Diastolic Blood Pressure Measurement Calibration

A blood pressure measuring device, comprising:

• one or more arterial measurement sensors configured to measure arterial distension when positioned at a measurement location on a subject's body;
• one or more elevation sensors configured to measure elevations of the measurement location;
• and
• a processor coupled to the one or more arterial measurement sensors and the one or more elevation sensors, and configured to:
• determine based on measurements of arterial distension by the one or more arterial measurement sensors a pulse waveform representing an arterial pressure as a function of time for each pulse of a series of blood pressure pulses;
• receive, from the one or more elevation sensors, one or more elevations of the measurement location;
• identify at least one pulse in the series of blood pressure pulses that represents a transitional pulse based on one or more characteristics of the at least one pulse;
• and
• determine a diastolic blood pressure based on the at least one identified pulse and at least one elevation from the one or more elevations that correspond to the at least one identified pulse.

A blood pressure measuring device, comprising:

• one or more arterial measurement sensors configured to measure arterial distension when positioned at a measurement location on a subject's body;
• one or more elevation sensors configured to measure elevations of the measurement location;
• means for receiving, from the one or more arterial measurement sensors, a pulse waveform representing an arterial pressure as a function of time for each pulse of a series of blood pressure pulses, wherein the series of blood pressure pulses are correlated to arterial distension at the measurement location of the one or more arterial measurement sensors on the subject's body;
• means for receiving, from the one or more elevation sensors, one or more elevations of the measurement location;
• means for identifying at least one pulse in the series of blood pressure pulses that represents a transitional pulse based on one or more characteristics of the at least one pulse;
• and
• means for determining a diastolic blood pressure based on the at least one identified pulse and at least one elevation from the one or more elevations that correspond to the at least one identified pulse.

A non-transitory processor-readable medium having stored there on processor-executable instructions configured to cause a processor of a blood pressure device to perform operations comprising:

• receiving, from one or more arterial measurement sensors, a pulse waveform representing an arterial pressure as a function of time for each pulse of a series of blood pressure pulses, wherein the series of blood pressure pulses are correlated to arterial distension at a measurement location of the one or more arterial measurement sensors on a subject's body;
• receiving, from one or more elevation sensors, one or more elevations of the measurement location;
• identifying, by the processor, at least one pulse in the series of blood pressure pulses that represents a transitional pulse based on one or more characteristics of the at least one pulse;
• and
• determining, by the processor, a diastolic blood pressure based on the at least one identified pulse and at least one elevation from the one or more elevations that correspond to the at least one identified pulse.