Assembly for use in a drug delivery device

Patent metadata

Field	Value
Publication number	US-2017136181-A1
Application number	US-201715405739-A
Country	US
Kind code	A1
Filing date	Jan 13, 2017
Priority date	May 20, 2009
Publication date	May 18, 2017
Grant date	—

Abstract

The present invention relates to an assembly for a drug delivery device comprising a dispensing container and a reservoir container for holding a fluid medicinal product, wherein the dispensing container and the reservoir container are connected to one another and are in fluid communication, and wherein the dispensing container is squeezable for dispensing a dose of the fluid medicinal product from the dispensing container, the dispensing container being refillable with the fluid medicinal product from the reservoir container.

First claim

1 . A drug delivery device, comprising:
a housing configured to receive a reservoir container holding a fluid medicinal product, wherein the reservoir container includes an outlet located at a first end of the reservoir container and the reservoir container is coupled to a dispensing spring at a second end of the reservoir container located generally opposite the first end; a needle unit coupled to the housing; a flow path comprising a flexible tube fluidly connecting the reservoir container and the needle unit; a first control member located generally at the first end of the reservoir container and configured to allow a flow of the fluid medicinal product into the flow path from the reservoir; and an actuator movably positioned within the housing and configured to dispense a dose of the fluid medicinal product.

2 . The drug delivery device of claim 1 , wherein the first control member fluidly connects the flexible tube to the outlet of the reservoir container.

3 . The drug delivery device of claim 1 , wherein the reservoir container is fixedly attached to the housing.

4 . The drug delivery device of claim 1 , wherein the actuator is configured to move relative to the reservoir container to dispense the fluid medicinal product.

5 . The drug delivery device of claim 1 , wherein the reservoir container is arranged generally parallel to a longitudinal axis of the housing.

6 . The drug delivery device of claim 5 , wherein the actuator is configured to move along the longitudinal axis of the housing.

7 . The drug delivery device of claim 1 , wherein the actuator is coupled to an actuator spring.

8 . The drug delivery device of claim 1 , further including a second control member configured to allow the fluid medicinal product to flow into the needle unit.

9 . The drug delivery device of claim 8 , wherein the second control member is coupled to the needle unit.

10 . The drug delivery device of claim 8 , wherein the second control member is located between the flexible tube and the needle unit.

11 . The drug delivery device of claim 8 , wherein the second control member fluidly connects the flow path to the needle unit.

12 . A drug delivery device, comprising:
a housing coupled to a reservoir container configured to hold a fluid medicinal product; a needle unit coupled to the housing; a flow path fluidly connecting the reservoir container to the needle unit, the flow path comprising at least a flexible tube; a first control member configured to open to allow the fluid medicinal product to flow from the reservoir; a second control member configured to open to allow the fluid medicinal product to flow through the needle unit; and an actuator configured to open the first and second control members and move the flexible tube to dispense a dose of the fluid medicinal product.

13 . The drug delivery device of claim 12 , wherein the reservoir container includes an outlet located at a first end of the reservoir container that is fluidly coupled to the first control member.

14 . The drug delivery device of claim 13 , wherein the reservoir container is coupled to a dispensing spring at a second end of the reservoir container located generally opposite the first end.

15 . The drug delivery device of claim 14 , wherein the first and second ends of the reservoir container are arranged along a longitudinal axis of the housing.

16 . The drug delivery device of claim 15 , wherein the actuator is configured to move along the longitudinal axis of the housing.

17 . A method of operating a drug delivery device, comprising:
moving an actuator relative to a housing of the drug delivery device to; a) open a first control member to allow a fluid medicinal product to flow from a reservoir to a flow path of the drug delivery device; b) move at least part of a flexible tube located within the flow path; and c) open a second control member to allow the fluid medicinal product to flow from the flow path to a needle unit of the drug delivery device.

18 . The method of claim 17 , further comprising applying a force to a second end of the reservoir container to force the fluid medicinal product to flow from a first end of the reservoir container.

19 . The method of claim 17 , wherein moving the actuator relative to the housing includes moving the actuator along a longitudinal axis of the housing.

20 . The method of claim 19 , further comprising applying a spring force to the actuator to return the actuator to a starting position.

Assignees

• Sanofi Aventis Deutschland

Inventors

• Basso Nils
• Nagel Thomas
• Richter Rene
• Witt Robert
• Schirmer Jens

Classifications

• A61M5/16813

  by controlling the degree of opening of the flow line · CPC title

• A61M5/148

  flexible, {e.g. independent bags}(A61M5/155 takes precedence) · CPC title

• A61M5/282

  by compression of deformable ampoule or carpule wall · CPC title

• A61M5/1483 Primary

  using flexible bags externally pressurised by fluid pressure · CPC title

• A61M5/19 Primary

  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 title