Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring

We present a new type of non-contact sensor for use in ambulatory cardiac monitoring. The sensor operation is based on a microwave Doppler technique; however, instead of detecting the heart activity from a distance, the sensor is placed on the patient's chest over the clothing. The microwave se...

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Main Authors: Fletcher, Richard Ribon, Kulkarni, Sarang
Other Authors: Massachusetts Institute of Technology. Media Laboratory
Format: Article
Language:en_US
Published: Institute of Electrical and Electronics Engineers (IEEE) 2012
Online Access:http://hdl.handle.net/1721.1/69033
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author Fletcher, Richard Ribon
Kulkarni, Sarang
author2 Massachusetts Institute of Technology. Media Laboratory
author_facet Massachusetts Institute of Technology. Media Laboratory
Fletcher, Richard Ribon
Kulkarni, Sarang
author_sort Fletcher, Richard Ribon
collection MIT
description We present a new type of non-contact sensor for use in ambulatory cardiac monitoring. The sensor operation is based on a microwave Doppler technique; however, instead of detecting the heart activity from a distance, the sensor is placed on the patient's chest over the clothing. The microwave sensor directly measures heart movement rather than electrical activity, and is thus complementary to ECG. The primary advantages of the microwave sensor includes small size, light weight, low power, low-cost, and the ability to operate through clothing. We present a sample sensor design that incorporates a 2.4 GHz Doppler circuit, integrated microstrip patch antenna, and microntroller with 12-bit ADC data sampling. The prototype sensor also includes a wireless data link for sending data to a remote PC or mobile phone. Sample data is shown for several subjects and compared to data from a commercial portable ECG device. Data collected from the microwave sensor exhibits a significant amount of features, indicating possible use as a tool for monitoring heart mechanics and detection of abnormalities such as fibrillation and akinesia.
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spelling mit-1721.1/690332022-09-27T16:38:18Z Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring Fletcher, Richard Ribon Kulkarni, Sarang Massachusetts Institute of Technology. Media Laboratory Fletcher, Richard Ribon Fletcher, Richard Ribon Kulkarni, Sarang We present a new type of non-contact sensor for use in ambulatory cardiac monitoring. The sensor operation is based on a microwave Doppler technique; however, instead of detecting the heart activity from a distance, the sensor is placed on the patient's chest over the clothing. The microwave sensor directly measures heart movement rather than electrical activity, and is thus complementary to ECG. The primary advantages of the microwave sensor includes small size, light weight, low power, low-cost, and the ability to operate through clothing. We present a sample sensor design that incorporates a 2.4 GHz Doppler circuit, integrated microstrip patch antenna, and microntroller with 12-bit ADC data sampling. The prototype sensor also includes a wireless data link for sending data to a remote PC or mobile phone. Sample data is shown for several subjects and compared to data from a commercial portable ECG device. Data collected from the microwave sensor exhibits a significant amount of features, indicating possible use as a tool for monitoring heart mechanics and detection of abnormalities such as fibrillation and akinesia. MIT Media Lab Consortium 2012-02-03T19:56:23Z 2012-02-03T19:56:23Z 2010-08 2010-04 Article http://purl.org/eprint/type/ConferencePaper 978-1-4244-4124-2 978-1-4244-4123-5 1557-170X INSPEC Accession Number: 11650693 http://hdl.handle.net/1721.1/69033 Fletcher, R R, and S Kulkarni. “Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring.” IEEE, 2010. 365-369. Web. 3 Feb. 2012. Fletcher, R R, and S Kulkarni. © 2010 Institute of Electrical and Electronics Engineers 21097186 en_US http://dx.doi.org/10.1109/IEMBS.2010.5627972 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2010. EMBC 2010. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers (IEEE) IEEE
spellingShingle Fletcher, Richard Ribon
Kulkarni, Sarang
Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring
title Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring
title_full Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring
title_fullStr Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring
title_full_unstemmed Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring
title_short Clip-on wireless wearable microwave sensor for ambulatory cardiac monitoring
title_sort clip on wireless wearable microwave sensor for ambulatory cardiac monitoring
url http://hdl.handle.net/1721.1/69033
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