Prosthetics

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Proposal: The Future of Prosthetics

Research Paper by Travis Pollen

Motivation for Project

I myself wear a prosthesis and am very interested in learning about the future of prosthetics as it pertains to myself as well as bioengineering. (Is there a code of ethics involved?) The situation over the summer involving the sprinter Oscar Pistorius really piqued my curiosity. Could artificial limbs really work better than human ones? Taking into consideration that I’m also missing my knee, could my artificial limb (with the flex foot and hydraulic knee) eventually be as good or better than my human leg? At what price? Also, after seeing I, Robot, I want to know if the technology exists now or is in the making for prosthetic limbs to look like human ones. I’m excited to utilize Swarthmore’s online resources such as science journals to get the newest information out there on this field.

Description of project

Five to six page paper that will include -- in technical as well as lay terms -- the history of prosthetics, current technology, and what the future may hold. I will also research who is doing the most state-of-the-art work, where the work is being done, how much it is costing, and who it is benefiting.

Time line

11/20 – Collect information from various sources and in various formats. 11/24 – Begin Wiki page, inputting information such as sources and notes. 11/25-12/8 – Create outline for final paper including source information. 12/9 – Present findings to class. 12/10 – Post final paper to Wiki.

==Notes== INCLUDE PAGE NUMBERS INCLUDE PAGE NUMBERS INCLUDE PAGE NUMBERS

Orthopedic Prosthetics and Orthotics in Rehabilitation. Bronzino, Joseph D. The Biomedical Engineering Handbook. Hartford: CRC Press, 1995.

Prosthesis - external devise that replaces lost parts or functions of neuroskeletomotor system -2055 Necessary after disease, trauma, or even birth Body has lost weight and is no longer symmetrical and balanced Engineers daunted by design requirements for prostheses In order for prosthesis to function like a human leg, it must provide structural support for upper body when standing and walking (complex joint articulations and muscular motor system), sensory feedback (pressure, length, force, position sensors) There's no foot on which to bear weight, load has to be transferred elsewhere, where depends on the individual's limb shape Strive to make limb of similar weight with powerful motors and sensors connected to patient's neuromuscular system OR accept loss and redefine optimal function of new unit of person+technology Interface between external environment and human body isn't natural, especially for use during all waking hours (often 16 continuous hours) and right up against skin FUTURE: Direct transcutaneous fixation to bone leads to infection due to lack of materials biocompatibility -2056


Artificial Limb. Schlager, Neil. How Products are Made: an Illustrated Guide to Product Manufacturing. Detroit: Gale Research Inc., 1994.

We Have Always Been Bionic. Perkowitz, Sidney. Digital People: From Bionic Humans to Androids. Washington, D.C.: Joseph Henry Press, 2004.

Hin, Teoh Swee. Engineering Materials for Biomedical Applications. London: World Scientific, 2004.

Perspectives on How and Why Feet are Prescribed. Journal of Prosthetics and Orthotics > 2005 Vol. 17, Num. 4S > pp. 18-22

Terminology in Prosthetic Foot Design and Evaluation. Journal of Prosthetics and Orthotics > 2005 Vol. 17, Num. 4S > pp. 12-16

Enrique Ergas, "Prosthesis", in AccessScience@McGraw-Hill, http://www.accessscience.com, DOI 10.1036/1097-8542.YB990745