US Patent 10357246 Rotary powered surgical instrument with manually actuatable bailout system

A motor-driven surgical instrument is disclosed. The surgical instrument comprises a motor that is supported in a housing and includes at least one rotary drive system that is configured for selective operable engagement and disengagement with the motor assembly. A bailout drive train is supported by the housing assembly and is configured for selective operable engagement and disengagement with the at least one rotary drive system. A bailout handle assembly is selectively movable between a stored position within the housing assembly and an actuation position such that, when the bailout handle assembly is in the stored position, the at least one rotary drive system is retained in operable engagement with the motor assembly and when the bailout handle assembly is in the actuation position, the bailout drive train is in operable engagement with the at least one rotary drive system.