biomedical repair he_new_bionics_that_let_us_run_clim b_and_dance?language=en
TRANSCRIPT
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BIOMEDICAL REPAIR
https://www.ted.com/talks/hugh_herr_the_new_bionics_that_let_
us_run_climb_and_dance?language=en
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Prosthetics
Prosthesis
• An artificial extension that replaces a missing body part
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• Typically used to replace a missing body part or enhance a defective body part– Lost by injury (trauma)– Missing from birth (congenital)
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• Common uses: artificial heart valves
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• Artificial hearts and lungs
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• Artificial eyes
https://www.youtube.com/watch?v=VtrrMn4EUKU
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• dentures
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Prosthetic enhancement
• 2008, Oscar Pistorius was disqulified as an olympic runner due to the “unfair mechanical advantage” of his prosthesis
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• Mechanical parts could soon surpass human equivalents in their efficiency…
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• Part of biomechatronics: the science of using mechanical devices with human muscle, skeleton, and nervous systems to assist or enhance motor control lost by trauma, disease, or defect
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• Biosensors detect what the user wants and relay that information through the user’s nervous/skeletal system to a controller
• The controller located inside the device will than control the device, sensing the limb’s position and force
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Amanda Kitts is learning to use her new limb…
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• Claudia Mitchell, former Marine and amputee, has tested a prosthetic arm developed by Dr. Todd Kuiken at the Rehabilitation Institute of Chicago
• re-directed the nerves that control her missing arm to her chest. The nerves re-grew close to the skin of her chest.
• Tiny electrodes on her skin pick up the electrical activity of these nerves and send signals to the motors in the arm.
• She is able to control the arm's movements by thinking about it
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Greg Gadson lost both his legs in a roadside bomb in Iraq and is now “meshing my 43-year-old body with a machine”
https://www.youtube.com/watch?v=CDsNZJTWw0w
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• Can be used to enhance our own function, ex. carry a large/heavy load
• It is estimated that within 20 years artificial limbs could have skin that senses temperature and touch…
• http://www.scientificamerican.com/article/world-cup-to-debut-mind-controlled-robotic-suit/?&WT.mc_id=SA_HLTH_20140610
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Artificial organs
• Man-made device that is implanted into a human to replace a natural organ to restore a specific function
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An extremely expensive process, used for:1. Life support to prevent imminent death while
awaiting a transplant (e.g. artificial heart)
2. Dramatic improvement of the patient's ability for self-care (e.g. artificial limb)
3. Improvement of the patient's ability to interact socially (e.g. cochlear implant)
4. Cosmetic restoration after cancer surgery or accident
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Types of artificial organs
• Brain pacemaker– Sends electrical impulses to brain to relieve
depression, epilepsy, tremors
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• Artificial valves– Especially at ends of stomach, to help with
function of sphincters– Used for esophageal cancer, reflux disease
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• Artificial pacemaker– Electronic device that helps to keep the heart
contractions regular
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• Artificial ear– Cochlear implants to help with hearing or
cosmetic repair
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Cosmetic Surgery
• Has been around since ancient times:– Ancient Romans used to repair damaged ears
• One of the most common is skin grafts
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• Can be reconstructive: to correct functional impairments caused by injuries (ex. burns, car accidents, cancer, etc.)
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• Or can be cosmetic, to cause “enhancement” of appearance– 12 000 000 were performed in US in 2007– Most common: tummy tuck, eyelid tuck,
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• …mammoplasty (breast reduction/augmentation)
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• Buttock augmentation, chemical peels, rhinoplasty, etc. etc.
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• Nose job: $4,000 to $7,000 • Facelift: $7,000 to $10,000 • Breast implants: $5,000 to $8,000 • Liposuction: $2,000 to $10,000, depending on
how many areas fat is removed from and what technique the surgeon uses to remove it
• Tummy tuck: $6,000 to $8,000 • Vein treatment: $500 to $2,000 per treatment,
depending on the technique used • Dermabrasion: $2,000 to $4,000