公开(公告)号：US4245509A

公开(公告)日：1981-01-20

申请号：US21069

申请日：1979-03-16

申请人： Dinesh I. Mody ,  Carolyn Bergkvist ,  Gustav H. Dreier

发明人： Dinesh I. Mody ,  Carolyn Bergkvist ,  Gustav H. Dreier

IPC分类号： G01N1/00 ,  G01N1/38 ,  G01N1/14

CPC分类号： G01N35/1097 ,  G01N1/38 ,  G01N2001/382

摘要： Sampling apparatus designed for aspirating, diluting and mixing a small sample of fluid in precise amounts and delivering the mixture to a scientific apparatus at a place remote from the place of aspiration. Operation of the device may be manual but is preferably automatic. The apparatus is designed to process a plurality of sample fluids with no cross-contamination between samples. In essence, the apparatus is a fluid handling system including a sample pick-up assembly in fluid communication with an automatic valve assembly having two operative positions. The automatic valve assembly is in fluid communication with a dilutor assembly having a sample pump and a diluent pump operable by a common means. A mixing and delivery assembly is also in fluid communication with the automatic valve assembly and includes a cup designed for bidirectional rotation with an annular space about the cup. A dispensing probe dispenses into the cup precise amounts of sample and diluent in a predetermined ratio to each other and, following rotation of the cup to achieve the mixture of sample and diluent, an aspirator probe enters the mixture and delivers an amount thereof to an adjacent scientific instrument. The apparatus further includes a means for expelling the remainder of the mixture from the cup into the annular space surrounding the cup, and from there through a valve, to waste.

摘要翻译： 采样设备设计用于精确量吸入，稀释和混合小样本的流体，并将混合物输送到远离抽吸位置的地方的科学仪器。 设备的操作可以是手动的，但是优选是自动的。 该设备被设计成在样品之间没有交叉污染的情况下处理多个样品流体。 实质上，该装置是一种流体处理系统，其包括与具有两个操作位置的自动阀组件流体连通的样品拾取组件。 自动阀组件与具有可由常用装置操作的样品泵和稀释剂泵的稀释器组件流体连通。 混合和输送组件还与自动阀组件流体连通，并且包括设计成用于围绕杯的环形空间进行双向旋转的杯。 分配探针以预定的比例将精确量的样品和稀释剂分配到杯中，并且在杯的旋转以实现样品和稀释剂的混合物之后，吸气探针进入混合物并将其量递送到相邻的 科学仪器。 该装置还包括将混合物的剩余部分从杯子排出到围绕杯子的环形空间中并从那里通过阀排出的装置，以浪费。