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    • 9. 发明授权
    • Filtered micropipette tip for high/low volume pipettors
    • 用于高/低体积移液器的过滤的微量移液器吸头
    • US5496523A
    • 1996-03-05
    • US239477
    • 1994-05-06
    • Arnona GazitAbraham Yaniv
    • Arnona GazitAbraham Yaniv
    • B01L3/02G01N35/10B01L11/00
    • B01L3/0275G01N35/10B01L2200/141B01L2300/0681G01N2035/1053G01N2035/1055
    • A micro volume, filtered pipette tip device useful with either of two respective pipettors comprising (i) a manual or electronic, air displacement pipettor operable within the approximate range of 0 to 20 microliters and having a relatively long insert tip, and (ii) a manual or electronic, air displacement pipettor operable within the approximate range of 20 to 200 microliters and having a relatively short insert tip. The filtered pipette tip device includes a pipette tip body having insert and fill chambers extending in continuous tapering configuration from the mounting end to the fluid contacting end. A filter is positioned within the axial bore in the intermediate section, providing a dividing barrier between the insert and fill chambers of the pipette tip device. The insert chamber includes a tapering internal wall structure configured to receive a continuously tapering terminal insert portion of each of the two respective pipettors in a snug, sealed fit within the insert chamber. The filter is positioned sufficiently deep within the axial bore and intermediate section of the pipette tip device to allow the terminal end of the insert portion of either of the two respective pipettors to seat within the insert chamber without contacting the filter means.
    • 一种用于两个相应移液器中的任一个的微量的,过滤的移液器吸头装置,包括(i)可在0至20微升的近似范围内操作并具有相对长的插入尖端的手动或电子的置换移液器,以及(ii) 手动或电子式,排气移液器可在大约20至200微升的范围内操作并具有相对短的插入尖端。 过滤的移液器末端装置包括移液管末端体,其具有从安装端到流体接触端以连续锥形构造延伸的插入和填充室。 过滤器定位在中间部分中的轴向孔内,在移液管尖端装置的插入和填充室之间提供分隔壁。 插入室包括锥形内壁结构,其被构造成以两个相应的移液管中的每一个接纳锥形的端子插入部分,该插入部分以插入式腔内的密封配合。 过滤器定位在移液管尖端装置的轴向孔和中间部分内的足够深的位置,以允许两个相应移液器中的任一个的插入部分的末端位于插入室内而不接触过滤装置。