MICROFLUIDIC CELL AND METHOD FOR THE PRODUCTION THEREOF
First Claim
1. A method for the production of a microfluidic cell, comprising:
- structuring a glass element that has a thickness of at most 700 micrometers to have an opening that connects two opposite-lying parallel side faces of the glass element; and
attaching a first glass part to a first face of the two side faces and a second glass part to a second face of the two side faces to seal the opening so that a cavity that is enclosed between the two glass parts, wherein the cavity is configured to convey fluids,wherein the step of attaching at least one of the first and second glass parts comprises using an adhesive in such a manner that the opening is left free of the adhesive.
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Accused Products
Abstract
A method for the production of microfluidic cells using a disc-shaped glass element is provided. The disc-shaped glass element has a thickness of at most 700 micrometers is structured in such a way that it has at least one opening. The opening connects the two opposite-lying, parallel side faces of the glass element. The side faces are attached to a glass part so that the opening is sealed by the two glass parts to form a microfluidic cell having a cavity enclosed therein. The cavity is suitable for the conveyance of fluids. The attachment of the glass element to at least one of the two glass parts is produced by an adhesive that is applied onto the side face of the glass element. During application of the adhesive, the at least one opening in the glass element is left free of adhesive.
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Citations
24 Claims
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1. A method for the production of a microfluidic cell, comprising:
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structuring a glass element that has a thickness of at most 700 micrometers to have an opening that connects two opposite-lying parallel side faces of the glass element; and attaching a first glass part to a first face of the two side faces and a second glass part to a second face of the two side faces to seal the opening so that a cavity that is enclosed between the two glass parts, wherein the cavity is configured to convey fluids, wherein the step of attaching at least one of the first and second glass parts comprises using an adhesive in such a manner that the opening is left free of the adhesive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A microfluidic cell, comprising:
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a disc-shaped glass element with a thickness of at most 700 micrometers and an opening that connects two opposite-lying, parallel side faces of the glass element; a first glass part attached to a first face of the two side faces; a second glass part attached to a second face of the two side faces; a cavity defined by the opening being sealed by the first and second glass parts, the cavity being suitable for fluid conveyance; and dome shaped depressions in at least part of a wall the opening. - View Dependent Claims (16, 17, 18, 19, 20)
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- 21. A microfluidic cell, comprising a stack of at least two disc-shaped glass elements that are attached to each other and two glass parts that are attached to the stack and between which the stack is arranged, wherein the glass elements each have an opening that is sealed by attachment of the bordering glass element or the glass parts to form a cavity configured to convey fluids, wherein the openings in the glass elements communicate with one another, and wherein the glass elements and the glass parts are attached to one another by adhesive layers that leave the openings free of adhesive.
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23. An intermediate product for producing a microfluidic cell, comprising:
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a disc-shaped glass element with a thickness of at most 700 micrometers and an opening that connects two opposite-lying, parallel side faces of the glass element; and adhesive on each of the two side faces, the opening being free of the adhesive. - View Dependent Claims (24)
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Specification