Back to results
US 10,293,073 B2Granted
Moisture management for wound care
AssigneeAvent, Inc.
InventorsJohn P. Gann, Dave A. Soerens
Life of this patent
Estimating the term…
Abstract
There is provided an absorbent system for wound care products having a liquid-absorbing, wound-contacting, lower layer and a more highly absorbent upper layer in liquid communication with said lower layer. Liquid communication may be provided by pores running between the layers. The dressing may include antimicrobial agents, agents to promote healing and other functional agents.
Claims15
A wound dressing for covering a wound of a patient, comprising:
- a wound-contacting lower layer having a first liquid absorption rate and a first degree of crosslinking, the lower layer comprising one or more lower perforations configured therethrough;
- and
- an upper layer configured adjacent to the lower layer, the upper layer comprising one or more upper perforations configured therethrough and aligning with the one or more lower perforations, the upper layer being in liquid communication with the lower layer via the aligned one or more upper perforations and the one or more lower perforations, the upper layer having a second liquid absorption rate, the upper layer comprising a superabsorbent polymer having a second degree of crosslinking, the second liquid absorption rate being higher than the first liquid absorption rate, the second degree of crosslinking of the upper layer being lower than the first degree of crosslinking of the lower layer.
A wound dressing for covering a wound of a patient, comprising:
- a wound-contacting lower layer having a first liquid absorption rate and a first degree of crosslinking, the lower layer comprising one or more lower perforations configured therethrough;
- and
- an upper layer configured adjacent to the lower layer and facing away from the patient, the upper layer comprising one or more upper perforations configured therethrough and aligning with the one or more lower perforations, the upper layer being in liquid communication with the lower layer via the aligned one or more lower perforations configured in the lower layer and the one or more upper perforations configured in the upper layer, the upper layer having a second liquid absorption rate, the upper layer comprising a superabsorbent polymer having a second degree of crosslinking, the second liquid absorption rate being higher than the first liquid absorption rate, the second degree of crosslinking of the upper layer being lower than the first degree of crosslinking of the lower layer.
Dependencies are inferred from the claim text.