Abstract: A piston stopper for a medicine injector, wherein the stopper has a stopper body with a mesh section and at least one sealing element positioned at least partly around the circumference of the stopper body, wherein at least one of the sealing element and mesh section is connected to the stopper body in a material bond. A method for manufacturing such a piston stopper is encompassed.

Abstract: A needle protecting device including a carrier and a needle cover connected to the carrier at a distal needle cover end, the needle cover including a proximal needle cover end which is movable relative to the distal needle cover end such that the needle cover may be elongated along the length of the needle from an exposing position in which the injection needle protrudes through the needle cover to a protecting position in which the needle cover surrounds the injection needle at least as far as its tip, wherein the needle cover is elongated by an elasticity force, and wherein locking elements, including at least a distal locking element and a proximal locking element, lock the needle cover against shortening in its protecting position.

Abstract: A device for transferring a fluid product from one container to another including a hollow needle suitable for piercing a membrane and having a first, front opening, the needle being connectable to one of the containers via a first, rear hollow needle opening so that the fluid product can be conveyed into or out of the container through the hollow needle and hollow needle openings, the needle having a second, rear opening which forms a fluid connection between the another container and a pressure compensation device or the environment while the fluid is being transferred.

Abstract: A needle protecting device including a carrier and a needle cover connected to the carrier at a distal needle cover end, the needle cover including a proximal needle cover end which is movable relative to the distal needle cover end such that the needle cover may be elongated along the length of the needle from an exposing position in which the injection needle protrudes through the needle cover to a protecting position in which the needle cover surrounds the injection needle at least as far as its tip, wherein the needle cover is elongated by an elasticity force, and wherein locking elements, including at least a distal locking element and a proximal locking element, lock the needle cover against shortening in its protecting position.

Abstract: A device for transferring a fluid product from one container to another including a hollow needle suitable for piercing a membrane and having a first, front opening, the needle being connectable to one of the containers via a first, rear hollow needle opening so that the fluid product can be conveyed into or out of the container through the hollow needle and hollow needle openings, the needle having a second, rear opening which forms a fluid connection between the another container and a pressure compensation device or the environment while the fluid is being transferred.