3-coil wireless power transfer system for eye implants

    公开(公告)号:US10251780B2

    公开(公告)日:2019-04-09

    申请号:US14749487

    申请日:2015-06-24

    Abstract: A three-coil electromagnetic induction power transfer system is disclosed for epiretinal prostheses and other implants. A third, buffer coil is disposed between an external transmitting coil and a receiver coil buried within the body to improve efficiency and robustness to misalignments. One or more of the coils can be manufactured using micromechanical machining techniques to lay out conductors in a ribbon of biocompatible insulator, folding lengths of the insulated conductor traces longitudinally over one another, and then spiraling them into a ring. The traces change axial position in the ring by shifting across fold lines. One or more U-shaped sections on the traces can be folded so that adjacent traces can project opposite one another, lengthening the resulting ribbon that can be wound into a coil.

    Implantable device for retaining live cells and providing nutrients thereto

    公开(公告)号:US10092387B2

    公开(公告)日:2018-10-09

    申请号:US15274229

    申请日:2016-09-23

    Abstract: An implantable medical device, a method of manufacturing, and a method of use are described. The implantable medical device includes an absorption bag connected by a cannula to a discharge bag. The implantable medical device also includes a reservoir external to the discharge bag and attached to a surface of the discharge bag. At least a portion of the absorption bag and at least a portion of a bottom surface of the reservoir are permeable to a predefined class of small molecules, such as molecular oxygen. The reservoir can retain live cells that rely on the small molecules for survival and growth. Based on concentration of the small molecules, the small molecules permeate into the absorption bag and are transported to the discharge bag for permeation into the reservoir, thereby providing a supply of the small molecules to the live cells.

    IN-SITU HEATED DEPOSITION OF PARYLENE TO ENHANCE PORE PENETRATION INTO SILICONE
    98.
    发明申请
    IN-SITU HEATED DEPOSITION OF PARYLENE TO ENHANCE PORE PENETRATION INTO SILICONE 审中-公开
    加速渗透沉淀到硅胶中的原位加热沉淀

    公开(公告)号:US20170009097A1

    公开(公告)日:2017-01-12

    申请号:US15276328

    申请日:2016-09-26

    Abstract: A composition of matter is described in which a porous material, such as polydimethylsiloxane (PDMS), is coated with parylene N, C, D, or AF-4 by vapor deposition polymerization while a temperature of the porous material's surface being coated is heated to between 60° C. and 120° C., or 80° C. and 85° C., during deposition. The parylene forms nano roots within the porous material that connect with a conformal surface coating of parylene. In some embodiments, a watertight separation chamber in an integrated microfluidic liquid chromatography device is fabricated by heating tunnels in micro-fabricated PDMS and depositing parylene within the heated tunnels.

    Abstract translation: 描述了一种物质组合物,其中诸如聚二甲基硅氧烷(PDMS)的多孔材料通过气相沉积聚合被聚对二甲苯N,C,D或AF-4涂覆,同时将多孔材料被涂覆的表面的温度加热到 在60℃至120℃,或80℃和85℃之间。 聚对二甲苯形成多孔材料内的纳米根,其与聚对二甲苯的共形表面涂层连接。 在一些实施方案中,集成的微流体液相色谱装置中的水密分离室通过在微制造的PDMS中加热隧道并在加热的隧道内沉积聚对二甲苯来制造。

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