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Category: Activities of Daily Living and Sports

How to apply wood screws in series - demonstration, difficulties [bench work]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - How to apply wood screws in series - demonstration, difficulties [bench work]; published October 26, 2018, 14:52; URL: https://www.swisswuff.ch/tech/?p=8717.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - How to apply wood screws in series - demonstration, difficulties [bench work]}}, month = {October},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8717}}


I happily cut and mounted two wooden boards into a pre-existing shelf frame. For that, a series of wood screws were put into place.

If you are interested in mount, assembly, and screws, read these earlier posts, too:

Dismantling, loading, transporting, unloading and reassembling shelf [bimanual, activity] {illustration, a peek into the life of a person with a handicap}

 

Drill a screw [1-handed way]

The ultimate bimanual task - the IKEA Pax wardrobe system with gliding doors [tricks,tips and yeehaw]

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How to sharpen a pencil fast [technical advice]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - How to sharpen a pencil fast [technical advice]; published October 26, 2018, 14:34; URL: https://www.swisswuff.ch/tech/?p=8713.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - How to sharpen a pencil fast [technical advice]}}, month = {October},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8713}}


The modern Cyborg does not so much excel in having a prosthetic arm that does everything - that would be similar to promoting rainbow colored unicorns: these do not exist.

The modern Cyborg works with modern tools for fast and good results. He thus sharpens pens reliabily and well.

Here is how.

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BLUE LIGHT SPECIAL: Pitch black cynicism in the Cybathlon 2020: "the role of a disabled person" [not funny]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - BLUE LIGHT SPECIAL: Pitch black cynicism in the Cybathlon 2020: "the role of a disabled person" [not funny]; published October 25, 2018, 23:02; URL: https://www.swisswuff.ch/tech/?p=8680.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - BLUE LIGHT SPECIAL: Pitch black cynicism in the Cybathlon 2020: "the role of a disabled person" [not funny]}}, month = {October},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8680}}


"With that, visitors of the Cybathlon Experience (TM) can test the role of a disabled person" (können in die Rolle einer behinderten Person schlüpfen) (Oral presentation: "CYBATHLON – bewegt Mensch und Technik", 5.15pm–6.00pm, Dr. Roland Sigrist, Cybathlon, ETH Zurich, Raum E 1.2) -- I was there, one among the 8 people that made the audience of this "sold out" Cybathlon talk; amputees are there for "entertainment" (clearly one of the requirements written on a slide in the presentation) (ist es das, was wir als behinderte Personen spielen? eine Rolle, ja?).

After defining a remarkably strange prosthetic arm race, the makers of the Cybathlon 2020 now start to openly bathe us in their pitch-black cynicism.

Why? Pressing question.

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Embodiment of a prosthetic arm [reflections, thoughts, considerations]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Embodiment of a prosthetic arm [reflections, thoughts, considerations]; published September 16, 2018, 15:42; URL: https://www.swisswuff.ch/tech/?p=8513.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Embodiment of a prosthetic arm [reflections, thoughts, considerations]}}, month = {September},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8513}}


So, apparently I had been "identified" as a "super prosthesis user" by a group of researchers. And I was invited to talk about embodiment in context of the "rubber hand illusion" at a user interface or robotic control workshop [link].

So is that what I am: a "user"?

Tsk.

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Remote controlled turn signal for bicycle [upgrade]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Remote controlled turn signal for bicycle [upgrade]; published August 29, 2018, 19:45; URL: https://www.swisswuff.ch/tech/?p=8470.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Remote controlled turn signal for bicycle [upgrade]}}, month = {August},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8470}}


With one armed biking, giving proper bike turn signals is usually not possible.

The trick therefore consists in a technical solution to indicate turns.

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Understanding and informing design issues of a prosthetic arm for below elbow amputation by way of "taxonomy" [literature review, reality check]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Understanding and informing design issues of a prosthetic arm for below elbow amputation by way of "taxonomy" [literature review, reality check]; published July 26, 2018, 21:18; URL: https://www.swisswuff.ch/tech/?p=7651.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Understanding and informing design issues of a prosthetic arm for below elbow amputation by way of "taxonomy" [literature review, reality check]}}, month = {July},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=7651}}


The academic and industrial attempts to approach prosthetic arms so far have been met with less success than the providers must have hoped for. Far less, in fact so little that we wonder what is going on.

Possibly, design issues are the key to this as however vaguely put, some analytic approach needs to inform better design - but how to really inform better design from issues based on analysis? What is a suitable analysis? If we cannot see any better designs anywhere in practice, real life, then what is the analysis worth? Can we analyze analyses to get a better understanding of what might be going on there?

We might best start with what we know to be true.

