumen extending through the balloon envelope to provide a blood flow passage during inflation of the balloon envelope. In a preferred embodiment, the perfusion lumen is formed by a helical member having spaced coils encapsulated with a flexible material. A discharge lumen is formed by a projecting tip, the tip being integrally formed with the balloon envelope. Discharge orifices are provided through the tip sidewall. In a preferred embodiment, the side discharge orifices are elongated in the general direction of perfusion flow through the balloon head. The invention also encompasses means for facilitating discharge of perfused blood through the discharge orifices. This is accomplished by valving perfusate flow through the discharge lumen.

    摘要翻译: 一种球囊血管成形术导管,其具有在细长导管体的远端处承载的气囊头组件。 气囊头组件包括可膨胀的气囊外壳和延伸穿过气囊外壳的灌注腔,以在气囊包囊充气期间提供血流通道。 在优选实施例中,灌注内腔由具有用柔性材料包封的间隔线圈的螺旋构件形成。 排出腔由突出的尖端形成,尖端与气囊外壳一体形成。 通过尖端侧壁设置排出口。 在优选实施例中,侧排出口在通过气囊头的灌注流的大致方向上是细长的。 本发明还包括便于通过排出孔排出灌注的血液的装置。 这可以通过排出管腔中的灌注液流动来实现。

    Tracking aspiration catheter
    6.
    发明授权
    Tracking aspiration catheter 有权
    跟踪吸气导管

    公开(公告)号:US08021351B2

    公开(公告)日:2011-09-20

    申请号:US11207169

    申请日:2005-08-18

    IPC分类号: A61M25/00

    摘要: In general, aspiration catheters have a suction device, a proximal portion and a shaft with a proximal end and a distal end. Improvements in the aspiration catheter design provide for improved tracking and/or reduced chance of snagging during delivery of the aspiration catheter. In some embodiments, the tip of the shaft has a curve relative to the neutral orientation of the remaining portions of the shaft. In other embodiments, the aspiration catheter further comprises a tracking portion that has a guide lumen. A guide structure can extend through the guide lumen to limit the motion of the tip of the catheter relative to the guide structure during delivery of the aspiration catheter within a patient's vessel. In further embodiments, the aspiration catheter comprises a deflection structure having a tether and a bumper. Improved methods for using the aspiration catheter to recover an embolism protection device are described.

    摘要翻译: 通常,抽吸导管具有抽吸装置,近端部分和具有近端和远端的轴。 抽吸导管设计的改进提供了在抽吸导管递送期间改善的跟踪和/或减少的障碍机会。 在一些实施例中,轴的尖端相对于轴的剩余部分的中性取向具有曲线。 在其它实施例中,抽吸导管还包括具有引导内腔的跟踪部分。 引导结构可以延伸穿过引导腔,以在抽吸导管在患者的血管内递送期间限制导管的尖端相对于引导结构的运动。 在另外的实施例中,抽吸导管包括具有系绳和保险杠的偏转结构。 描述了使用吸引导管恢复栓塞保护装置的改进方法。