Sharp Steel Blade
Sharp Steel Blade
why don’t they use more ceramic blades in surgery?
ceramic blades
http://www.youtube.com/watch?v=JFnT5INymiY
1. they’re sharper
2. they don’t rust
3. they stay sharper longer
4. steel blades will shatter too if you’re not careful
5. in the long run they might save money
6. the NHS has already wasted billions on an IT system that doesn’t really work!
its not just scalpel blades!
if a sharper blade allowed the operation to be done more quickly (and accurately?) then efficiency would increase and costs would go down?
Well, first off that’s an engineering question more than anything else, but there are lots of drawbacks to ceramics as well from a purely physical perspective.
Probably the most relevant reason they’re not used is that basically none of the advantages you’re listing are really relevant. Scalpels are one-use only, the blades are individually packaged and sterile, and they’re discarded after use. If one becomes blunt, you just throw the blade away and use another. So holding an edge longer and resisting rust aren’t really relevant, nor is the sharpness really, if you’ve ever seen a scalpel blade, you should know they’re plenty sharp, they go through skin, subcutaneous tissue, muscle, and fibrous tissue without much effort at all. As for the shattering, well, ceramics do that as well, and if a surgeon is using enough force on a scalpel that it becomes an issue, he’s doing something (probably several things) wrong anyway.
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