Self contained wound dressing apparatus

• US 20070055209A1
• Filed: 09/06/2006
• Published: 03/08/2007
• Est. Priority Date: 09/07/2005
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Acheson, Dianne, Patel, Harish
• Application Number:
  US11/516,216
• Publication Number:
  US 20070055209A1
• Time in Patent Office: Days
• US Class Current: 604/315
• CPC Class Codes: A61F 13/00063 comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic drug delivery dressings A61K9/70; chemical aspect of the additives A61L15/00
• 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 2013/00412 for use with needles, tubes or catheters
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61F 2013/0074 containing foams
• CPC Class Codes: A61F 2013/00748 with hydrocolloids or superabsorbers wound bandages with alginate A61F2013/00229; plasters with cyano-acrylic adhesive A61F2013/00459; plasters for treating burn with hydrogel A61F2013/00523; adhesive for plasters, with hydrogel A61F2013/00676; water-based A61F2013/00689; for use on mucosae A61F2013/00714; for use on wounds A61F2013/00719; with absorbent adhesives A61F2013/00757; with fumed silica A61F2013/00787; with viscoelastic oil-elastomer gel A61F2013/00893
• CPC Class Codes: A61F 2013/0091 with disinfecting or anaesthetics means, e.g. anti-mycrobic
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/80 Suction pumps A61M1/64, A61M1/71, A61M60/00 take precedence
• CPC Class Codes: A61M 1/82 Membrane pumps, e.g. bulbs
• CPC Class Codes: A61M 1/882 Draining devices provided with means for releasing antimicrobial or gelation agents in the drained fluid
• CPC Class Codes: A61M 1/912 Connectors between dressing and drainage tube
• 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 1/966 having a pressure sensor on or near the dressing
• CPC Class Codes: A61M 1/984 portable on the body
• CPC Class Codes: A61M 2205/15 Detection of leaks
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2209/08 : Supports for equipment
• CPC Class Codes: A61M 2209/088 : on the body
• CPC Class Codes: A61M 27/00 : Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: A61P 31/04 : Antibacterial agents

Abstract

The composite wound dressing apparatus promotes healing of a wound via the use of an external peristaltic vacuum pump. The external peristaltic pump applies a vacuum pressure to the wound to effectively draw wound fluid or exudate away from the wound bed. The external peristaltic pump is tethered to the wound dressing and is portable, preferably, carried by the patient in a support bag, which permits patient mobility. Moreover, the patient does not need to be constrained for any period of time while exudate is being removed from the wound.

Claims

1. A wound dressing apparatus, which comprises:

a wound dressing member dimensioned for positioning relative to a wound bed;

a portable vacuum pump in fluid communication with the wound dressing member for applying subatmospheric pressure to facilitate removal of fluid from the wound dressing member, the vacuum pump adapted to be carried by the body of a patient; and

a collection canister carried by the body of the patient and in fluid communication with the vacuum pump for collecting fluids removed from the wound dressing member.

2. The wound dressing apparatus according to claim 1 wherein the vacuum source includes a peristaltic vacuum pump.

3. The wound dressing apparatus according to claim 2 wherein the vacuum pump is adapted to produce subatmospheric pressure ranging between about 20 mmHg and about 500 mmHg.

4. The wound dressing apparatus according to claim 1 wherein the collection canister includes an absorbent material to contain the fluid removed from the wound dressing member.

5. The wound dressing apparatus according to claim 1 including a body support bag, the body support bag adapted for mounting to the patient and having a pouch for retaining at least one of the collection canister and vacuum pump.

6. The wound dressing apparatus according to claim 1 wherein the vacuum pump includes control means to control operation thereof.

7. The wound dressing apparatus according to claim 6 including a pressure sensor adapted to detect pressure at a predetermined location relative to the wound dressing member, and send a corresponding signal to the control means.

8. The wound dressing apparatus according to claim 6 wherein the control means includes a controller adapted to control or vary the output of the vacuum source.

9. The wound dressing apparatus according to claim 1 wherein the vacuum pump includes a self-contained battery.

10. The wound dressing apparatus according to claim 1 wherein the wound dressing member includes a lower member positionable adjacent the wound bed, an upper absorbent member positionable adjacent the lower member, and a top member.

11. The wound dressing apparatus according to claim 10 wherein the upper absorbent member comprises a material selected from the group consisting of foams, nonwoven composite fabrics, cellulosic fabrics, super absorbent polymers, and combinations thereof.

12. The wound dressing apparatus according to claim 11 wherein the upper absorbent member includes at least one of a medicament, an anti-infective agent, an antimicrobial, polyhexamethylene biguanide (hereinafter, “

PHMB”

), antibiotics, analgesics, healing factors, vitamins, growth factors and nutrients.

13. A wound dressing apparatus, which comprises:

a wound dressing member dimensioned for positioning relative to a wound bed;

a portable vacuum pump in fluid communication with the wound dressing member for applying subatmospheric pressure to facilitate removal of fluid from the wound dressing member, the vacuum pump having a self contained battery for operating the vacuum pump;

a collection canister in fluid communication with the vacuum pump for collecting fluids removed from the wound dressing member; and

a body support bag attachable to the body of the patient, the body support bag including a pouch for retaining at least one of the collection canister and the vacuum pump.

14. A method for facilitating healing of a wound, comprising the steps of:

positioning a wound dressing member relative to a wound bed;

introducing a portable vacuum pump to be in fluid communication with the wound dressing member for applying subatmospheric pressure to facilitate removal of fluid from the wound dressing member;

connecting a collection canister in fluid communication with the vacuum pump for collecting fluids removed from the wound dressing member;

mounting a body support bag to the body of the patient, the body support bag including a retaining pouch; and

positioning at least one of the collection canister and the vacuum pump into the retaining pouch of the body support bag.