Pump name: 640g and 670g
Sensor augmented: Yes, with Medtronic
Colour display: Yes
Careline: 24-hour technical helpline.
Medtronic's MiniMed 640g insulin pump
has a colour screen which shows the
status of how much insulin is left in the
reservoir, how much battery power, and
time since the last infusion set change.
The system comes with SmartGuard
technology that works in combination
with Medtronic CGM Enlite sensors.
SmartGuard is a closed-loop system
whereby insulin delivery is automatically
suspended by the pump if the CGM
measures a low glucose reading. Based
on settings inputted specifically for the
individual concerned, the pump stops
insulin delivery when readings are low and
by doing so can avert a hypo.
Trials have proven that this system
has been helping diabetics to make it
through the night without having a hypo.
The model is waterproof and comes with
a Bayer Contour Next Link II blood test
meter that also doubles are a remote
bolus controller (so it's possible to
administer a bolus using wi-fi from the
meter to the pump).
The Minimed 640g system, also
referred to as a Sensor Augmented
Pump (SAP), is one step closer to the
ideal of a closed loop insulin delivery
system (or artificial pancreas). Speaking
of which, very newly available in the UK
is Medtronic's MiniMed 670g, which is
a closed loop insulin delivery system
featuring SmartGuard HCL (hybrid closed
loop) algorithm. There will be a full report
on the 670g in the next issue of the
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But business as usual is best for
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