This invention relates a feedback control method of negative pressure wound care system and negative pressure wound care system, which form a negative pressure environment at an opening of a wound-dressing device and form a relative positive pressure environment at the fluid collection bag. With the data measured from both positive and negative pressure detections, whether the negative pressure at the wound is normal or not can be identified and the positive pressure of the fluid collection bag can be kept at normal as well, whereby the system can be maintained in operation under a condition where both positive and negative pressures are normal and an optimum arrangement of a pump between the fluid collection bag and the wound site can be put into operation smoothly.本發明為一種負壓傷口照護系統的回饋控制方法及該系統,其於傷口包紮裝置之開口處形成負壓環境,並於集液袋相對應形成正壓環境,配合正負壓雙線偵測所得到的數值,一方面可得知傷口處的負壓值是否正常,一方面亦可確保集液袋中的正壓值維持正常,故可維持系統在正負壓均正常的狀態下運轉,進而使得泵浦設於集液袋與傷口間的較佳化配置能順利運作。10...控制器13...控制面板20...感測器30...致動器40...集液裝置50...傷口包紮裝置51...傷口封膜511...開口52...導液單元521...過濾材質
