| 摘要 |
A surgical instrument comprising a handle having an elongate tubular member extending distally from the handle, the elongate tubular member having a proximal portion, a distal portion and an articulation section positioned between the distal and proximal portions. The articulation section allows the distal portion to move relative to the proximal portion. A drive force mechanism including a drive element positioned in the proximal portion, a transfer bar positioned in the distal portion and a transfer device positioned in the articulation section, the transfer device receiving a driving force from the drive element and reorienting the driving force around the articulation section and toward the transfer bar. The transfer device is rotatably mounted in the articulation section. The drive element is a gear rotatably mounted at a point of articulation. |
