A medical assist device for a patient has a rotatable platform with a seat adjacent the platform and a lift mechanism for moving the seat from a lowered position for supporting a patient to a raised position and likewise able to move said seat from a raised position for supporting a patient to a lowered position. The rotatable platform can be rotated only if the seat is in the lowered position and the lift mechanism for raising the seat can be actuated only if the rotatable platform is in a predetermined position at which an open space between support bars is facing the seat.
