[Ce-compsaude] Fwd: [SBIS-News] Rede wireless para monitoração doméstica de sinais vitais de pacientes

[Marcia Ito]

---------- Forwarded message ----------
From: Instituto Edumed <listas em edumed.org.br>
Date: 2009/6/28
Subject: [SBIS-News] Rede wireless para monitoração doméstica de sinais
vitais de pacientes
To: SBIS-News em yahoogrupos.com.br


 Resumo: Pesquisadores da Universidade de Houston, EUA, desenvolveram
uma rede wireless doméstica que permite montar um sistema de baixo custo
de monitoração doméstica de sinais vitais e de localização espacial de
pacientes. O sistema usa WiFi, sensores baratos usados pelo paciente
constantemente, e um smartphone ou PDA para comunicação com os sensores
e para enviar notificações, dados e alarmes. O sistema custaria menos de
1000 dólares para uma residência típica, por paciente, e economizaria
internações hospitalares e necessidade de monitoração intra-hospitalar,
dizem os pesquisadores, que foram apoiados pelo Abramson Center for the
Future of Health. Resumo por Renato M.E. Sabbatini.
=========================================
Electronic Help For Caregivers Monitoring Patients' Health And Whereabouts
http://www.sciencedaily.com/releases/2009/06/090626091136.htm

ScienceDaily (June 27, 2009) — For those who are caring for elderly
parents, peace of mind is hard to come by. And, for their parents,
dignity is hard to retain. But a team of University of Houston
researchers hopes to ease worries and frustrations by designing an
affordable in-home health-monitoring system that will notify caregivers,
via smartphones or PDAs, if their loved ones need attention.

"Our system will allow for such things as vital sign monitoring and
location tracking using low-cost technologies and offering fast response
times for caregivers," said Driss Benhaddou, an assistant professor of
engineering technology at UH's College of Technology.

Four years ago, Benhaddou and his team began work on a wireless
health-monitoring system in conjunction with the Abramson Center for the
Future of Health, a joint partnership between UH's College of Technology
and The Methodist Hospital Research Institute, which emphasizes
personalized medicine and medical device development.

"Our original thought was that sensor networks can be applied to any
type of removed health care using off-the-shelf technology, which makes
it cheaper, because you don't need to reinvent the wheel," Benhaddou
explained. "The technology uses processor boards found in a variety of
electronics, which cost only about $70 each. You could wire a whole home
for about $1,000."

A patient whose movement is being monitored, perhaps because of
Alzheimer's or dementia, will wear a sensor the size of a quarter on a
belt or piece of clothing. One whose vital signs, such as temperature,
heart beat and oxygen level, are being monitored will wear the sensor on
his or her skin.

"The house would have a handful of sensors in various rooms, depending
upon the square footage. Those sensors would communicate with the sensor
on the person and with a hub, which would be connected to the Internet
and communicate with a caregiver's smartphone or PDA," he said.

Benhaddou said the installation of the system must be simple so that
caregivers can do it on their own.

"Components can be added or removed without the intricate knowledge of
the system, because it uses plug-and-play technology," assistant
professor Deniz Gurkan said. "It is similar to plugging in a mouse to a
computer using a USB port. You don't need to be a computer techie to be
able to use it."

Though the technologies the team is employing are readily available,
Benhaddou said, the challenge is to integrate them, to interpret data
generated by sensors and to provide reliable information to caregivers.

"Besides vital sign biosensors, the system has three main components:
wireless sensor interface, networking, and digital signal processing,"
explained assistant professor Xiaojing Yuan. "The wireless sensor
interface connects different sensors to the wireless communication
module. The communication protocols securely transmit the data to the
right person at the right time through the network. And the digital
signal processing ensures the timeliness of the communication and
determines the impact of the vital sign for the patient's health."

Student Bao Quach, a computer engineering technology major, has been
working on implementing mechanisms that will send notifications to the
smartphone or PDA through either a regular telephone network or a local
Wi-Fi network, Benhaddou said.

"Bao implemented an interface in a smartphone prototype that was tested
in the lab," Benhaddou said. "It is amazing how some students can just
take the job and run with it."

Meanwhile, post-doctoral student Manikanden Balakrishnan is focused on
fine-tuning the quality of service that will be provided to end-users.

"My research aims to achieve stable service and the fewest possible
delays for emergency reporting during peer-to-peer device operation,"
Balakrishnan said. "This will enable reliable emergency alarming from
body sensors directly to doctors' phones, eliminating the Internet
interface."

Benhaddou said monitoring vital signs with this kind of system in a
hospital setting would take some of the burden off physicians and nurses.

"After surgery, for instance, you need to do a lot of monitoring. While
you'll always need a nurse, such a system would improve the quality of
the data that you're taking. It would track patients every single
minute," he said.

Other applications of the wireless system, Benhaddou said, could reduce
existing monitoring costs at assisted living centers, keep an eye on
potentially sleep-deprived truck drivers and assess astronaut
performance during NASA space missions.

Adapted from materials provided by University of Houston.



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"...tomamos emprestado o slogan da Nike, 'Just do It'. Quer dizer, nao
se vanglorie, faca. E mostre ao mundo depois." (Linus Torvalds)
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Marcia Ito, M.D., PhD
Coordenadora
Laboratorio de Pesquisa em Ciencias de Servico (LaPCiS)
Centro Estadual de Ensino Tecnologico Paula Souza
R. Bandeirantes, 169 - Bom Retiro - 01124-010
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tel/fax: (11) 3327-3104

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