Evaluation of the injection force dynamics of a modified prefilled insulin pen
Objective: A modified version of the widely used pen FlexPen® (FP), called Next Generation FlexPen® (NGFP), has been designed to reduce the injection force with this pen. In this study, the injection force of NGFP was compared with another insulin pen, SoloStar® (SS). Research design/methods: The injection force of 24 pens of each type: NGFP fitted with a NovoFine® 32G Tip ETW 6 mm needle; SS fitt