FIELD: medical equipment.
SUBSTANCE: invention relates to medical equipment. Surgical instrument comprises an end effector, a first drive, a second drive and a rotatable shaft. First drive is configured to perform a first end effector function. Second drive is configured to perform a second end effector function. Rotatable shaft can comprise a first thread and a second thread. First drive is engageable with the first thread to perform the first end effector function. Second drive is engageable with the second thread to perform the second end effector function.
EFFECT: first thread is at least partially co-extensive with or overlaps the second thread.
20 cl, 121 dwg
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