Abstract:
Oxygen to be administered to a patient is humidified by passing the oxygen through a standard water-containing intravenous solution bottle. A coupling assembly having an inlet tube and an outlet tube is inserted into the two openings defined by the stopper of the intravenous solution bottle, and is coupled to an oxygen supply. The connector assembly is capable of supporting the bottle, and carries a humidified oxygen outlet to which a nasal cannula is coupled.
Abstract:
A rigid chamber formed by a pair of hinged members which are shaped to receive an expandable container such as a plastic bag of parenteral fluid contains a first opening which is selectively connected to a source of vacuum and a second opening through which a sealed tubular port on the container may be placed so that it will be accessible from the exterior of the chamber to permit the connection thereto of a vial containing a material such as a medicament to be added to the bag. The chamber is pivotally mounted for movement between a horizontal bag loading and unloading position and a vertical position for adding medicaments. The vacuum supply to the chamber is automatically controled by a valve built into the pivotal mounting so that in the horizontal position of the chamber the vacuum is shut off and in the vertical position it is actuated. The arrangement makes it possible to add the contents of vials containing not only freely flowing liquid additives but also very viscous ones as well as powdered or granular materials. The system can also be operated is such a way that the contents of a plurality of medicament vials or syringes can be added to the bag even though the volume of the material to be transfered from the plurality of medicament containers is greater than the initial free air volume in the bag.