MANUAL DRIVE FUNCTIONS FOR SURGICAL TOOL

A surgical tool includes a drive housing having opposing first and second ends and a drive input rotatably mounted to the drive housing at the first end, a carriage mounted entirely within the drive housing and movable between the first and second ends via actuation of the drive input, an instrument driver matable with the drive housing at the first end, a drive output matable with the drive input such that rotation of the drive output rotates the drive input and translates the carriage within the drive housing, a shaft coupled to and extending distally from the carriage and penetrating the first end and the instrument driver, and a fin connected to the carriage and accessible by a user at an exterior of the drive housing, the fin being manually translatable along the exterior of the drive housing between the first and second ends to thereby translate the carriage.