초록 ▼

The invention relates to a microfluid storage device having at least one supply chamber (5) formed by bulging a film (7) or membrane (19), a target break point (10) for forming an opening in the supply chamber (5), and a transport path (9) leading from the supply chamber (5) to an opening (11) in th

The invention relates to a microfluid storage device having at least one supply chamber (5) formed by bulging a film (7) or membrane (19), a target break point (10) for forming an opening in the supply chamber (5), and a transport path (9) leading from the supply chamber (5) to an opening (11) in the supply chamber, for example, an interface between the storage device and a microfluid processing unit (2). According to the invention, the initially closed transport path (9) may be opened to form a transport channel (15) corresponding to the fluid stream escaping from the supply chamber (5), preferably by the escaping fluid itself, which allows the fluid to be removed from the storage device in a bubble-free manner.

대표청구항 ▼

1. Microfluidic storage device comprising: at least one supply chamber (5) for a fluid (1), the supply chamber being formed by bulging a foil (7) or diaphragm (19); an oblong transport path (9) which extends from the supply chamber (5) to an opening (11) of the storage device for transporting fluid

1. Microfluidic storage device comprising: at least one supply chamber (5) for a fluid (1), the supply chamber being formed by bulging a foil (7) or diaphragm (19); an oblong transport path (9) which extends from the supply chamber (5) to an opening (11) of the storage device for transporting fluid from the supply chamber (5) to the opening (11) of the storage device in a longitudinal direction of the transport path (9); and an intended breaking point (10) that seals and separates an inner space of the supply chamber (5) from the transport path (9) for forming a chamber opening directly at the supply chamber (5), wherein the intended breaking point (10) is adjacent to the supply chamber (5) between the supply chamber (5) and the oblong transport path (9) over the entire width of the oblong transport path (9), wherein prior to forming the opening of the supply chamber (5) the transport path (9) has an inner volume of zero, and wherein the transport path (9) is expandable in accordance with the fluid flow emerging from the chamber opening formed by the breaking point (10) and progressively forms a transport duct (15) whereby the fluid is metered without bubbles out of the opening (11) of the storage device in response to pressure applied on the supply chamber to break the intended breaking point, wherein the transport path (9) has duct walls that rest against each other without a rupturable connection between them. 2. Storage device according to claim 1, wherein the transport path (9) is unlockable by contact with the fluid (1) itself which emerges from the supply chamber (5). 3. The storage device according to claim 1, wherein the transport path (9) comprises duct walls which rest against each other or are placeable against each other, wherein at least one duct wall can be deformed by the fluid (1) during formation of the transport duct (15). 4. The storage device according to claim 3, wherein the wall is expandable by the fluid (1) for forming the transport duct (15). 5. The storage device according to claim 3, wherein the duct walls are each formed by a foil (7, 8) or by a foil (7) and a stiff plate (3). 6. The storage device according to claim 5, wherein the foils (7, 8) or the foil (7) and the plate (3) are, in an area of the transport path (9), not connected with each other or are connected less strongly with each other than in adjacent areas. 7. The storage device according to claim 6, wherein the storage device is integrated in a microfluidic processing device (2). 8. The storage device according to claim 1, wherein the transport path (9g) has several parallel sections (20, 21) that lead from a distributor chamber to several openings (11g, 11g′).