METHOD FOR LITHOEXTRACTION OF LARGE CHOLEDOCHOLITHIASIS BY COMBINED METHOD OF REMOTE SHOCK-WAVE LITHOTRIPSY AND ENDOSCOPIC PARTIAL PAPILLOSPHINCTEROTOMY WITH LARGE-BALLOON DILATATION Russian patent published in 2020 - IPC A61B17/94 A61B17/00 A61B17/225 A61M25/10 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to surgical hepatology. Endoscopic partial papillosphincterotomy is performed. Nasobiliary drain tube (NDT) is placed. It involves remote shock-wave lithotripsy with fragmentation of coarse stone into fragments with size of less than 15 mm. A large-ball dilatation is performed with exposure of the dilated balloon to 6 minutes. Fragments of broken stone are extracted.

EFFECT: method enables higher clinical effectiveness ensured by simulating a wide canal in the distal portion of the common bile duct and subsequent complete removal of coarse stone fragments; prevent duodeno-biliary reflux and recurrent stone formation in ductus hepaticocholedochus by performing organ-preserving partial papillosphincterotomy.

1 cl, 1 ex