Wound treatment device employing negative pressure

Inventors

Eriksson, Elof • Broomhead, Michael

Assignees

Applied Tissue Technologies LLC

Abstract

Devices and methods for wound treatment are disclosed. A chamber may define a treatment space having an interior engineered surface including a plurality of structures configured to provide pathways for the distribution of negative pressure and to exert mechanical stress on a wound. In some specific embodiments, the devices and methods may treat wounds on the head, neck, and face. One or more tubes may be in fluid communication with the treatment space to facilitate the application of negative pressure, the introduction of therapeutic agents, and the removal of wound material.

Core Innovation

The disclosure describes a method of treating a patient having a facial wound by debriding the facial wound and fitting a wound treatment device over a head of the patient. The wound treatment device includes a chamber configured to enclose a head and neck region of the patient, made of an impermeable material sufficiently thin to conform to the head and neck, with a sealing portion at a base and an interior surface defining an isolated treatment space.

The engineered interior surface includes a plurality of embossed structures disposed on the interior surface of the chamber. These embossed structures are configured to directly contact the facial wound and to create pathways for distributing negative pressure between the interior surface of the chamber and the facial wound.

At least one tube is connected to the chamber and is in fluid communication with the isolated treatment space, enabling at least one of applying negative pressure to the isolated treatment space and applying a therapeutic agent to the facial wound. Negative pressure wound therapy is applied to the isolated treatment space for a sufficient duration to effect healing of the facial wound.

The disclosure further describes negative pressure distribution using raised embossed structures and patterned channels/folds to create pathways for distributing negative pressure while applying mechanical stress on the wound. The device can include tubes for applying negative pressure and/or delivering therapeutic agents, and it can be used without a porous insert to enable visual inspection, reduce leakage, and improve patient mobility.

Claims Coverage

The provided content explicitly presents one independent claim centered on a facial-wound treatment method with four inventive features: an impermeable thin conforming chamber sealing an isolated treatment space, embossed interior structures that create pathways for distributing negative pressure, at least one tube in fluid communication enabling negative pressure and/or therapeutic-agent delivery, and applying negative pressure wound therapy for a sufficient duration to effect healing. Additional dependent claims refine therapeutic-agent classes, structural constraints, and the optional absence of a porous insert and use of a manual pump.

Overall, the claim coverage centers on combining an impermeable thin conforming chamber with an isolated sealed treatment space over a facial wound, interior embossed structures configured to directly contact the wound and create pathways for distributing negative pressure, and a tube in fluid communication that enables negative pressure and/or therapeutic-agent application, followed by negative pressure wound therapy for a sufficient duration to effect healing.

Stated Advantages

Documented Applications