| 摘要 |
<p>A precision reagent metering and delivery device includes a threaded, disposable reagent container (14) adapted to be threadably receivable within a threaded base (12). Sealably mounted within the reagent container is a plunger (26) having a fluid passageway (40) therethrough which communicates at one end with the interior of the reagent container and at the other end with a fluid delivery tube (34). The plunger is operably coupled with a stator (18) disposed in the base, so that rotation of the reagent container (14) relative to the base (12) will cause precisely predeterminable longitudinal movement of the plunger (26) within the reagent container, whereby the reagent within the container will be controllably forced out the delivery tube (34) in precisely determinable amounts.</p> |
