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Ambulatory Electrocardiography Monitor Recorder Optimized For Internal Signal Processing

  • US 20170209064A1
  • Filed: 04/10/2017
  • Published: 07/27/2017
  • Est. Priority Date: 09/25/2013
  • Status: Active Grant
First Claim
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1. An ambulatory electrocardiography monitor recorder optimized for internal signal processing, comprising:

  • a wearable housing adapted to be coupled to a pair of electrocardiographic electrodes that are fitted for dermal placement along the sternal midline; and

    an electronic circuitry provided within the wearable housing and comprising;

    an electrocardiographic front end circuit under the control of a microcontroller and configured to output electrocardiographic signals representative of cardiac activation wave front amplitudes, comprising;

    a signal lead operable to sense cardiac electrical potentials dermally through one of the electrocardiographic electrodes;

    a reference lead operable to sense cardiac electrical potentials dermally through the other of the electrocardiographic electrodes;

    an operational amplifier that amplifies a current of the sensed electrocardiographic potentials;

    a high pass filter that is applied to the electrocardiographic potentials whose current was amplified by the operational amplifier;

    a further operational amplifier that amplifies voltage of the electrocardiographic potentials filtered by the high pass filter; and

    an anti-aliasing filter applied to the electrocardiographic potentials with the amplified voltage prior to the output of the electrocardiographic potentials as the electrocardiographic signals;

    a low power microcontroller operable to execute over an extended period under modular micro program control as specified in firmware and further operable to acquire samples of the output electrocardiographic signals; and

    a non-volatile memory electrically interfaced with the microcontroller and operable to continuously store the samples of the electrocardiographic signals throughout the extended period.

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