Dispense interface for an ejection device

• US 9,610,406 B2
• Filed: 07/10/2013
• Issued: 04/04/2017
• Est. Priority Date: 07/11/2012
• Status: Active Grant

• Current Assignee: Sanofi-Aventis Deutschland GmbH (Sanofi )
• Original Assignee: Sonofi-Aventis Deutschland GmbH
• Inventors: Eggert, Ilona, Laugere, Frederic, Popa, Cristian, Impey, Ben, Macleod, Andrew
• Primary Examiner(s): Price, Nathan R
• Assistant Examiner(s): Snyder, Melissa A
• Application Number:
  US14/412,729
• Publication Number:
  US 20150157797A1
• Time in Patent Office: 1,364 Days
• CPC Class Codes: A61M 2005/3128 Incorporating one-way valves, e.g. pressure-relief or non-return valves
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/121 interface between cassette and base
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491
• CPC Class Codes: A61M 5/2448 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/2455 with sealing means to be broken or opened
• CPC Class Codes: A61M 5/3294 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: A61M 5/3295 Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
• CPC Class Codes: A61M 5/3298 Needles arranged in parallel
• CPC Class Codes: A61M 5/343 Connection of needle cannula to needle hub, or directly to syringe nozzle without a needle hub A61M5/322 takes precedence

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.

Claims

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 rotatable flap positioned within the ullage, wherein the rotatable flap is rotatably coupled to the ullage, and wherein the rotatable flap is configured to control a fluid flow from said at least two inlets to said at least one outlet via said fluid channel arrangement;

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.