Multi-chambered ampoule for dispensing a mixture comprising several substances

A multi-chamber ampoule for dispensing a mixture having one or more substances comprising:

• a container (310) having a rear end and a frontal end;
• at least two substance chambers (312, 314) formed through said container (310), said substance chambers (312, 314) being positioned parallel to one another and extending in an axial direction of the container (310) from said rear end to said frontal end of the container, said substance chambers (312, 314) being closed at said rear end by a bottom (316);
• a piston (322, 323, 324, 325) slidingly and sealingly inserted in an axial direction in each of said substance chambers (312, 314), each of said pistons (32, 323, 324, 325 having a through channel (327, 329) formed therethrough in the axial direction, and said pistons (322, 323, 324, 325) are fixed to one another forming a piston unit (320);
• a housing (330) having a front section (332) and a rear section (336) adjacent to the front section, said front section defining a discharge tunnel (334), and said rear section having an inner cavity (338) provided therein in fluid communication with said discharge tunnel (334), said inner cavity receiving at least a portion of said piston unit (320) such that the piston unit (320) defines and tightly seals a mixing space (333) inside the housing (330);
• and
• sealing means closing said through channels (327, 329) opening into said mixing space, wherein, in the ready-to-use state of the multi-chamber ampoule, one end of the chambers (312, 314) is closed by the piston unit (320), and the through channels (327, 392) of the pistons (322, 323, 324, 325) have one end open to the respective chamber (312, 314) and an opposing end closed by said sealing means, and upon breaching said sealing means, substances disposed in spaces defined by said chambers (312, 314) and through channels (327, 329) exit directly into said mixing space (333).

A multi-chamber ampoule for dispensing a mixture comprising several substances, including:

• a container (10) having a rear end and a frontal end;
• at least two substance chambers (12, 14) formed through said container (10), each of said substance chambers (12, 14) being positioned parallel to one another and extending in an axial direction of the container (10) from said rear end to said frontal end of the container,
• at least two pistons (22, 24), each of said pistons slidingly and sealingly inserted into one of said substance chambers (12, 14) in the axial direction;
• sealing means (40) sealing said substance chambers (12, 14) at said frontal end of said container (10);
• and
• a housing (30) having a front section (32) and a rear section adjacent said front section, said front section (32) defining a discharge tunnel (34), and said rear section defining an inner cavity (38) in fluid communication with said discharge tunnel, said inner cavity (38) receiving said frontal end of said container (10) and having inner walls sealingly engaging said container (10) to define a mixing chamber (33) within said inner cavity (38), wherein, in a ready-to-use state of the multi-chamber ampoule, a substance (52, 54) can be contained in each substance chamber closed by the sealing means (40) and the pistons (22, 24), and upon breaching said sealing means (40), said substances exit said substance chambers (12, 14) directly into said mixing chamber (38), said housing including an engaging surface (31) for manually acting thereupon in order to slidingly move together said pistons and housing in a telescope-like manner for urging the substances out of said chambers (12, 14);
• wherein said sealing means (40) is a peelable foil sealing said substance chambers (12, 14) from said mixing chamber (38) and said peelable foil includes a pull-off section (46) which extends through a slot (35) formed through wall of said housing (30) for removing the sealing means to allow said substances to breach said sealing means (40).

A multi-chamber ampoule for dispensing a mixture comprising several substances, including:

• a container (110) having a rear end and a frontal end;
• at least two substance chambers (112, 114) formed through said container (110), each of said substance chambers (112, 114) being positioned parallel to one another and extending in an axial direction of the container (110) from said rear end to said frontal end of the container,
• at least two pistons (122, 124), each of said pistons slidingly and sealingly inserted into one of said substance chambers (112, 114) in the axial direction;
• sealing means (140) sealing said substance chambers (112, 114) at said frontal end of said container (110);
• and
• a housing (130) having a front section (132) and a rear section adjacent said front section, said front section (132) defining a discharge tunnel (134), and said rear section defining an inner cavity (138) in fluid communication with said discharge tunnel, said inner cavity (138) receiving said frontal end of said container (110) and having inner walls sealingly engaging said container (110) to define a mixing chamber (133) within said inner cavity (138), wherein, in a ready-to-use state of the multi-chamber ampoule, a substance can be contained in each substance chamber closed by the sealing means (140) and the pistons (122, 124), and upon breaching said sealing means (140), said substances exit said substance chambers (112, 114) directly into said mixing chamber (133), said housing including an engaging surface (131) for manually acting thereupon in order to slidingly move together said pistons and housing in a telescope-like manner for urging the substances out of said chambers (112, 114);
• wherein said sealing means (140) is a plug means that, when activating the multi-chamber ampoule, abuts a housing wall (131) whereupon it is urged into said chambers (112, 114) clearing the upper ends thereof.

A multi-chamber ampoule for dispensing a mixture comprising several substances, including:

• a container (210) having a rear end and a frontal end;
• at least two substance chambers (212, 214) formed through said container (210), each of said substance chambers being positioned parallel to one another and extending in an axial direction of the container (210) from said rear end to said frontal end of the container,
• at least two pistons, each of said pistons slidingly and sealingly inserted into one of said substance chambers (212, 214) in the axial direction;
• sealing means (240) sealing said substance chambers (212, 214) at said frontal end of said container (210);
• and
• a housing (230) having a front section and a rear section adjacent said front section, said front section defining a discharge tunnel, and said rear section defining an inner cavity in fluid communication with said discharge tunnel, said inner cavity receiving said frontal end of said container (210) and having inner walls sealingly engaging said container (210) to define a mixing chamber within said inner cavity, wherein, in a ready-to-use state of the multi-chamber ampoule, a substance can be contained in each substance chamber closed by the sealing means (240) and the pistons, and upon breaching said sealing means (240), said substances exit said substance chambers (212, 214) directly into said mixing chamber, said housing including an engaging surface for manually acting thereupon in order to slidingly move together said pistons and housing in a telescope-like manner for urging the substances out of said chambers (212, 214);
• wherein said sealing means (240) is a skin at said upper ends of the chambers (212, 214) in the non-activated state of the multi-chamber ampoule and being perforated by means of a protrusion (239) in the activated state of the multi-chamber ampoule, said protrusion being provided within the mixing chamber of said housing (230).