Calibration for multi-stage physiological monitors

An acoustic physiological monitor configured to determine an acoustic physiological parameter of a patient, the acoustic physiological monitor comprising:

• a signal processor configured to receive, via a multi-stage sensor assembly, a signal indicative of physiological sounds associated with a patient, the multi-stage sensor assembly including at least a first stage and a second stage;
• and
• an information element query module configured to obtain calibration information from one or more information elements provided in each of at least the first stage and the second stage, the calibration information including at least a first characteristic associated with the first stage and a second characteristic associated with the second stage,
• wherein the signal processor is further configured to:
• adjust one or more signal processing parameters of the signal processor based on the first characteristic and the second characteristic;
• based on the adjusted one or more signal processing parameters, generate a modified version of the signal indicative of physiological sounds associated with the patient;
• and
• determine an acoustic physiological parameter of the patient based upon the modified version of the signal.

A method of determining an acoustic physiological parameter of a patient with an acoustic physiological monitor, the method comprising:

• receiving, via a multi-stage sensor assembly, a signal indicative of physiological sounds associated with a patient, the multi-stage sensor assembly including at least a first stage and a second stage;
• obtaining calibration information from one or more information elements provided in each of at least the first stage and the second stage, the calibration information including at least a first characteristic associated with the first stage and a second characteristic associated with the second stage;
• adjusting one or more signal processing parameters of the signal processor based on the first characteristic and the second characteristic;
• based on the adjusted one or more signal processing parameters, generating a modified version of the signal indicative of physiological sounds associated with the patient;
• and
• determining an acoustic physiological parameter of the patient based upon the modified version of the signal.