Medical Design Briefs - April 2021 - 33

of System Integration, and Shuichi Ito,
professor of department of Pediatrics in
Yokohama City University's Graduate
School of Medicine, the team published
their results in Science Advances.
" We have developed the world's first
wearable multi-vital device for newborns
that can simultaneously measure neonatal
jaundice, blood oxygen saturation and
pulse rate, " Ota says, noting that jaundice
occurs in 60-80 percent of all newborns.
" The real-time monitoring of jaundice is
critical for neonatal care. Continuous
measurements of bilirubin levels may contribute to the improvement of quality of
phototherapy and patient outcome. "
Currently, medical professionals use
handheld bilirubinometers to measure
bilirubin levels, but there is not a device
that can simultaneously measure jaundice
and vitals in real time.
" In this study, we succeeded in miniaturizing the device to a size that can be worn
on the forehead of a newborn baby, " Ota
says. " By adding the function of a pulse
oximeter to the device, multiple vitals can
easily be detected. "
Held to the baby's forehead by a silicone
interface, the device has a lens capable of

Medical Design Briefs, April 2021

Jaundice
Pulse rate
SpO2

Schematic of neonatal wearable device for detecting jaundice and vitals. (Credit: Yokohama
National University)

efficiently transmitting lights to neonatal
skin via battery-powered light-emitting
diodes, commonly known as LEDs.
" At the present stage, coin cell batteries
are used, and the overall shape is very
thick, " Ota says. " In the future, it will be
necessary to further reduce the thickness
and weight by using thin-film batteries and
organic materials. "
The researchers tested the device on
50 babies, and they found that the
device is not currently accurate
enough to suffice for clinical decisionmaking. According to Ota, they will

Free Info at http://info.hotims.com/79412-764

Cov

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reduce the thickness and increase the
flexibility of the device, as well as
improve the silicone interface to facilitate better skin contact.
In the future, the researchers plan to
develop a combined treatment approach
that pairs a wearable bilirubinometer with
a phototherapy device to optimize the
amount and duration of light therapy
based on continuous measurements of
bilirubin levels.
For more information, visit www.ynu.ac.jp/
english. Contact Hiroki Ota, ota-hiroki-xm@
ynu.ac.jp.

33


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Medical Design Briefs - April 2021

Table of Contents for the Digital Edition of Medical Design Briefs - April 2021

Medical Design Briefs - April 2021 - Intro
Medical Design Briefs - April 2021 - Cov4
Medical Design Briefs - April 2021 - Cov1a
Medical Design Briefs - April 2021 - Cov1b
Medical Design Briefs - April 2021 - Cov1
Medical Design Briefs - April 2021 - Cov2
Medical Design Briefs - April 2021 - 1
Medical Design Briefs - April 2021 - 2
Medical Design Briefs - April 2021 - 3
Medical Design Briefs - April 2021 - 4
Medical Design Briefs - April 2021 - 5
Medical Design Briefs - April 2021 - 6
Medical Design Briefs - April 2021 - 7
Medical Design Briefs - April 2021 - 8
Medical Design Briefs - April 2021 - 9
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Medical Design Briefs - April 2021 - 11
Medical Design Briefs - April 2021 - 12
Medical Design Briefs - April 2021 - 13
Medical Design Briefs - April 2021 - 14
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Medical Design Briefs - April 2021 - 18
Medical Design Briefs - April 2021 - 19
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Medical Design Briefs - April 2021 - 21
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Medical Design Briefs - April 2021 - 33
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Medical Design Briefs - April 2021 - Cov3
Medical Design Briefs - April 2021 - Cov4
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