Abstract: A cell implant matrix has a connective porosity of more than 80% and consists mainly of a mixture of bioresorbable polymers, wherein the matrix has disk-shape and wherein a surface layer on one side of the disk has less than 20% of the average pore density of the other sides. The matrix is manufactured by providing a bioresorbable polymer layer; stratifying, onto the polymer layer, a mixture of a water-soluble solid, at least two polymers differing with respect to their resorption rates, and a solvent for one of the polymers; evaporating the solvent optionally followed by compacting the mixture; and watering the compacted body to remove the salt.

Abstract: A porous implant matrix consists mainly of a mixture of polymers which are differently rapidly degradable, wherein nominal resorption times of two of the components of the mixture, each accounting for at least 10% of the mixture, differ by a factor of at least 5. The porous implant matrix is manufactured from a mixture of the at least two differently rapidly degradable polymers, wherein particles of both polymers are mixed with particles of a water-soluble solid and a solvent for one of the polymers, and after evaporating the solvent is optionally compacted, and the solid is removed by watering.

Abstract: The invention relates to a method for hydrophilizing surfaces of polymer workpieces. The method has a step (a) of pretreating the workpiece surfaces in a high-frequency gas plasma which is produced on the basis of an inert gas in order to clean and activate the workpiece surfaces; a step (b) of precoating the pretreated workpiece surfaces with polyacrylic acid using a high-frequency gas plasma made of a gas mixture, said gas mixture being composed of an inert gas and a first gas made of biocompatible, polymerizable carboxy group-containing monomers; and a step (c) of subsequently coating the precoated workpiece surfaces using a second gas substantially containing acrylic acid monomers.

Abstract: An intraocular lens has a hydrophobic lens body (1) made of silicone, at the surface of which a hydrophilic layer (2) made of polyacrylate is provided, wherein the layer (2) is a PECVD/CVD-layer having a water contact angle of less than 10°. A process for hydrophilizing the surfaces of the intraocular lens includes steps for PECVD-pre-coating the pre-treated lens surfaces, and for c) CVD-follow-up-coating the so pre-coated lens surfaces.

Abstract: The invention relates to a method for hydrophilizing surfaces of polymer workpieces. The method has a step (a) of pretreating the workpiece surfaces in a high-frequency gas plasma which is produced on the basis of an inert gas in order to clean and activate the workpiece surfaces; a step (b) of precoating the pretreated workpiece surfaces with polyacrylic acid using a high-frequency gas plasma made of a gas mixture, said gas mixture being composed of an inert gas and a first gas made of biocompatible, polymerizable carboxy group-containing monomers; and a step (c) of subsequently coating the precoated workpiece surfaces using a second gas substantially containing acrylic acid monomers.

Abstract: A silicone contact lens has a radial cross-section of the inner face, the rim portion contour of which is convex between a point of inflection and the outer edge. For its manufacture, a silicone precursor is brought between a female and a male mold and is polymerized, and the polymerized contact lens is released from the mold by means of a liquid swelling same.

Abstract: A hydrophilizingly coated silicone contact lens has a radial cross-section of the inner face (1), the rim portion contour of which is convex (7) between a point of inflection (6) and the outer edge. For its manufacture, a silicone precursor is brought between a female and a male mold and is polymerized, and the polymerized contact lens is released from the mold by means of a liquid swelling same and is completed after a PECVD/CVD-coating without edge cutting.

Abstract: A cell implant matrix has a connective porosity of more than 80% and consists mainly of a mixture of bioresorbable polymers, wherein the matrix has disk-shape and wherein a surface layer on one side of the disk has less than 20% of the average pore density of the other sides. The matrix is manufactured by providing a bioresorbable polymer layer; stratifying, onto the polymer layer, a mixture of a water-soluble solid, at least two polymers differing with respect to their resorption rates, and a solvent for one of the polymers; evaporating the solvent optionally followed by compacting the mixture; and watering the compacted body to remove the salt.

Abstract: A porous implant matrix consists mainly of a mixture of polymers which are differently rapidly degradable, wherein nominal resorption times of two of the components of the mixture, each accounting for at least 10% of the mixture, differ by a factor of at least 5. The porous implant matrix is manufactured from a mixture of the at least two differently rapidly degradable polymers, wherein particles of both polymers are mixed with particles of a water-soluble solid and a solvent for one of the polymers, and after evaporating the solvent is optionally compacted, and the solid is removed by watering.

Abstract: A silicone contact lens has a radial cross-section of the inner face, the rim portion contour of which is convex between a point of inflection and the outer edge. For its manufacture, a silicone precursor is brought between a female and a male mold and is polymerized, and the polymerized contact lens is released from the mold by means of a liquid swelling same.

Abstract: The invention relates to a method for hydrophilizing surfaces of polymer workpieces. The method has a step (a) of pretreating the workpiece surfaces in a high-frequency gas plasma which is produced on the basis of an inert gas in order to clean and activate the workpiece surfaces; a step (b) of precoating the pretreated workpiece surfaces with polyacrylic acid using a high-frequency gas plasma made of a gas mixture, said gas mixture being composed of an inert gas and a first gas made of biocompatible, polymerizable carboxy group-containing monomers; and a step (c) of subsequently coating the precoated workpiece surfaces using a second gas substantially containing acrylic acid monomers.