Bioelectric Prosthesis Modelling using 3D-Printing
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Bioelectric Prosthesis Modelling using 3D-
Printing
WORK BY:GOKUL KARATELECTRONICS AND COMMUNICATION ENGINEER
OVERVIEW OF PRESENTATIONINTRODUCTIONPROSTHESIS3D PRINTING AND ITS USE FOR
PROSTHESISCONTROL OF PROSTHESIS USING
PERIPHERAL INFORMATIONFUTURE OF PROSTHESISCONCLUSION
INTRODUCTIONSTROKE – AS CAUSE OF ADULT
DISABILITY
REHABILITATION
DISADVANTAGES WITH REHABILITATION
RELEVANCE OF THE TOPIC
PROSTHESIS
ARTIFICIAL SUBSTITUTE FOR A MISSING PART OF THE BODY
PROSTHETICSTYPES : PROSTHESI
S
JOINT ARM LEGCOSMETIC
CRANIO-FACIAL
TRANSRADIAL
TRANSHUMERAL
TRANSTIBIAL
TRANSFEMORAL
CLASSIFICATION: PASSIVE
Focused on the appearance Least control
ACTIVITY SPECIFIC Designed for an activity Eg: running, swimming….
SPORTS MEN WITH ACTIVE SPECIFIC PROSTHESIS
ACTIVEWill have complete control
TYPES :EXTERNALLY POWERED
Actuated by external sources
Uses battery and electro motors
Weight, increased maintenance, low speed, lack of proper feedback
Eg : Fluid Hand, DEKA Hand ,I Limb ,Rocket Arm ,Spring Hand
FLUID HAND
The Body Powered
No external sources are required
Controlled by cables from other parts of body
Most still in the concept phase
Eg : Imperial Hands, Otto Bock Hands …
Hybrid Under research
Have characteristics of both body poweredand externally powered
OTTA BOCK HAND
3D PRINTING3D printing is a process of making 3D solid objects from a
digital fileObject is achieved using additive processes. TYPES:
Selective Laser Sintering (SLS) Uses a high powered laser Durable products Materials : Plastics, Elastomers, Metal, Ceramics, Glass
Stereo lithography (SLA) Uses UV rays and laser Great surface quality and build accuracy Products are brittle Materials : Epoxy polymers, either rigid or flexible
Polyjet or Jetted Photopolymer (J-P) Uses UV light Create rubber-like objects Materials :photopolymers, both solid as rubber-like
Fused Deposition Modelling (FDM) Material is molten and laid down in layers Cheapest Materials :ABS, concrete, chocolate, icing
Laser Powder Forming or Laser Fusing A powder is fed instead of solid core cartridge Method for making very detailed and small parts Most expensive Materials :metal, ceramic, polymer
Laminated Object Manufacturing (LOM) Sheets of raw material are laid on each SIDES Wood-like properties Materials: paper, plastic or metals
WHY 3D PRINTING FOR PROSTHESISCustomization and Personalization
Increased Cost Efficiency
Enhanced Productivity
3D MODELLING OF PROSTHESIS
Auto Desk Inventor Software
Independent Joints 3D MODELLED PROSTHESIS HAND
CONTROL OF PROSTHESIS USING PERIPHERAL INFORMATION
EOGElectrooculography helps in controlling
prosthesis by decoding the movement of eyeUsed in case where EMG or ENG cannot be
usedEEG
Electroencephalography measures the brain activity and decodes it for controlling
EOG ELECTROD PLACEMENT
EMGElectromyography detects the electrical
potential generated by muscle cellsEMG signals from voluntarily contracted
muscles taken and decoded
STEPS FOR DEVICE CONTROLsignal acquisitiondecoding control
TYPES OF EMGS EMG
Non-invasive methodSurface electrodes are usedPotentials on skin surface are measured
S EMG DECODING FOR PROSTHESIS CONTROL
I EMG
Non-invasive or invasiveDetected using needle electrodes or wiresPotentials of selected muscles are
measured
I EMG DECODING FOR PROSTHESIS CONTROL
ENGElectroneurography detects the electrical
activity of neurons in CNSprovide the direct measure of the neural
drive to the musclesFine electrodes or cuff electrodes are used
FUTURE OF PROSTHESISHuman cells to be used as inkProsthesis will exact replica of the
original body part Sensory feedbacks are provided
FUTURE PROSTHESIS MODELLING
CONCLUSION Prosthesis which uses the bio electrical
potentials generated with in body could be modelled using 3d printing technique
Low costLess time consumptionIncreased effiency Increased controlLooks orginalNo need for surgery 3D PRINTED GLOVES FOR
HANDS
REFERENCES
Corinne Dally, Daniel Johnson, Moriah Canon, Sarah Ritter, Khanjan Mehta, “Characteristics of a 3D-Printed Prosthetic Hand”, IEEE Global Humanitarian Technology Conference, 2015.
K. Matsushita and H. Yokoi, “Robotics education: Development of cheap and creative EMG prosthetic applications”, Proceedings of IEEE International Conference on Intelligent Robots and Systems, 2009.
Kai j. Miller, beau Crawford, and Rajesh p. N. Rao, “electromyographic control of a robotic prosthesis”, IEEE transactions on biomedical engineering, vol. 55, no. 3, march 2008
Michael King, Brienna Phillips, Marc shively and Venkatesh raman, “Optimization of Prosthetic Hand manufacturing”, IEEE Global Humanitarian Technology Conference, 2015.
Richard f. Ff. Weir, Ph.D., “design of artificial arms and hands for prosthetic applications”, handbook of biomedical engineering and design,2009
THANK YOU
!
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