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Stabilizing rod-like item with a prosthetic hook [two ways]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Stabilizing rod-like item with a prosthetic hook [two ways]; published June 23, 2016, 16:36; URL: https://www.swisswuff.ch/tech/?p=6205.

BibTeX: @MISC{schweitzer_wolf_1571403644, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Stabilizing rod-like item with a prosthetic hook [two ways]}}, month = {June},year = {2016}, url = {https://www.swisswuff.ch/tech/?p=6205}}


There are basically two ways to stabilize a rod-like item (fork, knife, rod, etc) with a prosthetic hook.

The first way to place a knife or other item with a similar shape into the hook is by using the cable attachment as lever to avoid the item to slip out.

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While this is the "obvious" way to do it, it is not without its dangers. One can firmly press down - as when cutting a not so tender meat with a not so sharp knife - but watch closely; here, we are still OK with pressing down...:

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And due to (a) limited amount of rubbers and (b) the geometry of the knife versus the geometry of the hook device, the knife will swivel under sufficient pressure:

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So, for very extensive pressure, I will place the item into the hook's base such as this:

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Now, the hook has two claws one of which does NOT move.- Turning that one up as shown here, one can then basically exert very large amounts of pressure onto the item such as a knife.

 

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Adding a small wire loop or rubber band can also help to add stability in any other direction.

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