Implantable devices using magnetic guidance
    2.
    发明申请
    Implantable devices using magnetic guidance 审中-公开
    使用磁性引导的植入式装置

    公开(公告)号:US20060052656A1

    公开(公告)日:2006-03-09

    申请号:US10938816

    申请日:2004-09-09

    IPC分类号: A61N2/00

    CPC分类号: A61N1/0541 A61N1/0543

    摘要: A system for movement in a body and performing a function on the body. The system comprises a polymer body portion, an electronic unit carried by the polymer body portion, a circuit in the polymer body portion operatively connected to the electronic unit, pieces in the polymer body portion, and a system for controlling movement of the polymer body portion utilizing magnetic forces controlling movement of the pieces. The system utilizes magnetic guidance to control movement of a polymer body portion.

    摘要翻译: 用于身体运动并在身体上执行功能的系统。 该系统包括聚合物主体部分,由聚合物主体部分承载的电子单元,可操作地连接到电子单元的聚合物主体部分中的电路,聚合物主体部分中的片,以及用于控制聚合物主体部分的运动的系统 利用磁力控制片的运动。 该系统利用磁引导来控制聚合物主体部分的运动。

    Polymer-based platform for microfluidic systems

    公开(公告)号:US07601286B2

    公开(公告)日:2009-10-13

    申请号:US10107933

    申请日:2002-03-26

    IPC分类号: B29C33/76

    摘要: A method of forming a polymer-based microfluidic system platform using network building blocks selected from a set of interconnectable network building blocks, such as wire, pins, blocks, and interconnects. The selected building blocks are interconnectably assembled and fixedly positioned in precise positions in a mold cavity of a mold frame to construct a three-dimensional model construction of a microfluidic flow path network preferably having meso-scale dimensions. A hardenable liquid, such as poly (dimethylsiloxane) is then introduced into the mold cavity and hardened to form a platform structure as well as to mold the microfluidic flow path network having channels, reservoirs and ports. Pre-fabricated elbows, T's and other joints are used to interconnect various building block elements together. After hardening the liquid the building blocks are removed from the platform structure to make available the channels, cavities and ports within the platform structure. Microdevices may be embedded within the cast polymer-based platform, or bonded to the platform structure subsequent to molding, to create an integrated microfluidic system. In this manner, the new microfluidic platform is versatile and capable of quickly generating prototype systems, and could easily be adapted to a manufacturing setting.

    Method for delivering drugs to the adventitia using device having microprojections
    9.
    发明申请
    Method for delivering drugs to the adventitia using device having microprojections 审中-公开
    使用具有微突起的装置将药物递送至外膜的方法

    公开(公告)号:US20050273075A1

    公开(公告)日:2005-12-08

    申请号:US10863043

    申请日:2004-06-08

    摘要: A method for delivering a therapeutic agent into tissue includes providing a device for delivering a therapeutic agent into tissue. The device has an elongated body; a first balloon in the body expandable from a collapsed position to an expanded position; a second balloon in the body expandable from a collapsed position to an expanded position. The second balloon has a plurality of apertures therein; and a therapeutic agent is located in the second balloon. A plurality of microprojections are located on a surface of the second balloon for penetrating tissue. Upon expansion of the first balloon from the collapsed position to the expanded position, the second balloon is expanded from the collapsed position to the expanded position for deploying the plurality of microprojections into tissue and for dispensing the therapeutic agent from the second balloon into the tissue through the plurality of apertures. The device is placed adjacent a site in the tissue; and the therapeutic agent is delivered into the tissue at the site by expanding the first balloon from the collapsed position to the expanded position.

    摘要翻译: 将治疗剂递送到组织中的方法包括提供用于将治疗剂递送到组织中的装置。 该装置具有细长的主体; 主体中的第一气球从折叠位置伸展到展开位置; 主体中的第二气球从折叠位置伸展至展开位置。 第二气球在其中具有多个孔; 并且治疗剂位于第二气囊中。 多个微突出物位于第二球囊的用于穿透组织的表面上。 当第一气囊从折叠位置膨胀到扩张位置时,第二气囊从折叠位置膨胀到扩张位置,用于将多个微突出物展开到组织中,并且用于将治疗剂从第二气囊分配到组织中 多个孔。 该装置放置在组织中的一个位置附近; 并且通过将第一气囊从折叠位置膨胀到扩张位置,将治疗剂递送到该部位的组织中。