AUTOMATIC INJECTION DEVICE

• US 20130079718A1
• Filed: 09/21/2012
• Published: 03/28/2013
• Est. Priority Date: 09/22/2011
• Status: Active Grant

• Current Assignee: Abbvie Incorporated, Owen Mumford
• Original Assignee: Abbvie Incorporated, Owen Mumford
• Inventors: Julian, Joseph F., Li, Chuan, Wozencroft, Robert Michael, Bicknell, Stephen, Dix, Robert, Shang, Sherwin S.
• Granted Patent: US 9,408,973 B2
• Time in Patent Office: Days
• US Class Current: 604/131
• CPC Class Codes: A61M 2005/2006 Having specific accessories
• CPC Class Codes: A61M 2005/3126 Specific display means related to dosing
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/584 having a color code
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: A61M 5/2033 Spring-loaded one-shot injectors with or without automatic needle insertion multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287
• CPC Class Codes: A61M 5/31501 Means for blocking or restricting the movement of the rod or piston A61M5/5013 takes precedence
• CPC Class Codes: F04C 2270/041 Controlled or regulated

Abstract

Automatic injection device includes a housing, a syringe, a plunger, and a syringe carrier. The housing includes a barrel. The barrel includes an elongated window to allow viewing of contents inside the housing. The syringe is disposed within the housing and has a reservoir. The plunger is at least partially disposed within the syringe and includes a visual indicator. The syringe carrier is disposed within the housing and configured to contain the syringe and displace the syringe within the housing between a first position and a second position. The syringe carrier has a first opening and a second opening. The first opening is configured to align with the window and the reservoir when the syringe carrier is in the first position, and the second opening is configured to align with the window and the visual indicator when the syringe carrier is in the second position.

Claims

1. An automatic injection device comprising:

a housing having a first end, a second end, and a barrel between the first end and the second end, the barrel comprising an elongated window to allow viewing of contents inside the housing;

a syringe disposed within the housing and having a first end, a second end, and a reservoir between the first end and the second end;

a plunger at least partially disposed within the syringe and comprising a visual indicator on a portion of the plunger; and

a syringe carrier disposed within the housing and configured to contain the syringe and displace the syringe within the housing between a first position and a second position, the syringe carrier having a first opening and a second opening, the first opening configured to align with the window and the reservoir when the syringe carrier is in the first position, and the second opening configured to align with the window and the visual indicator when the syringe carrier is in the second position.

2. The automatic injection device of claim 1, wherein the elongated window has a substantially symmetrical oval shape or pill shape.

3. The automatic injection device of claim 1, the housing further comprising a beveled edge surrounding the elongated window to receive a shield.

4. The automatic injection device of claim 3, wherein the shield is configured to prevent UV radiation from entering the housing through the elongated window.

5. The automatic injection device of claim 1, further comprising a firing body having a first end and a second end, the first end of the firing body engaged to the housing proximate to the second end of the housing, the firing body comprising one or more mating tabs disposed between the first end and the second end.

6. The automatic injection device of claim 5, further comprising a cap having one or more receptacles sized and shaped to receive the one or more mating tabs of the firing body to align and prevent inadvertent removal of the cap.

7. The automatic injection device of claim 6, wherein the one or more receptacle and the one or more mating tabs are petal-shaped.

8. The automatic injection device of claim 1, the syringe carrier further comprising a middle portion between the first and second openings, the middle portion sized to resist deformation of the syringe carrier.

9. The automatic injection device of claim 1, wherein the first opening is positioned nearer to the first end of the housing than the second opening.

10. The automatic injection device of claim 1, wherein the first position is a pre-injection position.

11. The automatic injection device of claim 1, wherein the second position is a post-injection position.

12. The automatic injection device of claim 1 further comprising a cap having an outer portion, the first end of the housing configured to receive the outer portion of the cap, the outer portion of the cap comprising a cap notch, a portion of the elongated window being aligned with the cap notch when the cap receives the housing to prevent obstruction of the window.

13. The automatic injection device of claim 12, the cap further comprising an inner portion, the inner portion comprising a split hub projecting beyond the outer portion, the split hub defining a hub opening, the hub opening being aligned with at least a portion of the elongated window when the cap receives the housing to prevent obstruction of the window.

14. The automatic injection device of claim 13, the inner portion of the cap further comprising a circumferential ridge.

15. The automatic injection device of claim 14, further comprising a needle projecting from the first end of the syringe and a needle shield surrounding a portion of the needle, wherein the circumferential ridge is configured to secure the needle shield within the inner portion of the cap.

16. The automatic injection device of claim 15, wherein the needle shield is retained in the inner portion of the cap when the cap is removed from the housing.

17. The automatic injection device of claim 12, wherein the cap comprises an inner radial groove, an outer radial groove and a radial wall between the inner radial groove and the outer radial groove.

18. The automatic injection device of claim 17, wherein the radial wall comprises two or more arcuate wall segments.

19. The automatic injection device of claim 1, further comprising a shroud at least partially disposed within the housing, a portion of the shroud disposed within the housing having a shroud notch, the shroud notch being aligned with at least a portion of the elongated window to prevent obstruction of the window.

20. The automatic injection device of claim 1, further comprising a first cap disposed proximate a first end of the device and a second cap disposed proximate a second end of the device, the first cap and the second cap each having one or more indicium to indicate a stage of a removal sequence or a removal direction, the one or more indicium having a highlighted color or a contrasting color compared to the corresponding cap.

21. The automatic injection device of claim 1, further comprising a liquid therapeutic agent in the reservoir.

22. The automatic injection device of claim 21, wherein the liquid therapeutic agent comprises a protein.

23. The automatic injection device of claim 21, wherein the liquid therapeutic agent comprises adalimumab.