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Tech bits III - prosthetic hands

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Tech bits III - prosthetic hands; published July 29, 2009, 22:56; URL: https://www.swisswuff.ch/tech/?p=211.

BibTeX: @MISC{schweitzer_wolf_1548297497, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Tech bits III - prosthetic hands}}, month = {July},year = {2009}, url = {https://www.swisswuff.ch/tech/?p=211}}


2 Comments

A look at an arbitrarily selected choice of prosthetic hands from close up. How realistic do they look?

iLimb

(C) Images Copyright Touch Bionics

Michelangelo Hand

(C) Images Copyright Otto Bock

Shadow Hand

(C) Image Shadow Robot Company

DEKA Arm

(C) Images Copyright DEKA Research

Real hand

Numbered distances see following section regarding dimensions.

Hand dimensions in comparison

Figures (pixel distances, numbered 1 to 23 see above) are rough estimation based on photos. Based on these, cluster analysis (Ward, normalized) places the Michelangelo hand a bit closer to my own (real) hand than the iLimb.

Michelangelo hand Real hand iLimb Michelangelo hand (normalized) Real hand (normalized) iLimb (normalized)
522.053345 751.835088 114.499834 0.87050556 1.56402644 0.95429755
422.654741 439.604368 48.031708 0.29537097 0.20226844 -0.5770208
334.58404 319.681091 44.023457 -0.2142188 -0.320763 -0.6693644
521.840046 301.728355 93.338883 0.86927138 -0.3990618 0.46678339
349.60958 264.612925 52.542553 -0.1272788 -0.5609364 -0.4730982
177.322898 268.745233 45.816056 -1.1241543 -0.5429138 -0.6280658
642.818346 318.025156 97.317639 1.56926919 -0.3279852 0.55844751
312.373081 284 59.817236 -0.3427346 -0.4763819 -0.3055013
172.430196 264.007576 41.552461 -1.1524642 -0.5635766 -0.7262922
540.036831 275.862284 102.531423 0.97456059 -0.5118736 0.67856468
317.796107 290.062062 43.550242 -0.3113561 -0.4499429 -0.6802665
163.895705 288.839056 42.232594 -1.201846 -0.4552769 -0.710623
375.791958 231.144976 73.790291 0.02421617 -0.706903 0.01641538
248.153394 190.042101 44.213068 -0.7143189 -0.8861684 -0.6649961
179.128127 288.839056 44.973282 -1.113709 -0.4552769 -0.647482
283.550574 298.804284 41.304525 -0.5095057 -0.4118148 -0.7320042
270.537 264.612925 42.657673 -0.5848041 -0.5609364 -0.7008299
211.096408 244.859143 42.722888 -0.9287359 -0.6470902 -0.6993274
141.541787 262.457616 47.066775 -1.3311889 -0.5703365 -0.5992513
675.120363 1040.03077 207.222696 1.7561733 2.8209584 3.09048263
700.087959 780.973751 123.999423 1.9006394 1.69111133 1.17315275
477.133605 575.433749 73.922946 0.61059349 0.7946725 0.01947154
507.399319 800.025 153.661008 0.78571526 1.77420114 1.85650779

2 Replies to “Tech bits III - prosthetic hands”

  1. I have read a few of your reviews on myo electric arms, I have read your input of your otto bocks batteries, that you have tooken apart to discover that they were only regular batteries. Well I agree with you that the technology for myoelectic arms are pretty simple, but they have come very far since otto boks claw 3 finger hand that has alot of pressure and power while trying to grip something, but my batteries lasted for 6 years and still going strong, and now i have a i limb pulse from touch bionics and it has changed my life in so many ways with so many grip patterns than otto bokcs 3 claw. Every article you write, it seems like you are badly knocking ever upper prosthetic device. Stop complaning an bitching if you cannot afford a i limg, bebionic ect, there are alot of us out there who love this technology rather than not having anything. If you dont like them, stop whining like a littl cry baby and dont wear one and stop knocking them!

  2. It only *seems* like I am "knocking ever[y] prosthetic device". In fact, I am not, but to discover the difference, the ability to read and understand could be a great asset. Maybe you should try it. Inasmuch as wasting 50'000 CHF on useless gadgets is concerned - I see your point, but you have to trust me that there are *** FAR *** better things to do with that type of money. There *** REALLY *** are. Be it as it may - you were the one to come here and read, you actively clicked through all these things, no one forced you to do that. As that, I take your comment with a smile and a well meant advice: wait it out, mate, puberty WILL pass.

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