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Capacitive Touch Sensor forFoot Drop Paralysis StimulatorApivan Trungtrakul, Jirawat Jitprasutwit, Ratikorn Chaivattanatha...
Foot drop@Faculty of Physical Therapy, Mahidol University
Cause of foot drop                 Stroke       20% of survivors        They have foot drop.     Every year     15 million...
In ThailandAt less 400,000 Foot Drop
Treatments• Tendon transfer (surgery)• Ankle foot orthotic (joint support)           Tendon transfer              Ankle fo...
Electrotherapy:                Foot drop stimulator (FDS)     Sensor part     Control partElectrical stimulator part     N...
FDS in commercial    Force sensor                    Tilt sensorOdstock   Bioness L300   WalkAide         XFT ElectronicEu...
Our sensor
Capacitive technique
Simple calculation
Sensor benchmark                           Tilt sensor   Force sensor   Cap. sensor Power consumption      Durability     ...
FDS system & accessory   Controller               Capacitive       &                     sensor   stimulator              ...
Commercial FDS    WalkUp FDS 1 adjustable knob 2 interface buttons 3 stimulation modes 300 – 400 USD (Thailand only)
Clinical Trial
SummaryNew Sensing TechniqueCapacitive touch sensorLow Power Consumption       2.75 nA   High durability  PCB-based Sensor
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"iCAN'2011" 4-7 Jun 2011 @Beijing,China

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Transcript of ""iCAN'2011" 4-7 Jun 2011 @Beijing,China "

  1. 1. Capacitive Touch Sensor forFoot Drop Paralysis StimulatorApivan Trungtrakul, Jirawat Jitprasutwit, Ratikorn Chaivattanatham Advisor: Zeng Lertmanorat, Ph.D. THAILAND, Mahidol University iCAN 2011 Beijing China
  2. 2. Foot drop@Faculty of Physical Therapy, Mahidol University
  3. 3. Cause of foot drop Stroke 20% of survivors They have foot drop. Every year 15 million people suffer a stroke 5 million are left permanently disable1 million Foot Drop per year
  4. 4. In ThailandAt less 400,000 Foot Drop
  5. 5. Treatments• Tendon transfer (surgery)• Ankle foot orthotic (joint support) Tendon transfer Ankle foot orthotic
  6. 6. Electrotherapy: Foot drop stimulator (FDS) Sensor part Control partElectrical stimulator part Nerve & Muscle Contraction!!!
  7. 7. FDS in commercial Force sensor Tilt sensorOdstock Bioness L300 WalkAide XFT ElectronicEurope USA USA China1,700 $ 6,500 $ 4,495 $ 1,380 $
  8. 8. Our sensor
  9. 9. Capacitive technique
  10. 10. Simple calculation
  11. 11. Sensor benchmark Tilt sensor Force sensor Cap. sensor Power consumption Durability Cost ReliabilityExtra electronic circuit SCORE -1 -1 3
  12. 12. FDS system & accessory Controller Capacitive & sensor stimulator Set parameter via software Electrode FDS system
  13. 13. Commercial FDS WalkUp FDS 1 adjustable knob 2 interface buttons 3 stimulation modes 300 – 400 USD (Thailand only)
  14. 14. Clinical Trial
  15. 15. SummaryNew Sensing TechniqueCapacitive touch sensorLow Power Consumption 2.75 nA High durability PCB-based Sensor
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