Apparatus and method for cordless recording and telecommunication transmission of three special ecg leads and their processing

A diagnostic system for constructing an ECG of a patient, the system comprising:

• a field unit including a handheld device adapted for placement against the body of the patient in a measurement position to thereby extract special ECG signals for combining with a predetermined calibration matrix, the handheld device comprising:
• at least three integrated active electrodes, including first and second integrated active electrodes adapted to electrically contact the chest of the patient in the measurement position, and a third integrated active electrode adapted to electrically contact the left hand of the patient in the measurement position;
• and
• an integrated reference electrode adapted to electrically contact the right hand of the patient in the measurement position;
• and
• a diagnostic center in communication with the field unit, the diagnostic center configured to receive signals derived from the three integrated active electrodes and construct therefrom, and from said predetermined calibration matrix, an ECG of the patient.

A method for constructing a patient ECG, the method comprising:

• placing against the body of the patient in a measurement position a handheld device having first, second and third integrated active electrodes and an integrated reference electrode;
• extracting from the first and second integrated active electrodes, respectively, first and second electrical signals derived from the chest of the patient;
• extracting from the third integrated active electrode a third electrical signal derived from the left hand of the patient;
• extracting from the integrated reference electrode a reference signal derived from the right hand of the patient;
• communicating signals corresponding to the extracted signals to a diagnostic center;
• and
• combining, at the diagnostic center, the communicated signals with a predetermined calibration matrix to construct an ECG of the patient.