| 摘要 |
PROBLEM TO BE SOLVED: To provide a delivery device for delivering a stent device which is expandable to an arrangement constitution which is expanded in the radial direction from a delivery constitution which is reduced in the radial direction.SOLUTION: A holding sheath 4 is folded on the holding sheath itself while covering a stent device 3 in order to maintain the stent device in a delivery constitution, and a stretch line 13 is arranged for retracting the holding sheath in such a manner that the folding brings about a radial inside sheath 7, a radial outside sheath 8 and a bent portion 9. The stretch line moves the outside sheath of the holding sheath on the inside sheath for expanding the stent device to the arrangement constitution and releasing it. Simultaneously, the bent portion can be moved in the axial direction with respect to the device, and the stretch line extends in the axial direction along the device and is joined to the holding sheath at a point at which the stretch line substantially exceeds the end of the holding sheath in the axial direction by a per-retreating constitution of the holding sheath. The holding sheath is formed of cold-drawn plastic along a moving passage of the bent portion when the holding sheath is retracted from an upper part of the device. |
