PROTECTIVE DRESSING FOR ABDOMINAL VISCERA IN NEGATIVE PRESSURE THERAPY

Abstract

Protective dressing for abdominal viscera for application of negative pressure therapy in open abdomen, made up of an upper layer (1), an intermediate layer (3) and a lower layer (2), each of which consists of a laminar body. The upper layer (1) includes a plurality of first holes (6) for the passage of fluid and the intermediate layer (3) includes numerous low pressure gas filled bubbles (7) and a plurality of second holes (8) for the passage of fluid. These bubbles (7) prevent possible damage to the abdomen and prevent the sheets from sticking together. The three layers adhere to each other at their respective perimeter edges.

Claims

1. A protective dressing for abdominal viscera for application of negative pressure therapy in an open abdomen, made up of an upper layer and an intermediate layer integrally linked to each other at least by their respective perimeter edges, each of which consists of a laminar body, the protective dressing being characterized in that: the upper layer includes a plurality of first through holes for the passage of fluids through the first through holes, and in that the intermediate layer includes: a plurality of bubbles filled with a low pressure gaseous fluid, and a plurality of second through holes for the passage of fluids through the first through holes.

2. The protective dressing according to claim 1, characterized in that it includes a lower layer integrally linked to the intermediate layer, made up of a laminar body that includes the first through holes for the passage of fluids through the first through holes.

3. The protective dressing according to claim 2, characterized in that the upper layer, the lower layer, and the intermediate overlap each other so that the first through holes face each other with interposition of the intermediate layer.

4. The protective dressing according to claim 1, characterized in that two contiguous bubbles are separated from each other by a distance of at least half their diameter.

5. The protective dressing according to claim 2, characterized in that two contiguous bubbles are separated from each other by a distance of at least half their diameter.

6. The protective dressing according to claim 3, characterized in that two contiguous bubbles are separated from each other by a distance of at least half their diameter.

Description

DESCRIPTION OF THE DRAWINGS

[0021] To complement the description that is being made and in order to help a better understanding of the features of the invention, according to a preferred example of a practical embodiment thereof, a set of drawings is attached as an integral part of said description in which, for illustrative and non-limiting purposes, the following has been represented:

[0022] FIG. 1. Shows an exploded perspective view of the dressing, wherein its main constituent elements are seen.

[0023] FIG. 2. Shows a plan view of the dressing.

PREFERRED EMBODIMENT OF THE INVENTION

[0024] A detailed explanation of a preferred embodiment of the object of the present invention is provided below, with the aid of the aforementioned figures.

[0025] The protective dressing for abdominal viscera in negative pressure therapy that is described is made up of a multilayer structure, which in this preferred embodiment is comprised of an upper layer (1), a lower layer (2) and an intermediate layer (3) located between the upper (1) and lower (2) layers, the three layers being integrally linked to each other by their respective perimeter edges as seen in FIG. 1.

[0026] The upper (1) and lower (2) layers, having similar geometry and dimensions, each consist of a laminar body with an internal side (4), intended to be oriented inwards and facing the intermediate layer (3) and an external face (5), intended to be oriented towards the outside. Likewise, the laminar body incorporates a plurality of first evenly distributed through holes (6) that allow the passage of fluids through them, which gives said upper (1) and lower (2) layers a fenestrated nature.

[0027] The intermediate layer (3), having geometry and dimensions essentially similar to those of the upper (1) and lower (2) layers, consists of a laminar body that incorporates a plurality of bubbles (7) uniformly distributed and filled with a gaseous fluid at low pressure. In the preferred embodiment described herein, said bubbles (7) have an essentially hemispherical geometry, as illustrated in the detail in FIG. 1.

[0028] The intermediate layer (3) also incorporates a plurality of second through holes (8) adjacent to the bubbles (7) that allow the passage of fluids through them, giving rise to an intermediate layer (3) of a fenestrated nature, as well as allowing the transmission of negative pressure to the abdominal cavity. In this preferred embodiment, the second through holes (8) have an essentially rhomboid geometry. The separation distance between bubbles (7) in said intermediate layer (3) shall be at least half their diameter.

[0029] As can be seen in FIG. 2, in the preferred embodiment the overlapping of the upper (1), lower (2) and intermediate (3) layers is carried out in such a way that the respective through holes (6) are facing each other, without the bubbles (7) being facing said through holes (6).

[0030] In an alternative embodiment, not shown in the attached figures, the multilayer structure of the protective dressing consists only of the upper layer (1) and the intermediate layer (3), which is directly facing the abdominal cavity, regardless of the lower layer (2). The bubbles (7) are, in this case, facing the upper layer (1), to avoid the generation of marks on the viscera.