Abstract: A magnetic non-return valve having a valve body and a valve housing arrangement, wherein the valve body is guided so as to be axially displaceable in the valve housing arrangement and closes the fluid duct of the valve housing arrangement by way of a holding force acting counter to the direction of flow, wherein the axial holding force is generated by a repelling magnet arrangement, wherein a concentric piston connected to the valve body via the end face comprises a first magnet arrangement and the valve body guide comprises a second magnet arrangement, wherein the first magnet arrangement is arranged in a cavity of the piston and is enclosed so as to be media-tight on all sides, and the second magnet arrangement is arranged in a cavity of the valve body guide and is enclosed so as to be media-tight on all sides.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.

Abstract: A port system including an implantable first fluid guiding system, an external second fluid guiding system with a connecting head at one end, a percutaneously implantable port for establishing a fluid connection between the fluid guiding systems, the port including a port casing which forms a first connecting element, and a connecting device which includes a second connecting element, wherein the connecting head is fastened to the port casing by a releasable, engagement of the connecting elements, several embodiments of which connecting elements are encompassed.

Abstract: A cannula which increases in pliability during use, wherein prior to use the cannula includes at least one material of variable hardness or at least two materials of differing hardness, of which the variably harder or material having the greater hardness is yielded or dissolved during application.

Abstract: A port system including an implantable first fluid guiding system, an external second fluid guiding system with a connecting head at one end, a percutaneously implantable port for establishing a fluid connection between the fluid guiding systems, the port including a port casing which forms a first connecting element, and a connecting device which includes a second connecting element, wherein the connecting head is fastened to the port casing by a releasable, engagement of the connecting elements, several embodiments of which connecting elements are encompassed.

Abstract: A cannula which increases in pliability during use, wherein prior to use the cannula includes at least one material of variable hardness or at least two materials of differing hardness, of which the variably harder or material having the greater hardness is yielded or dissolved during application.

Abstract: A device for inserting a cannula into tissue, including a cannula, a protective element which can accommodate said cannula, an operating element for moving the cannula out of the protective element, and a holder fixedly connected to the cannula. The invention encompasses a system for connecting a liquid supply to the cannula.