Patent ID: 6764442
Filing Date: 2004-07-20
Classification: A61B

Abstract:
A liquid and gas supply apparatus for supplying liquid and gas to a liquid supplying tube and a gas supplying tube, provided in an endoscope, said liquid and gas supply apparatus comprising:a pump that pumps the gas; a tank that stores the liquid; a first coupling tube that spatially connects said pump with said gas supplying tube; a divergent tube that diverges from said first coupling tube and extends toward an inside of said tank; a balloon that is spatially connected to said divergent tube and is expandable and shrinkable in said tank, the liquid being stored outside of said balloon; a second coupling tube that spatially connects the inside of said tank with said liquid supplying tube such that the liquid in said tank flows in said second coupling tube; and a gas direction controller that selectively directs the gas discharged from said pump to one of said gas supplying tube and said divergent tube, wherein said tank includes a sealing member that hermetically seals said tank except for said second coupling tube and said divergent tube.