8/20/2008 1 Medical Bionics ‐ from the ear to the brain Mark Cook University of Melbourne St. Vincent’s Hospital Bionics – what is it? • Bionics means the replacement or enhancement of organs or other body parts by mechanical versions. • Bionic implants are more than just • Bionic implants are more than just prostheses – they mimic or improve the original function Why Now? • Advances in materials sciences • Advances in computing technologies
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8/20/2008
1
Medical Bionics‐ from the ear to the brain
Mark Cook
University of Melbourne
St. Vincent’s Hospital
Bionics – what is it?
• Bionics means the replacement or enhancement of organs or other body parts by mechanical versions.
• Bionic implants are more than just• Bionic implants are more than just prostheses – they mimic or improve the original function
Why Now?
• Advances in materials sciences
• Advances in computing technologies
8/20/2008
2
Bionic EyeMedical Bionics
Inner ear(cochlea)
Middleear
Receiver‐stimulatorTransmitting
coil
Behind‐the‐earSpeech processor
Brain
Electrodearray
Auditorynerve
Receiver‐stimulatorCoils
Behind‐the‐earSpeech processor
Electrodearray
Spinal Cord Repair
Medical Bionics
Neural Repair
University of Wollongong
8/20/2008
3
Control of epileptic seizures
•Prediction modelling•Control via drug delivery& electrical stimulation
Medical Bionics
DL
Biomaterials
• Materials intended to interface with biological systems to evaluate, treat, augment or replace any tissue, organ or function of the body.
• A biomaterial is different from a biological• A biomaterial is different from a biological material such as bone that is produced by a biological system.
8/20/2008
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PPy-DBS NaNO3
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Dynamic Properties of Conducting PolymersDynamic Properties of Conducting Polymers
Δ Resistance Δ Ion Flux (Ionic/Non Ionic)Δ Capacitance Δ Hydrophobicity / Surface Energy