Let’s talk about the history of plaster saws. The plaster saw (“Plaster cast cutter”) was first patented by Homer H Stryker in the 1940s, and the most common cast cutting saw used today still bears his name: Stryker.
In his patent application, the plastic surgeon wrote: “My improved tool is very effective at cutting castings or other hard materials, but if the cutter accidentally touches human skin and does not cut fabrics or other objects, it will not cut or damage the skin surface or material unless they are quite strict support.”
Although it is difficult to imagine that gypsum removal technology has not improved much in about 70 years, sometimes simplicity is the purest form of genius.
Plaster saws are powered by electricity and they plan to use it on your arms or legs to cut off the plaster that touches your skin. How can you protect yourself from bloody disasters? All in all: resistance Once you know this secret, you can be a little more relaxed when the rotating metal saw blade falls on your body.
Resistance is not in vain. The principle that makes it work is very similar to what you notice in your daily life: If you try to write on a piece of paper that has no support, you can’t write a lot. The paper will only bend and move, with almost no resistance. But once the page gets hard, your pen or pencil will generate enough friction to mark the paper.
The same is true for using a plaster saw. Since the saw blade only vibrates and does not rotate, the skin can withstand contact without being cut (with a few exceptions). Therefore, the inflexible casting material – gypsum or fiberglass – provides a lot of resistance and the plaster saw can do its job.