| 摘要 |
A clipping device comprises: a clip loaded into a forward end portion of a sheath; a manipulating wire connected to a rear end of the clip; and a retention ring fitted onto the clip and fitted into the sheath so as to be capable of advancing and retreating. The retention ring includes: a resin retaining portion which has two or more skirt portions which, when being situated inside the sheath, are closed inwardly by being pressed by an inner wall of the sheath and which, when being situated outside of a forward end of the sheath, are opened in a width larger than an inner diameter of the sheath to prevent retreat into the sheath, and a metal clamping portion arranged on a forward end side of the retaining portion and, when being situated on a forward end side of the clip, abutting the clip to clamp it.
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