Modular film sensors with record memory for modular automated diagnostic apparatus

A sensor module for use in a modular automated diagnostic analyzer for performing analysis tests on fluid samples, comprising:

• in the diagnostic analyzer,
• a modular sensor chamber for receiving at least one removable sensor module, and
• a fluid passage for conducting fluids to the sensor chamber, and
• a fluid entry module rotatably enclosing the fluid passage for conducting fluids to the modular sensor chamber and having an entry port for the entry of fluids to the modular sensor chamber through the fluid passage and a wiping seal mounted in the fluid entry module and slidably enclosing an aspiration tube in a region extending from the fluid entry port, wherein
• the fluid entry module is rotatably and slidably engaged with the fluid passage to rotate to a plurality of fluid entry positions, whereby
• a sliding motion of the wiping seal with respect to the entry port due to rotation of the fluid entry module between fluid entry positions removes a residue of aspirated fluids from exterior surfaces of the entry port, and wherein
• the at least one removeable sensor module includes
• a sensor module body having a single, unitary sensor fluid passage extending between an input passage and an output passage of the module body and forming a flow path for conducting fluids from the fluid passage through the sensor module, including
• at least one film sensor located on a single substrate and directly in the flow path of the sensor fluid passage for performing measurements of a fluid sample flowing through the sensor chamber;
• and
• a record memory for storing information relating to the at least one film sensor and to the measurements of a fluid sample;
• and
• a processing unit connected to the record memory for reading and writing information pertaining to the sensor module and to the measurements of a fluid sample.