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。

    Tracking aspiration catheter
    4.
    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。

    Guide catheter having selected flexural modulus segments
    6.
    发明授权
    Guide catheter having selected flexural modulus segments 有权
    导管具有选定的弯曲模数段

    公开(公告)号:US07674411B2

    公开(公告)日:2010-03-09

    申请号:US10816429

    申请日:2004-04-01

    IPC分类号: B32B38/10

    摘要: A guiding catheter for use in coronary angioplasty and other cardiovascular interventions which incorporates a plurality of segment of selected flexural modulus in the shaft of the device. The segments which have a different flexibility than the sections immediately proximal and distal to them, creating zones in the catheter shaft which are either more or less flexible than other zones of the shaft. The flexibility and length of the shaft in a given zone is then matched to its clinical function and role. A mid-shaft zone is significantly softer than a proximal shaft or distal secondary curve to better traverse the aortic arch shape without storing too much energy. A secondary zone section is designed to have maximum stiffness to provide optimum backup support and stability.

    摘要翻译: 用于冠状动脉血管成形术和其他心血管干预的引导导管,其在装置的轴中并入多个选定的弯曲模量段。 这些段具有与紧邻的部分不同的部分,在导管轴中产生与轴的其它区域或多或少柔性的区域。 然后在给定区域中的轴的柔性和长度与其临床功能和作用相匹配。 中轴区域比近侧轴或远端二级曲线显着更软,以更好地横穿主动脉弓形状而不存储太多的能量。 次级区域设计为具有最大的刚度,以提供最佳的后备支撑和稳定性。

    Guide catheter having selected flexural modulus segments
    7.
    发明授权
    Guide catheter having selected flexural modulus segments 失效
    导管具有选定的弯曲模数段

    公开(公告)号:US06858024B1

    公开(公告)日:2005-02-22

    申请号:US09313672

    申请日:1999-05-18

    摘要: A guiding catheter for use in coronary angioplasty and other cardiovascular interventions which incorporates a plurality of segment of selected flexural modulus in the shaft of the device. The segments which have a different flexibility than the sections immediately proximal and distal to them, creating zones in the catheter shaft which are either more or less flexible than other zones of the shaft. The flexibility and length of the shaft in a given zone is then matched to its clinical function and role. A mid-shaft zone is significantly softer than a proximal shaft or distal secondary curve to better traverse the aortic arch shape without storing too much energy. A secondary zone section is designed to have maximum stiffness to provide optimum backup support and stability.

    摘要翻译: 用于冠状动脉血管成形术和其他心血管干预的引导导管,其在装置的轴中并入多个选定的弯曲模量段。 这些段具有与紧邻的部分不同的部分,在导管轴中产生与轴的其它区域或多或少柔性的区域。 然后在给定区域中的轴的柔性和长度与其临床功能和作用相匹配。 中轴区域比近侧轴或远端二级曲线显着更软,以更好地横穿主动脉弓形状而不存储太多的能量。 次级区域设计为具有最大刚度以提供最佳的后备支撑和稳定性。

    Catheter having a high tensile strength braid wire constraint and method of manufacture
    9.
    发明授权
    Catheter having a high tensile strength braid wire constraint and method of manufacture 有权
    导管具有高拉伸强度编织线约束和制造方法

    公开(公告)号:US06212422B1

    公开(公告)日:2001-04-03

    申请号:US09346973

    申请日:1999-07-02

    IPC分类号: A61B500

    摘要: A tubing assembly for manufacture for a catheter of the type having an inner tubular member defining a lumen, an outer tubular member surrounding said inner member, and a support member mounted between the tubular members to provide rigidity to the flexible catheter. The support member comprises a high tensile strength wire braid, and in the preferred embodiment comprises a stainless steel wire braid which has been tempered or hardened. This higher tensile strength affords significantly greater kink resistance to the flexible catheter. One wire braid has a tensile strength in the range of 300 to 425 kpsi and a braid density of approximately 40 pic. The high tensile strength wire braid has the disadvantage of tending to flare out at its free ends. Therefore, means are provided for preventing the flaring of the wire braid during manufacture of the tubing assembly. One means includes adhesive applied over the free ends. Another means includes a restraining sleeve applied over the free ends.

    摘要翻译: 一种用于制造导管的管组件,其具有限定内腔的内部管状构件,围绕所述内部构件的外部管状构件和安装在管状构件之间的支撑构件,以向柔性导管提供刚性。 支撑构件包括高抗拉强度的线编织物,并且在优选实施例中包括已经回火或硬化的不锈钢丝编织物。 这种较高的拉伸强度使柔性导管具有显着更大的扭结抗性。 一根丝编织物的拉伸强度范围为300至425kpsi,编织密度约为40pi。 高抗拉强度丝编织物的缺点在于它的自由端有倾向。 因此,提供了用于在制造管组件期间防止线编织物的扩口的装置。 一种方法包括在自由端施加的粘合剂。 另一种装置包括施加在自由端上的限制套筒。

    Catheter having a high tensile strength braid wire constraint and method of manufacture
    10.
    发明授权
    Catheter having a high tensile strength braid wire constraint and method of manufacture 有权
    导管具有高拉伸强度编织线约束和制造方法

    公开(公告)号:US07297302B2

    公开(公告)日:2007-11-20

    申请号:US10310016

    申请日:2002-12-04

    IPC分类号: B29C59/00

    摘要: A tubing assembly for manufacture for a catheter of the type having an inner tubular member defining a lumen, an outer tubular member surrounding said inner member, and a support member mounted between the tubular members to provide rigidity to the flexible catheter. The support member comprises a high tensile strength wire braid, and in the preferred embodiment comprises a stainless steel wire braid which has been tempered or hardened. This higher tensile strength affords significantly greater kink resistance to the flexible catheter. One wire braid has a tensile strength in the range of 300 to 425 kpsi and a braid density of approximately 40 pic. The high tensile strength wire braid has the disadvantage of tending to flare out at its free ends. Therefore, means are provided for preventing the flaring of the wire braid during manufacture of the tubing assembly. One means includes adhesive applied over the free ends. Another means includes a restraining sleeve applied over the free ends.

    摘要翻译: 一种用于制造导管的管组件,其具有限定内腔的内部管状构件,围绕所述内部构件的外部管状构件和安装在管状构件之间的支撑构件,以向柔性导管提供刚性。 支撑构件包括高抗拉强度的线编织物,并且在优选实施例中包括已经回火或硬化的不锈钢丝编织物。 这种较高的拉伸强度使柔性导管具有显着更大的扭结抗性。 一根丝编织物的拉伸强度范围为300至425kpsi,编织密度约为40pi。 高抗拉强度丝编织物的缺点在于它的自由端有倾向。 因此,提供了用于在制造管组件期间防止线编织物的扩口的装置。 一种方法包括在自由端施加的粘合剂。 另一种装置包括施加在自由端上的限制套筒。