Many people need an oxygen air supply to breathe, which involves long cords of oxygen tubing hooked up between an oxygen supply unit and the user's face and nose. If the user is moving around, the tubes can easily get caught on something, yielding to painful and dangerous yanks.
This instructable shows an easy to build, inexpensive magnetic quick release that attaches to standard size medical air tubing. When subjected to a hard pull, the disconnect breaks at the magnet connection. It can be rejoined easily just by putting the two magnet ends near each other. The inspiration is the Apple magnetic power cords.
Please note, by its nature this device is not 100% air-tight (though it should be reasonably close with proper assembly), nor medically sterile, nor has it been cleared by the FDA. No warranty is given or implied. This has however been successfully used by people with oxygen air tubes.
Public OnShape CAD workspace - you are welcome to remix, please send us a link to your new version!
YouTube video of assembly - this video demos tubing without the connectors, we recommend using tubing with connectors but otherwise the steps are identical.
Using a clean pair of cutters, snip off one end of the medical tubing. You should have the connector plus a few inches of tube, the exact length is up to you.
Repeat for the other end of the tubing so you have two pieces.