Electrical stimulator for biological tissue utilizing linear current
output circuit
    7.
    发明授权
    Electrical stimulator for biological tissue utilizing linear current output circuit 失效
    电刺激器用于生物组织利用线性电流输出电路

    公开(公告)号:US4686991A

    公开(公告)日:1987-08-18

    申请号:US745212

    申请日:1985-06-17

    IPC分类号: A61N1/32 A61N1/36

    CPC分类号: A61N1/36021

    摘要: An electrical stimulator for biological tissue utilizing a linear current output circuit. A digital-to-analog circuit converts a digital output word to an analog value and feeds a current amplifier having negative feedback. The output current of the amplifier is transformer driven through a push-pull transistor network. A reference impedance provides a voltage indicative of the current output which is fed back to an operational amplifier.

    摘要翻译: 一种利用线性电流输出电路的生物组织电刺激器。 数模转换电路将数字输出字转换为模拟值,并馈送具有负反馈的电流放大器。 放大器的输出电流通过推挽晶体管网络进行变压器驱动。 参考阻抗提供指示电流输出的电压,其被反馈到运算放大器。

    MULTILAYER PROCESSING DEVICES AND METHODS
    9.
    发明申请
    MULTILAYER PROCESSING DEVICES AND METHODS 有权
    多层加工设备和方法

    公开(公告)号:US20100183479A1

    公开(公告)日:2010-07-22

    申请号:US12749763

    申请日:2010-03-30

    IPC分类号: G01N21/01 B32B38/10 B32B38/04

    摘要: Sample processing devices that include transmissive layers and control layers to reduce or eliminate cross-talk between process chambers in the processing device are disclosed. The transmissive layers may transmit significant portions of signal light and/or interrogation light while the control layers block significant portions of signal light and/or interrogation light. Methods of manufacturing processing devices that include transmissive layers and control layers are also disclosed. The methods may involve continuous forming processes including co-extrusion of materials to form the transmissive layer and control layer in a processing device, followed by formation of the process chambers in the control layer. Alternatively, the methods may involve extrusion of materials for the control layer, followed by formation of process chambers in the control layer.

    摘要翻译: 公开了包括透射层和控制层以减少或消除处理装置中的处理室之间的串扰的样品处理装置。 透射层可以传输信号光和/或询问光的大部分,同时控制层阻挡信号光和/或询问光的重要部分。 还公开了制造包括透射层和控制层的处理装置的方法。 所述方法可以包括连续的成形方法,包括共挤出材料以在处理装置中形成透射层和控制层,随后在控制层中形成处理室。 或者,所述方法可以包括挤出用于对照层的材料,随后在对照层中形成处理室。