Microsystem for fluidic applications, and production method and usage method for a microsystem for fluidic applications
AssigneeRobert Bosch GmbH
InventorsManuela Schmidt, Martina Daub, Jochen Rupp
Life of this patent
Estimating the term…
Abstract
A microsystem for fluidic applications includes a substrate with a reservoir, a first microchannel, connected to the reservoir, and a second microchannel, separated from the first microchannel by a fixed member. The microsystem furthermore has an elastic film on the substrate, which film has a joint to the substrate around the reservoir and seals the reservoir. Here, the joint has a permanent joining area and, on the fixed member, a fixed member joining area that can be broken open and adjoins the permanent joining area at both ends of the fixed member. Such a microsystem forms a processing chip with reagent receptacle.
Claims15
A microsystem for fluidic applications comprising:
- a substrate with a reservoir;
- a first microchannel, fluidically connected to the reservoir;
- a second microchannel, separated from the first microchannel by a fixed member;
- a first elastic film section that is fixedly attached to the substrate around the reservoir so as to seal the reservoir;
- and
- a second elastic film section that is fixedly attached to the fixed member so as to form a breakable seal that can be broken open to fluidically connect the first microchannel with the second microchannel.
A production method for a microsystem for fluidic applications having a substrate with a reservoir, a first microchannel fluidically connected to the reservoir, and a second microchannel separated from the first microchannel by a fixed member, comprising:
- filling the reservoir with a reagent liquid;
- arranging a first elastic film section on the substrate;
- fixedly attaching the first elastic film section to the substrate around the reservoir so as to seal the reservoir;
- arranging a second elastic film section over at least the fixed member;
- and
- fixedly attaching the second elastic film section to the fixed member so as to form a breakable seal that can be broken open to form a fluidic connection between the first microchannel and the second microchannel.
A usage method for a microsystem for fluidic applications having a substrate, which has a reservoir filled with a reagent liquid, a first microchannel fluidically connected to the reservoir, a second microchannel separated from the first microchannel by a fixed member, a first elastic film section fixedly attached to the substrate around the reservoir to seal the reservoir, and a second elastic film section fixedly attached to the fixed member so as to form a breakable seal that can be broken open in order form a fluidic connection between the first microchannel and the second microchannel, comprising:
- deflecting the first elastic film section into the reservoir and displacing reagent liquid from the reservoir;
- breaking open the breakable seal;
- and
- supplying reagent liquid from the reservoir through the first microchannel, along the broken-open fluidic connection and into the second microchannel.
Dependencies are inferred from the claim text.