A method of producing intact islets of Langerhans in an insulin producing condition uses a mixture of Hank's solution and 10% by volume fetal calf serum to ductally distend the human pancreas. The exocrine tissue of the pancreas is digested at about 37.degree. C. by an enzyme preparation of collagenase,...http://www.google.es/patents/US5322790?utm_source=gb-gplus-sharePatente US5322790 - Islet isolation process