Point-of-care medical diagnostic analyzer and devices, systems, and methods for medical diagnostic analysis of samples

An analyzer, comprising:

• an inner chassis;
• a housing surrounding the inner chassis;
• a sample probe operably coupled to the inner chassis within the housing and movable relative thereto;
• a dilution probe operably coupled to the inner chassis within the housing and movable relative thereto;
• a mixing housing supported on the inner chassis within the housing, the mixing housing defining a first mixing chamber and a second mixing chamber, each of the first and second mixing chambers configured to receive dilution fluid;
• a flow cytometer supported on the inner chassis within the housing, the flow cytometer including a flow cell;
• a sample pump disposed within the housing and configured to perform a first plurality of tasks including:
• aspirating sample into the sample probe, dispensing sample from the sample probe into the first mixing chamber, dispensing sample from the sample probe into the second mixing chamber, delivering first sample-dilution fluid mixture to the flow cell, and delivering second sample-dilution fluid mixture to the flow cell;
• a sheath pump disposed within the housing and configured to perform a second plurality of tasks including:
• dispensing sheath to the flow cell in cooperation with the delivery of the first sample-dilution fluid mixture to the flow cell, and dispensing sheath to the flow cell in cooperation with the delivery of the second sample-dilution fluid mixture to the flow cell;
• and
• a carrier supporting the sample probe and the dilution probe in fixed orientation relative to one another, the carrier operably coupled to the inner chassis within the housing and movable relative thereto to thereby move both the sample probe and the dilution probe in the fixed orientation to operably position the sample probe for enabling a first subset of the first and second pluralities of tasks, and to operably position the dilution probe for enabling a second, different subset of the first and second plurality of tasks.