Abstract: A blowing lance nozzle (1) having: a central tube (2) supplying stirring gas, an inner tube (5) for intake of a cooling liquid, an outer tube (10) for evacuation of the cooling liquid, a heat exchanging space (13), and an outlet conduit (15) for the stirring gas exiting from each orifice (4) in the front wall (3). The front wall (12) has a central recess (16) which is oriented towards the central orifice (8) and has a recess height/recess base ratio not less than 0.35. The heat exchanging space has a section for allowing passage of the cooling liquid through the space at a speed which is substantially constant, so as to obtain a cooling liquid passage speed, through the space, which is more or less constant.

Abstract: The invention concerns a blowing lance nozzle (1) comprising: a central tube (2) supplying stirring gas, an inner tube (5) for intake of a cooling liquid, an outer tube (10) for evacuation of the cooling liquid, a heat exchanging space (13), and outlet conduit (15) for the stirring gas exiting from each orifice (4) in the front wall (3), the front wall (12) having a central recess (16) which is oriented towards the central orifice (8) and has a recess height/recess base ratio not less than 0.35, said heat exchanging space having a section for allowing through the cooling liquid through said space which is substantially constant, so as to obtain a cooling liquid passage speed through said space which is more or less constant.

Abstract: Packaging and handling device for an item that is to remain protected from any direct manual contact, as well as a set of such a device and such an item.The device includes a forceps and a box cooperating in such a manner that the jaws of the forceps remain closed on the item to prevent it from any motion when the forceps are engaged in the box; this box includes a casing that is to receive the jaws of the forceps and the item and a lid towards which the forceps presents the handling means; thus, after opening of the box, the item can be accurately handled without having to take it directly in hand.It can notably be applied to the packaging and handling of implantable prostheses.