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Cybathlon 2020: introducing the BLUE LIGHT specials for the prosthetic arm challenges ahead [terminology, concept]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Cybathlon 2020: introducing the BLUE LIGHT specials for the prosthetic arm challenges ahead [terminology, concept]; published May 16, 2018, 09:52; URL: https://www.swisswuff.ch/tech/?p=8315.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Cybathlon 2020: introducing the BLUE LIGHT specials for the prosthetic arm challenges ahead [terminology, concept]}}, month = {May},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8315}}


"The Cybathlon 2016 demonstrated, in a comprehensive and entertaining manner, how people with disabili­ties can employ assistive devices." Novak, Domen, Peter Wolf, and Eugenio Guglielmelli. "Cybathlon 2016: Showcasing Advances in Assistive Technologies Through Competition [From the Guest Editors]." IEEE Robotics & Automation Magazine 24.4 (2017): 24-122.

An individual that just wants to stare at amputees to be entertained by them has no business being anywhere near rehabilitation, leave alone actual products, or people. Wolf Schweitzer, 2008.

Insights derived from the Cybathlon 2020 plan - the BLUE LIGHT Special Paragraphs

The proposed Cybathlon 2020 race setup (link) is out and the prosthetic arm race is relevant to read.

Seeing as if nothing tangible, visible, perceptible or legible appeared to have resulted from the Cybathlon for the benefit of prosthetic arms (that would have been the goal of the prosthetic arm race though, right, better prosthetic arms), the observations end up falling more under a sociological subject than a technical.

Therefore, I will introduce a category of BLUE LIGHT specials that - in that form as considered here - may be new: they combine sociological northern hemisphere aspects with technical aspects and considerations [1].

The Extreme Cyborging labels that I introduced a while ago, find increasing correlates here, with the BLUE LIGHT specials.However, as we shall see, these BLUE LIGHT specials may be more relevant than meets the eye.

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[1] D. Goodley and L. Swartz, "The place of disability," in Disability in the Global South, Springer, 2016, pp. 69-83.
[Bibtex]
@incollection{goodley2016place,
  title={The place of disability},
  author={Goodley, Dan and Swartz, Leslie},
  booktitle={Disability in the Global South},
  pages={69--83},
  year={2016},
  publisher={Springer}
}

3D-print molded Protosil RTV 245 (durometer shore 40A) silicone covers for Toughware Equilux [proof of concept, demo of "bionic" grip]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - 3D-print molded Protosil RTV 245 (durometer shore 40A) silicone covers for Toughware Equilux [proof of concept, demo of "bionic" grip]; published February 4, 2018, 11:50; URL: https://www.swisswuff.ch/tech/?p=8248.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - 3D-print molded Protosil RTV 245 (durometer shore 40A) silicone covers for Toughware Equilux [proof of concept, demo of "bionic" grip]}}, month = {February},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8248}}


It is sometimes more fun to present the technical results before or even instead of explaining exactly why.  So in short, I 3d-designed and then printed molds to make grip covers for really serious grip performance of a Toughware Equilux device.

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Modifying Shimano Ultegra road bike setup on a Colnago C40 for left handed use - second approach [technical right below elbow amputee core focus work / bike adaptation]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Modifying Shimano Ultegra road bike setup on a Colnago C40 for left handed use - second approach [technical right below elbow amputee core focus work / bike adaptation]; published January 27, 2018, 15:30; URL: https://www.swisswuff.ch/tech/?p=8196.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Modifying Shimano Ultegra road bike setup on a Colnago C40 for left handed use - second approach [technical right below elbow amputee core focus work / bike adaptation]}}, month = {January},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8196}}


After a first approach, where also the history and idea where it came from is detailed [link], I now set up and tested a second approach to modifying my Colnago C40 carbon bike with a triple chainring Shimano Ultegra chainset.

The extensive testing of my first approach that I had performed there lead to a range of concise detailed issues and problems. There were now addressed, all, and thus a second (and significantly better) approach resulted.

As stated before, no disability sports advocate specializing in road bikes and no bicycle mechanic specializing in individualization and custom solutions over the years ever thought this was possible in this way. They all said it could not be done. And I had asked a few of them, since it had bugged me a lot. And as I had sold my Cannondale road bike after the amputation, thinking there was no way, I now got myself a road bike back and decided to go down my own path to really use it the way it is meant to be used.

Generally and as part of riding a road bike, I wanted fast and comfortable gear switching, fast and accessible and comfortable braking, and I wanted to be able to enjoy various and if possible equally comfortable sitting positions or body positions. A great road bike trip may be a lot longer than a fast mountain bike trip into the forest. Last but not the least, as amputee my stump usually would suffer from vibration induced pain after 20 minutes  particularly with hard connectors such as the Mert or Freelock adapters, so padding definitely was an issue.

