Thoughts and experiences with rod shaped magnet implants
Hey everyone - there was a fairly detailed discussion on cylrindrical/rod shaped magnets vs. disc magnets on the group-buy thread a few months ago, but no follow-ups so I was wondering how they went.
My friend and I are getting implants put in our ring fingers at a place in London, and we're trying to decide which magnets to use. They already have Parylene-coated N48 rods from VP Scientific - both the 782NC-2-6 (6.44mm long, 2.15mm diameter) and the 782NC-3-6 (6.45mm long, 3.19mm diameter) - the details are here. It seems like a lot of people have used the significantly smaller (and flat disc shaped) 782N-3 (0.7mm long, 3mm diameter) and others have used roughly cubic cylinders. If we wanted discs we would have to order them ourselves (any leftovers from group-buys anyone?)
Generally, what are people's thoughts on rod-shaped magnets? Here are the issues we're considering:
- Physical ramifications: A 2 or 3mm diameter rod sitting along the pad (or do people prefer/suggest placing them a little to the side?) of the finger might be less amenable to pressure than a flat disc. I climb and cave often enough that this might be an issue - I'm not sure to what extent I can avoid putting a lot of weight on my (non-dominant hand) ring finger. On the other hand, people have noted that a 6mm-long rod is less likely to flip around (but if it did, it wouldn't be fun!)
- Strength/sensitivity: @cerasi helpfully put up a graph showing that the strength/mass ratio of a rod like these would be much less than a smaller magnet. That being said, these magnets are of such larger mass that I imagine the overall strength would be a lot higher - I've played with them and they're pretty damn strong. (ThomasEgi also mentioned that the higher angular force distributed over a larger area complicates it even more.
- Any thoughts from folks in the cylindrical magnet group-buy? I know @Shishou has one in one hand, and a Haworth implant in the other - I wonder how the rod compares to the other.
- Also, any reason one should be wary of getting on a plane a few days after having one put in?
That's a ton of questions, but we'd really appreciate any thoughts about any of them.
Also! Is anyone around in London with a quality video camera or DSLR who wants to tag along to record the procedure? We'd like to document this very well, so we're looking for someone.