System for preparing and making available a flowable medium formed by mixing a dry substance with a fluid
OwnerBernd Hanseninventor
Life of this patent
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Abstract
A system for preparing and making available a flowable medium (43) that is formed by mixing a dry substance (39) with a fluid (41), in particular a medium for therapeutic purposes includes a) a first container (1) receiving the fluid (41) and has a wall part (3) able to deform counter to a restoring force to change the container volume, b) a second container (35) receiving the dry substance (39), and c) a transfer device (21) for producing a fluid communication between the first container (1) and the second container (35).
Claims11
A system for preparing and making available a flowable medium formed by mixing a dry substance with a fluid, comprising:
- a first container holding the fluid, having a wall part deformable against a restoring force to change a volume of said first container and having a head part with a first catch on one end thereof, said head part having a hollow central projection with a free end and a Luer connection adjacent said free end, said first catch including arms with catch bodies integrally molded with said head part, extending along an outside surface of said central projection and forming an intermediate space therebetween, said catch bodies having free end regions with first catch parts thereon facing said central projection;
- a second container holding the dry substance;
- a transfer device connecting said first and second containers in fluid communication and having a connector with a second catch releasably engageable and mating with said first catch parts and having a seat sealable to said Luer connection;
- and
- a removable twist-off toggle closure part integral with said central projection normally closing said Luer connection of said central projection.
A method for preparing and making available a flowable medium formed by mixing a dry substance with a fluid, comprising the steps of
- removing an integral twist-off toggle closure part normally closing a Luer connection adjacent a free end of a hollow central projection of a first container holding a fluid;
- connecting the first container to a transfer device by releasably engaging first catch parts on free end regions of catch bodies of arms integrally molded on a head part of the first container to extend along an outside surface of the central projection of the first container to form an intermediate space between the central projection and the arms with a second catch on the transfer device and by releasably engaging and sealing the Luer connection with a seat in the transfer device;
- connecting a second container holding a dry substance to the transfer device such that the first and second containers are in fluid communication;
- compressing a wall part of the first container against a restoring force thereof to change a volume of the first container and to force the fluid in the first container through the transfer device and into the second container to mix with the dry substance to produce the flowable medium in the second container;
- and
- terminating compressing the wall part and allowing the restoring force to expand the volume of the first container to cause the flowable medium to be conveyed through the transfer device into the first container.
Dependencies are inferred from the claim text.