Saturday, 16 November 2013

Bubbles, have I got it sussed?

The routine had become, very carefully fill up a cartridge, taking extra care to ensure that there are no bubbles in it whatsoever, then put in pump and, discover (after a day) loads of bubbles or one big bubble.  Where the hell were they coming from?  I made sure there weren’t any when I changed cartridge!

Then it struck me.  There must be a zillion teeny weeny microscopic bubbles that I can’t see, so a different approach might be needed.  Therefore I pre filled a new cartridge yesterday and left it in the fridge.  There were no bubbles in it at all.  Today I went to change cartridge and there they were.  Bubbles.  This gave me the opportunity to expel them before loading into the pump.  The insulin in the cartridge certainly looks clearer, time will tell if the bubbles have been banished.

More mucking about with used infusion sets now. Just how strong is that tube?  Very, that’s how strong.  Today I ‘tested’ one by hanging 20lbs (9 kg) from one.  

It stretched a bit, but didn’t break!  Most impressive.

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