expletive-ethereal
expletive-ethereal
expletive-ethereal
expletive-ethereal

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_1566725667, 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]

Read More

Fixing espresso machine: swap pump of Rancilio Silvia [Extreme Cyborging]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Fixing espresso machine: swap pump of Rancilio Silvia [Extreme Cyborging]; published August 24, 2019, 08:57; URL: https://www.swisswuff.ch/tech/?p=10055.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Fixing espresso machine: swap pump of Rancilio Silvia [Extreme Cyborging]}}, month = {August},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=10055}}


No Comments

While our contemporary circus directors keep fighting with true elephants (Catch-22s: should one hammer with an iLimb? [link] - should one exhibit defect iLimb gloves under use in public? [link]), I used true and established technology [TRS Jaws - link] and fixed my coffee machine by replacing its pump.

While a new coffee machine (the same model but new) would cost me around 800 USD and while a repair by a company or specialist would cost me maybe around 400 USD, the replacement pump that I got via eBay from Bulgaria was 34,90 USD, with shipping 13 USD. Furthermore, the new pump was better - a more solid build, quieter. In addition, I did not have to suffer absence of the machine for more than about half an hour.

So while I do understand why people prefer to chose their prosthetic hand devices for their suitability for posing with them [link], I would propose to anyone that there might be a possibly more meaningful life beyond that.

Read More

TRS Jaws [new product - first use report]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - TRS Jaws [new product - first use report]; published August 10, 2019, 10:51; URL: https://www.swisswuff.ch/tech/?p=9769.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - TRS Jaws [new product - first use report]}}, month = {August},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9769}}


1 Comment

The TRS Jaws is a voluntary opening gripper where you can set the grip strength by a lever. The grip then varies between very light, maybe under 1 kg or so, to somewhere above 5 kg. This is a first real use report, after I used it permanently since roughly around May 21, 2019, give or take a few hours.

There are just a few points to address at this stage. If you wear a body powered arm for real work [link], you may now buy one.

Read More

Adapting mountain bike (CUBE ACID 29", 2019) for left handed use [photos]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Adapting mountain bike (CUBE ACID 29", 2019) for left handed use [photos]; published August 10, 2019, 10:17; URL: https://www.swisswuff.ch/tech/?p=9900.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Adapting mountain bike (CUBE ACID 29", 2019) for left handed use [photos]}}, month = {August},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9900}}


No Comments

"Last year, South Africa's Greg Minnaar (Santa Cruz Syndicate), a three-time UCI World Champion, won a record extending 20th Downhill World Cup in Fort William, Scotland. What made these wins unique was that they were the first World Cup events to be won on a bike with 29" wheels. (..) So does this mean the debate is over, and 29" wheels have replaced 27.5" ones? Not so fast!"-- Thinking about wheels? Michal Cerveny [UCI news]

As my trusted old Cube bike died due to age (profuse hydraulic leaks, spare parts > 1 month away, while on bike holidays) it was clear I had to replace it. So I bought the useful (but not overly expensive) CUBE ACID, with 29" wheels, model year 2019, for something over 900 Euros. The dealer gave me a lower price than the indicated / recommended one.

More history is here [link] with my coolest bike mod so far being the Colnago road bike with switched Ultegra levers [link].

Read More

Alita Battle Angel [review - SPOILER ALERT]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Alita Battle Angel [review - SPOILER ALERT]; published August 10, 2019, 06:19; URL: https://www.swisswuff.ch/tech/?p=9815.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Alita Battle Angel [review - SPOILER ALERT]}}, month = {August},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9815}}


No Comments

This is a review of Alita Battle Angel [link] from view of a right below elbow amputee (see title of this blog maybe?). Herewith, I also issue a SPOILER ALERT.

Read More

How robot technology that is advertised with technically insufficient propaganda numbers does make us truly angry [movie reference: HBO miniseries "Chernobyl"]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - How robot technology that is advertised with technically insufficient propaganda numbers does make us truly angry [movie reference: HBO miniseries "Chernobyl"]; published June 21, 2019, 18:12; URL: https://www.swisswuff.ch/tech/?p=9711.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - How robot technology that is advertised with technically insufficient propaganda numbers does make us truly angry [movie reference: HBO miniseries "Chernobyl"]}}, month = {June},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9711}}


Sometimes, even a fictionalized docu-drama hits all the right notes.

