Navigation Links
Catching a breath -- wirelessly
Date:9/18/2011

asurements from conventional breathing monitors. The motion of the chest and abdomen during breathing impedes the wireless radio signals crisscrossing a bedridden patient, who in the study was Patwari himself. Each of the 20 transceivers or "nodes" can transmit and receive to the other 19, meaning there can be up to 380 measurements (20 times 19) of radio signal strength within a short period of time (the transceivers transmit one after the other).

The study was conducted in a clinical room used for research at the University of Utah School of Medicine's Department of Anesthesiology. Patwari reclined on a hospital bed and listened to a metronome to time his breathing so he inhaled and exhaled 15 times per minute about the average breathing rate for a resting adult.

His breathing was measured two ways: by the experimental wireless network, and by a carbon dioxide monitor connected to his nostrils by tubes. It calculated breathing rate by measuring the amount of carbon dioxide exhaled with each breath. Patwari also tested the wireless network with no one in the hospital bed.

The study found the wireless network could measure breathing within 0.4 to 0.2 breaths per minute, an insignificant error rate given that most breathing monitors round to the nearest breath per minute, he says. If a bedridden person or baby moves, the wireless system detects the movement but cannot measure their breathing at the same time.

To decide if someone is breathing or not, the wireless system uses a computer algorithm basically, a set of formulas. Patwari says his algorithm squares the amplitude or loudness of the signal on each link between nodes, then averages it over all 380 links. A number larger than 1.5 indicates breathing has been detected.

Patwari also measured how many nodes were required to measure breathing accurately. The minimum was 13 nodes or transceivers, while the rate of incorrect breathing measurements fell to zero when 19 n
'/>"/>

