Apparatus for delivering sensitive liquid media

Abstract

Apparatus for delivering sensitive liquid media, such as solutions, dispersions, suspensions, and the like, which comprises at least one flexible container having an outlet and enclosing a liquid medium. A pressure chamber which accommodates the container. The outlet of the container can be led through the chamber wall. A pressure source can be connected to the pressure chamber and the pressure chamber can be pressurized thereby.

What is claimed is:  
     
         1 . An apparatus for delivering liquid media, comprising 
 at least one flexible container which has an outlet and encloses a liquid medium,    a pressure chamber which accommodates the container and from which the outlet from the container can be led, and    a pressure source connection to the pressure chamber by which the pressure chamber can be pressurized.    
     
     
         2 . The apparatus as claimed in  claim 1 , further comprising a pressure source to the pressure source connection and the source acts on the pressure chamber with nitrogen.  
     
     
         3 . The apparatus as claimed in  claim 1 , further comprising a monitoring device operable for setting a defined pressure or for setting a defined pressure variation over time.  
     
     
         4 . The apparatus as claimed in  claim 1 , wherein the container is a bag.  
     
     
         5 . The apparatus as claimed in  claim 1 , wherein the container is a sterile disposable bag.  
     
     
         6 . The apparatus as claimed in  claim 1 , further comprising a vibrating unit positioned and operable to act on the medium to be discharged from the container.  
     
     
         7 . The apparatus as claimed in  claim 6 , wherein the vibrating unit includes a vibrating table on which the pressure chamber may be arranged.  
     
     
         8 . The apparatus as claimed in  claim 1 , further comprising a device in the chamber which supports the container so as to not block the exit of medium through the outlet.  
     
     
         9 . The apparatus as claimed in  claim 1 , further comprising an outlet conduit from the container outlet and a sealable passage from the chamber through which the outlet conduit passes to outside the chamber while the chamber is sealed.