Page 0027


continued over

Above: Current insulin pump

therapy options. Left: Patch pumps

(or micro pumps) are tubeless.

Right: Tubed pumps, also known

as tethered or 'durable' pumps.

Below: An Accu-Chek Solo worn

on-the body with PDM in hand.

60%, irrespective of their age (in the UK

there are fewer criteria for children and

young to access pump therapy).

Roche's newest pump is a patch

pump (or micro pump) called the AccuChek Solo. It is tubeless and has a

handheld personal diabetes manager

(PDM) with it. This controls basal rates

and bolus doses.

So how does the Solo address patient

satisfaction issues? "Obviously the great

upside to tubeless pumps is that you

have no more 'door handle moments',"

says Oliver. "For those who fear needles,

there is no needle visible when putting

this particular device onto the body. Also,

with no tubing there is a greatly reduced

risk of occlusions [blockages]. This pump

model is smaller and lighter than others

on the market at present and the fact

that you control it with a handheld means

you have a discreet capability to remotely

check on and deliver insulin."

Patch test

However, as with all technology, there are

limitations. For example, parts of these

devices may be thrown away after only

one use and are generally not recyclable,

which is not great for the planet and adds

to the running costs of the pump. Oliver

adds, "On a very personal level, for some

people with diabetes using these onbody devices we have seen problems


the pump sites themselves - underneath

where the pump, a sensor, or an infusion

set is attached. With a patch pump you

can't see what's underneath, yet there

may be problems with skin reactions

[contact dermatitis] which can be a

challenge for certain individuals."

Continuous use of pumps and/or

sensors is associated in some people with

skin irritation at the point of contact. As

with many things, it's some of the people

all of the time, and all of the people some

of the time with various factors involved.

For some users, they specifically react to

certain 'ingredients' used in the adhesive

which attaches the device to the body.

The Solo pump uses a common adhesive

ingredient, Isobornyl acrylate (IBOA) but

in order to address the common reaction

of contact dermatitis, this also been

researched - and proven - that this does

not leach** from the Solo micropump and

therefore does not cause skin irritation.


The Accu-Chek Solo system is made up of

several components. There is an inserter,

which puts the cannula in, then there's a




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