Rotary drive in an instrument for processing microscale...

Details Rotary drive in an instrument for processing microscale... Rotary drive in an instrument for processing microscale...

2007-01-30

2007-01-30

Ludlow, Jan M. (Department: 1743)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C360S099080, C360S099120, C369S270100, C369S271100, C436S045000, C422S091000, C422S105000, C422S105000, C494S010000

Reexamination Certificate

active

10244667

ABSTRACT:
The invention relates to a rotary drive adapted for creating liquid flow in rotatable microfluidic discs. A rotary drive for spinning a disc shaped substrate having microfluidic structures formed therein for the flow control of microliter and/or nanoliter volumes of liquid by centrifugal force is suggested, comprising a motor with a spindle having an axis of rotation. A rotary member is connected for rotation with the spindle and driven for rotation relative to a stationary member, the rotary member being formed with a top plane having a centering guide for receiving the disc so as to force a symmetry axis of the disc into alignment with said axis of rotation. A vacuum source is connected with the stationary member and communicating with the rotary member or a part thereof rotating with the rotary member for applying sub-pressure to the disc when spinning the disc about its symmetry axis. Preferably, the rotary member is journalled for contact-free rotation relative to the stationary member.

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