Microinvasive surgery device

A microinvasive surgery device comprising:

• a body element;
• a tube component having a proximal portion and a distal portion, wherein the proximal portion of the tube component is connected to the body element;
• a plurality of tools each having an operative portion to contact a target, and a proximal portion;
• a magazine having a plurality of chambers each configured to receive one of the plurality of tools;
• a tool interchange mechanism configured to activate one of the plurality of tools by advancing the one of the plurality of tools from its chamber of the magazine through the tube component to the distal portion of the tube component and mounting the advanced tool to the distal portion of the tube component, and to deactivate the one of the plurality of tools by demounting the tool from the distal portion of the tube component and retracting the demounted one of the tools from the distal portion of the tube component through the tube component into its chamber of the magazine, wherein the tool interchange mechanism has a selection structure to select one of the plurality of tools in the magazine to be activated;
• and
• a power supply arrangement configured to provide electricity to the proximal portion of one of the tools, when being mounted to the distal portion of the tube component,
• wherein each of the plurality of tools is configured either to transmit electricity through the proximal portion to the operative portion or to electrically isolate the proximal portion of one of the tools so that no electrical transmission to the operative portion is possible, when being mounted to the distal portion of the tube component.