Abstract: Multi-functional laparoscopic surgical apparatuses (devices, systems) and applications (methods) for performing interventions in a subject's body. Exemplary embodiments are suitable for performing multiple different types of minimally invasive surgical procedures, such as tissue grasping, cutting, dissecting, fastening, and ligating, for example, via the same device. Exemplary apparatuses includes a tissue affecting device head that is reversibly convertible (transformable) between different tissue affecting configuations and modes (states) of operation, involving, for example, tissue dissecting, scissoring, and tissue grasping. Exemplary apparatuses and methods are implemented using a single, optionally, robotic, control unit.