14-02-2013, 09:58 AM
e-Cardiac Analyzer with Multitouch Zoom, Record-Playback and SMS Alert
[attachment=50795]
Abstract
Basic functions of an ECG machine include ECG waveform display, through LCD screen and
heart rhythm indication as well as simple user interface through buttons. This is an old definition now.
More features, such as patient record storage through convenient media, wireless/wired transfer and
2D/3D display on large LCD screen with touch screen capabilities, are required in present day ECG
products. The device should have multiple levels of diagnostic capabilities to assist doctors and people
without specific ECG trainings to understand ECG patterns and their indication of a certain heart
condition.
The project aim is to design a next generation portable digital cardiac signal recorder and
analyzer device that will be worn by patients who need to be monitored continuously for cardiac
anomalies. The device measures and records electrocardiogram (ECG/EKG) signals over a period of 24
hours or more (even up to a week). The recorded EKG signal is simultaneously analyzed for unusual heart
activity like Cardiac Arrhythmias (abnormal heart beat). If it finds any abnormality an alert SMS will
be sent to the doctor indicating the kind of problem identified. This helps the doctor to prepare for the
treatment the patient would need when he arrives.
The doctor could also playback the signals and see what happened over the recorded duration.
The signals could be Fast Forwarded and Rewinded in time to make the process easier. The doctor
could pause the ECG signal playback at any point of time and use the next generation Multitouch Zoom
facility to enlarge that part of ECG signal to analyze it a little deeper and he could always resume from
where he paused.
In our project the device shows the signals on a 65K Color QVGA TFT Touchscreen Graphics
LCD display and recording medium is a 2GB microSD flash memory card. The device is controlled by a
32-bit ARM Cortex-M3 microcontroller that handles the Graphics Library for Touchscreen display,
samples the signal from ECG Analog Front End using the built in multi-channel ADC Converter, uses
the SPI port to read and write to the microSD card.
[attachment=50795]
Abstract
Basic functions of an ECG machine include ECG waveform display, through LCD screen and
heart rhythm indication as well as simple user interface through buttons. This is an old definition now.
More features, such as patient record storage through convenient media, wireless/wired transfer and
2D/3D display on large LCD screen with touch screen capabilities, are required in present day ECG
products. The device should have multiple levels of diagnostic capabilities to assist doctors and people
without specific ECG trainings to understand ECG patterns and their indication of a certain heart
condition.
The project aim is to design a next generation portable digital cardiac signal recorder and
analyzer device that will be worn by patients who need to be monitored continuously for cardiac
anomalies. The device measures and records electrocardiogram (ECG/EKG) signals over a period of 24
hours or more (even up to a week). The recorded EKG signal is simultaneously analyzed for unusual heart
activity like Cardiac Arrhythmias (abnormal heart beat). If it finds any abnormality an alert SMS will
be sent to the doctor indicating the kind of problem identified. This helps the doctor to prepare for the
treatment the patient would need when he arrives.
The doctor could also playback the signals and see what happened over the recorded duration.
The signals could be Fast Forwarded and Rewinded in time to make the process easier. The doctor
could pause the ECG signal playback at any point of time and use the next generation Multitouch Zoom
facility to enlarge that part of ECG signal to analyze it a little deeper and he could always resume from
where he paused.
In our project the device shows the signals on a 65K Color QVGA TFT Touchscreen Graphics
LCD display and recording medium is a 2GB microSD flash memory card. The device is controlled by a
32-bit ARM Cortex-M3 microcontroller that handles the Graphics Library for Touchscreen display,
samples the signal from ECG Analog Front End using the built in multi-channel ADC Converter, uses
the SPI port to read and write to the microSD card.