| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an injection needle for an endoscope at a low cost, with which the sufficient quantity of transfusion can be ensured, sliding resistance in a channel and in a tube can be reduced, and the thickness of the tube can be increased. <P>SOLUTION: The injection needle 1 for the endoscope comprises: a tubular part 3 which can be inserted to the channel of the endoscope and comprises a lock part 2 protruded inwards in the direction of diameter at its distal end; a hollow needle part 5 which can be moved back and forth in the tubular part 3 and comprises a large diameter part 5A having an outer diameter greater than the outer diameter of the distal end or a proximal end and smaller than the inner diameter of the tubular part 3 integrally or separately provided to its outer peripheral surface; a wire part 6 of which the distal end is connected to the proximal end side of the hollow needle part 5 and which can move back and forth in the tubular part 3; and a manipulation part capable of manipulating the wire part 6 to move back and forth in the tubular part 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
