System and method for calibrating a remote blood pressure system

A method of calibrating a system for determining blood pressure based on pulse wave transit time comprising:

• initiating, by a gateway device, a calibration mode;
• establishing, by the gateway device, a first connection between the gateway device and a monitoring device mounted on a body of a patient;
• establishing, by the gateway device, a second connection between the gateway device and a digital sphygmomanometer;
• receiving, by the gateway device, first collected data from the monitor device, wherein the first collected data includes ECG raw data and PPG raw data;
• receiving, by the gateway device, second collected data from the digital sphygmomanometer, wherein the second collected data includes systolic/diastolic pressure information indicative of a blood pressure of the patient obtained using a cuff positioned on the patient's body;
• checking, by the gateway device, the first collected data and the second collected data for errors;
• packaging, by the gateway device, the first collected data and the second collected data with other data, wherein the other data includes at least a time stamp;
• calculating, by the gateway device, one or more calibration coefficients based on the first collected data, second collected data and the other data wherein the calculating step includes:
• using a first linear equation associated with a systolic pressure number to determine the one or more calibration coefficients;
• and
• using a second linear equation associated with a diastolic pressure number to determine the one or more coefficients;
• and
• storing, by the gateway device, the one or more calibration coefficients in a memory operatively connected to the gateway device.