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HUMAN ENGINEERING:
PROSTHETICS AND
ORTHOTICS
By:
Mike Norell
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PROSTHETICS AND
ORTHOTICS Overview
History
Devices
Challenges of the Disabled
Emerging Technologies
Final Thoughts
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OVERVIEW
Prosthetics = Replacing
Orthotics = Straightening
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FAMILY BUSINESS
Norell family has been building
functional external fixators since the
late 1950’s.
Late 1960’s is when I got introduced to
the profession. What I made then is
now pre-fabricated today, as the field
is continuously evolving.
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PROGRAMS ACCREDITED BY
NCOPE NCOPE- National Commission on
Orthotic and Prosthetic Education
Currently 9 universities that offer P
and O Practitioner Programs, 4 that
offer technician programs, and 1 up
for Candidate for Accreditation.
California State University Dominguez
Hills is the only university in California.
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BONY LANDMARKS
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BONY LANDMARKS
Bony landmarks- distinguishing features found on the bones of the skeletal system.
Each bone has at least one or two “landmarks” to distinguish that bone from others.
Used regularly by therapists, prosthetists orthotists, and other medical professionals.
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BONY LANDMARKS
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It’s estimated that one out of every 200 people has had some kind of
amputation, according to the Amputee Coalition of America. [ACA]
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LIFE’S CHALLENGES
Historically man’s challenge through
life has been accompanied by trauma,
disease, and congenital abnormalities
directly associated with the need for
prosthetics and orthotics.
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HISTORY
Blacksmiths and armor makers were
the first orthotists, then ship builders
and metal workers used their
expertise to develop more detailed
devices.
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HISTORY- EARLY YEARS
3500 - 1800 BCE- The first recorded
prosthesis was found in the book of
Vedas written in Sanskrit, India.
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HISTORY- EARLY YEARS
484 BCE- Herodotus, wrote about a
Persian imprisoned soldier, who
performed an amputation on his own
foot to escape from the stocks.
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Evolution of Prosthetic Devices
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EARLY PROSTHETIC DEVICES
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TURN OF THE CENTURY
BREAKTHROUGHS 1960’s- Research efforts into human
locomotion biomechanics and the development of new material and devices.
1970’s- Infancy of vacuum forming sheet plastic. Experimentation with Kevlar, carbon, and fiberglass in thermo-setting applications of resins.
1980’s- Continuing introduction of new materials and methods. The rapid evolution was seen as a changing discipline.
1990’s- Georgia Tech offered entry level graduate degree program in prosthetics and orthotics.
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PROSTHETIC FEET
S.A.C.H.- Solid Ankle Cushion Heel
Single -Axis Design
Multi-Axis Design
Energy Storing and Response Foot (ESR)
Flex Type Foot
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PROSTHETIC FEET
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HISTORY OF SOCKET
DESIGNS Plug Socket- soft tissue around groin
supported body weight.
Quadrilateral Socket- socket divided
into 4 walls.
Ischial-Ramal Containment Socket
(IRC)- stabilizes pelvis and femur by
controlling the ischium.
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SOCKET DESIGNS
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EMERGING TECHNOLOGIES
Direct Bone Attachments
Robotic Limbs
◦ Boston Arm- movement on 5 axes
◦ i-Limb- 5 individually powered digits
John’s Hopkins University’s Applied Physics
Laboratory
Developed a prosthetic arm prototype for the
Defense Advanced Research Projects Agency
(DARPA) that can be controlled by a human
brain.
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MODERN PROSTHETIC
DEVICES
I-Limb Renegade Foot
C-Leg
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CHALLENGES OF THE
DISABLED1. Socializing- passive approach
2. Support- independence or dependence
3. People’s attitudes- makes life difficult
4. Repeated past rejections- “snowball
effect”
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CHALLENGING IDEAS
1. Small ideas or steps- short range goals that can be easily reached.
2. Take the first steps- Feel confident and visualize, then attempt and accomplish.
3. Focus on can do- get rid of past rejections and take the risk. Use a non-passive approach.
4. Don’t let environment get in the way- get involved in mainstream society, and enjoy the same life experiences as others.
5. Understanding differences- knowing that people are more alike than different. Being sensitive to the situation .
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MOTIVATION IS KEY
Motivation and support are a must!
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PERCEPTION IS KEY
Perception is 90% real, just do it!
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PARADISE
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CULTURE
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TRANSPORTATION
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BOHOL, PHILIPPINES
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MEDICAL MISSION
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ASSISTANT HOWARD
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COUNSELOR CAFE
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MEDICATION FROM
AMSTERDAM
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ILLNESS AND DISEASE
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UPPER EXTREMITY
PROSTHETICS
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CAN’T HELP EVERYONE
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CONTACT INFORMATION
Mike Norell
Norell Prosthetics Orthotics, Inc.
http://www.norellprostheticsorthotics.com
205 South Drive
Mountain View, CA 94040
650/968-7464