Devices, systems and methods for acute or chronic delivery of substances or apparatus to extravascular treatment sites
    21.
    发明授权
    Devices, systems and methods for acute or chronic delivery of substances or apparatus to extravascular treatment sites 有权
    用于急性或慢性传播物质或器械至血管外治疗部位的装置,系统和方法

    公开(公告)号:US07357794B2

    公开(公告)日:2008-04-15

    申请号:US10466622

    申请日:2002-01-17

    IPC分类号: A61M31/00

    摘要: Methods and apparatus for delivery of substances or apparatus to target sites located outside blood vessels within the body of a human or animal patient. A vessel wall penetrating catheter is inserted into the vasculature, positioned and oriented within a blood vessel near the target extravascular site and a penetrator is advanced from the catheter so as to penetrate outwardly through the wall of the blood vessel in the direction of the target site. Thereafter, a delivery catheter is passed through a lumen of the penetrator to the target site. A desired substance or apparatus is then delivered to or obtained from the target site. In some applications, the penetrator may be retracted into the vessel wall penetrating catheter and the vessel wall penetrating catheter may be removed, leaving the delivery catheter in place for chronic or continuous delivery of substance(s) to and/or obtaining of information or samples from the target site. Alternatively, a delivery catheter having an occlusion member or balloon may be advanced into a vein or venule and the occlusion member or balloon may be used to occlude the lumen of the vein or venule during and after injection of a substance through the catheter, such that the substance will not be carried away by normal venous blood flow and will remain in the vein or venule for a sufficient period of time to have its intended effect (e.g. to enter adjacent tissues through capillary beds drained by that vein or venule).

    摘要翻译: 用于将物质或装置输送到位于人或动物患者体内的血管外的位置的方法和装置。 将血管壁穿透导管插入脉管系统中,定位并定向在目标血管外部位附近的血管内,并且穿透器从导管前进,以便沿目标部位的方向向外穿过血管壁 。 此后,输送导管穿过穿透器的内腔到目标部位。 然后将所需的物质或装置输送到目标部位或从目标部位获得。 在一些应用中,穿透器可以缩回到穿过导管的血管壁中,并且可以移除穿透导管的血管壁,使输送导管留在适当位置,以便将物质慢慢地或连续地递送到和/或获得信息或样品 从目标网站。 或者,具有闭塞构件或气囊的输送导管可以推入静脉或小静脉中,并且阻塞构件或气囊可以在通过导管注射物质期间和之后用于闭塞静脉或小静脉的内腔,使得 该物质不会被正常的静脉血流带走,并将在静脉或小静脉中保持足够的时间以达到其预期效果(例如,通过由该静脉或小静脉排出的毛细血管床进入相邻组织)。

    Transluminally deliverable vascular blockers and methods for facilitating retrograde flow of arterial blood through veins
    22.
    发明授权
    Transluminally deliverable vascular blockers and methods for facilitating retrograde flow of arterial blood through veins 失效
    可口服递送的血管阻滞剂和促进动脉血通过静脉逆行流动的方法

    公开(公告)号:US06746426B1

    公开(公告)日:2004-06-08

    申请号:US09613675

    申请日:2000-07-11

    IPC分类号: A61M2900

    摘要: Transluminal methods and apparatus for causing arterial blood to flow through a vein of a mammalian patient, in a direction opposite normal venous blood flow, after an arterial blood containing conduit has been purposely or inadvertently connected to the vein. The method includes the use of a transluminally inserted vessel lumen occluding apparatus to at least partially block (e.g., occlude, embolize or close) the lumen of the vein at a location that is proximal to the location at which the arterial blood containing conduit is connected to the vein. The apparatus comprises a radially expandable lumen blocking device that is implantable in the vein lumen and catheters and other apparatus for implanting the radially expandable lumen blocking device into the lumen of the vein.

    摘要翻译: 在动脉血液导管之间导致动脉血液以与正常静脉血流相反的方向流过哺乳动物患者的静脉的手术方法和装置已经有意或无意地连接到静脉。 该方法包括使用平滑插入的血管内腔封闭装置,以在至少部分地阻塞(例如闭塞,栓塞或闭合)静脉内腔的位置处,该位置靠近所述动脉血液导管连接的位置 到静脉 该装置包括可植入在静脉腔内的可径向扩张的管腔阻断装置,以及用于将可径向扩张的管腔阻塞装置植入静脉内腔的其它装置。