Over-Molded Seal

• US 20090243234A1
• Filed: 04/25/2008
• Published: 10/01/2009
• Est. Priority Date: 03/31/2008
• Status: Abandoned Application

• Current Assignee: Animas Corporation (Johnson & Johnson)
• Original Assignee: Animas Corporation (Johnson & Johnson)
• Inventors: Sharifi, Bahram
• Application Number:
  US12/109,642
• Publication Number:
  US 20090243234A1
• Time in Patent Office: Days
• US Class Current: 277/652
• CPC Class Codes: A61M 2005/14264 with means for compensating influence from the environment
• CPC Class Codes: A61M 2205/0238 the material being a coating or protective layer
• CPC Class Codes: A61M 2209/06 Packaging for specific medical equipment
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: H05K 5/061 sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing

Abstract

Described is a seal used in a drug delivery device. In one embodiment, a seal is provided that includes a tongue, a groove and a coating formed on at least one surface of the tongue, the groove or both the tongue and the groove. In another embodiment, a drug delivery device is provided that includes a housing having a top portion and a bottom portion, a tongue formed on the periphery of one of the top portion or bottom portion and a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue, and a coating on the surface of at least one of the groove and the tongue that creates a hermetic seal between the top portion and the bottom portion when the tongue and the groove are in contact.

Claims

1. A drug delivery device comprising:

a housing having a top portion and a bottom portion;

a tongue formed on the periphery of one of the top portion or bottom portion;

a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue and such that the housing has at least one portion including a tongue and at least one portion including a groove; and

a coating on at least one surface of the groove that creates a hermetic seal between the top portion and the bottom portion when the tongue and the groove are in contact.

2. The drug delivery device of claim 1, wherein the coating is a thermoplastic elastomer.

3. The drug delivery device of claim 1, wherein the coating is a copolymer of butadiene and acrylonitrile.

4. The drug delivery device of claim 1, wherein the coating is silicone rubber.

5. The drug delivery device of claim 1, wherein the coating is Sorbothane®

.

6. The drug delivery device of claim 1, wherein the coating is Santoprene®

.

7. The drug delivery device of claim 1, wherein the coating is neoprene.

8. The drug delivery device of claim 1, wherein the top portion comprises at least one hole that aligns with at least one hole in the bottom portion through which a fastener fits to hold the top and bottom portions together.

9. A drug delivery device comprising:

a housing having a top portion and a bottom portion;

a tongue formed on the periphery of one of the top portion or bottom portion;

a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue and such that the housing has at least one portion including a tongue and at least one portion including a groove; and

a coating on at least one surface of the tongue that creates a hermetic seal between the top portion and the bottom portion when the tongue and the groove are in contact.

10. The drug delivery device of claim 9, wherein the coating is a thermoplastic elastomer.

11. The drug delivery device of claim 9, wherein the coating is a copolymer of butadiene and acrylonitrile.

12. The drug delivery device of claim 9, wherein the coating is silicone rubber.

13. The drug delivery device of claim 9, wherein the coating is Sorbothane®

.

14. The drug delivery device of claim 9, wherein the coating is Santoprene®

.

15. The drug delivery device of claim 9, wherein the coating is neoprene.

16. The drug delivery device of claim 9, wherein the top portion comprises at least one hole that aligns with at least one hole in the bottom portion through which a fastener fits to hold the top and bottom portions together.

17. A drug delivery device comprising:

a housing having a top portion and a bottom portion;

a tongue formed on the periphery of one of the top portion or bottom portion;

a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue and such that the housing has at least one portion including a tongue and at least one portion including a groove; and

a coating on at least one surface of both the tongue and the groove that creates a hermetic seal between the top portion and the bottom portion when the tongue and the groove are in contact.

18. The drug delivery device of claim 17, wherein the coating is a thermoplastic elastomer.

19. The drug delivery device of claim 17, wherein the coating is a copolymer of butadiene and acrylonitrile.

20. The drug delivery device of claim 17, wherein the coating is silicone rubber.

21. The drug delivery device of claim 17, wherein the coating is Sorbothane®

.

22. The drug delivery device of claim 17, wherein the coating is Santoprene®

.

23. The drug delivery device of claim 17, wherein the coating is neoprene.

24. The drug delivery device of claim 17, wherein the top portion comprises at least one hole that aligns with at least one hole in the bottom portion through which a fastener fits to hold the top and bottom portions together.

25. A seal between a top portion and a bottom portion of a housing, the seal comprising:

a tongue formed on the periphery of one of the top portion or bottom portion;

a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue and such that the housing has at least one portion including a tongue and at least one portion including a groove; and

a coating on at least one surface of the groove that creates the seal between the top portion and the bottom portion when the tongue and the groove are in contact.

26. The seal of claim 25, wherein the coating is a thermoplastic elastomer.

27. The seal of claim 25, wherein the coating is a copolymer of butadiene and acrylonitrile.

28. The seal of claim 25, wherein the coating is silicone rubber.

29. The seal of claim 25, wherein the coating is Sorbothane®

.

30. The seal of claim 26, wherein the coating is Santoprene®

.

31. The seal of claim 27, wherein the coating is neoprene.

32. A seal between a top portion and a bottom portion of a housing, the seal comprising:

a tongue formed on the periphery of one of the top portion or bottom portion;

a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue and such that the housing has at least one portion including a tongue and at least one portion including a groove; and

a coating on at least one surface of the tongue that creates the seal between the top portion and the bottom portion when the tongue and the groove are in contact.

33. The seal of claim 32, wherein the coating is a thermoplastic elastomer.

34. The seal of claim 32, wherein the coating is a copolymer of butadiene and acrylonitrile.

35. The seal of claim 32, wherein the coating is silicone rubber.

36. The seal of claim 32, wherein the coating is Sorbothane®

.

37. The seal of claim 32, wherein the coating is Santoprene®

.

38. The seal of claim 32, wherein the coating is neoprene.

39. A seal between a top portion and a bottom portion of a housing, the seal comprising:

a tongue formed on the periphery of one of the top portion or bottom portion;

a groove formed on the periphery of one of the top portion or bottom portion and configured to receive the tongue and such that the housing has at least one portion including a tongue and at least one portion including a groove; and

a coating on at least one surface of both the groove and the tongue that creates the seal between the top portion and the bottom portion when the tongue and the groove are in contact.

40. The seal of claim 39, wherein the coating is a thermoplastic elastomer.

41. The seal of claim 39, wherein the coating is a copolymer of butadiene and acrylonitrile.

42. The seal of claim 39, wherein the coating is silicone rubber.

43. The seal of claim 39, wherein the coating is Sorbothane®

.

44. The seal of claim 39, wherein the coating is Santoprene®

.

45. The seal of claim 39, wherein the coating is neoprene.