Patent ID: 9440010
Filing Date: 2016-09-13
CPC Classification: A61F,A61L,A61M

Claim Text:
1. An apparatus for treating a wound site on a patient, the apparatus comprising: a single-layer drape comprising a substantially gas impermeable, flexible sheet having a first side and a second, wound-facing side, the first side being substantially smooth and the second, wound-facing side having a plurality of projections for promoting granulation formation at the wound site, wherein the single-layer drape is configured for positioning over the wound site and to extend beyond the wound site to contact a portion of the patient's intact epidermis for sealing the wound site, and wherein the single-layer drape is further configured to be in fluid communication with a reduced pressure source for providing a reduced pressure; a vent in a conduit connecting the reduced pressure source and the single-layer drape, the vent being configured to release the reduced pressure; a sensor configured to measure a pressure decay time of the reduced pressure being released through the vent; and a processor configured to determine whether the single-layer drape needs to be changed based on a pressure-time curve populated by multiple measurements of the pressure decay time, the processor further configured to send an alert signal to an alarm when the drape needs to be changed.