Abstract: The present invention relates to an obstetrical vacuum cup that includes a base and a side wall defining a hollow interior cavity and having a distal edge which defines a first contact surface. The hollow interior cavity has at least one projection for providing at least one second contact surface when vacuum is applied. By this design the forces resulting from the application of vacuum to the cup and manipulation of the extractor will be transmitted to the fetus through both the first and the second contact surfaces, distributing these forces over a greater area of the fetal head. Accordingly, the potential for injury to the fetus caused by a concentration of forces is reduced.

Abstract: The present invention relates in a first aspect to a packing, preferably being a disposable packing, in which backing ingredients can be contained, bread or cake dough can be shaken or stirred, and bread or cake dough can be baked. In a second aspect the present invention relates to a method of producing bread or cake dough. An aim of the present invention is to render baking easy and comfortable, without the need for further aids.