Tech Natives Event #3: "Mobile, wearable, smart tech" - MICHAEL RUSSOLD

1 TechNatives | Michael Russold | Okt. 2013

mobile, wearable, smart tech

Vienna, 21st October 2013 TechNatives

Who am I?

Nationality Austrian Education Kindergarten

primary school: VS Stadl/Mur

secondary school: Gymnasium Tamsweg

HTL Nachrichtentechnik

Dipl.-Ing. Elektrotechnik TU-Wien

PhD, Human Anatomy & Cell Biology, University Liverpool

PostDoc, Rehabilitation Research Center, University Sydney

Current Job Otto Bock Heatlhcare Products GmbH Experience 13+ years and counting

Michael Friedrich Russold

TechNatives | Michael Russold | Okt. 2013

Which technologies popped up within the last years? ????????????

Smart Textiles: conductive, functional, shape remebering, sensing Electronics: wireless technologies

& mobile computing, µC-platforms

Software: cloud applications

touch screens

Materials: Nanotubes, Motors, Gearing, CAD/CAM

thin-film systems

3D printing

Regulatory: 14791, 60601-1.1 edII(I), 60601-2-10 edII(I), 13485, 62304, 82304, 10993, CE, FDA, C-tick, Canadian registration…

(Why) do they matter?

Do they matter in our field????

Medical Device development

1. You don‘t know what you don‘t know

2. Regulatory Red Tape can be avoided by being smart

3. Work with experienced partners with trusted relationships only

4. Documentation, Documentation and more Documentation

How does mobile, wearable, smart tech impact the audience?

How do you apply the technologies in your field of business?

Case studies

hopefully never, in my field

The most famous prosthesis of them all What the media presents

Control and Mechanics of Prosthetic Devices

upper extremity human •  Human anatomy

– 20+ DOF (incl. hand)

•  perfect control

– life-long learning phase

– proprioception

– Feedback

– force

– temperature – humidity

– …............

Human arm vs. prosthetic device

Commercial prosthesis •  Mechanics

– maximum 4-6 DOF

•  Control

– sequential control

– pattern recognition with simultaneous control emerging

– no proprioception

– no Feedback, although field of interest in research

Revolutionizing Prosthetics (DARPA) Results

Challenge •  Upper extremity

– 20+ DOF

– perceived low weight

– intutitive control

– feedback

Outcome MPL (modular prosthetic limb) John Hopkins University

Deka Arm

be bionic (finger movement, 14 grip patterns)

i Limb (finger movement)

ottobock system

State of the Art Technology

How to control your arm in daily life •  type of control: sequential/simultaneous

•  # of signals required

•  external factors

•  Functionality?

-  How much is required?

Is there anything missing?

Control and resulting challenges

Movement and Control

Below Elbow amputation •  multiple electrodes on forearm

pattern recognition

Above Elbow amputation •  biceps & triceps available → number of signals (very) limited

•  extra DOF in elbow required

Shoulder exarticulation •  extra DOF in shoulder required

•  no signals available without surgery → TMR

Movement and Control Pattern recognition II

Movement and Control Pattern recognition III

•  can be done

•  limited by space for electrodes

•  number of signals available

•  suffers all drawbacks of surface EMG

pattern recognition IV

Movement and Control Implanted Sensors

IMES (Bion)

UTAH Slant Array

tfLife, FINE, sieve electrodes

IMES (Bion)

Implanted Sensors

UTAH Slant Array

tfLife, FINE, sieve electrodes

IMES (Bion)

Implanted Sensors

UTAH Slant Array

tfLife, FINE, sieve electrode

IMES (Bion)

Implanted Sensors

UTAH Slant Array

tfLife, FINE, sieve electrode

Implanted Sensors

UTAH Slant Array

tfLife, Fine, sieve electrode

•  International research topic

•  muscle electrodes are proven designs

•  nerve interfaces are difficult to control

•  mechanical stability is difficult to achieve

Implanted Sensors

NNP (networked neural prosthesis)

Cleveland FES Center

Implanted Systems

Ripple Inc.

Myoplant German research project

Implanted Systems

Ripple Inc.

Implanted Systems

Ripple Inc.

Implanted Systems

Ripple Inc.

mobile, wearable, smart tech

Conclusion •  devices are mobile and wearable •  they are (very) smart-tech

•  perfect integration difficult •  control not always easy to achieve

•  regulatory red tape is difficult to handle •  we do document a lot!

too complicated?!

keywords: Arduino prosthetic arm & InMoov project

Questions

www.ottobock.com M. Russold

???????????????

Movement & Control

Below elbow amputation

sequential control

function muscles used movement

Fingers open and close Wrist extensors and flexors Open – extensors

Close – flexors Wrist rotation Wrist extensors and flexors CW – extensors

CCW – flexors Change of movement Co-contraction

Tech Natives Event #3: "Mobile, wearable, smart tech" - MICHAEL RUSSOLD

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