Abdominal treatment systems, delivery devices, and methods

摘要

A reduced-pressure abdominal treatment device is presented that has a plurality of liquid-impermeable layers with a foam spacer between two of the liquid-impermeable layers. The plurality of liquid-impermeable layers have a coextensive area A1. The foam spacer has a plan-view area A2. A2 is less than 80% of A1 (i.e., A2<0.8A1). The foam spacer is configured such that, under reduced pressure, a target fluid removal zone experiences reduced-pressure vectors over an angle theta (θ) that is typically 360 degrees for a majority of locations in the target fluid removal zone. Applying 360 degrees of reduced pressure helps avoid blockage. The plurality of liquid-impermeable layers may be bonded for various effects. Other devices, systems, and methods are disclosed.

主权项

1. An abdominal treatment device, the abdominal treatment device comprising:
a plurality of liquid-impermeable layers, wherein the plurality of liquid-impermeable layers are at least partially fenestrated; a star-shaped foam spacer disposed between at least two layers of the plurality of liquid-impermeable layers, the star-shaped foam spacer having a plurality of spaced leg members; a plurality of longitudinal bonds formed between adjacent members of the plurality of spaced leg members, wherein the longitudinal bonds form a plurality of flow channels adapted to direct reduced pressure toward a center portion of the star-shaped foam spacer; and wherein an analytical control volume in one of the plurality of flow channels has reduced pressure vectors primarily oriented toward the center portion.