Seegen finished the frist animal clinical trial use of single-use flexible choledochoscope successfully in Dec.2018. This the the first animal clinical test of Seegen disposable scopes since 2016. During the testing, the instrument can pass the 1.2mm working channel smoothly under very impressive image guide. The introduction of choledochoscope to the bile duct is fluent with easy angluation control. The test result is very positive and we will improve the scope from all collected clinical feedback as well.