| 摘要 |
A medical instrument which allows ligation in a living body to be efficiently carried out in safety by only one operator, or one operator and an assistant is provided. The medical instrument comprises a puncture needle for surgical suture insertion (20); a puncture needle for surgical suture gripping (30); a stylet (40) which is slidably inserted into the inside of the puncture needle for surgical suture gripping (30); and a fixing member (50) to which the puncture needle for surgical suture insertion (20) and the puncture needle for surgical suture gripping (30) are fixed, and when an annular member (42) which is formed at the distal end of the stylet (40) is projected from the distal end of the puncture needle for surgical suture gripping (30), the annular member (42) is extended such that the central axis of the puncture needle for surgical suture insertion (20) or its extension line penetrates through the inside of the annular member (42), with a feeding-out mechanism (60) which sequentially feeds out a surgical suture (S) toward the distal end thereof being provided on the proximal end side of the puncture needle for surgical suture insertion (20), and a projection mechanism (70) which causes the annular member (42) accommodated in the inside of the puncture needle for surgical suture gripping (30) to be projected from the distal end of the puncture needle for surgical suture gripping (30) being provided on the proximal end side of the puncture needle for surgical suture gripping (30).
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