REDUCED-PRESSURE SYSTEMS AND METHODS EMPLOYING A LEAK-DETECTION MEMBER

• US 20170224890A1
• Filed: 03/03/2017
• Published: 08/10/2017
• Est. Priority Date: 09/14/2011
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: KCI Licensing Incorporated (3M Company)
• Inventors: ROBINSON, Timothy Mark, LONG, Justin Alexander, TOUT, Aidan Marcus, LOCKE, Christopher Brian
• Granted Patent: US 11,045,593 B2
• Time in Patent Office: Days
• CPC Class Codes: A61F 13/0206 with absorbent fibrous layers, e.g. woven or non-woven absorbent pads or island dressings
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/00795 special helping devices
• CPC Class Codes: A61F 2013/00846 with transparent or translucent part
• CPC Class Codes: A61F 2013/00885 impervious, i.e. occlusive bandage
• CPC Class Codes: A61F 2013/0094 for sensing physical parameters plasters for conducting test A61F2013/00429
• CPC Class Codes: A61F 2013/00948 Ph, e.g. acid
• CPC Class Codes: A61F 2013/0097 oxygen content
• CPC Class Codes: A61H 7/001 without substantial movement between the skin and the device
• CPC Class Codes: A61M 1/962 having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction
• CPC Class Codes: A61M 2205/0216 Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
• CPC Class Codes: A61M 2205/15 Detection of leaks
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/3324 PH measuring means
• CPC Class Codes: A61M 2205/6081 Colour codes
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production

Abstract

Systems, methods, and apparatus are provided for detecting leaks in systems for treating a patient with reduced pressure. In one instance, a system includes a distribution manifold for disposing proximate to the tissue site and a sealing member for disposing over the distribution manifold and at least a portion of intact epidermis of the patient. The sealing member has at least a portion that is substantially transparent. The system further includes a reduced-pressure source associated with the distribution manifold for providing reduced pressure to the distribution manifold and a leak-detection member sized and configured to substantially surround the distribution manifold. The leak-detection member includes a detection material that develops a color contrast when a portion is exposed to air and a portion is not exposed to air. The leak detection member works with even low flow systems. Other systems, methods, and apparatus are presented.

Claims

1-28. -28. (canceled)

29. A system for treating a tissue site, the system comprising:

a manifold for disposing proximate to the tissue site;

a sealing member for disposing over the manifold and at least a portion of intact epidermis, the sealing member configured to have an entry point;

a ring of hydrophilic adhesive disposed between the sealing member and at least one of the manifold and the portion of intact epidermis, the ring of hydrophilic adhesive surrounding the entry point and configured to develop a color contrast in response to a leak; and

a reduced-pressure source configured to be fluidly coupled to the manifold through the entry point.

30. The system of claim 29, wherein the ring of hydrophilic adhesive is coupled to the sealing member.

31. The system of claim 29, wherein the ring of hydrophilic adhesive comprises a first ring of hydrophilic adhesive, the system further comprising a second ring of hydrophilic adhesive surrounding the first ring of hydrophilic adhesive and configured to develop a color contrast in response to a leak.

32. The system of claim 31, wherein the second ring of hydrophilic adhesive is concentric with the first ring of hydrophilic adhesive.

33. The system of claim 31, wherein the first ring of hydrophilic adhesive, the second ring of hydrophilic adhesive, and the entry point are concentric.

34. The system of claim 29, wherein the ring of hydrophilic adhesive comprises a hydrophilic adhesive formed in a first pattern, the first pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around the entry point, each rectangular deposit having a short edge and a long edge, the short edge proximate to the entry point.

35. The system of claim 34, wherein the short edge of each rectangular deposit comprises interior corners, each interior corner adjacent to an interior corner of an adjacent rectangular deposit.

36. The system of claim 29, wherein the ring of hydrophilic adhesive comprises a first ring of hydrophilic adhesive formed in a first pattern, the first pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around the entry point, each rectangular deposit having a short edge proximate to the entry point, and the system further comprising a second ring of hydrophilic adhesive surrounding the first ring of hydrophilic adhesive, the second ring of hydrophilic adhesive formed in a second pattern, the second pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around the first ring of hydrophilic adhesive, each rectangular deposit having a short edge proximate to the first ring of hydrophilic adhesive.

37. The system of claim 36, wherein the short edge of each rectangular deposit comprises interior corners, each interior corner adjacent to an interior corner of an adjacent rectangular deposit.

38. A drape for disposing over a distribution manifold and at least a portion of intact epidermis to form a sealed space, the drape comprising:

a film, the film being substantially transparent and configured to have an entry point;

a first annulus of hydrophilic adhesive coupled to the film and configured to develop a color contrast in response to a leak; and

a second annulus of hydrophilic adhesive coupled to the film and configured to develop a color contrast in response to a leak, the second annulus of hydrophilic adhesive surrounding the first annulus of hydrophilic adhesive.

39. The drape of claim 38, wherein the second annulus of hydrophilic adhesive is concentric with the first annulus of hydrophilic adhesive.

40. The drape of claim 38, wherein the first annulus of hydrophilic adhesive, the second annulus of hydrophilic adhesive, and the entry point are concentric.

41. The drape of claim 38, wherein the first annulus of hydrophilic adhesive comprises a hydrophilic adhesive formed in a first pattern, the first pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around the entry point, each rectangular deposit having a short edge, a long edge, the short edge proximate to the entry point.

42. The drape of claim 41, wherein the short edge of each rectangular deposit comprises interior corners, each interior corner adjacent to an interior corner of an adjacent rectangular deposit.

43. The drape of claim 41, wherein the second annulus of hydrophilic adhesive comprises a hydrophilic adhesive formed in a second pattern, the second pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around the first annulus of hydrophilic adhesive, each rectangular deposit having a short edge proximate to the first annulus of hydrophilic adhesive.

44. The drape of claim 43, wherein the short edge of each rectangular deposit comprises interior corners, each interior corner adjacent to an interior corner of an adjacent rectangular deposit.

45. A method of manufacturing a sealing member for treating a tissue site, the method comprising:

providing a film, the film being substantially transparent;

coupling a first ring of hydrophilic adhesive to the sealing member; and

coupling a second ring of hydrophilic adhesive to the sealing member, the second ring of hydrophilic adhesive surrounding the first ring of hydrophilic adhesive.

46. The method of claim 45, wherein the method further comprises disposing the second ring of hydrophilic adhesive concentric with the first ring of hydrophilic adhesive.

47. The method of claim 45, wherein the method further comprises forming the first ring of hydrophilic adhesive comprises a hydrophilic adhesive in a first pattern, the first pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around an entry point, each rectangular deposit having a short edge proximate to the entry point.

48. The method of claim 47, wherein the short edge of each rectangular deposit comprises interior corners, each interior corner adjacent to an interior corner of an adjacent rectangular deposit.

49. The method of claim 45, wherein the method further comprises disposing the first ring of hydrophilic adhesive in a first pattern, the first pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around an entry point, each rectangular deposit having a short edge proximate to an entry point, and disposing the second ring of hydrophilic adhesive in a second pattern, the second pattern comprising a plurality of rectangular deposits of hydrophilic adhesive disposed circumferentially around the first ring of hydrophilic adhesive, each rectangular deposit having a short edge proximate to the first ring of hydrophilic adhesive.

50. The method of claim 49, wherein the short edge of each rectangular deposit comprises interior corners, each interior corner adjacent to an interior corner of an adjacent rectangular deposit.