| 摘要 |
ADAPTOR FOR SURGICAL INSTRUMENT FOR CONVERTING ROTARY INPUT TO LINEAR OUTPUT An adaptor (30) for a powered surgical instrument (10) includes a casing (31), a cam drum (62), a first linear driver (65a), and a second linear driver (65b). The cam drum (62) defines and is translatable along a longitudinal axis of the adaptor (30) between a retracted position and an advanced position. The cam drum (62) is being supported for rotation about the longitudinal axis. The cam drum (62) defines first and second radial cam grooves (63, 64) about an outer surface thereof. The first cam groove (63) defines a first profile and the second cam groove (64) defines a second profile. The first linear driver (65a) includes a first cam follower (66) disposed in the first cam groove (63) and the second linear driver (65b) includes a second cam follower (66) disposed in the second cam groove (64). The first and second linear drivers (65a, 65b) are supported for movement between advanced and retracted positions in response to rotation of the cam drum (62). |
