Inventors:
Vijay Mathur - Burlington MA, US
Tyler Cote - Acton MA, US
Ronald Jones - Newton NH, US
Jane Sun - Acton MA, US
Steve Rettew - Harvard MA, US
Chen Yi - Woburn MA, US
Tony Mao - Natick MA, US
Will Whelan - Arlington MA, US
Ken Galano - Wrenham MA, US
Richard Dussault - North Attleboro MA, US
International Classification:
G01N001/00
Abstract:
A modular automated diagnostic analyzer having a fluid entry module for sample aspiration, a valve module for selecting fluids and a pump module for fluidic movement so that a biological sample does not come into contact with the valve system through which calibrants and air are introduced to the fluid path. The fluid entry module encloses an aspiration tube rotatably and slidably engaged with the analysis mechanism chassis to move to different positions for the introduction of fluids into the analysis apparatus from different types of sample containers. A wiping seal removes residues of aspirated fluids from the exterior surfaces of the aspiration tube with the residue being aspirated into the analysis apparatus for disposal. Sensor modules mounted in a sensor chamber are structured to mechanically stack and interlock and include film sensors with use life record memories and each sensor module includes a fluid tight sealed passage and a sensor element. A fluid selection valve of highly polished ceramic material allows a valve cylinder passage to be selectively connected to fluid sources.