CPC A61B 5/14539 (2013.01) [A61B 5/445 (2013.01); A61F 13/00055 (2013.01); A61F 13/00068 (2013.01); A61M 1/915 (2021.05); A61M 1/917 (2021.05); A61M 1/92 (2021.05); A61M 1/966 (2021.05); A61B 5/0059 (2013.01); A61B 5/01 (2013.01); A61B 5/14552 (2013.01); A61M 1/916 (2021.05); A61M 2205/18 (2013.01); A61M 2205/3313 (2013.01); A61M 2205/3344 (2013.01)] | 23 Claims |
1. A negative pressure wound therapy dressing system, comprising:
a dressing including a lower layer of porous material to contact a wound and an upper layer of material oriented substantially parallel to the lower layer and a wound cover layer having an adhesive perimeter;
a suction system connected to the dressing at a central region of the wound cover layer;
an irrigation sub-system comprising:
a central channel connected to the dressing and extending through both the central region of the wound cover layer and a central region of the upper layer of the dressing; and
a plurality of irrigation delivery tubes embedded within the dressing between the lower layer of porous material and the upper layer and extending laterally outward from the central channel in a plane that is substantially perpendicular to the central channel,
wherein each of the irrigation delivery tubes defines an upper interior tube surface and a lower interior tube surface with the lower layer of porous material positioned below and in contact with the lower interior tube surface and the upper layer of material positioned above and spaced apart from the upper interior tube surface, each of the irrigation delivery tubes comprising at least one irrigation port formed in the lower interior tube surface and disposed at a peripheral position of the lower layer of porous material; and
wherein each of the irrigation delivery tubes is connected in fluid communication with the central channel so as to deliver an irrigation fluid from the central channel to the at least one irrigation port of each respective irrigation delivery tube and into the lower layer of porous material of the dressing.
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