Vented vacuum bandage with irrigation for wound healing and method

• US 7,896,864 B2
• Filed: 03/12/2007
• Issued: 03/01/2011
• Est. Priority Date: 12/26/2001
• Status: Expired due to Fees

• Current Assignee: KCI Licensing Incorporated (3M Company)
• Original Assignee: KCI Medical Resources Unlimited Company (3M Company)
• Inventors: Lockwood, Jeffrey S., Petrosenko, Robert
• Primary Examiner(s): Zalukaeva; Tatyana
• Assistant Examiner(s): Craig; Paula L
• Application Number:
  US11/684,989
• Publication Number:
  US 20070156104A1
• Time in Patent Office: 1,450 Days
• Field of Search: 604/35, 604/305, 604/30, 604/45, 604/541, 604/543
• US Class Current: 604/541
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/90 Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
• CPC Class Codes: A61M 1/92 with liquid supply means
• CPC Class Codes: A61M 1/964 having venting means on or near the dressing
• CPC Class Codes: A61M 2039/1077 Adapters, e.g. couplings adapting a connector to one or several other connectors
• CPC Class Codes: A61M 2039/1083 having a plurality of female connectors, e.g. Luer connectors
• CPC Class Codes: A61M 2039/1088 having a plurality of male connectors, e.g. Luer connectors
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 39/105 Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes multi-channel connectors in general F16L37/56
• CPC Class Codes: A61M 39/223 Multiway valves

Abstract

A vacuum and irrigation wound bandage system is provided for use with a wound. The system includes a vacuum source, an irrigation source, and a bandage positioned adjacent the wound to create a sealed environment around the wound. The vacuum source of the system is in communication with the bandage to create negative pressure between the bandage and the wound.

Claims

1. A vacuum and irrigation wound bandage system for use with a wound having a wound surface, the system comprising:

a vacuum source,

an irrigation source,

a connector coupled to the vacuum source and the irrigation source, the connector defining a first passageway and a second passageway,

a bandage including (i) a wound dressing having a wound contacting surface adapted to be in contact with and generally conform to the wound surface and (ii) a cover positioned over the wound dressing and configured to seal to the patient'"'"'s healthy skin surrounding the wound to create a vacuum space between the cover and the wound surface, and

a multi-lumen tube having a first end in communication with the vacuum space and a second end coupled to the connector, the multi-lumen tube includes a central lumen in communication with the vacuum source such that fluid may move from the vacuum space to the vacuum source and at least four peripheral lumens each filled with air during operation of the vacuum and irrigation sources,

wherein the central lumen couples with the connector such that the central lumen is in fluid communication with the first passageway, and the at least four peripheral lumens couple with the connector such that the at least four peripheral lumens are in fluid communication with each other through the connector and with the surrounding atmosphere through the second passageway.

2. The system of claim 1, wherein the cover is positioned over and seals around at least a portion of the multi-lumen tube.

3. The system of claim 1, further comprising a filter coupled to the connector for communication with the plurality of at least four peripheral lumens.

4. The vacuum bandage of claim 1, wherein the wound dressing includes a plurality of interconnected passageways formed therein and the central lumen is in communication with the passageways.

5. The system of claim 1, wherein the diameter of the central lumen is greater than the diameter of each of the peripheral lumens.

6. The system of claim 5, wherein the multi-lumen tube is generally circular in shape when viewed in cross-section.

7. The system of claim 1, further comprising a second connector in communication with the vacuum space, wherein the first end of the multi-lumen tube is coupled to the connector.

8. The system of claim 7, wherein the second connector includes a single lumen in communication with a central lumen of the multi-lumen tube.

9. A vacuum and irrigation wound bandage system for the treatment of a wound having a wound surface, the system comprising:

a vacuum source,

an irrigation source,

a bandage having (i) a wound dressing including a wound contacting surface adapted to be in contact with and generally conform to the wound surface and (ii) a cover positioned over the wound dressing and configured to seal to the patient'"'"'s healthy skin surrounding the wound to create a vacuum space between the cover and the wound surface,

a first passageway between the vacuum source and the vacuum space,

a second passageway between the irrigation source and the vacuum space,

a multi-lumen tube including a first lumen and a second lumen, and

a valve having a vent in communication with the surrounding atmosphere, the valve coupled to the multi-lumen tube and configured such that when the valve is in a first position the first lumen defines at least a portion of the first passageway and communication is substantially prevented through the valve between the second lumen and the vent, and when the valve is in a second position the first lumen defines at least a portion of the second passageway and communication is permitted through the valve between the second lumen and the vent.

10. The system of claim 9, wherein the valve is further configured such that when the valve is in a third position the first lumen defines at least a portion of the first passageway and communication is substantially permitted through the valve between the second lumen and the vent.

11. The system of claim 9, wherein the first lumen is a central lumen and the multi-lumen tube further includes a plurality of peripheral lumens each in communication with the vacuum space.

12. The system of claim 9, where the valve comprises a body and an inner barrel rotatably received in the body.

13. The system of claim 9, wherein the valve includes a vacuum connector coupled to the vacuum source, an irrigation connector coupled to the irrigation source, and a multi-lumen connector coupled to the multi-lumen tube.

14. The system of claim 9, further comprising a filter coupled to the vent.

15. A vacuum and irrigation bandage connectable to a vacuum source and an irrigation source and provided for use with a wound having a wound surface, the bandage comprising:

a wound dressing having a wound contacting surface adapted to be in contact with and generally conform to the wound surface,

a cover positioned over the wound dressing and configured to seal to the patient'"'"'s healthy skin surrounding the wound to create a vacuum space between the cover and the wound surface,

a multi-lumen tube having (i) a first lumen configured for communication with both the vacuum space and the vacuum source, (ii) a second lumen configured for communication with both the vacuum space and the atmosphere surrounding the bandage, and (iii) a third lumen configured for communication with both the vacuum space and the irrigation source,

a switch valve coupled to at least the first and third lumens of the multi-lumen tube and configured such that the switch valve is actuatable to (i) permit communication through the valve between the first lumen and the vacuum source while preventing communication through the valve between the third lumen and the irrigation source, and (ii) permit communication through the valve between the third lumen and the irrigation source while preventing communication through the valve between the first lumen and the vacuum source, and

a filter coupled to the second lumen.