0
Design Innovation

A Process for Design, Verification, Validation, and Manufacture of Medical Devices Using Immersive VR Environments

[+] Author and Article Information
Daniel F. Keefe

Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455keefe@cs.umn.edu

Fotis Sotiropoulos

Saint Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN 55414fotis@umn.edu

Victoria Interrante

Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455interran@cs.umn.edu

H. Birali Runesha

Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455runesha@msi.umn.edu

Dane Coffey

Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455coff0097@umn.edu

Molly Staker

Medical Devices Center and Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455stake007@umn.edu

Chi-Lun Lin

Medical Devices Center and Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455linxx691@umn.edu

Yi Sun

Medical Devices Center and Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455sunxx564@umn.edu

Iman Borazjani

Saint Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN 55414iman@buffalo.edu

Trung Le

Saint Anthony Falls Laboratory, University of Minnesota, Minneapolis, MN 55414lebao002@umn.edu

Nancy Rowe

Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455rowe@msi.umn.edu

Arthur Erdman

Medical Devices Center and Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455agerdman@umn.edu

J. Med. Devices 4(4), 045002 (Nov 03, 2010) (6 pages) doi:10.1115/1.4002561 History: Received August 19, 2010; Revised August 27, 2010; Published November 03, 2010; Online November 03, 2010

This paper presents a framework and detailed vision for using immersive virtual reality (VR) environments to improve the design, verification, validation, and manufacture of medical devices. Major advances in medical device design and manufacture currently require extensive and expensive product cycles that include animal and clinical trials. The current design process limits opportunities to thoroughly understand and refine current designs and to explore new high-risk, high-payoff designs. For the past 4 years, our interdisciplinary research group has been working toward developing strategies to dramatically increase the role of simulation in medical device engineering, including linking simulations with visualization and interactive design. Although this vision aligns nicely with the stated goals of the FDA and the increasingly important role that simulation plays in engineering, manufacturing, and science today, the interdisciplinary expertise needed to realize a simulation-based visual design environment for real-world medical device design problems makes implementing (and even generating a system-level design for) such a system extremely challenging. In this paper, we present our vision for a new process of simulation-based medical device engineering and the impact it can have within the field. We also present our experiences developing the initial components of a framework to realize this vision and applying them to improve the design of replacement mechanical heart valves. Relative to commercial software packages and other systems used in engineering research, the vision and framework described are unique in the combined emphasis on 3D user interfaces, ensemble visualization, and incorporating state-of-the-art custom computational fluid dynamics codes. We believe that this holistic conception of simulation-based engineering, including abilities to not just simulate with unprecedented accuracy but also to visualize and interact with simulation results, is critical to making simulation-based engineering practical as a tool for major innovation in medical devices. Beyond the medical device arena, the framework and strategies described may well generalize to simulation-based engineering processes in other domains that also involve simulating, visualizing, and interacting with data that describe spatially complex time-varying phenomena.

FIGURES IN THIS ARTICLE
<>
Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic of the vision for an immersive simulation-based virtual design environment for medical device designers

Grahic Jump Location
Figure 2

The iterative design process that we aim to accelerate via an immersive simulation-based virtual design environment

Grahic Jump Location
Figure 3

A virtual reality visualization of simulated blood flow through a replacement heart valve implanted within a model of an aorta constructed from imaging data

Grahic Jump Location
Figure 4

A multitouch table used in conjunction with a rear-projected VR display to interact with simulation results. Left: The visualization environment. Right top: The imagery shown on the VR wall from the user’s perspective. Right bottom: The imagery shown on the table from the user’s perspective.

Grahic Jump Location
Figure 5

Gestural 3D input from a 6 degree-of-freedom virtual reality wand is used to implement a selection technique within a VR visualization of blood flow. The user sketches a 3D lasso around a region of the flow.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In