Abstract: A catheter coupling has a tubing and two jaws extending in the longitudinal direction of the tubing which form a channel having an orifice to accommodate an end section of a catheter when the jaws abut against each other. The jaws are interconnected at a respective jaw end via a jaw joint having a joint axis extending transversely to the tubing. The other jaw end includes a snap-in locking member and a counter snap-in locking member, respectively, interacting therewith to form a snap-in locking arrangement. In the engagement position, the tubing is deformed by at least one jaw deformation component to securely accommodate the catheter. The coupling has at least one inspection window that allows a stop in the tubing for the end section of the catheter to be visually inspected to prevent an end section of the catheter from being introduced into the tubing if it is too short.

Abstract: A metering device is used for the metered administration of a flowable preparation together with a flowable carrier medium. A storage container for the preparation has at least one access opening. A metering plunger body can be moved in a sealed manner in the storage container between a starting position and at least one metering position. The metering plunger body is hollow. A metering sleeve has on a bottom side an eccentric metering sleeve opening. An inner plunger body has on the bottom side an eccentrically arranged plunger body opening. In a through relative rotation position of the metering sleeve relative to the inner plunger body a passage is provided between the inside of the storage container and the inside of the inner plunger body. In a closed relative rotational position this passage is closed. This results in a user-friendly and compact metering device.

Abstract: A catheter coupling has a tubing and two jaws extending in the longitudinal direction of the tubing which form a channel having an orifice to accommodate an end section of a catheter when the jaws abut against each other. The jaws are interconnected at a respective jaw end via a jaw joint having a joint axis extending transversely to the tubing. The other jaw end is in each case provided with a snap-in locking member and a counter snap-in locking member, respectively, interacting therewith to form a snap-in locking arrangement. In the engagement position, the tubing is deformed by at least one jaw deformation component to securely accommodate the catheter end section. The catheter coupling has at least one inspection window in a base body. The inspection window allows a stop in the tubing for the end section of the catheter to be visually inspected. As a result, a catheter coupling is obtained which prevents an end section of the catheter from being introduced into the tubing if said end section is too short.

Abstract: A metering device is used for the metered administration of a flowable preparation together with a flowable carrier medium. A storage container for the preparation has at least one access opening. A metering plunger body can be moved in a sealed manner in the storage container between a starting position and at least one metering position. The metering plunger body is hollow. A metering sleeve has on a bottom side an eccentric metering sleeve opening. An inner plunger body has on the bottom side an eccentrically arranged plunger body opening. In a through relative rotation position of the metering sleeve relative to the inner plunger body a passage is provided between the inside of the storage container and the inside of the inner plunger body. In a closed relative rotational position this passage is closed. This results in a user-friendly and compact metering device.