Method of sealing bile duct during cholangiography

摘要: A self-sealing catheter apparatus and method are disclosed which broadly useful in medical surgery particularly to perform cholangiography or connection with perfusion of the coronary arteries during open heart surgery. The provides means for sealing a duct introducing dye into once has been placed inside duct. An inflatable balloon sleeve adjacent reservoir mounted near distal end catheter. is inserted until contacts outer wall thus located Then, depressed forcing fluid contained therein inflate sleeve. inflated not only seals against passage fluids therethrough, but also holds place then introduced via lumen.