EP-4739263-A1 - NEGATIVE PRESSURE WOUND THERAPY DEVICES AND METHODS

Abstract

A negative pressure wound treatment system and methods for using such a system are described. Preferred embodiments facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Some embodiments may include a wound filler conglomerate having filler material and a wound contact layer.

Inventors

• BROWNHILL, Varuni, Rachindra
• HARTWELL, EDWARD, YERBURY
• LAITENBERGER, PETER, GEORG
• MUNRO, Alfred, Charles, Percey
• PARRY, Luke, Michael
• RAWSON, Neill, John
• SABBERTON, IAIN, JAMES
• WEBSTER, IAIN

Assignees

• T.J.Smith and Nephew,Limited

Dates

Publication Date

20260513

Application Date

20240703

Claims (20)

1. 1. A wound therapy device, comprising: a plurality of modules configured to contact a wound, individual modules comprising a porous wound filler and a wound contact layer, the wound contact layer enclosing the wound filler.
2. 2. The wound therapy device of claim 1, wherein the wound filler and the wound contact layer comprise different materials.
3. 3. The wound therapy device of any one of the previous claims, wherein the wound filler material comprises foam.
4. 4. The wound therapy device of any one of the previous claims, wherein the wound contact layer comprises perforations.
5. 5. The wound therapy device of any one of the previous claims, wherein the wound contact layer comprises silicone.
6. 6. The wound therapy device of any one of the previous claims, wherein the wound contact layer comprises polyurethane.
7. 7. The wound therapy device of any one of the previous claims, wherein the wound contact layer is substantially transparent.
8. 8. The wound therapy device of any one of the previous claims, wherein the modules are removably connected to one other.
9. 9. The wound therapy device of claim Error! Reference source not found., wherein adjacent individual modules are removably connected to each other by a connection component.
10. 10. The wound therapy device of claim 9, wherein the connection component and the contact layer are monolithic.
11. 11. The wound therapy device of claim 9, wherein the connection component comprises cord.
12. 12. The wound therapy device of claim 9, wherein the connection component comprises string.
13. 13. The wound therapy device of claim 9, wherein the connection component comprises a synthetic polymer.
14. 14. The wound therapy device of claim 9, wherein the connection component comprises a plurality of collagen threads.
15. 15. The wound therapy device of any one of the previous claims, further comprising a connection configured to supply a source of negative pressure to a space beneath the wound contact layer.
16. 16. A method of treating a wound, the method comprising: applying a wound therapy device to a wound, the wound therapy device comprising a plurality of modules, individual modules comprising a wound filler enclosed by a wound contact layer, the wound filler comprising a first material and the wound contact layer comprising a second material; and applying negative pressure to a space beneath the wound contact layer.
17. 17. The method of claim 16, further comprising applying the wound therapy device to the wound in a layered configuration.
18. 18. The method of claim 16, further comprising applying the wound therapy device to the wound in a rolled configuration.
19. 19. The method of claim 16, further comprising applying the wound therapy device to the wound in a loose configuration.
20. 20. The method of claim 16, further comprising applying the wound therapy device to the wound in a folded configuration.

Description

NEGATIVE PRESSURE WOUND THERAPY DEVICES AND METHODS BACKGROUND Technical Field [0001] Embodiments described herein relate to apparatuses, systems, and methods for the treatment of wounds, for example using dressings in combination with negative pressure wound therapy. Description of the Related Art [0002] Many different types of wound dressings are known for aiding in the healing process of a human or animal. These different types of wound dressings include many different types of materials and layers, for example, gauze, pads, foam pads or multilayer wound dressings. Topical negative pressure (TNP) therapy, sometimes referred to as vacuum assisted closure, negative pressure wound therapy, or reduced pressure wound therapy, is widely recognized as a beneficial mechanism for improving the healing rate of a wound. Such therapy is applicable to a broad range of wounds such as incisional wounds, open wounds, and abdominal wounds or the like. TNP therapy assists in the closure and healing of wounds by reducing tissue edema, encouraging blood flow, stimulating the formation of granulation tissue, removing excess exudates and may reduce bacterial load. Thus, reducing infection to the wound. Furthermore, TNP therapy permits less outside disturbance of the wound and promotes more rapid healing [0003] Existing negative pressure therapy wound fillers, such as foam or gauze, may shed fibers or particulates into a wound, which can cause inflammation, redness, irritation, infection, and/or increased wound treatment time. Further, removal of foam or gauze wound filler materials may cause pain to a patient and may inadvertently cause removal of healthy granulated tissue from the wound. [0004] Further, because wounds are of different shapes and/or sizes, foam, gauze, or other wound fillers may need to be sized, shaped, layered, or otherwise prepared to better accommodate wounds. Although existing foam, gauze, or other wound fillers may be cut to certain size or shape, the adjustment may require time. Additionally, a wound may change in size or shape as negative pressure treatment is applied to the wound. [0005] Accordingly, there is a need to provide for an improved apparatus, method, and system for the treatment and closure of wounds. SUMMARY [0006] Embodiments of the present disclosure relate to materials, devices, methods, and systems for wound treatment. Some disclosed embodiments relate to materials, devices, methods, and systems for delivering negative pressure to a wound. It will be understood by one of skill in the art that application of the materials, devices, methods, and systems described herein are not limited to a particular tissue or a particular injury. [0007] In some examples, a wound therapy device may comprise a plurality of modules configured to contact a wound, individual modules comprising a porous wound filler and a wound contact layer, the wound contact layer enclosing the wound filler. The wound filler and the wound contact layer may comprise different materials. The wound filler material may comprise foam and the wound contact layer may comprise perforations. In certain examples, the wound contact layer may comprise silicone. The wound contact layer may comprise polyurethane. The wound contact layer may be substantially transparent. In some examples, the modules may be removably connected to one other. Adjacent individual modules may be removably connected to each other by a connection component. The connection component and the contact layer are may be monolithic. The connection component may comprise cord. The connection component may comprise a string and/or a synthetic polymer. In certain examples, the connection component may comprise a plurality of collagen threads. In some examples, the wound therapy device may include a connection configured to supply a source of negative pressure to a space beneath the wound contact layer. [0008] In certain examples, a method of treating a wound may comprise applying a wound therapy device to a wound, the wound therapy device comprising a plurality of modules, individual modules comprising a wound filler enclosed by a wound contact layer, the wound filler comprising a first material and the wound contact layer comprising a second material, and applying negative pressure to a space beneath the wound contact layer. In some examples, the method may involve applying the wound therapy device to the wound in a layered configuration. The method may involve applying the wound therapy device to the wound in a rolled configuration. The method may involve applying the wound therapy device to the wound in a loose and/or folded configuration. [0009] Disclosed herein are methods of operating a negative pressure wound therapy device of any of the preceding paragraphs and/or any of the devices, apparatuses, or systems disclosed herein. [0010] Disclosed herein are kits that include the negative pressure wound therapy device of any of the preceding paragraphs and/or an