ADHESIVE STRUCTURE FOR MEDICAL DEVICE

• US 20140128815A1
• Filed: 11/02/2012
• Published: 05/08/2014
• Est. Priority Date: 11/02/2012
• Status: Active Grant

• Current Assignee: West Pharma. Services IL, Ltd. (West Pharmaceutical Services Incorporated)
• Original Assignee: Medimop Medical Projects Ltd. (West Pharmaceutical Services Incorporated)
• Inventors: CABIRI, Oz, FILMAN, Reuven Y., DEGTIAR, Boris
• Granted Patent: US 10,071,198 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2205/13 with means for the detection of operative contact with patient, e.g. lip sensor
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

A variable flexibility adhesive system may adhere a surface of a medical infusion device to the skin of a user. The system may be configured to hold a location on the surface stationary with respect to a site on the user'"'"'s skin. The system may include an adhesive substrate for adhering to the user and an interface where the substrate is held to the surface of the device. The interface may totally and/or partially surround the stationary location. A skirt of the substrate may totally and/or partially surround the interface. Parts of the skirt may be stiffened. Optional features may include tabs for activation of the adhesive and/or a location for peeling the infuser to away from the skin. Additionally or alternatively, the interface may have variable flexibility. Additionally or alternatively, the stiffener may include a plastic layer.

Claims

1. A system for anchoring a location on a surface of a medical infusion device to the skin of a user the system comprising:

an adhesive substrate for adhering to the skin of the user;

an interface attaching a portion of said substrate to the surface of the device and

wherein said substrate includes a skirt extending beyond said interface, said skirt flexibly attached to said interface, and

a stiffener stiffening a portion of said skirt, said stiffener being less flexible than said substrate.

2. The system of claim 1, wherein said stiffener inhibits folding of said skirt under an out of plane bending force.

3. The system of claim 2, wherein said out of plane bending force includes gravity.

4. The system of claim 3, wherein said stiffener suspends said skirt against a gravity force.

5. The system of claim 3, wherein said stiffener is biased away from a skin attaching surface of said substrate.

8. The system of claim 1, further including:

an adhesive cover, and

a tab for peeling said adhesive cover from said substrate and

wherein said stiffener supports said substrate adjacent to said tab, supplying an opposing force when peeling said cover away from said substrate.

9. The system of claim 8, wherein said tab is located on said skirt.

10. The system of claim 8, wherein said stiffener is stiff enough to resist a force on said substrate caused by peeling of said cover.

11. The system of claim 1, further including:

a start location for removal of the system from the user and

wherein said stiffener extends along a peeling line to said start location, facilitating removing of said adhesive substrate from the user'"'"'s skin.

12. The system of claim 11, wherein said start location is on said skirt.

13. The system of claim 11, wherein said stiffener includes a sharp turn between said peeling line and said interface.

17. The system of claim 1, wherein said stiffener interposes between at least a part of the surface and a remaining portion of said substrate.

18. The system of claim 1, wherein said stiffener extends beyond a boundary of said surface.

19. The system of claim 1, wherein said substrate extends beyond a boundary of said stiffener.

20. The system of claim 1, wherein said substrate, is divided into a plurality of discrete portions and wherein each of said portions is joined to a separate respective subsurface of said surface.

21. The system of claim 1, wherein a portion of said stiffener interposes between said interface and said substrate.

23. The system of claim 1, wherein said interface surrounds the location on at least two sides.

26. The system of claim 1, wherein said substrate interposes between said stiffener and said interface.

27. The system of claim 1, wherein said stiffener includes one or more ribs extending from said interface toward an edge of said substrate.

28. The system of claim 1, wherein an unbacked section of said substrate is surrounded on at least two sides by said stiffener.

29. The system of claim 1, where said stiffener is attached to the surface of the device and said substrate is affixed to said stiffener.

30. The system of claim 1, wherein an unbacked skirt of said substrate surrounds the surface on at least two sides.

33. The system of claim 1, wherein said substrate is not directly attached to said surface.

6-7. -7. (canceled)

14-16. -16. (canceled)

22. (canceled)

24-25. -25. (canceled)

31-32. -32. (canceled)

34-39. -39. (canceled)

40. A system for anchoring a location on a surface of a medical infusion device to the skin of a user the system comprising:

a flexible adhesive substrate for adhering to the skin of the user, and

an interface attaching said substrate to the surface of the device and wherein said interface includes

at least one relatively flexible region and

at least one less flexible region.

41. The system of claim 40, wherein said interface is attached to a portion of said substrate.

42. The system of claim 40, further comprising:

a stiffener affixed to an unattached portion of said substrate.

43. The system of claim 42, further including:

an adhesive cover, and

a tab for peeling said cover from said substrate and

wherein said stiffener supports said substrate adjacent to said tab, supplying an opposing force when peeling said cover away from said substrate.

44. The system of claim 42, further including:

a start location for removal of the system from the user and

wherein said stiffener extends along a peeling line to said start location, facilitating removing of said adhesive from the user'"'"'s skin.

45. A system for anchoring a medical infusion device to a skin of a recipient, the system comprising:

an adhesive substrate configured for adhering to the skin of the user;

an adhesive cover including a first part and a second part;

a first tab for peeling said first part, and

a second tab for peeling said second part and wherein said first tab is located beside said second tab and separated from said second tab by a notch.