Apparatus and method for transfering small volumes of substances
    78.
    发明申请
    Apparatus and method for transfering small volumes of substances 有权
    用于转移少量物质的装置和方法

    公开(公告)号:US20010018216A1

    公开(公告)日:2001-08-30

    申请号:US09846467

    申请日:2001-04-30

    发明人: Reid B. Kowallis

    IPC分类号: G01N021/00

    摘要: The present invention provides a method and apparatus for dispensing small volumes of selected substances, such as biological reagents or samples, onto substrates. According to one general embodiment, a plurality of spaced, tandemly-arranged substrates are advanced, e.g., by way of a conveyor, along a transport pathway extending over a reagent-supply location, such as a reservoir supported at a fixed position in a base. From a position over the reagent-supply location and the pathway, a reagent-transfer instrument, or tip, is extended along an axis through an intervening region, e.g., an opening defined by a surface of the conveyor, separating an adjacent pair of advancing substrates to contact reagent held at the reagent-supply location. The reagent-transfer instrument is then withdrawn, along with a portion of such reagent, through the intervening region to a position above the transport pathway. Once the conveyor has advanced a selected substrate, upstream of the intervening region, to a position aligned with the axis of the reagent-transfer instrument, a selected amount of reagent is transferred from the instrument onto a selected site of the substrate. Advantageously, the apparatus and method are readily adaptable for the production of micro-arrays having a great number of closely spaced spots.

    摘要翻译: 本发明提供了用于将小体积的选定物质(例如生物试剂或样品)分配到基底上的方法和装置。 根据一个一般实施例,沿着沿着试剂供应位置延伸的输送路径,例如通过输送机前进的多个间隔开的串列布置的基板,例如支撑在基座中的固定位置处的储存器 。 从试剂供应位置和路径上的位置,试剂转移仪器或尖端沿着轴线延伸穿过中间区域,例如由输送机的表面限定的开口,分离相邻的一对前进 接触试剂供应位置的接触试剂的底物。 然后将试剂转移仪器连同一部分这种试剂一起通过中间区域排出到输送通道上方的位置。 一旦输送机将所选择的基板在中间区域的上游推进到与试剂转移仪器的轴线对准的位置,则将选定量的试剂从仪器转移到基板的选定位置。 有利地,该装置和方法容易适用于生产具有大量紧密间隔的点的微阵列。