Patent ID: 8147454

Claim:
A gastrostomy tube extension device used for inserting or taking out a gastrostomy tube into/from a hole in a patient, the gastrostomy tube comprising a stomach interior fixing member to be installed inside the stomach wall at a hole formed between the outer surface of a patient's skin and the inner surface of the stomach wall, and a tube member connected to the stomach interior fixing member and extended through the hole to the outside of the patient's body, the gastrostomy tube extension device comprising: an extender comprising a rod-shaped member which can be inserted into the tube member and can elongate and narrow the stomach interior fixing member by directly pushing the distal end of the stomach interior fixing member toward the distal side of the device with the distal end of rod-shaped member; a fixing member which is capable of moving along the longitudinal direction of the extender while being fixed to the outside end of the tube member and being inside the tube member, where the outside end of the tube member is the end located out of the body; an engaging portion which is engageable with the fixing member; an engaging member having the engaging portion that is engageable with the fixing member and a holding portion for holding by hand for operation and elongating the stomach interior fixing member when the holding portion is pulled in the direction of the outside end of the tube member while the extender is inserted in the tube member and the engaging portion is engaged with the fixing member fixed to the outside end of the tube member; and wherein the fixing member is hollow cylindrical, surrounding the outer peripheral surface of the extender and capable of moving along the longitudinal direction of the extender, and a cylindrical member is formed with a fixed portion to be fixed at the end of the tube member which is located out of the body and an engaged portion to be engaged with the engaging portion of the engaging member.