Method and system for producing microstructures
AssigneeLTS Lohmann Therapie-Systeme AG
InventorsMichael Kulik, Olga Grünwald, Philip Roos, Nikolaj Tissin
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Abstract
The invention relates to a method for producing microstructures, the method including providing a planar mold element, which includes at least one mold opening for the microstructure to be produced, wherein the at least one mold opening has a first opening and a second opening; providing a first formulation at the second opening; generating a negative pressure in the mold opening; and taking up the first formulation through the second opening into the mold opening on account of the negative pressure in the mold opening. The invention further relates to a system for producing microstructures.
Claims16
A method for producing microstructures, the method comprising the steps of:
- providing a planar mold element, which comprises at least one mold for the microstructure to be produced, each of the at least one mold having a first opening and a second opening, wherein the second opening is located opposite the first opening;
- providing a first formulation at the second opening, wherein the formulation contains an active ingredient;
- reducing a volume of the at least one mold, wherein reducing the volume of the at least one mold is achieved by a compression of the mold element;
- generating a negative pressure in the at least one mold;
- and
- taking up the first formulation through the second opening into the at least one mold on account of the negative pressure in the at least one mold,
- wherein the step of reducing the volume of the at least one mold by a compression of the mold element occurs prior to an expansion of the volume of the at least one mold, and
- wherein the compression is achieved by pressing and bending of the mold element so as to reduce the volume of the at least one mold.
A method for producing microstructures, the method comprising the steps of:
- providing a planar mold element, which comprises at least one mold for the microstructure to be produced, each of the at least one mold having a first opening and a second opening, wherein the second opening is located opposite the first opening;
- providing a first formulation at the second opening, wherein the formulation contains an active ingredient;
- reducing a volume of the at least one mold, wherein reducing the volume of the at least one mold is achieved by a compression of the mold element;
- generating a negative pressure in the at least one mold;
- taking up the first formulation through the second opening into the at least one mold on account of the negative pressure in the at least one mold;
- providing a second formulation at the first opening, the second formulation being free of an active ingredient;
- taking up the second formulation into the at least one mold through the first opening, the second formulation bonding with the first formulation;
- and
- demolding the first formulation, which has at least partially solidified, and the second formulation at the first opening of the at least one mold to form a microstructure,
- wherein the step of reducing the volume of the at least one mold by the compression of the at least one mold element occurs prior to an expansion of the volume of the at least one mold.
A method for producing microstructures, the method comprising the steps of:
- providing a planar mold element, which comprises at least one mold for the microstructure to be produced, each of the at least one mold having a first opening and a second opening, wherein the second opening is located opposite the first opening;
- providing a first formulation at the second opening, wherein the formulation contains an active ingredient;
- reducing a volume of the at least one mold, wherein reducing the volume of the at least one mold is achieved by a compression of the mold element;
- generating a negative pressure in the at least one mold;
- taking up the first formulation through the second opening into the at least one mold on account of the negative pressure in the at least one mold;
- and
- expanding the volume of the at least one mold to generate the negative pressure in the at least one mold,
- wherein the step of reducing the volume of the at least one mold by the compression of the mold element occurs prior to an expansion of the volume of the at least one mold,
- wherein the compression is achieved by pressing and bending of the mold element so as to reduce the volume of the at least one mold, and
- wherein the compression of the mold element is performed using at least one roll.
Dependencies are inferred from the claim text.