Combination SIS and vacuum bandage and method

• US 8,747,887 B2
• Filed: 10/03/2005
• Issued: 06/10/2014
• Est. Priority Date: 05/22/2000
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: KCI Medical Resources Unlimited Company (3M Company)
• Inventors: Coffey, Arthur C.
• Primary Examiner(s): CHANNAVAJJALA, LAKSHMI SARADA
• Application Number:
  US11/242,543
• Publication Number:
  US 20060029650A1
• Time in Patent Office: 3,172 Days
• Field of Search: None
• US Class Current: 424/447
• CPC Class Codes: A61F 13/01012 being made of natural material, e.g. cellulose-, protein-, collagen-based
• CPC Class Codes: A61F 13/02 Adhesive bandages or dressings
• CPC Class Codes: A61F 13/022 having more than one layer with different fluid retention characteristics
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• CPC Class Codes: A61F 13/0253 characterized by the adhesive material
• 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 17/00 First-aid kits
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00357 implanted wound fillings or covers
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61F 2013/00859 with macroscopic openings
• CPC Class Codes: A61F 2013/00927 with biological activity, e.g. enzymes for debriding wounds or others, collagen or growth factors
• CPC Class Codes: A61L 15/225 Mixtures of macromolecular compounds
• CPC Class Codes: A61L 15/32 Proteins, polypeptides; Degradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin A61L15/225 takes precedence
• CPC Class Codes: A61L 15/325 Collagen
• CPC Class Codes: A61L 15/40 containing ingredients of undetermined constitution or reaction products thereof , e.g. plant or animal extracts
• CPC Class Codes: A61L 15/425 Porous materials, e.g. foams or sponges
• CPC Class Codes: A61L 15/44 Medicaments
• CPC Class Codes: A61L 15/58 Adhesives
• CPC Class Codes: A61L 2300/412 : Tissue-regenerating or healing or proliferative agents
• CPC Class Codes: A61L 2430/34 : for soft tissue reconstruction
• CPC Class Codes: A61L 27/24 : Collagen
• CPC Class Codes: A61M 1/915 : Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/916 : specially adapted for deep wounds
• 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

Abstract

A wound care bandage for treating a wound is provided. The bandage includes an SIS layer to be placed on the wound surface and a cover to placed over the wound. The bandage further includes a structure to provide a vacuum space. A method for promoting wound healing is further provided. The method includes applying the above-mentioned wound care bandage to the wound and creating a vacuum in the vacuum space to draw blood controllably from the wound into the SIS layer.

Claims

1. A wound care system comprising

a vacuum source, and

a wound care bandage for use with the vacuum source, the wound care bandage comprising:

a collagen matrix which is configured to be placed by a caretaker on a wound of a patient and to integrate into the wound,

a cover configured for placement over the wound to provide a sealed environment around the wound, and

a structure for placement between the collagen matrix and the cover and configured to provide a vacuum space, the vacuum source being coupleable to the vacuum space and operable to create a negative pressure in the vacuum space, the structure being removable from the wound after integration of the collagen matrix into the wound, wherein no sutures and no staples are present in the wound care bandage to hold either the structure or the collagen matrix in place during communication of negative pressure to the vacuum space by the vacuum source;

wherein the structure comprises a ring having an aperture defined by an inner wall of the ring and wherein the vacuum space is defined by the collagen matrix, the cover, and the inner wall of the ring.

2. A method for promoting wound healing, the method comprising:

applying a first collagen matrix to a wound surface,

creating a vacuum space in communication with the wound and the first collagen matrix, including placing a structure adjacent the first collagen matrix, and

generating a vacuum within the vacuum space in a magnitude and duration sufficient to draw blood from the wound into the first collagen matrix and to facilitate integration of the first collagen matrix into the wound surface with the structure being removable from the wound after integration of the first collagen matrix into the wound, wherein no sutures and no staples are present in the wound care bandage to hold either the structure or the first collagen matrix in place during communication of negative pressure to the vacuum space by the vacuum source;

wherein the structure comprises a ring having an aperture defined by an inner wall of the ring and wherein the vacuum space is defined by the first collagen matrix, the cover, and the inner wall of the ring.