Abstract: A filter unit for blood and blood derivatives comprises a body defined by two injection-moulded half-shells of thermoplastic polymer material, there being present between said half-shells a cavity containing a filtering element having two opposing flat faces, an inlet opening and an outlet opening made on the opposing outer surfaces of said body communicating with said cavity. Each of said half-shells comprises a projecting perimetral flange, the flanges of the overlapping half-shells being welded together to form a flange of the body of the filter unit and connect the two half-shells together, the filtering element being wholly contained within the cavity of such body and pressed by shelves projecting into such cavity from each half-shell in the vicinity of its perimetral border and on the two opposing faces, said shelves retaining said filtering element in a stable position within cavity, said thermoplastic polymer material being yielding and semi-rigid.

Abstract: A filter unit for blood and blood derivatives comprises a body defined by two injection-moulded half-shells of thermoplastic polymer material, there being present between said half-shells a cavity containing a filtering element having two opposing flat faces, an inlet opening and an outlet opening made on the opposing outer surfaces of said body communicating with said cavity. Each of said half-shells comprises a projecting perimetral flange, the flanges of the overlapping half-shells being welded together to form a flange of the body of the filter unit and connect the two half-shells together, the filtering element being wholly contained within the cavity of such body and pressed by shelves projecting into such cavity from each half-shell in the vicinity of its perimetral border and on the two opposing faces, said shelves retaining said filtering element in a stable position within cavity, said thermoplastic polymer material being yielding and semi-rigid.

Abstract: A method for manufacturing filtration units (2), for example for biomedical use and the like, constituted by a box-like enclosure (3) and a filtration element (4) which can be mutually assembled, comprising a step of injecting a retention element (6) in the fluid state in a seat (5), which is associated with the box-like enclosure, for accommodating the filtration element (4); a step of embedding an end of the filtration element (4) in a portion of the retention element (6) kept in the fluid state; and a step of consolidation of the retention element (6) in order to lock the filtration element (4) in the seat (5), the retention element (6) being a thermoplastic polymeric material which can be applied by hot injection in a preset closed volume of the seat (5).

Abstract: An apparatus (1) for molding and assembling a chamber unit (D) for biomedical use comprising two plates (18, 22), which are mutually parallel and opposite and are allowed to move toward and away from each other, for supporting the mold parts of a first forming mold (3) and of a second forming mold (4) for the injection molding of thermoplastic material respectively of two parts (A, B) of a chamber unit (D) that are adapted to be mutually assembled, and the mold parts of a mold (5) for the assembly, by overmolding additional thermoplastic material, of the two parts (A, B), an element supporting device (6) that is rendered movable between the plates (18, 22) by actuation means (M) and is adapted to receive the parts (A, B) from the first (3) and second (4) forming molds and to transfer them to the assembly mold (5); the element supporting device (6) is directly associated, at least slidingly, with at least one of the supporting plates (18, 22).

Abstract: A method for manufacturing filtration units (2), for example for biomedical use and the like, constituted by a box-like enclosure (3) and a filtration element (4) which can be mutually assembled, comprising a step of injecting a retention element (6) in the fluid state in a seat (5), which is associated with the box-like enclosure, for accommodating the filtration element (4); a step of embedding an end of the filtration element (4) in a portion of the retention element (6) kept in the fluid state; and a step of consolidation of the retention element (6) in order to lock the filtration element (4) in the seat (5), the retention element (6) being a thermoplastic polymeric material which can be applied by hot injection in a preset closed volume of the seat (5).