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The aim of this study was to evaluate a prototype negative pressure wound therapy ( NPWT ) system that has been developed to simplify  NPWT  for wounds at the lower end of the acuity scale. The new device has a single preset pressure of −80 mmHg, is single use and operates without an exudate canister. The disposable  NPWT  system ( PICO ™) was tested in a prospective, non‐comparative, multicentre clinical trial to assess device functionality and clinical acceptance. Twenty patients were recruited for a maximum treatment period of 14 days. The  NPWT  devices were fitted with data log chips to enable longitudinal assessment of negative pressure and leak rates during therapy. Sixteen (80%) patients had closed surgical wounds, two (10%) patients had traumatic wounds and two (10%) patients received meshed split thickness skin grafts. The mean study duration was 10·7 days (range: 5–14 days) and the mean dressing wear time per individual patient was 4·6 days (range: 2–11). Fifty‐five percent of wounds had closed by the end of the 14‐day study or earlier, with a further 40% of wounds progressing to closure. Real‐time pressure monitoring showed continuous delivery of  NPWT . Three cases are discussed representing different wound locations and different patient factors that can increase the risk of post‐surgical complications. Clinical studies of the disposable  NPWT  system confirmed the ability of the simplified single‐use device to function consistently over the expected wear time. The anticipated reduced costs, ease of use and increased mobility of patients using this system may enable  NPWT  benefits to be available to a greater proportion of patients.

Simplified negative pressure wound therapy: clinical evaluation of an ultraportable, no‐canister system