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Re-imagining the future state of the ventricular assist device controller interface through human-centered design.

Rosie Hough1, Jessica Lea Dunn1, Leigh-Anne Hepburn1

  • 1School of Architecture, Design and Planning, University of Sydney, Sydney, New South Wales, Australia.

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Summary

Redesigning ventricular assist device (VAD) controllers with a human-centered approach can improve patient quality of life. Focusing on automation and emotional needs enhances the VAD user experience for better health management.

Keywords:
design for emotiondesign innovationhuman factorsmechanical circulatory supportpatient experience

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Area of Science:

  • Biomedical Engineering
  • Human-Computer Interaction
  • Medical Device Design

Background:

  • Ventricular assist devices (VADs) are crucial for end-stage heart failure but current controllers have interface limitations.
  • Existing VAD controller interfaces negatively impact patient experience and quality of life (QoL).
  • A human-centered design approach is needed to improve VAD controller emotional and functional aspects.

Purpose of the Study:

  • To explore redesign opportunities for VAD controllers using a human-centered design methodology.
  • To enhance the emotional and functional user experience of VAD devices for patients.
  • To identify key patient concerns for future VAD controller development.

Main Methods:

  • Conducted interviews with VAD patients (n=21), caregivers (n=4), and healthcare practitioners (n=24) to identify design opportunities.
  • Utilized a 'design by analogy' method, drawing inspiration from consumer products for VAD wearable system functionality.
  • Developed and evaluated future-state concepts for VAD controller interfaces and paired wearable devices with additional patients and caregivers.

Main Results:

  • Validated the need for enhanced automation and emergency features in VAD controllers.
  • Highlighted requirements for remote data monitoring, accurate battery status communication, and automated critical device alarms.
  • Identified key patient concerns: 'Manage my health,' 'Feeling normal,' 'Social belonging,' 'Feeling safe,' and 'Sense of control'.

Conclusions:

  • This study presents an innovative approach to improve the usability of VAD peripherals.
  • Integrating emotional and functional perspectives in VAD design can significantly improve patient QoL.
  • Device manufacturers can leverage user-centered design to enhance patient experiences with VADs.