Devices, systems and methods for acute or chronic delivery of substances or apparatus to extravascular treatment sites
    5.
    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:US08672920B2

    公开(公告)日:2014-03-18

    申请号:US11927888

    申请日:2007-10-30

    IPC分类号: A61M31/00

    摘要: Methods and apparatus for delivery of substances or apparatus to target sites located outside blood vessel lumens. A penetrating catheter is inserted into a blood vessel lumen and a penetrator is advanced from the catheter 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 delivery catheter may remain 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 may be advanced into a vein or venule and used to occlude the lumen of the vein or venule during and after injection of a substance such that the substance will not be carried away by normal venous blood flow.

    摘要翻译: 用于将物质或设备运送到位于血管内腔外的靶位置的方法和装置。 将穿透性导管插入血管内腔中,并且穿透器沿导向器朝向目标部位的方向前进。 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,输送导管可以保持在适当位置以便从目标部位慢慢或连续地输送物质到和/或获得信息或样品。 或者,具有闭塞构件的输送导管可以推入静脉或小静脉中,并用于在注射物质期间和之后闭塞静脉或小静脉的内腔,使得物质不会被正常的静脉血流带走。