Dispense interface for an ejection device

Abstract

The invention inter alia relates to a dispense interface for an ejection device. The dispense interface comprises at least two inlets, at least one outlet, a body part, and a fluid channel arrangement within the body part configured to provide fluid communication between the at least two inlets and the at least one outlet; wherein each of the at least two inlets is formed from a tubelike fluid element; wherein each of the tubelike fluid elements is molded into the body part; and wherein each of the tubelike fluid elements provides at least a part of the fluid channel arrangement within said body part.

1 . A dispense interface for an ejection device, said dispense interface comprising:
 at least two inlets;   at least one outlet;   an integral body part; and   a fluid channel arrangement within said integral body part configured to provide fluid communication between said at least two inlets and said at least one outlet;   an ullage formed as a recess in a surface of the integral body part;   a valve positioned within the ullage, wherein the valve is configured to control a fluid flow from said at least two inlets to said at least one outlet via said fluid channel arrangement and wherein the valve is selected from one of a diaphragm/flap valve, a shuttling valve, a molded duckbill valve and a flat spring valve;   wherein each of said at least two inlets is formed from a tubelike fluid element, wherein the tubelike fluid elements provide fluid communication between each of the at least two inlets and the ullage;   wherein each of said tubelike fluid elements is molded into the integral body part; and   wherein each of said tubelike fluid elements provides at least a part of the fluid channel arrangement within said integral body part and   wherein each of said tubelike fluid elements has a fluid pathway that is at least partially curved.   
     
     
         2 . The dispense interface according to  claim 1 , wherein each of said tubelike fluid elements is configured to establish a releasable fluid connection with a corresponding fluid connector of a fluid reservoir of said ejection device when said dispense interface is attached to said ejection device. 
     
     
         3 . The dispense interface according to  claim 1 , wherein each of said tubelike fluid elements is a needle or a hypo-tube. 
     
     
         4 . The dispense interface according to  claim 1 , wherein said at least one outlet is formed from a fluid connector, wherein said fluid channel arrangement empties into said fluid connector, and wherein said fluid connector is configured to establish a fluid connection with a corresponding fluid connector of a needle assembly, when said needle assembly is attached to said dispense interface. 
     
     
         5 . The dispense interface according to  claim 1 , wherein said at least one outlet is formed from a needle, wherein said fluid channel arrangement empties into said needle. 
     
     
         6 . The dispense interface according to  claim 1 , said dispense interface further comprising:
 a film layer;   wherein said film layer is bonded to said integral body part to seal said ullage of said integral body part.   
     
     
         7 . A method for manufacturing a dispense interface according to  claim 1 , said method comprising:
 providing at least two tubelike fluid elements; wherein each of said tubelike fluid elements has a fluid pathway that is at least partially curved; and   molding each of said tubelike fluid elements into an integral body part such that each of said tubelike fluid elements provides at least a part of a fluid channel arrangement within said integral body part.   
     
     
         8 . A method according to  claim 7 , said method further comprising:
 providing a film layer; and   bonding said film layer to said integral body part after molding the integral body part to seal said fluid channel arrangement of said body part.   
     
     
         9 . A system, comprising
 a dispense interface according to  claim 1 ;   an ejection device;   wherein said dispense interface is attached to said ejection device.   
     
     
         10 . The system according to  claim 9 , said system further comprising:
 a needle assembly;   wherein said needle assembly is attached to said dispense interface.   
     
     
         11 . The system according to  claim 9 , wherein said ejection device is a medical device configured to eject a medicament. 
     
     
         12 . The method for using a system according to  claim 9 , said method comprising:
 attaching said dispense interface to an ejection device having at least two fluid reservoirs;   ejecting a fluid from at least one of the reservoirs through said dispense interface; and   detaching said dispense interface from said ejection device.