Abstract: The present invention falls within the technical field of Food Packaging and was developed specifically to meet the needs of the Enteral Nutrition market. This innovation proposes a unique packaging solution, compatible with both Closed Enteral Systems and Open Enteral Systems. It is defined as an integrated opening device in the aseptic carton packaging, which allows direct connection to the enteral feeding set without the need for external devices (such as adapters and connectors). Thus, the invention transforms the conventional use of aseptic carton packaging—previously limited to open enteral systems—into a versatile, multi-use solution. Featuring characteristics equivalent to those of specialized packages for closed systems available in the market, this device, when incorporated into aseptic carton packaging, enables the contained product to be administered in both closed and open enteral systems.