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Because people with diabetes sometimes suffer from visual impairment as well as reduced manual dexterity, Japanese researchers assessed the reliability of dose selection and setting of five insulin devices by patients using auditory and sensory confirmation.
A total of 48 patients (30 men, 18 women) were randomized to test the following pen devices:
The researchers found that “Significantly more patients detected an auditory confirmation of dose setting when using the NovoPen 3 compared with the Humalog Pen, HumaPen Ergo and InnoLet.”
They add that the audible click for the FlexPen was also heard by more patients than for the Humalog Pen and HumaPen Ergo.
All patients found that the FlexPen provided the most physical sensory confirmation. Patients reported having the most confidence about setting the correct dose with the NovoPen3 and the FlexPen. These two pens were also found to be the most reliable for dose setting.
Sound recordings showed that the NovoPen 3 produced the loudest clicks when setting a dose.
“The clarity of the click when setting a dose on an insulin delivery device can affect the patient’s confidence in selecting the correct dose,” the researchers say.
—Diabetes Technology and Therapeutics, August 2005
Diabetes Health is the essential resource for people living with diabetes- both newly diagnosed and experienced as well as the professionals who care for them. We provide balanced expert news and information on living healthfully with diabetes. Each issue includes cutting-edge editorial coverage of new products, research, treatment options, and meaningful lifestyle issues.