根據衛福部的統計,每年約有160萬人因開放性傷口損傷而就醫,治療後的傷口包紮是常見的處理步驟。此外大型的傷口因癒合較慢,臨床上會以大面積的紗布將傷口包覆,使其與外部空氣、水氣隔絕,提高用藥效率與降低感染機率。當傷口貼上紗布後除非定時的檢察傷口,醫護人員很難用肉眼觀察傷口的實際情況,且病患難以自我察覺變化。本研究利用自行設計的pH值、濕度感測器搭配穿戴式系統,開發傷口智慧監測裝置。所研發的感測貼片將與臨床紗布整合,降低臨床照護流程上的衝突。藉由量測傷口所滲出的組織液,評估傷口復原狀況。並可利用無線傳輸功能,將訊號即時顯示於監控端,最後將結果儲存於資料庫,便後續的追蹤與研究。由實驗結果顯示,本裝置檢測pH值檢測可達0.01 pH / mV、濕度檢測可達0.06 percent / mV,且響應時間為0.1秒。系統在無線多點傳輸的架構下,裝置續航力約為14-16小時,且資料遺漏率低於1%。期待藉由本研究所提出的裝置,能改善臨床醫療照護的負擔,提升傷口監測與遠距醫療之願景。
According to the statistics of the Department of Health and Welfare, about 1.6 million people had sought medical attention yearly for the cause of chronic wounds. Wound care dressing after treatment was recognized as a common treatment. Larger wounds took much longer to heal, therefore, the wounds were covered with a large area of gauze to isolate them from outside air and moisture in clinical practice to improve the efficiency of medication and reduce the risk of infection. When the wounds were covered with gauze, it was difficult for the medical staff to visually observe the actual condition of the wound, which was hardly recognized by patients. This study developed a wound wearable monitoring device with a self-designed pH sensor, moisture sensor, and wearable system. The developed sensor patch would be integrated with clinical gauze to reduce the conflicts in the clinical healthcare process. The status of wound recovery was assessed by measuring the amount of tissue fluid exuded from the wound. It could also transmit signals via Wi-Fi, and promptly display the signal on the monitoring terminal. The final results were recorded in the database for follow-up or real-time analysis. The experimental results show that the pH detection of the proposed device could reach 0.01 pH / mV, the moisture detection could reach 0.06 percent / mV, and the response time was 0.1 second. Under a framework of multi-bed wireless transmission, the device endurance was about 14-16 hours and missing data rate was less than 1%. We hope that the proposed device in present study would improve the burden of clinical medical care and enhance the vision of wounds monitoring and telemedicine.
蔡志茂