Implantable access device
    1.
    发明授权
    Implantable access device 失效
    植入式接入设备

    公开(公告)号:US5741228A

    公开(公告)日:1998-04-21

    申请号:US390014

    申请日:1995-02-17

    摘要: An implantable access device for allowing repeat access to a site, space, device, or other object, fluid, tissue or region within the body of a patient. The implantable device, in one embodiment, includes a housing having an elongated open guidance channel that leads to an entrance orifice, a valve assembly communicating with the entrance orifice, and an exit orifice. The device permits access via the percutaneous insertion of an accessing filament such as a needle through the entrance orifice and into the valve assembly, which opens to allow the passage of fluids or other filaments such as guide wires or optical fibers. The device can be used for the introduction of therapeutic agents, for the infusion or withdrawal of fluids, or for the introduction of sensing, sampling, or treatment devices to another implanted device or to regions within the patient.

    摘要翻译: 一种用于允许重复访问患者体内的部位,空间,装置或其它物体,流体,组织或区域的可植入进入装置。 在一个实施例中,可植入装置包括具有通向入口孔的细长的开放引导通道,与入口孔连通的阀组件和出口孔的壳体。 该装置允许通过经由插入通过入口孔的入口细丝经皮插入进入阀组件而进入,阀组件打开以允许诸如导丝或光纤之类的流体或其它细丝通过。 该装置可用于引入治疗剂,用于输注或取出流体,或用于将感测,取样或治疗装置引入另一种植入装置或患者体内的区域。

    Devices, systems and methods for acute or chronic delivery of substances or apparatus to extravascular treatment sites
    6.
    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。