Extended wear ambulatory electrocardiography and physiological sensor monitor

An extended wear electrocardiography and physiological sensor monitor, comprising:

• an electrode patch, comprising:
• a flexible backing formed of an elongated strip;
• a pair of electrocardiographic electrodes conductively exposed on a contact surface of each end of the elongated strip;
• a receptacle adhered to an outward-facing side of the elongated strip opposite the contact surface and comprising a plurality of electrical pads;
• a battery electrically interfaced to a pair of the electrical pads on the receptacle;
• and
• a flexible circuit affixed on each end of the elongated strip and comprising a pair of circuit traces electrically coupled to the pair of electrocardiographic electrodes and another pair of the electrical pads;
• and
• an electrocardiography monitor having a sealed housing formed as a rounded isosceles trapezoid shape with a substantially straight edge on a proximal end that is longer than a substantially straight edge on a distal end and configured to be removably secured into the receptacle on the electrode patch and comprising:
• a set of electrical contacts that protrude from a bottom surface on the proximal end of the sealed housing and correspond with further electrical pads on the receptacle;
• a patient feedback button located on the proximal end of the sealed housing on a surface opposite the electrical contacts on the bottom surface;
• and
• electronic circuitry comprised within the sealed housing, comprising:
• a micro-controller operable to execute under micro-programmable control;
• an electrographic front end circuit electrically interfaced to the micro-controller and operable to sense electrocardiographic signals through the electrocardiographic electrodes provided on the electrode patch;
• a micro-controller electrically interfaced to the electrocardiographic front end circuit and operable to execute under micro-programmable control to sample the electrocardiographic signals sensed by the electrocardiographic front end circuit, to stage each electrocardiographic signal sample in a buffer, to compress each of the staged electrocardiographic signal samples, to further buffer each of the compressed electrocardiographic signal samples, and to write the buffered electrocardiographic signal samples to memory;
• and
• a flash memory electrically interfaced with the micro-controller and operable to store the buffered samples of the electrocardiographic signals.