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Bad Hand Day V - will the mobile app actually start?

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Bad Hand Day V - will the mobile app actually start?; published January 23, 2018, 23:01; URL: https://www.swisswuff.ch/tech/?p=8150.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Bad Hand Day V - will the mobile app actually start?}}, month = {January},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8150}}


As I was lucky tonight, the app for the Touchbionics iLimb actually started after the 8th attempt. That is better than it was, there were times when it did not start at all.

So first, one spends a bit of time "warming the system up".

Time lapse video loop (2x), exuding serene obsolescence:

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Case-study of a user-driven prosthetic arm design: bionic hand versus customized body-powered technology in a highly demanding work environment [article out]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Case-study of a user-driven prosthetic arm design: bionic hand versus customized body-powered technology in a highly demanding work environment [article out]; published January 4, 2018, 14:29; URL: https://www.swisswuff.ch/tech/?p=8066.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Case-study of a user-driven prosthetic arm design: bionic hand versus customized body-powered technology in a highly demanding work environment [article out]}}, month = {January},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=8066}}


 


This is a blog post of one of the rare focused and well based scientific journal articles that really explains how real work, body powered and myoelectric arms relate and go together for a unilateral right below elbow amputee in a physically demanding work environment.

The prior presentation of this paper [poster at Cybathlon symposium 2016], which had been more pragmatically worded (with me thinking people would know anyway), this was now written up as article and published. During that process, the reviewers clearly made great points of all kinds of aspects I never knew were not sky clear to everyone.

So maybe, writing a ~ 30 page case study with > 210 references does clarify stuff, at least potentially and for those that actually read it. But possibly, it still requires attention to even just read it.

Knowledge does not come easy, Highlander! (Nakano, in: Highlander III The Final Dimension)

 

If you are more interested in visionary posts, read about the gadget features of the prosthetic arm in Kingsmen: The Golden Circle [link]. And technically, myoelectric control did have it coming. That technology remained uncool for four decades [link].

Publication [link]

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Kingsman: The Golden Circle [movie review]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Kingsman: The Golden Circle [movie review]; published January 4, 2018, 14:28; URL: https://www.swisswuff.ch/tech/?p=7967.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Kingsman: The Golden Circle [movie review]}}, month = {January},year = {2018}, url = {https://www.swisswuff.ch/tech/?p=7967}}


The 2017 movie Kingsman: Golden Circle gets it wrong again, and yet, it has so many critical new features we need to review these.

This movie has the capacity to inspire massive innovations, so it would be quite realistic to expect Disney / 20th Century Fox to also finance prosthetic arm development of their vision of what could be.

This then would not be new. Prosthetic industries seem to run after science-fiction role models, with the following examples:

  • Luke Arm [link]
  • Deus Ex Machina arm [link]

Now, this Kingsman: The Golden Circle movie features an amputee, just as the first Kingsman: The Secret Service movie did. There, a leg amputee was featured whereas here, we have an arm amputee with us.

Stereotypically, the arm amputee, again, is the villain.

Stereotypically, the arm amputee lacks assertion, self assertion or expression of relevant emotions, and ever so stereotypically, the arm amputee villain is killed in due process of the storyline.

Stereotypically as well, the actor himself is not an amputee - which, from view point of directing or producing and surely watching this movie, is definitely wrong. A movie industry that cannot rely on amputee actors for amputee roles clearly defies its purpose on more than one level.

However, one cannot say that lack of authenticity with respect to the amputee character is a valid point of critique in this Kingsman film. This is almost pure visual fairytale telling.

And despite all attempts to be ridiculous and detached from a real world, and despite the usual stereotypical placement of an arm amputee in this movie, Kingsman: The Golden Circle has cool gadget features, that some day we want to see on real prosthetic arms.

So the movie deserves a close look from viewpoint of arm amputee prosthetics despite the usual concerns.

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Cracking an egg single-handedly [ANPPN - activities of no particular prosthetic need]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Cracking an egg single-handedly [ANPPN - activities of no particular prosthetic need]; published December 13, 2017, 13:18; URL: https://www.swisswuff.ch/tech/?p=7890.

BibTeX: @MISC{schweitzer_wolf_1571790783, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Cracking an egg single-handedly [ANPPN - activities of no particular prosthetic need]}}, month = {December},year = {2017}, url = {https://www.swisswuff.ch/tech/?p=7890}}


With the current on-going search for "tricks" or "solutions" to "solve" manual problems of ADL (activities of daily living), one very large unexamined domain is how to live life without a prosthetic arm on.

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