Patent ID: 6547101
Filing Date: 2003-04-15
Classification: A61M

Abstract:
A multi-chamber ampoule for dispensing a mixture comprising several substances, including:a container (10; 110; 210) having a rear end and a frontal end; at least two substance chambers (12, 14; 112, 114; 212, 214) formed through said container (10; 110; 120), each of said at least two substance chambers (12, 14; 112, 114; 212, 214) being positioned parallel to one another and extending in an axial direction of the container (10; 110; 210) from said rear end to said frontal end of the container (10; 110; 210); at least two pistons (22, 24; 122, 124), each of said pistons slidingly inserted into one of said substance chambers (12, 14; 112, 114; 212, 214) in the axial direction through said container rear end and sealingly engaging an inner wall of the substance chamber (12, 14; 112, 114; 212, 214) receiving the piston (22, 24; 122, 124); sealing means (40; 140; 240) sealing said substance chambers (12, 14; 112, 114; 212, 214) at said frontal end of said container (10; 110; 210); and a housing (30; 130; 230) having a front section (32; 132) and a rear section (36; 136) adjacent to the front section (32; 132), said front section (32; 132) defining a discharge channel (34; 134), and said rear section (36; 136) defining an inner cavity (38; 138) in fluid communication with said discharge channel (34; 134), said inner cavity (38; 138) receiving said frontal end of said container (10; 110; 210) and having inner walls sealingly engaging said container (10; 110; 210) to define a mixing chamber (33; 133) within said inner cavity (38; 138) and in fluid communication with the discharge channel (34; 134), wherein, in a ready-to-use state of the multi-chamber ampoule, a substance (52, 54) can be contained within each substance chamber (12, 14; 112, 114; 212, 214) closed by the sealing means (40; 140; 240) and the pistons (22, 24; 122, 124), and upon breaching said sealing means (40; 140; 240), the substances exit said substance chambers (12, 14; 112, 114; 212, 214) directly into said mixing chamber (33; 133).