Abstract: The invention relates to a multilayer material comprising at least two layers of web and at least one layer of particles, said particles being arranged between said at least two layers of web. According to the invention at least a part of said multilayer material is made of bioactive glass and said particles are sol-gel derived silica particles. The invention also relates to different uses of said multilayer material.

Abstract: Porous bioabsorbable, bioactive and load-bearing composite medical device structure includes a plurality of regular textile planar layers (1a, 1b . . . ) formed of continuous bioabsorbable polymer matrix and bioceramic fibers acting as reinforcements, both included in continuous fibrous elements (3) forming the textile layers. The layers are placed on top of each other to form a structure having two dimensions (x, y) at right angles to each other according to the two dimensions of the textile layer and a third dimension (z) perpendicular to them and resulting from the piling of the layers. A plurality of passages extend through the layers as a result of the openings (2) defined by portions of the continuous fibrous elements (3) extending substantially in the direction of the plane.

Abstract: A bioabsorbable implant or its part consists of a structure having a varying characteristic in at least in one direction defining a gradient corresponding this characteristic. The structure comprises bioabsorbable polymer and another substance within or next to said bioabsorbable polymer. The structure is constituted of a wound or folded blank (1) having a direction of variation (L) of a characteristic (Ch) which is at least one of the following: concentration of the other substance, species of the other substance, type of the bioabsorbable polymer, or porosity (size of openings in the blank), said structure having a winding axis or fold lines substantially perpendicular to said direction of variation (L). This results in said varying characteristic in the structure in said at least one direction defining the gradient and traversing superposed layers formed of sections of the blank (1) that are successive in said direction of variation (L).

Abstract: A bioactive glass composition which contains SiO2, Na2O, CaO, K2O, MgO, P2O5 and B2O3. The amount of SiO2 is 51-56 wt-% of the starting oxides, Na2O is 7-9 wt-% of the starting oxides, CaO is 21-23 wt-% of the starting oxides, K2O is 10-12 wt-% of the starting oxides, MgO is 1-4 wt-% of the starting oxides, P2O5 is 0.5-1.5 wt-% of the starting oxides, B2O3 is 0-1 wt-% of the starting oxides, provided that the total amount of Na2O and K2O is 17-20 wt-% of the starting oxides. Also disclosed is the manufacture and use of the bioactive glass composition.

Abstract: The invention relates to a porous composite which comprises particles made from a bioactive material, the particles being sintered together to form a porous composite. It is characteristic that the particles have one or more recesses or throughgoing holes, or that the particles provided with an unbroken surface layer are hollow.

Abstract: The invention relates to a porous textile product made from bioactive glass fibers.