Abstract: A syringe adapter is used for connecting a dosing syringe to a container in order to take up a fluid. The syringe adapter has a fluid delivery channel for creating a flow connection between the inside of the container and the inside of the dosing syringe. At least one ventilation channel of the syringe adapter is used for creating an air connection between the inside of the container and the container surroundings. In at least one of the channels a non-return valve is arranged, which allows the passage of media in an open position and in a closed position closes the channel. This results in a syringe adapter which has improved handing and in particular provides sufficient dosing precision.

Abstract: A device serves for transferring a fluid between a storage container and at least one further container for use. Said transfer device comprises a sealing section by means of which a main part of the transfer device sealingly rests on the storage container. A hollow-needle assembly comprises a hollow needle which can be moved between a retracted resting position and a deployed connecting position, the assembly, in the connecting position, providing a fluid connecting channel between the storage container and the transfer device. The hollow-needle assembly can be moved by means of a pressure actuating element. During said movement, the pressure actuating element is primarily connected to the sleeve of the hollow needle so as to be resistant to shear forces. A guiding device serves to axially guide the pressure actuating element on the main part. Said guiding device has at least one guiding pin. Said guiding pin slides in at least one associated guiding groove during movement.

Abstract: An apparatus for transferring a liquid between a storage container and at least one further use container has a storage-container sealing portion for leaktight abutment of a main body of the transfer apparatus against the storage container. A hollow-needle assembly has a hollow needle. The hollow-needle assembly can be displaced in a linear manner along a movement axis relative to the main body by means of a gear mechanism between a retracted rest position and an extended connecting position. In the latter, the hollow needle creates a liquid connecting duct between the storage container and the transfer apparatus. A connecting portion serves to connect the transfer apparatus to the use container in a leaktight manner. A rotary-actuation element is operatively connected to the hollow-needle assembly via the gear mechanism. The gear mechanism has a driver ring that is mounted in the main body axially and so as to be rotatable about the movement axis.

Abstract: A hollow-needle assembly is part of a transfer apparatus that serves for transferring a liquid between a storage container and a further use container. The hollow-needle assembly has a hollow needle having a pointed needle end. A liquid duct for transporting liquid through the hollow needle and out of the latter leads out via at least one liquid-duct opening in the region of the free needle end. An aeration gas duct that likewise leads out via a gas-duct opening in the region of the free needle end serves for transporting gas through the hollow-needle assembly. Duct paths of the at least one liquid duct and of the at least one aeration gas duct extend separately from one another. The ducts lead out adjacently to one another axially along the hollow needle and in a manner offset from one another in the circumferential direction.

Abstract: The invention concerns a dosing system for adjusting a dose volume of a fluid medium. The dosing system has a longitudinal center axis, a dosing sleeve with at least one communication opening, a dosing plunger, which can move axially in the dosing sleeve between a retracted and a depressed position to take up and dispense the medium through the communication opening, and a retraction limiting element to delimit a maximum axial retraction path of the dosing plunger. The retraction limiting element in at least one position can be axially fixed to the dosing plunger and can move radially to the longitudinal center axis between an inner position, axially fixed on the dosing plunger, and an outer position relative to the dosing plunger. In the inner position, it is completely inside the dosing sleeve. Furthermore, the dosing system has an end stop arranged on the dosing sleeve for interaction with the retraction limiting element in the retracted position of the dosing plunger.

Abstract: A syringe adapter is used for connecting a dosing syringe to a container in order to take up a fluid. The syringe adapter has a fluid delivery channel for creating a flow connection between the inside of the container and the inside of the dosing syringe. At least one ventilation channel of the syringe adapter is used for creating an air connection between the inside of the container and the container surroundings. In at least one of the channels a non-return valve is arranged, which allows the passage of media in an open position and in a closed position closes the channel. This results in a syringe adapter which has improved handing and in particular provides sufficient dosing precision.

Abstract: The invention relates to a dosage system for setting a dosage volume of a flowable medium. The dosage system comprises a longitudinal axis, a dosage container for receiving the medium, and a dosage piston body which is adapted for sealed displacement in the dosage container between an initial position and a dosage position. In the initial position, the dosage piston body is fully inserted in the dosage container while in the dosage position, the dosage piston body has been pulled out of the dosage container along a path corresponding to the desired dosage amount of the medium. The dosage system further exhibits a draw-up limiting member for limiting a draw-up path of the dosage piston body in the dosage position, the draw-up limiting member being axially securable to the dosage container in one of several limiting positions relative to the longitudinal axis.

Abstract: The invention concerns a dosing system for adjusting a dose volume of a fluid medium. The dosing system has a longitudinal center axis (1), a dosing sleeve (3) with at least one communication opening (7), a dosing plunger (4), which can move axially in the dosing sleeve (3) between a retracted and a depressed position to take up and dispense the medium through the communication opening (7), and a retraction limiting element (5) to delimit a maximum axial retraction path of the dosing plunger (4). The retraction limiting element (5) in at least one position can be axially fixed to the dosing plunger (4) and can move radially to the longitudinal center axis (1) between an inner position, axially fixed on the dosing plunger (4), and an outer position relative to the dosing plunger (4). In the inner position, it is completely inside the dosing sleeve (3).