Advanced Multi-Layered Wound Dressing for Healing

Introduction

This advanced multi-layered wound dressing technology provides a superior solution for managing wounds, offering optimal protection while promoting faster healing. By combining multiple layers, each designed to address specific stages of the healing process, the dressing ensures that wounds are shielded from external contaminants, remain moist for optimal healing, and receive the necessary oxygen and nutrients for tissue regeneration. For companies in the medical devices and wound care industries, this technology offers a game-changing solution that improves patient outcomes and sets a new standard in wound management.

The Challenge: Ensuring Effective Wound Care

Wound care is a critical aspect of healthcare, especially in post-surgical, chronic, and trauma-related injuries. Traditional wound dressings often fail to provide the necessary protection or moisture balance needed for optimal healing, leading to slower recovery times and increased risk of infection. Healthcare providers need more advanced solutions that address these issues by offering comprehensive protection, moisture control, and a conducive environment for tissue repair. As patient care standards rise, there is a growing demand for innovative wound dressings that promote faster, safer, and more efficient healing.

Multi-Layered Dressing for Complete Wound Care

This multi-layered wound dressing technology addresses the key challenges of wound management by offering a dressing that is both protective and healing-oriented. The top layer provides a barrier against contaminants and bacteria, while the inner layers maintain an optimal moisture balance, allowing the wound to breathe while staying protected. The technology’s unique structure supports the wound during all stages of healing, from inflammation to tissue formation and repair. The dressing is also easy to apply and comfortable for patients, reducing the need for frequent changes and minimizing disruption to the healing process.

Key Benefits for Wound Care Providers and Manufacturers

For wound care product manufacturers, this multi-layered dressing offers a significant advancement in product design, meeting the demand for more effective and patient-friendly wound care solutions. Hospitals, clinics, and healthcare providers can integrate this dressing into their wound management protocols to improve recovery times, reduce the risk of infection, and enhance patient comfort. The dressing is particularly useful in post-surgical care, chronic wound management, and trauma care, making it a versatile tool for healthcare professionals dedicated to improving patient outcomes.

Invest in Next-Level Wound Healing Solutions

Licensing this multi-layered wound dressing technology provides your company with an opportunity to lead in the growing field of advanced wound care. By offering a dressing that enhances protection, accelerates healing, and improves patient comfort, your business can meet the increasing demand for innovative wound care products. This technology represents a valuable investment for companies focused on delivering high-performance medical solutions that prioritize patient recovery and safety.

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Abstract
Claims

A multi-layered wound dressing including a fibrous absorbent layer for absorbing exudate from a wound site. The wound dressing also includes a support layer configured to reduce shrinkage of at least a portion of the wound dressing.

The invention claimed is:

1. A multi-layered wound dressing comprising:

a fibrous absorbent layer for absorbing exudate from a wound site;

a support layer configured to reduce shrinkage of at least a portion of the multi-layered wound dressing; and

a liquid impermeable film layer,

wherein the support layer is located between the absorbent layer and the film layer, and

wherein the support layer has a tensile strength from 0.05 to 0.06 Nm.

2. A multi-layered wound dressing according to claim 1, wherein the support layer comprises a net.

3. A multi-layered wound dressing according to claim 2, wherein the net comprises a geometric structure having a plurality of substantially geometric apertures extending therethrough.

4. A multi-layered wound dressing according to claim 3, wherein the geometric structure comprises a plurality of bosses substantially evenly spaced and joined by polymer strands to form the plurality of substantially geometric apertures between the polymer strands.

5. A multi-layered wound dressing according to claim 4, wherein the geometric structure of the net comprises a hexagonal structure, and wherein the plurality of substantially geometric apertures have triangular shape.

6. A multi-layered wound dressing according to claim 5, wherein a boss of the plurality of bosses form a vertex of the hexagonal structure with polymer strands extending from the boss and connecting the boss to neighboring bosses, and wherein the plurality of substantially geometric apertures are formed between neighboring polymer strands.

7. A multi-layered wound dressing according to claim 2, wherein the net is formed from high density polyethylene.

8. A multi-layered wound dressing according to claim 3, wherein the plurality of substantially geometric apertures have an area from 0.005 to 0.32 mm².

9. A multi-layered wound dressing according to claim 1, wherein the support layer has a thickness of from 50 to 150 μm.

10. A multi-layered wound dressing according to claim 1, wherein the support layer is located directly adjacent the absorbent layer.

11. A multi-layered wound dressing according to claim 1, wherein the support layer is bonded to fibres in a top surface of the absorbent layer.

12. A multi-layered wound dressing according to claim 11, wherein the support layer further comprises a bonding layer, wherein the support layer is heat laminated to the fibres in the absorbent layer via the bonding layer.

13. A multi-layered wound dressing according to claim 12, wherein the bonding layer comprises a low melting point ethylene-vinyl acetate adhesive, and wherein the support layer comprises a net formed from a material with a higher melting temperature than that of the bonding layer.

14. A multi-layered wound dressing according to claim 1, further comprising an adhesive layer attaching the film layer to the support layer.

15. A multi-layered wound dressing according to claim 1, further comprising a wound contact layer located adjacent the absorbent layer for positioning adjacent a wound.

16. A multi-layered wound dressing according claim 15, further comprising a fluid transport layer between the wound contact layer and the absorbent layer for transporting exudate away from a wound into the absorbent layer.

17. A method of treating a wound comprising placing a multi-layered wound dressing according to claim 1 over a wound.

18. A method of manufacturing a multi-layered wound dressing, the method comprising:

forming a support layer that comprises a net layer and a bonding layer by coextruding the net layer and the bonding layer;

forming a fibrous absorbent layer for absorbing exudate from a wound site; and

laminating the support layer and the absorbent layer together to form the wound dressing by attaching the bonding layer to the absorbent layer;

wherein the support layer is configured to reduce shrinkage of at least a portion of the multi-layered wound dressing, and

wherein the support layer has a tensile strength from 0.05 to 0.06 Nm.

19. A method according to claim 18, wherein the bonding layer is formed from a polymer with a first melting temperature and the net layer is formed from a material with a second melting temperature higher than the first melting temperature of the polymer of the bonding layer, and wherein laminating the support layer and the absorbent layer comprises laminating by using heat so that the net layer maintains its structure during application of heat.

20. A method according to claim 18, further comprising heat laminating the support layer to fibres in the absorbent layer via the bonding layer, wherein the bonding layer comprises a low melting point ethylene-vinyl acetate adhesive, and wherein the support layer comprises a net formed from a material with a higher melting temperature than that of the bonding layer.

Title

Multi-layered wound dressing and method of manufacture

Inventor(s)

Daniel Lee Steward, Emma Cole, Hannah Bailey Sidebottom, Neil Patrick

Assignee(s)

Smith and Nephew PLC, TJ Smith and Nephew Ltd

Patent #

11559437

Patent Date

January 24, 2023