公开(公告)号：US20240009377A1

公开(公告)日：2024-01-11

申请号：US17795077

申请日：2021-01-27

Applicant: KCI Licensing, Inc.

Inventor： Edward LEE ,  Christopher Brian LOCKE ,  Jordan TRAXLER ,  Elizabeth TRIMBLE ,  Shannon C. INGRAM ,  Jessica SNOW

IPC: A61M1/00

CPC classification number: A61M1/984 ,  A61M1/966 ,  A61M1/912 ,  A61M1/962 ,  A61M1/964

Abstract: A wound therapy system includes a dressing sealable over a wound, a conduit comprising a first inner diameter, coupled to the dressing, and fluidly communicable with the wound space, and a canister fluidly communicable with the conduit. A therapy unit is coupled to the canister and includes a pump, a sensor configured to measure a pressure, a valve controllable between an open position and a closed position, and a control circuit. The control circuit is configured to control the pneumatic pump to remove air to establish a negative pressure, control the valve to repeatedly alternate between the open closed positions to allow a controlled rate of airflow through the valve, receive measurements of the pressure from the sensor, and determine a volume of the wound space based on the pressure measurements. A portion of the conduit comprises a second inner diameter that is less than the first inner diameter.