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Implanted User Interfaces

Implanted User Interfaces

We investigate implanted user interfaces that small devices provide when implanted underneath human skin. Such devices always stay with the user, making their implanted user interfaces available at all times. We discuss four core challenges of implanted user interfaces: how to sense input through the skin, how to produce output, how to communicate amongst one another and with external infrastructure, and how to remain powered. We investigate these four challenges in a technical evaluation where we surgically implant study devices into a specimen arm. We find that traditional interfaces do work through skin. We then demonstrate how to deploy a prototype device on participants, using artificial skin to simulate implantation. We close with a discussion of medical considerations of implanted user interfaces, risks and limitations, and project into the future.

More information on http://www.christianholz.net/implanted_user_interfaces.html

Christian Holz

May 07, 2012
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  1. Implanted User Interfaces Christian Holz1,2 Tovi Grossman1 George Fitzmaurice1 Anne

    Agur 3 Autodesk Research Toronto, Canada 1 Hasso Plattner Institute Potsdam, Germany 2 Department of Anatomy University of Toronto, Canada 3
  2. 3 Million people no need for manual attaching cannot lose

    or forget them available at all times potentially completely invisible
  3. output components vibration motor easy to notice and private audio

    and LED only when paying attention input controls button and tapping good for activation pressure sensor hard to discover
  4. decending staircase design for minimum perceivable intensities human observer (32

    years, male) II output output components LED, audio, vibration
  5. 60dB 0% 20% 40% 60% 80% set:volume microphone | close

    speaker 100% 0dB implant baseline I input
  6. 100% 0% 20% 40% 60% 80% 48.9% II output LED

    baseline implant saturated power
  7. 9600:bps 115200:bps 100% 0% 0 2000 4000:bps 9600:bps 115200:bps 0Ω

    500Ω 1KΩ 1.5KΩ 2KΩ 100mA 50mA III communication IV power
  8. addressed questions explored the design space of four core areas

    methodology to prototype demonstrated technical feasibility
  9. 3 Million people no need for manual attaching cannot lose

    or forget them available at all times potentially completely invisible
  10. Department of Anatomy at University of Toronto Wei Li Azam

    Khan, Justin Matejka, Frank Li Alex Tessier, Francesco “Frio” Iorio, Gord Kurtenbach Patrick Baudisch, Alan Borning participants of our qualitative evaluation thanks to