Contact: Lee Siegel
lee.siegel@utah.edu
801-581-8993
University of Utah
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Catching the West Nile virus in action
2. Catching calcium waves could provide Alzheimers insights
3. Catching a killer one spore at a time
4. Catching the common cold virus genome
5. Scientists utilise breath and sweat to detect trapped humans
6. The breathtaking dance of plants
7. Laser beam makes cells breathe in water and potentially anti-cancer drugs
8. Hold your breath: Air pollution plays role in cardiac, metabolic diseases
9. New breathing therapy reduces panic and anxiety by reversing hyperventilation
10. New imaging advance illuminates immune response in breathing lung
11. Discovery of taste receptors in the lungs could help people with asthma breathe easier
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Catching a breath -- wirelessly
(Date:9/30/2014)... California, San Diego, have completed the first comprehensive numerical ... uses the pixels in an image as data points ... , The researchers, led by J.S. Chen, the William ... of Engineering at UC San Diego, presented their findings ... conference in Pittsburgh this month. Chen also gave a ...
(Date:9/30/2014)... Health (NIH) awarded Lawrence Livermore National Laboratory (LLNL) ... system that will enable researchers to better understand ... scale. , LLNL,s grant-funded project is part of ... (Brain Research through Advancing Innovative Neurotechnologies) Initiative , ... of the human mind and uncover ways to ...
(Date:9/30/2014)... Fish can live in almost any aquatic environment on ... up many species are pushed to the limit. The ... could prove critical for how different species cope in ... the University of Gothenburg, published in the scientific journal ... Climate change continues apace thanks to increasing levels of ...
Breaking Biology News(10 mins):First comprehensive meshfree numerical simulation of skeletal muscle tissue achieved 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 2NIH taps lab to develop sophisticated electrode array system to monitor brain act 3Shape up quickly -- applies to fish, too! 2
... of modern human behaviour and technological advancement among our ... has taken a step closer to firmly establishing Africa, ... the early development of human behaviour. A new ... Henshilwood, is the first detailed summary of the time ...
... 5, 2012  In a partnership that brings new personalization ... is now enabling its members to transmit body monitoring ... their online trainers. The integration gives FitOrbit trainers access ... activity level and sleep pattern data that helps trainers ...
... Four University of Massachusetts Medical School faculty members ... the American Association for the Advancement of Science (AAAS), ... the journal, Science . They include: ... & physiological systems, who was elected to the section ...
Cached Biology News:Africa's Homo sapiens were the first techies 2BodyMedia & FitOrbit Up the Ante in Personalized Weight Loss 2BodyMedia & FitOrbit Up the Ante in Personalized Weight Loss 3UMass Medical School faculty elected to the American Association for the Advancement of Science 2
(Date:9/30/2014)... Applying a well-known optical phenomenon called thin-film interference, ... demonstrated the ability to "paint" ultra-thin coatings onto ... for making future, flexible electronic devices, creating advanced ... rocket ships and spacecraft with extremely lightweight decorative ... water, it becomes iridescent, revealing a myriad of ...
(Date:9/30/2014)... analog of one of nature,s most efficient light-harvesting ... led by Alejandro Briseno of the University of ... developing long-sought polymer architecture to boost power-conversion efficiency ... devices. , Briseno, with colleagues and graduate ... University and Dresden University of Technology, Germany, report ...
(Date:9/30/2014)... 2014 Report Details Biosimilar drugs ... revenues Do you want to find sales potentials ... predictions for those biological drugs from 2014, helping ... financial data, R&D trends, opportunities and selling prospects. ... to 2024 at overall world market, therapeutic class, ...
(Date:9/30/2014)... Nematicide is a type of chemical ... parasitic roundworms, found in massive quantities virtually everywhere—in ... animals. Nematicides have tended to be broad-spectrum toxicants ... through the soil. A single gram of soil ... more than 10,000 species classified, they are one ...
Breaking Biology Technology:Taking thin films to the extreme 2Blades of grass inspire advance in organic solar cells 2Blades of grass inspire advance in organic solar cells 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 2Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 3Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 4Biosimilars and Follow-On Biologics: World Industry and Market Prospects 2014-2024 5Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2
... The Gynecologic Cancer Foundation (GCF) and the Claudia Cohen Research Foundation announce today that ... $50,000 GCF/Claudia Cohen Prize for Outstanding Gynecologic Cancer Researcher.  The prize is being presented ... San Francisco March 14-17, 2010 . , ... ...
... has received a Paragraph IV Notice Letter,from Teva Pharmaceuticals USA, Inc. ("Teva") advising of the filing of an,Abbreviated New Drug Application ("ANDA") for ... ... , , ... ...
... Cylex™, a global life science company that develops and manufactures in vitro diagnostic products based on patented technology, announced today the expansion of ... , ... , , ... ...
Cached Biology Technology:Paul Goodfellow, PhD, Awarded First GCF/Claudia Cohen Prize for Outstanding Gynecologic Cancer Researcher 2Paul Goodfellow, PhD, Awarded First GCF/Claudia Cohen Prize for Outstanding Gynecologic Cancer Researcher 3Paul Goodfellow, PhD, Awarded First GCF/Claudia Cohen Prize for Outstanding Gynecologic Cancer Researcher 4Paul Goodfellow, PhD, Awarded First GCF/Claudia Cohen Prize for Outstanding Gynecologic Cancer Researcher 5Shire Receives INTUNIV (TM) Paragraph IV Notice Letter From Teva Pharmaceuticals 2Shire Receives INTUNIV (TM) Paragraph IV Notice Letter From Teva Pharmaceuticals 3Shire Receives INTUNIV (TM) Paragraph IV Notice Letter From Teva Pharmaceuticals 4Cylex Announces Valuable Personnel Additions 2Cylex Announces Valuable Personnel Additions 3Cylex Announces Valuable Personnel Additions 4Cylex Announces Valuable Personnel Additions 5
Mouse monoclonal [ICRF 44] to Integrin alpha M...
... Finnpipette Focus Long has a ... pipetting from test tubes, bottles, ... long necked vessels. Finnpipette Focus ... you select, it will be ...
... entire pressurized perfusion system for small ... biophysics, electrochemistry, or general liquid-handling research ... as 100 microliters of precious drugs. ... in milliseconds from a single tip. ...
Request Info...
Biology Products: