A filling and sealing device includes an upper part forming a bell and a lower part forming a bowl, receiving a container to be sealed with a film in the chamber defined by the two parts. The upper part has a wall, on the side supplying the sealing film, inserting and filling elements emerging inside the chamber between the sealing film and the lower edge of the wall for inserting products into the chamber and for filling the container therein. Preferably, the upper part also includes above the inserting and filling elements, a slot for passing through the sealing film, closing and locking elements with controlled actuation for closing the slot and lock the film relative to the upper part, and elements for introducing and/or removing fluid (gas).
