Patent ID: 6959615
Filing Date: 2005-11-01
Classification: G01N,Y10T

Abstract:
1. A sample processing device for liquid sample, intake and discharge from a sample vessel, the device comprising: a body comprising a top portion, a bottom portion and a reduced-diameter chamber; a septum disposed on said top portion of said body; a drip tube comprising a bottom opening and defining a bottom end of said bottom portion of said body, said bottom opening in fluid communication with said septum; a conical needle guide disposed between said septum and said reduced-diameter chamber; and a processing chamber disposed between said bottom opening and said reduced-diameter chamber; wherein a diameter of said reduced-diameter chamber and said bottom opening of said drip tube are less than one half of a diameter of said processing chamber and said drip tube extends downwardly from said body and converges inwardly from said processing chamber to define a drip tube nozzle of diameter sufficiently small for excessive sample to converge into a single drop on said nozzle when said nozzle is inserted and removed from a liquid sample in said sample vessel.