| 摘要 |
PROBLEM TO BE SOLVED: To operate the connected portion of a link plate with driving levers and open and close reliably forceps cups by forming a projection piece to pinch a part of the link plate in a space with the driving levers integrally with the forceps cups and the driving levers in a position away from a shaft when a pair of forceps cups opens and closes. SOLUTION: By advancing and withdrawing an operating wire 2, a wire connecting link 12 is advanced and withdrawn, driving levers 8 are rotated around a spindle 5 by a link plate 13, and a pair of forceps cups 7 is opened and closed like a bill. In a biopsy forceps like that, a projection piece 10 to pinch a part of the link plates 13 in a space with the driving levers 8 is formed integrally with the forceps cups 7 and the driving levers 8 in a position away from the part where the driving levers 8 and the link plate 13 are connected by a shaft 18, whereby a part of the link plate 13 can be kept in a state of being pinched between the driving lever 8 and the projection piece 10, and smooth operation in the connected portion of the link plate 13 with the driving levers 8 is guaranteed and the forceps cups 7 can be opened and closed reliably. |
