"ER doctor, students invent device for common hospital complaint: rings stuck on fingers"

This will be quite useful:

For Dr. Kevin Spencer, a solution to stuck rings is long overdue. He said he sees patients with stuck rings in the ER at least once a week.

(The main impetus for removing a stuck ring is doctors want it off before surgery.)

In the meantime, there are subsitute procedures: see here, here, and here.

Link via Marginal Revolution.