Patent ID: 8759099

Claim:
A method for isolating islets, comprising: a digestion step of breaking down an excised pancreas to provide pancreatic tissue, and a purification step of immersing the pancreatic tissue in a purification solution to provide islets, wherein the digestion step comprises: an enzyme injection step of injecting an enzyme solution containing a digestive enzyme into the inside of the pancreas; a digestion initiation step of activating the digestive enzyme; a digestion termination step of inactivating the digestive enzyme; and a collection step of collecting the broken down pancreatic tissue, wherein a neutrophil elastase inhibitor, provided that a case of it being a trypsin inhibitor is excluded, is added before the digestion initiation step so that the neutrophil elastase inhibitor is present in the inside of the pancreas at the time point of starting the digestion initiation step.