| 摘要 |
PROBLEM TO BE SOLVED: To provide a catheter device capable of properly preventing an air leakage from a balloon at the time of drawing out an endoscope, and further preventing an injected drug from flowing out to the small intestine without any requirement of mounting and demounting a clip or the like. SOLUTION: This catheter device has a catheter tube 30 having a liquid flow passage 40 and a gas flow passage 42, as well as a vent hole 46 formed on the side thereof near the base end so as to be communicated to the gas flow passage 42, a balloon laid on the end of the catheter tube 30 and connected to the gas flow passage 42, a liquid feed and discharge device connection member 34 laid on the base end of the catheter tube 60 and communicated to the liquid flow passage 40, and a gas feed and discharge device connection member 36 laid near the base end of" the catheter tube 30 and communicated to the vent hole 46. Also, the connection members 34 and 36 are provided in such a state as detachable from the catheter tube 30, and a closing member 38 is provided to close the vent hole 46 at the time of detaching the connection member 36. |