Read More

How is "John without arms" an ableist derogatory Brazilian / Portuguese idiom that directly attributes ignorance and laziness to disability and then uses it a technical amputation descriptor to denote the lazy or ignorant?

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - How is "John without arms" an ableist derogatory Brazilian / Portuguese idiom that directly attributes ignorance and laziness to disability and then uses it a technical amputation descriptor to denote the lazy or ignorant?; published June 20, 2019, 05:33; URL: https://www.swisswuff.ch/tech/?p=9683.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - How is "John without arms" an ableist derogatory Brazilian / Portuguese idiom that directly attributes ignorance and laziness to disability and then uses it a technical amputation descriptor to denote the lazy or ignorant?}}, month = {June},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9683}}


João sem braço ("armless John") is a Brazilian or Portuguese idiom that is used as an epithet for an ignorant and lazy person.

As that in itself is hardly a positive attribute, it is relevant to understand the position of amputees in society, their individual and collective role, in order to see how this is a very ableist and thus derogatory way to formulate the attribute of ignorant or lazy.

Can you open the zipper of my pants please? - Why, do you need to go to the bathroom? - No... (from [link])
Read More

BLUE LIGHT SPECIAL - defect iLimb glove poses tricky Catch-22 for Cybathlon 2020 [review]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - BLUE LIGHT SPECIAL - defect iLimb glove poses tricky Catch-22 for Cybathlon 2020 [review]; published April 21, 2019, 14:42; URL: https://www.swisswuff.ch/tech/?p=9987.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - BLUE LIGHT SPECIAL - defect iLimb glove poses tricky Catch-22 for Cybathlon 2020 [review]}}, month = {April},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9987}}


The Cybathlon 2020 race rules confront us with two interesting Catch-22 aspects:

-hammering (if not other dangerous) activity that is not endorsed by "bionic" hand manufacturers [link]

-use of damaged / perforated covers, not endorsed by Ossur (see here)

The iLimb user / clinician manual clearly states "do not use without an approved cover", "do not use with a damaged cover", and, "damaged covers must be replaced by a qualified Touch Bionics technician or technical partner" 1.

However, the Cybathlon Karlsruhe 2019 footage clearly exhibits a torn and perforated glove (defect over the knuckle of finger II/index finger) being used during the competition during the task that has the competitor push a card into a slot.

From view of a user that had serious issues with these "glove covers" that Touch Bionics (then) / Ossur (now) sold for a premium, and who knows a lot about replacing these with better parts despite manual regulations, this is VERY interesting: because a damaged cover unnegotiably operates far outside the acceptable use condition that appears to be insurable. And insurance seems to be a thing there.

To remind you: Touch Bionics glove covers die by themselves when left alone [link] or when used for something as minor, uninteresting and light as a 10 minute car wash [link]. I was left to myself to identify a work glove [link] and a durable cosmetic glove [link].

Read More

BLUE LIGHT SPECIAL - Hammer use to hammer nails, with "bionic" prosthetic hand, poses tricky Catch-22 for Cybathlon 2020 [review]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - BLUE LIGHT SPECIAL - Hammer use to hammer nails, with "bionic" prosthetic hand, poses tricky Catch-22 for Cybathlon 2020 [review]; published April 20, 2019, 10:28; URL: https://www.swisswuff.ch/tech/?p=9594.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - BLUE LIGHT SPECIAL - Hammer use to hammer nails, with "bionic" prosthetic hand, poses tricky Catch-22 for Cybathlon 2020 [review]}}, month = {April},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9594}}


The Cybathlon 2020 race rules confront us with two interesting Catch-22 aspects:

-hammering (if not other dangerous) activity that is not endorsed by "bionic" hand manufacturers

-use of damaged / perforated covers, not endorsed by Ossur [link]

A hammer, particularly a cheap or small one, even more so than a heavy dangerous "real" hammer, is an unlikely tool to use with an ~80 000 USD myoelectric "bionic" device that is specifically built to sustain only the lightest of work. And the subject of hammering, technically, as arm amputee with a prosthetic arm, has become relevant since the Cybathlon 2020 directors [link] have taken it upon themselves to make it a "discipline".

STOP - HAMMER TIME?

Read More

Becker Hand - best grip in town [mechanism visualization]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Becker Hand - best grip in town [mechanism visualization]; published April 19, 2019, 11:57; URL: https://www.swisswuff.ch/tech/?p=9609.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Becker Hand - best grip in town [mechanism visualization]}}, month = {April},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9609}}


Visualisation of the mechanism or inner workings of one of the fastest "bionic" (i.e. it has an adaptive grip) prosthetic hands has so far been relatively elusive.

The mechanism is one of the most extremely evolved in prosthetic hand device history - the manufacturer overlooks around 70 years of continuous product evolution. As many large manufacturers today do not "listen" and are not open for suggestion or critical evaluation, they are not making most of their shorter time of product evolution, further crippling their already short market exposure. This explains why the Becker hand is one astonishing perfect product - highly functional, attractive, very robust and very affordable.

Now, we worked out how to plastically show the inner workings or mechanism of a Becker Imperial hand.

Read More

Zweimaltot - Beat Glogger (Buchbesprechung)

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Zweimaltot - Beat Glogger (Buchbesprechung); published April 9, 2019, 13:14; URL: https://www.swisswuff.ch/tech/?p=9492.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Zweimaltot - Beat Glogger (Buchbesprechung)}}, month = {April},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9492}}


Ich habe mir nun termingerecht das Buch "Zweimaltot" von Beat Glogger vorgenommen. Meine Buchbesprechung, Review oder Rezension hier verrät allerdings Einzelheiten über den Ausgang (Spoiler Alert).


(C) Copyright Reinhardt Verlag

Das Buch gibt es hier:

Read More

Soldering cable connection and heat shrinking tube over connection (Extreme Cyborging Microworks)

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Soldering cable connection and heat shrinking tube over connection (Extreme Cyborging Microworks); published April 4, 2019, 06:59; URL: https://www.swisswuff.ch/tech/?p=9463.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Soldering cable connection and heat shrinking tube over connection (Extreme Cyborging Microworks)}}, month = {April},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9463}}


A full understanding what amputees do or do not in their real life has so far escaped the acumen of research and development. This explains how > 85% of us still run free, without the real restriction of having to pay massive money for technology that basically makes life more difficult.

A notable exception is my body powered split hook. As we can show how academics comprehensively fail to grasp (haha) the scope and use of prosthetic arm use, even a modest achievement such as this appears quite noteworthy and definitely reportable. After all, absolutely no (0) achievement was delivered by any R&D in the domain of myoelectric arms to this day that has made it to actual everyday use and hard work delivery, both since Cybathlon 2016 (that promised it would "push" development) and generally since >40 years of "research" into myoelectric arm control. As they all have more than a lot to learn (not advancing problematically high error rates in >40 years is a catastrophe or wouldn't you say), we are called upon to focus on the basic.

Today, how to attach the cable of a power supply to a pump.

Read More

Prosthetic split-hooks are by far the MORE MODERN concept than prosthetic hands and they did not take long to get vilified [what you all got wrong about history]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Prosthetic split-hooks are by far the MORE MODERN concept than prosthetic hands and they did not take long to get vilified [what you all got wrong about history]; published March 3, 2019, 23:01; URL: https://www.swisswuff.ch/tech/?p=9423.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Prosthetic split-hooks are by far the MORE MODERN concept than prosthetic hands and they did not take long to get vilified [what you all got wrong about history]}}, month = {March},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9423}}


We are told by prosthetic R&D aficionados, by film makers, fiction authors, popular culture and whatnot, that a prosthetic hook (i.e., split-hook) is "old", and a prosthetic hand is "new". Also, we get told that myoelectric arms are very modern in terms of control technology, whereas some recent media and prosthetic manufacturers even called myoelectric control "brain control".

None of that is true, quite obviously, while we realize that reality is rather different. Rather strikingly different, in fact.

Read More

Was ist mit Cybathlon@SCHOOL moeglicherweise problematisch?

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Was ist mit Cybathlon@SCHOOL moeglicherweise problematisch?; published March 2, 2019, 11:39; URL: https://www.swisswuff.ch/tech/?p=9404.

BibTeX: @MISC{schweitzer_wolf_1566725667, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Was ist mit Cybathlon@SCHOOL moeglicherweise problematisch?}}, month = {March},year = {2019}, url = {https://www.swisswuff.ch/tech/?p=9404}}


Cybathlon@SCHOOL ist ein Programm, das Behinderte, Armamputierte auch, als "Material" bezeichnet und anpreist.

Read More

Do NOT follow this link or you will be banned from the site!
HTML Snippets Powered By : XYZScripts.com
I footnotes