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Originally Posted by Gary_W  I'm just wondering if part of the problem is 'how do you make a pen mechanism THAT fine?'. It could purely be an issue of mechanical engineering. Pens are made to a cost, and i wonder if the nuts and bolts side of things make it prohibitively expensive? I know that a pump will do 1/20th of a unit for bolus (and finer still for basal, I believe my Animas is capable of a delivery of 0.00125 units (minimum basal of 0.025u per hour, and it delivers that split into 20 even doses i.e. 0.00125 every 3 mins). However, that costs lots and has a precision motor / feedback from the motor as to exactly where the plunger is so it's possible. I wonder how possible it it to get accurate small doses in the confines of a pen?
Gary |
I guess the bigger issue is that they may not make an awful lot of money out of it as the market for such a device is small I would imagine, unlike a pump which is marketable to every diabetic. I definitely think it’s a combination of all of these factors, which sucks for people like me
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