Injector and method of assembly

Patent metadata

Field	Value
Publication number	US-12427260-B2
Application number	US-202117380749-A
Country	US
Kind code	B2
Filing date	Jul 20, 2021
Priority date	Oct 24, 2013
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

An injector may include a container having a wall with an interior surface defining a closed sterile reservoir filled with a medical fluid or drug product. The injector may also include a fluid delivery system comprising a sterile container needle that is in fluid communication with the container in a delivery state, but may or may not be in fluid communication with the container in a storage state. The sterile container needle is attached to a connector, the connector mechanically coupled to the container to secure the sterile container needle to the container with the needle in the storage state. Further, the injector may include an actuator that is adapted to move the container needle from the storage state to the delivery state.

First claim

I claim:

1. An injector comprising:
a container including a container wall with an interior surface, wherein the container wall defines a bore;
a seal assembly including a wall and a barrier, the wall fixedly attached to the container wall and the barrier having a cup-like shape defined by a plate and a rim, the rim disposed on the wall such that the plate is disposed exterior of the wall, the wall and barrier defining an enclosed space between the wall, the plate of the barrier, and the rim of the barrier;
a fluid delivery system comprising a container needle having a point disposed only through the barrier in a storage state such that the container needle is not in fluid communication with the bore, and disposed through the wall into the bore in a delivery state such that the container needle is in fluid communication with the bore, wherein only the container needle, the barrier, and the wall define the enclosed space in both the storage state and the delivery state;
the container needle attached to a connector, the connector mechanically coupled to the container to secure the container needle to the container with the container needle in the storage state; and
an electromechanical actuator coupled to the fluid delivery system and adapted to move the container needle from the storage state to the delivery state.

2. The injector of claim 1 , wherein the container wall at least partially defines a reservoir.

3. The injector of claim 2 , wherein the reservoir is filled with a medical fluid or drug product.

4. The injector of claim 3 , wherein the medical fluid or drug product comprises a granulocyte colony-stimulating factor (G-CSF).

5. The injector of claim 4 , wherein the G-CSF is pegylated.

6. The injector of claim 3 , wherein the medical fluid or drug product comprises: an erythropoiesis stimulating agent; a TNF blocker; a interleukin-receptor specific antibody; an IGF-receptor (Insulin Growth Factor receptor) specific antibody; a TGF-specific antibody; or a PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9)-specific antibody.

7. The injector of claim 1 , wherein the connector is press fit onto the container.

8. The injector of claim 1 , wherein the connector is a first connector of a pair of connectors, a second connector of the pair of connectors being attached to the container, the first and second of the pair of connectors mechanically coupled to secure the container needle to the container in the storage state.

9. The injector of claim 8 , wherein the first and second connectors each comprise one of a pair of facing surfaces, the facing surfaces abutting to limit movement of the first and second connectors axially along a longitudinal axis of the container needle.

10. The injector of claim 9 , wherein the first and second connectors engage to rotatably couple the pair of connectors to secure the container needle to the container in the storage state.

11. The injector of claim 8 , wherein the first connector comprises a collar disposed continuously or discontinuously about the container needle.

12. The injector of claim 1 , wherein the container wall defines an opening at a first end of the bore, and the wall defines a septum disposed across the opening and fixedly attached to the container wall.

13. The injector of claim 1 , wherein the fluid delivery system comprises sterile flexible tubing connected at a first end to the container needle and a second end to an injection needle.

14. The injector of claim 1 , wherein the barrier and the wall are fixed relative to one another to define the enclosed space therebetween.

15. The injector of claim 1 , wherein the barrier and wall of the seal assembly are formed as a single structure defining the enclosed space.

16. An injector comprising:
a container including a container wall with an interior surface, wherein the container wall defines a bore;
a seal assembly including a wall and a barrier, the wall fixedly attached to the container wall and the barrier having a cup-like shape defined by a plate and a rim, the rim disposed on the wall such that the plate is disposed exterior of the wall, the wall and barrier defining an enclosed space between the wall, the plate of the barrier, and the rim of the barrier;
a fluid delivery system comprising a container needle having a point disposed only through the barrier in a storage state such that the container needle is not in fluid communication with the bore, and disposed through the wall into the bore in a delivery state such that the container needle is in fluid communication with the bore, wherein the barrier and the wall define the enclosed space in both the storage state and the delivery state;
the container needle attached to a connector, the connector mechanically coupled to the container to secure the container needle to the container with the container needle in the storage state; and
an electromechanical actuator coupled to the fluid delivery system and adapted to move the container needle from the storage state to the delivery state,
wherein the connector is a first connector of a pair of connectors, a second connector of the pair of connectors being attached to the container, the first and second of the pair of connectors mechanically coupled to secure the container needle to the container in the storage state, and
wherein the container comprises a rim disposed about an opening, the seal assembly being disposed over the opening in the container, and the second connector comprising a rim and disposed over the seal assembly, the container further comprising a crimp ring formed about the rim of the container and the rim of the second connector with the seal assembly disposed between the rims to secure the seal assembly between the rim of the container and the rim of the second connector.

17. An injector comprising:
a container including a container wall with an interior surface, wherein the container wall defines a bore;
a seal assembly including a wall and a barrier, the wall fixedly attached to the container wall and the barrier having a cup-like shape defined by a plate and a rim, the rim disposed on the wall such that the plate is disposed exterior of the wall, the wall and barrier defining an enclosed space between the wall, the plate of the barrier, and the rim of the barrier;
a fluid delivery system comprising a container needle having a point disposed only through the barrier in a storage state such that the container needle is not in fluid communication with the bore, and disposed through the wall into the bore in a delivery state such that the container needle is in fluid communication with the bore, wherein the barrier and the wall define the enclosed space in both the storage state and the delivery state;
the container needle attached to a connector, the connector mechanically coupled to the container to secure the container needle to the container with the container needle in the storage state; and
an electromechanical actuator coupled to the fluid delivery system and adapted to move the container needle from the storage state to the delivery state,
wherein the connector is a first connector of a pair of connectors, a second connector of the pair of connectors being separate from and coupled with the container, the first and second of the pair of connectors being mechanically coupled to secure the container needle to the container with the container needle in the storage state, and
wherein the second connector is disposed entirely forwardly of the container and spaced therefrom by the seal assembly.

18. The injector of claim 17

Assignees

• Amgen Inc

Inventors

• Gibson Scott R

Classifications

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title

• A61M2202/04

  Liquids · CPC title

• A61M2005/31588

  electrically driven · CPC title

• A61M2005/247

  with fixed or steady piercing means, e.g. piercing under movement of ampoule · CPC title

• A61M5/315

  Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod {or piston}; Appliances on the rod for facilitating dosing {; Dosing mechanisms} · CPC title