Apparatus for monitoring the pulse of a person and a method thereof
AssigneeWell Being Digital Limited
InventorMing Yip Wallace Wong
Life of this patent
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Abstract
A wearable device in the form of a tee-shirt is described. The sleeves of the tee-shirt having an electrocardiogram (ECG) sensor, a photoplethysmogram (PPG) sensor or a ballistocardiogram (BCG) sensor for monitoring the pulse of a person wearing the tee-shirt. The tee-shirt makes possible the comparison of the pulses down the two arms. The pulse-transit-time, pulse amplitude, pulse spread and pulse shape may be compared to observe any difference between the left and right sides of the person.
Claims6
An apparatus for monitoring the difference in pulses of a left side and a right side of a person, comprising:
- a piece of clothing suitable for being worn on a body of the person;
- the clothing having two sleeves, each suitable for the person's respective limbs to be inserted through;
- along each of the sleeves is a stretchable neck for hugging a respective limb;
- an electrocardiogram (ECG) device for detecting electrocardiogram (ECG) pulse, wherein:
- the piece of clothing further comprises one or more photoplethysmogram (PPG) sensors in the stretchable neck of each sleeve;
- such that the stretchable neck urges the one or more photoplethysmogram (PPG) sensors into contact with a skin of the respective limb, and
- a microcontroller configured to identify the electrocardiogram (ECG) pulse and the photoplethysmogram (PPG) pulse of each sleeves as being from the same heartbeat;
- wherein the microcontroller measures the pulse transit time between the ECG signal and the PPG signal.
A method of monitoring the difference in pulses of a left and a right side of a person, comprising the steps of:
- obtaining an electrocardiogram (ECG) pulse of a heartbeat by the electrocardiogram (ECG);
- obtaining a left pulse of the same heartbeat in a left limb of an upper or a lower part of a body;
- obtaining a right pulse of the same heartbeat in a right limb in the same lower or the upper part of the body;
- observing a difference between the pulses in one or more of the following pulse characteristics:
- a pulse-transit-time of the pulse;
- wherein
- the left pulse of the heartbeat in the left limb is obtained by a photoplethysmogram (PPG), and
- the right pulse of the same heartbeat in the right limb is obtained by the photoplethysmogram (PPG);
- wherein
- the pulse-transit-time of the left pulse is referenced from the electrocardiogram (ECG) pulse;
- the pulse-transit-time of the right pulse is referenced from the electrocardiogram (ECG) pulse;
- and
- comparing the pulses of the left limb and the right limb.
Dependencies are inferred from the claim text.