Device for the stepwise transport of liquid utilizing capillary forces
First Claim
1. A device for the stepwise transport of liquid, particularly of sample liquid to be analyzed, through several reaction chambers located in series in terms of flow while utilizing capillary forces, comprisinga channel (14) through which liquid is transportable on the basis of capillary forces, andat least two closed vent holes (38,40,42) which are in fluid communication via respective fluid connections (30,32,34) with the channel (14) at connection sites (22,24,26) spaced from each other along the channel (14),the connection sites (22,24,26) dividing the channel (14) into several channel sections (44,46,48),the vent holes (38,40,42) allocated thereto being able to be opened separately, thereby allowing stepwise fluid flow into said respective channel sections (44,46,48), andat least one chamber (50,52,54) being arranged in the channel sections (44,46,48) upstream of each connection site (22,24,26) in flow direction.
2 Assignments
0 Petitions
Accused Products
Abstract
The device (10) for the stepwise transport of liquid, particularly of sample liquid to be analyzed, through several reaction chambers located in series in terms of flow while utilizing capillary forces comprises at least one channel (14) through which liquid is transportable on the basis of capillary forces. Further, the device (10) comprises at least two closed vent holes (38,40,42) which are in fluid communication with the channel (14) at connection sites (22,24,26) spaced from each other along the channel (14). The connection sites (22,24,26) divide the channel (14) into several channel sections (44,46,48). The fluid connections between a respective channel section (44,46,48) and the vent holes (38,40,42) allocated thereto can be opened separately.
-
Citations
12 Claims
-
1. A device for the stepwise transport of liquid, particularly of sample liquid to be analyzed, through several reaction chambers located in series in terms of flow while utilizing capillary forces, comprising
a channel (14) through which liquid is transportable on the basis of capillary forces, and at least two closed vent holes (38,40,42) which are in fluid communication via respective fluid connections (30,32,34) with the channel (14) at connection sites (22,24,26) spaced from each other along the channel (14), the connection sites (22,24,26) dividing the channel (14) into several channel sections (44,46,48), the vent holes (38,40,42) allocated thereto being able to be opened separately, thereby allowing stepwise fluid flow into said respective channel sections (44,46,48), and at least one chamber (50,52,54) being arranged in the channel sections (44,46,48) upstream of each connection site (22,24,26) in flow direction.
Specification