safer medical device user interfaces by gerrit niezen
DESCRIPTION
Presentation from User Experience in Life Science -seminar by Gerrit Niezen, June 2014TRANSCRIPT
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Gerrit Niezen Postdoctoral researcher Swansea University, Wales, United Kingdom
Designing safer medical device user interfaces
! @gendor
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3/5 entered incorrect data !
5/5 pushed “Start” button to power on !
3/5 chose mg/h instead of mL !
3/5 were confused that arrow button is also decimal point button
!
2/5 who had confusion with programming had no negative comments (qualitatively) about the design
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ENTERING DATA
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SERIAL DIGIT ENTRY
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INDEPENDENT DIGIT ENTRY
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INCREMENTAL NUMBER ENTRY
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MODELLING USING FEEDBACK LOOPS
Photo Credits: DiverDave (Wikimedia Commons), Phil King (Flickr: pkingDesign), Marcin Wichary (Flickr: mwichary), comedy_nose (Flickr)
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3/5 entered incorrect data !
5/5 pushed “Start” button to power on !
3/5 chose mg/h instead of mL !
2/5 who had confusion with programming had no negative comments (qualitatively)
about the design
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Adhering to standards
US: FCC, UL, FDA
EU: CE markingMore than 20 directives, for example
low voltage or lifts
Notified bodies needed for some conformity assessments
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Standards
Medical devices - Application of usability engineering to medical
devices
ISO/IEC 62366:2007 Process standard
ANSI/AAMI HE75:2009 Design principles standard
Human Factors Engineering - Design of
medical devices
Other standards for electrical compliance, risk management, alarm systems, graphical symbols and labelling
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http://www.chi-med.ac.uk/researchers/industrypublications.php
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3/5 entered incorrect data !
5/5 pushed “Start” button to power on !
3/5 chose mg/h instead of mL !
2/5 who had confusion with programming had no negative comments (qualitatively)
about the design
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3/5 entered incorrect data !
5/5 pushed “Start” button to power on !
3/5 chose mg/h instead of mL !
2/5 who had confusion with programming had no negative comments
(qualitatively) about the design
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HOSPIRA SYMBIQ INFUSION PUMP 2007 Medical Device Excellence Award HFES 2006 User-centered Product Design Award
“… users possibly experiencing a delayed response and/or the screen registering a different value from the value selected by the user.” – FDA recall notice
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User centred design (UCD) was primarily developed to improve user experience (UX), not for designing out "never events"
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Generic Infusion Pump (GIP) project
making medical devices safer
uses verification methods to improve software safety
reference specification for PCA pump software
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Medical devices and HCI Full-day tutorial
Sunday 26 October 2014
Aalto University’s School of Arts, Design and Architecture
NordiCHI’14, 26-30 October 2014
Marina Congress Center, Helsinki
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Images are used under the Creative Commons license: Joe Pemberton, Marcin Wichary, Tim Gee, redspotted, Walt Stoneburner, Phil King, Timo Noko and Adafruit Industries from Flickr DiverDave, Chris 73 and Daniel Zanetti from Wikimedia Commons Henry Rider from the Noun Project !Fluorouracil label image used with permission from Harold Thimbleby