A Study Evaluating the Perception of Insertion Pain With Accu-Chek FlexLink and FlexLink Plus Insulin Pump Devices Under Real Life Conditions in Diabetic Patients.

Inclusion Criteria: * Male and female subjects at least 18 years of age * Diabetes mellitus type 1 or type 2 * Continuous subcutaneous insulin therapy (CSII) for at least 3 months * Insulin pump compatible with Luer lock infusion set (Accu-Chek, Disetronic, Animas, Deltec Cozmo and Minimed 506 to 508) * Sufficient potential infusion sites suitable for the usage of a cannula length of 8 mm and a tubing length of 70 and 80 cm * Willing to measure blood glucose at least 4 times per day and 1-3 hrs after each new insertion * Willing and able to participate and comply with study procedures including the general recommendation of shifting infusion sets (at least every 3 days) Exclusion Criteria: * Significantly impaired awareness of hypoglycemia * A history of or high risk of ketoacidosis during CSII therapy * Frequent catheter abscesses in the past year, as per investigator´s discretion * Known strong plaster incompatibility and/or allergy (history of catheter use) * Unstable chronic disease other than diabetes * Chronic use of steroids in adrenal suppressive doses, other immuno-modulatory medication or chemotherapy * Acute illness or abnormality at the time of screening rendering the patient not suitable to participate in the study in the opinion of the Investigator * Chronic use of analgesics and any other condition interfering with the assessment of pain, as per investigator´s discretion * Are either pregnant or breastfeeding or are currently planning a pregnancy