USPTO Patent Application: Negative Pressure Wound Therapy Dressing

ChangeBridge: Patent Apps - Medical Devices (A61M)

Published March 26th, 2026

Detected March 26th, 2026

Summary

The USPTO has published a patent application (US20260083897A1) for a dressing designed for negative pressure wound therapy. The application, assigned to PAUL HARTMANN AG, details a dressing with specific structural features to improve exudate distribution.

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What changed

This document is a USPTO patent application (US20260083897A1) for a novel dressing intended for use in negative pressure wound therapy. The application, filed by PAUL HARTMANN AG, describes a dressing comprising a wound contact layer, an air-impermeable top layer, and a distribution layer designed to effectively manage and distribute wound exudate across the dressing surface. Key features include a flat material web portion with integral elevations and cohesive intermediate spaces to enhance exudate distribution in both X and Y surface directions.

As this is a patent application, it does not impose immediate regulatory requirements or compliance deadlines on regulated entities. However, it signifies potential future innovation and market developments in the field of wound care devices. Companies involved in medical device manufacturing or wound therapy should monitor patent filings in this area for competitive intelligence and potential licensing opportunities.

Source document (simplified)

← USPTO Patent Applications

DRESSING FOR USE IN THE NEGATIVE PRESSURE THERAPY OF WOUNDS, NEGATIVE PRESSURE WOUND THERAPY KIT, AND NEGATIVE PRESSURE WOUND THERAPY SYSTEM

Application US20260083897A1 Kind: A1 Mar 26, 2026

Assignee

PAUL HARTMANN AG

Inventors

Martin DEIBLER

Abstract

The invention relates to a dressing (16) for use in the negative pressure therapy of wounds, having: a wound contact layer (28); an air-impermeable top layer (34), wherein a receiving space (36) is formed between the top layer and the wound contact layer, wherein the wound contact layer is designed such that it is liquid-permeable and draws wound exudate from the wound into the receiving space, and wherein a connection opening (26) is formed in the top layer; and at least one distribution layer (50) arranged in the receiving space, wherein the distribution layer extends in two surface directions (X, Y) and is designed to distribute wound exudate in the surface directions. According to the invention, the distribution layer is formed by a flat material web portion (52), a first side (56) of the flat material web portion is designed as a structure defined by elevations (60) that are formed integrally with a plane (54) of the flat material web portion, a terminal through-opening (64) is formed in at least some of the elevations, and a cohesive intermediate space (66) is formed between the elevations.