ADHESIVE SYSTEM FOR MEDICAL DEVICES

• US 20010056262A1
• Filed: 05/20/1999
• Published: 12/27/2001
• Est. Priority Date: 05/21/1998
• Status: Active Grant

• Current Assignee: Elan Pharma International Limited (Perrigo Company PLC)
• Original Assignee: Elan Pharma International Limited (Perrigo Company PLC)
• Inventors: DANON, HAIM, CABIRI, OZ, TSALS, IZRAIL, KATZ, DAVID, ETHEREDGE, ROBERT, GROSS, JOSEPH, BRODEUR, CRAIG, ROZANOWICH, MARIO
• Granted Patent: US 6,585,707 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61M 2025/0253 where the catheter is attached by straps, bands or the like secured by adhesives
• CPC Class Codes: A61M 2025/0266 using pads, patches, tapes or the like
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 5/14248 of the skin patch type

Abstract

A system adapted to be disposed between a rigid or semi-rigid device and human skin for reliably attaching the device to the skin for an extended period of time. The system includes a skin-contacting surface for adhering to human skin, and an opposed surface for attachment to a rigid or semi-rigid device. The system is attached along its opposed surface to a portion of the total area of the adjacent surface of the device. When the device is subjected to external stress, the stress is transmitted through the area of attachment and distributed to the unattached area. This minimises stress on the skin and reduces the chance of detachment from the skin.

Claims

1. A system adapted to be disposed between a rigid or semi-rigid device and human skin for reliably attaching the device to the skin for an extended period of time, the system comprising:

a skin-contacting surface for adhering to human skin; and

an opposed surface for attachment to a rigid or semi-rigid device over a portion of the total area of the adjacent surface of the device, thereby minimising stress on the skin and reducing the chance of detachment from the skin.

2. The system of

claim 1

wherein when the device is subject to external stress, the stress is transmitted through the area of attachment and distributed to the unattached area.

3. The system according to

claim 1

, wherein the system comprises a structure which is a laminar element.

4. The system according to

claim 3

, wherein the laminar element has a skin contacting surface.

5. The system according to

claim 1

, wherein the system extends beyond the adjacent surface of the device.

6. The system according to

claim 1

, wherein each area attached to the skin is located towards the centre of the system so as to allow for flexibility towards the periphery thereof.

7. The system according to

claim 1

, wherein the skin contacting surface comprises a pressure sensitive adhesive.

8. The system according to

claim 1

, wherein the system comprises a carrier element having viscoelastic properties approaching those of skin.

9. The system according to

claim 1

, wherein the system is attached to the adjacent surface of the device at a number of discrete areas.

10. The system according to

claim 9

, wherein the areas of attachment are arranged at the apices of a triangular area.

11. The system according to

claim 1

, which is permanently attached to the adjacent surface of the device at each area of attachment.

12. The A system according to

claim 1

, which is detachable from the device.

13. The system according to

claim 12

, which is attached to the device by means of the co-operating elements of a fastening system located on the adjacent surface of the device and the opposed surface of the system, respectively.

14. The system according to

claim 1

, wherein the device is provided with a relief cavity which can accommodate deflection of the skin in use which would otherwise result in higher stress and a detachment thereof.

15. The system according to

claim 14

, wherein the relief cavity is a concave area in the adjacent surface of the device.

16. The system according to

claim 14

, wherein the device is provided with an integral needle for delivery of a substance through the skin.

17. The system according to

claim 16

, wherein a flexible area is provided at the locus where the needle penetrates the system for access to the skin.

18. The system according to

claim 1

, wherein one area of attachment is provided with an extension to the periphery of the system which facilitates removal of the device when required.

37. The device according to

claim 16

wherein the device includes a drug reservoir located proximate to the skin surface, whereby the temperature change of the drug is minimized.

19. A method for reliably attaching a rigid or semi-rigid device to human skin for an extended period of time, comprising the steps of:

providing a system having a skin-contacting surface for adhering to human skin and an opposed surface for attachment to a rigid or semi-rigid device;

attaching the opposed surface to a portion of the total area of the adjacent surface of the rigid or semi-rigid device; and

attaching the skin-contacting surface to the skin, thereby minimising stress on the skin and reducing the chance of detachment from the skin.

20. The method of

claim 19

wherein when the device is subject to external stress, the stress is transmitted through the area of attachment and distributed to the unattached area.

21. The method of

claim 19

, wherein the system comprises a structure which is a laminar element.

22. The method according to

claim 21

, wherein the laminar element has a skin contacting surface.

23. The method according to

claim 19

, wherein the system extends beyond the adjacent surface of the device.

24. The method according to

claim 19

, wherein each area attached to the skin is located towards the centre of the system so as to allow for flexibility towards the periphery thereof.

25. The method according to

claim 19

, wherein the skin contacting surface comprises a pressure sensitive adhesive.

26. The method according to

claim 19

, wherein the system comprises a carrier element having viscoelastic properties approaching those of skin.

27. The method according to

claim 19

, wherein the attachment to the adjacent surface of the device occurs at a number of discrete areas.

28. The method according to

claim 27

, wherein the areas of attachment are arranged at the apices of a triangular area.

29. The method according to

claim 19

, wherein the attachment of the system to the device is permanent.

30. The method according to

claim 19

, wherein the system is detachable from the device.

31. The method according to

claim 30

, wherein the attachment of the system to the device is accomplished by locating co-operating elements of a fastening system on the adjacent surface of the device and the opposed face of the system, respectively.

32. The method according to

claim 19

, wherein the device is provided with a relief cavity which can accommodate deflection of the skin in use which would otherwise result in higher stress and a detachment thereof.

33. The method according to

claim 32

, wherein the relief cavity is a concave area in the adjacent surface of the device.

34. The method according to

claim 32

, wherein the device is provided with an integral needle for delivery of a substance through the skin.

35. The method according to

claim 34

, wherein a flexible area is provided at the locus where the needle penetrates the system for access to the skin.

36. The method according to

claim 19

further comprising the step of providing an extension to the periphery of the system which facilitates removal of the device when required.

38. The method of

claim 34

wherein the device includes a drug reservoir located proximate to the skin surface, whereby the temperature change of the drug is minimized.

39. The method of

claim 34

further comprising the step of locating a drug reservoir proximate to the skin surface thereby minimizing the temperature flux of drug.