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Idea vs. Ego
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Problem: People who've had surgery on their esophagus sometimes get a temporary stent inserted while it's healing, to keep it open enough so they can eat. Unfortunately, the stent doesn't close completely and may cause gastric reflux and other problems.
Solution: An esophageal stent containing a magnetically
operated valve. When you're going to eat, you wear a magnetic necklace that makes the valve open. When you're done you take the necklace off and the valve closes.
I'm kinda surprised this sort of thing doesn't exist.
[a1, Jan 24 2023]
||Maybe you can get a grant to build one. [+]
||Related but not exactly the same thing - (link) - that kind of device wouldn't be used for post-op recovery, but may replace some of the surgeries that end up requiring a stent afterwards.