Featured Research

from universities, journals, and other organizations

Wireless Sensor Systems Enable A Better Sleep

Date:
September 14, 2009
Source:
Interuniversity Microelectronics Centre (IMEC)
Summary:
Researchers have recently presented the clinical validation of a wireless sleep staging system. The miniaturized wireless system allows patients to wear the device in the comfort of their home, thus enabling early screening of abnormal sleep profiles outside clinics.

Wireless sleep monitoring for enhanced patient comfort.
Credit: Courtesy IMEC, Copyright Holst Centre

At IEEE EMB Conference in Minneapolis, Minnesota (USA), IMEC and its research affiliate Holst Centre present the clinical validation of a wireless sleep staging system on September 10. The miniaturized wireless system allows patients to wear the device in the comfort of their home, thus enabling early screening of abnormal sleep profiles outside clinics.

Related Articles


The sleep staging system has been validated in the sleep laboratory at the University Hospital Center (CHU) in Charleroi, Andrι Vιsale Hospital (Belgium), against a commercially available reference system. With this validation, the technology is ready for product development at industry opening new perspectives for remote and comfortable sleep monitoring.

Sleep disorder is a major health problem. 10% of the population of the U.S. is affected by sleep apneas, and 1 billion people worldwide experience some kind of chronic nasal congestion during sleep. IMEC’s wireless sleep staging system which is light weight, wearable and miniaturized can drastically increase the comfort of sleep disorders tests. The system consists of a head band with three sensor nodes measuring 2 EEG-channels (electroencephalogram) to monitor the brain activity, 2 EOG-channels (electro-oculogram) to monitor the eye activity and 1 EMG-channel (electromyogram) to monitor the chin muscle activity. These 5 signals provide the required information for sleep staging according to the Rechtschaffen and Kales standard. The sensor nodes integrate IMEC’s proprietary ultra-low power biopotential read-out ASIC (application-specific integrated circuit) to amplify and filter the 5 different ExG signals. The measured ExG signals are wirelessly transmitted to the recording computer. No additional wires from the head to the body or from the head to the recording device are needed, making the system comfortable to wear. The system is optimized for low power resulting in 12 hours autonomy.

The system has been validated in a controlled clinical environment and benchmarked with state-of-the-art ambulatory monitoring equipment. 12 healthy volunteers were enrolled in the study, and were monitored for a complete night using the wireless and the reference systems set-up in parallel. At the end of the study, the signals were given to a sleep expert for blind scoring, leading to two hypnograms for each subject. From the hypnograms, sleep statistics such as percentage of sleep time in each stage were deducted, and compared for the two systems. Hypnograms were also compared directly for similarity. The analysis proved the potential of wireless sleep staging systems to replace the current monitoring systems.

Within the Human++ program, IMEC and Holst Centre aim to develop solutions for an efficient and better healthcare. Wireless sensor nodes in intelligent body area networks may provide more comfortable healthcare systems by enabling home monitoring of patients. Home monitoring does not only increase the comfort of the patient, it is also a cost-efficient solution for expensive and time-consuming monitoring in hospitals. Moreover, wireless monitoring systems provide more natural daily life monitoring results. Industry can get access to the technology by joining the Human++ program as research partner or by licensing agreements for further product development.


Story Source:

The above story is based on materials provided by Interuniversity Microelectronics Centre (IMEC). Note: Materials may be edited for content and length.


Cite This Page:

Interuniversity Microelectronics Centre (IMEC). "Wireless Sensor Systems Enable A Better Sleep." ScienceDaily. ScienceDaily, 14 September 2009. <www.sciencedaily.com/releases/2009/09/090902122334.htm>.
Interuniversity Microelectronics Centre (IMEC). (2009, September 14). Wireless Sensor Systems Enable A Better Sleep. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2009/09/090902122334.htm
Interuniversity Microelectronics Centre (IMEC). "Wireless Sensor Systems Enable A Better Sleep." ScienceDaily. www.sciencedaily.com/releases/2009/09/090902122334.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

AFP (Nov. 23, 2014) — The arable district of Kenema in Sierra Leone -- at the centre of the Ebola outbreak in May -- has been under quarantine for three months as the cocoa harvest comes in. Duration: 01:32 Video provided by AFP
Powered by NewsLook.com
WFP: Ebola Risks Heightened Among Women Throughout Africa

WFP: Ebola Risks Heightened Among Women Throughout Africa

AFP (Nov. 21, 2014) — Having children has always been a frightening prospect in Sierra Leone, the world's most dangerous place to give birth, but Ebola has presented an alarming new threat for expectant mothers. Duration: 00:37 Video provided by AFP
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) — Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) — Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins