MSM wrist 0.2 [prototype]
Posted on October 29, 2009
Our first prototype (also check the road map) had to be wiggle free, be rock sturdy and be fast to produce.
Our second prototype now is the type of lock that I always wanted - sleek, rock solid and superbly functional.
Functions:
- Lift as much weight as my silicon liner can transmit on the arm.
- No wiggle.
- Switch any rotational position and switch it fast
Filed Under Brands, MDP Meili, Prosthesis, Prosthetic wrist connector | Leave a Comment
The Mesmerized Bunny Effect
Posted on October 28, 2009
Why do people go ‘aah‘ when they see someone go at a boombox voice “with this bionic hand, you can open a bottle of water”? I mean, you can open that bottle in all varieties of ways, not just with cheap electronics sold for a gagazillion. I open stuff without prosthesis, with the hook, with a hand, I have asked other people to open a bottle for me - however I go about it, it’ll be open in the end.
Why do people think of “all the things one can do” with some new hip rendy thing but really, they are feature blind? Really they completely overlook that there are in fact no really relevant new features?
Because of the Mesmerized Bunny Effect.
Intuition is not what it seems and they’ll ream you for it. They will take every last penny if you don’t pay attention.
Filed Under Disability and the public, Media, Science fiction, Stigmatization | Leave a Comment
Tech bits I - bolt and cable specs for Otto Bock compatible wrist units
Posted on October 28, 2009
Specifications for Otto Bock compatible / MSM 0.1rev wrists:
1. Screw
The terminal devices should have a 12 x 1.5 mm thread (Gewinde).
2. Bolt
The bolt that we’d fit over the screw is to make it compatible with current follow-on adapters that we use. It’s a regular Otto Bock bolt with sub 16.00 mm diameter, such as 15.99 mm or thereabouts.
3. Crown / cylinder adapter
For our own wrist series, we use fitting adapters that fix to the Otto Bock 16 mm diameter specification regardless of the degree of sloppy manufacturing (after all one of my bolts is only 15.88 mm and we also beat that one into wigglefree submission).
4. Cable connection
There should be a steel cable. We then clamp on the little metal piece that provides the interface to the cable lock.
Length from wrist backwards: optimally the cable should be at least 8 cm long.
Diameter: it should have a 1 mm diameter.
Filed Under Cable control, Support | Leave a Comment
Smart Hand project
Posted on October 24, 2009
A very ambitious hand project builds a new bionic anatomic looking and directly nerve connected hands. It is advertised to achieve 80% of grips necessary for daily living but not manipulation:
http://www-arts.sssup.it/newCyberhand/smarthand/index.htm
From a functional point of view, the hand will be able to perform at least the 80% of the grips necessary in activities of daily living (ADLs) , i.e. palm opposition grasps (power grasps), a small set of pad opposition grasps (precision grasps) and lateral grasps. For this reason, the developed hand will be a fine device for grasping tasks but not for manipulation. In fact, the hand transmission and actuator system based on underactuated mechanisms do not permit the direct control of all degrees of freedom.
This in my eyes is a relevant statement as it means that someone would - first of all - not even complete all actions necessary for ADL with that hand and still put up with all that surgery and drama. Amazing!
Filed Under "Bionic" prostheses, Prosthesis, Research, Science fiction | Leave a Comment
Becker Lock Grip Hand [Deutsch]
Posted on October 20, 2009
This article is also available in English.
Bisher hatte ich zwei Otto Bock Hooks (MovoHook 2Grip) und zwei Otto Bock Systemhände Typ 1-Zug (zieht man, geht sie auf, lässt man los, geht sie zu. Diese Art von Hand ist ganz nett und passt auch ganz gut zu den kosmetischen Handschuhen - aber wegen ihren adaptiven Greifmöglichkeiten machen neue myoelektrische Handprothesen einfach viel mehr Spass. Sie sind weder besonders gut verfügbar (Otto Bock Michelangelo, eventuell ab 2011; Touchbionics iLimb, Kostenpunkt etwa 78′000 CHF), noch besonders schnell, noch sind sie aufgrund ihrer Schafteigenschaften für mich derzeit überhaupt komfortable oder belastbar tragbar (siehe Vergleich). Aber so ein adaptiver Griff - das macht wirklich Spass.
Filed Under "Bionic" prostheses, Article in German - Artikel auf Deutsch, Becker Hand [Lock Grip, Imperial] {mechanical hand}, Becker Hand [Lock Grip, Imperial] {mechanical hand}, Brands, Cable control, Prosthesis, Prosthetic hand, Prosthetic hook, Tricks and techniques | Leave a Comment
Becker Lock Grip hand [English]
Posted on October 19, 2009
Diesen Artikel gibts auch auf Deutsch.
My current setup so far only contained two Otto Bock System Hands - this model is a voluntary opening hand with a clamp mechanism. The Otto Bock hand is very nice and useful but obviously current myoelectric hands are more fun due to their adaptive grip options - far too expensive for that bit of electronics they contain, not too functional as they are slow to react, very cumbersome, and due to socket issues painful and not possible for me to wear right now - but far more fun. So I am in search for a good prosthetic terminal device.
Filed Under "Bionic" prostheses, Artwork and Do It yourself Corner, Becker Hand [Lock Grip, Imperial] {mechanical hand}, Becker Hand [Lock Grip, Imperial] {mechanical hand}, Brands, Discrimination, Prosthesis, Prosthetic hand, Tricks and techniques | Leave a Comment
Dan Horkey takes prosthetic socket artwork to *CHROME*
Posted on October 14, 2009
Dan Horkey of Global Tattoo Orthotic Prosthetic Innovations (GTOPI) has taken prosthetic socket coolness to the ultimate - chrome! He is testing the new chrome finish and hopes to make it available soon so you can now get yours fully chromed.
This is way cooler than anything there was before. It goes way beyond my beloved chromed cuckoo clock art project. It is so real you could probably use it as shaving mirror.
This one is the real deal:
Filed Under Artwork and Do It yourself Corner, Brands, Prosthesis, Socket/liner | Leave a Comment
Potential Influence of One-Handedness on Politics and Philosophy of the 20th Century
Posted on October 14, 2009
This article is Copyright © 2009 Published by Elsevier Inc.
To the Editor:
Inspired by the article by Drozdov et al. Evolution of one-handed piano compositions, [1, Copyright 2008 American Society for Surgery of the Hand] we would like to add 2 annotations on the issue of hand loss and its potential influence on 20th-century politics and philosophy.
Filed Under Disability and the public, Support | Leave a Comment
