To investigate the effect of intensive therapy of continuous subcutaneous insulin infusion (CSII) on Type 2 Diabetes Mellitus patients with Secondary Sulfonylurea Failure.

• 目的观察胰岛素泵(胰岛素皮下连续脉冲式输注,CSII)对磺脲类药物继发性失效的2型糖尿病患者强化治疗的效果。