MEDICAL DEVICE INCLUDING A BACTERIAL CELLULOSE SHEET, PERFORATED OR MICROPERFORATED AS A MESH

• US 20110262696A1
• Filed: 11/06/2009
• Published: 10/27/2011
• Est. Priority Date: 11/07/2008
• Status: Abandoned Application

• Current Assignee: Sofradim Production
• Original Assignee: Sofradim Production
• Inventors: Lefranc, Olivier, Gravagna, Philippe, Ladet, Sébastien, Bayon, Yves
• Application Number:
  US13/125,604
• Publication Number:
  US 20110262696A1
• Time in Patent Office: Days
• US Class Current: 428/131
• CPC Class Codes: A61F 2/0045 Support slings
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61F 2/0077 Special surfaces of prostheses, e.g. for improving ingrowth A61F2/30767 takes precedence
• CPC Class Codes: Y10T 428/24273 including aperture

Abstract

The present invention relates to a medical device comprising a bacterial cellulose sheet having perforations. The invention further relates to a method of making such a medical device.

Claims

1-19. -19. (canceled)

20. A medical device comprising a bacterial cellulose sheet having perforations.

21. The medical device of claim 20, wherein the bacterial cellulose sheet has a thickness of from about 0.1 mm to about 5 mm.

22. The medical device of claim 20, wherein the perforations comprise holes of a size from about 10 μ

m and 100 μ

m, separated from each other by a distance of from about 0.1 mm to about 3 mm.

23. The medical device of claim 20, wherein the perforations comprise holes of a size of from about 1 mm to about 3 mm, separated from each other by a distance of from about 0.3 mm to about 5 mm.

24. The medical device of claim 20, wherein the perforations comprise holes of a size of from about 10 μ

m to about 100 μ

m, separated from each other by a distance of from about 100 μ

m to about 500 μ

m.

25. A medical device of claim 20, wherein the holes are arranged in an ordered series.

26. A medical device of claim 20, wherein the bacterial cellulose sheet comprises a first area having perforations and a second area containing no perforations.

27. A medical device of claim 20, wherein the bacterial cellulose sheet comprises a first area having perforations of a first size and a second area having perforations of a second size different from the first size.

28. A medical device of claim 20, wherein the bacterial cellulose sheet comprises a first area with perforations arranged in a first pattern and a second area with perforations arranged in a second pattern different from the first pattern.

29. A medical device of claim 20, wherein the perforations are circular.

30. A method of making a medical device comprising:

providing a bacterial cellulose sheet; and

perforating the bacterial cellulose sheet.

31. The method of claim 30, wherein the bacterial cellulose sheet provided is derived from Acetobacter xylinum.

32. The method of claim 30, wherein the bacterial cellulose sheet provided comprises oxidized cellulose.

33. A method of claim 30, wherein perforating the bacterial cellulose sheet forms holes of a size of from about 10 μ

m and 100 μ

m, separated from each other by a distance of from about 0.1 mm to about 3 mm.

34. A method of claim 30, wherein perforating the bacterial cellulose sheet forms holes of a size of from about 1 mm to about 3 mm, separated from each other by a distance of from about 0.3 mm to about 5 mm,

35. A method of claim 30, wherein perforating the bacterial cellulose sheet forms holes of a defined and constant size of from about 10 μ

m to about 100 μ

m, separated from each other by a constant distance of from about 100 μ

m to about 500 μ

m.

36. A method of claim 30, wherein perforating the bacterial cellulose sheet forms an ordered series of holes.

37. A method of claim 30, wherein an area of the bacterial cellulose sheet remains imperforated.

38. A method of claim 30, wherein perforating is performed by a method selected from the group consisting of punching and laser drilling.