Abstract: A method of electrospinning (40) is provided, and an electrospinning device (1; 30). The method comprises (i) holding (41) a liquid comprising a polymer melt or a polymer solution in a container (2), (ii) letting out (42) a stream of the liquid from the container through at least one nozzle (3), (iii) creating (43) a voltage difference between the nozzle (3) and a collecting surface (4), (iv) collecting (44) electro spun material coming from the nozzle (3) so as to form a fibrous structure (8) on the collecting surface (4), and (v) directing (45) a laser beam (13) towards the collecting surface (4) so as to locally remove a part of the fibrous structure (8).

Abstract: A nozzle for an electrospinning spinneret, the nozzle including a material transporting channel having a wall that has an end surface for forming a droplet, and an electrode extending through the material transporting channel at least up to the end surface of the wall.

Abstract: An improved electro hydrodynamic method is provided. The method comprises arranging (11) an electro hydrodynamic device inside an enclosure and distributing (12) positive and/or negative ions inside the enclosure during a charging period with a certain defined amount of power. The distribution of the positive and/or the negative ions inside the enclosure (20) is performed so that a predefined amount of charge is set on the interior of the enclosure (20). Within a predetermined period of time after the charging period has ended, the electrospinning device is activated so as to create a product. Finally, the product is removed from the device. The present invention offers a solution for the problem of non-identical initial process conditions for an electro hydrodynamic process caused by any electric charges on the equipment.

Abstract: An electrospinning device (1; 30) is provided comprising: a container (2) for holding a liquid comprising a polymer melt or a polymer solution; a nozzle (3) arranged to outlet a stream of the liquid from the container; a collecting surface (4) for collecting electro spun material coming from the nozzle during an electrospinning process so as to form a fibrous structure (8) on the collecting surface (4); a voltage supply system (5) arranged to create a voltage difference between the nozzle and the collecting surface (4), one or more electrostatic emitters (10; 38) arranged to locally distribute positive and/or negative ions onto the fibrous structure, and one or more rotatable bodies (6; 36) arranged to cause the collecting surface (4) to face the nozzle (3) and the electrostatic emitters (10; 38) in turn.

Abstract: An improved electro hydrodynamic method is provided. The method comprises arranging (11) an electro hydrodynamic device inside an enclosure and distributing (12) positive and/or negative ions inside the enclosure during a charging period with a certain defined amount of power. The distribution of the positive and/or the negative ions inside the enclosure (20) is performed so that a predefined amount of charge is set on the interior of the enclosure (20). Within a predetermined period of time after the charging period has ended, the electrospinning device is activated so as to create a product. Finally, the product is removed from the device. The present invention offers a solution for the problem of non-identical initial process conditions for an electro hydrodynamic process caused by any electric charges on the equipment.

Abstract: An electrospinning device (1; 30) is provided comprising: a container (2) for holding a liquid comprising a polymer melt or a polymer solution; a nozzle (3) arranged to outlet a stream of the liquid from the container; a collecting surface (4) for collecting electro spun material coming from the nozzle during an electrospinning process so as to form a fibrous structure (8) on the collecting surface (4); a voltage supply system (5) arranged to create a voltage difference between the nozzle and the collecting surface (4), one or more electrostatic emitters (10; 38) arranged to locally distribute positive and/or negative ions onto the fibrous structure, and one or more rotatable bodies (6; 36) arranged to cause the collecting surface (4) to face the nozzle (3) and the electrostatic emitters (10; 38) in turn.

Abstract: A method of electrospinning (40) is provided, and an electrospinning device (1; 30). The method comprises (i) holding (41) a liquid comprising a polymer melt or a polymer solution in a container (2), (ii) letting out (42) a stream of the liquid from the container through at least one nozzle (3), (iii) creating (43) a voltage difference between the nozzle (3) and a collecting surface (4), (iv) collecting (44) electro spun material coming from the nozzle (3) so as to form a fibrous structure (8) on the collecting surface (4), and (v) directing (45) a laser beam (13) towards the collecting surface (4) so as to locally remove a part of the fibrous structure (8).

Abstract: The present relates to the field of dental and bone surgery. In particular, the invention relates to fibrous pharmaceutical compositions; fibrous webs, yarns and woven fabrics of such pharmaceutical compositions; to implant material essentially consisting of fibrous pharmaceutical compositions; to the manufacturing and use of such fibers/webs/implant materials.

Abstract: The present relates to the field of dental and bone surgery. In particular, the invention relates to fibrous pharmaceutical compositions; fibrous webs, yarns and woven fabrics of such pharmaceutical compositions; to implant material essentially consisting of fibrous pharmaceutical compositions; to the manufacturing and use of such fibers/webs/implant materials.