Abstract
In this work, we present a wearable sensor patch for the early detection of extravasation by using a simple, direct printing process. Interdigitated electrodes are printed on a flexible film, which can be attached to skin. The electrodes are integrated with a top electrode to form a flexible pressure-sensing device utilizing an electrical contact resistance (ECR) variation mechanism. The detector possesses good sensitivity and a low detection limit for pressure variation. By adjusting the printing parameters, sensors of millimeter size can be fabricated and allow the potential for multiple detection points in a large area. In addition, by using silver nanowire inks, the sensor becomes nearly transparent to prevent patients’ panic. The possibility and feasibility of this device for early extravasation detection is also evaluated.
Highlights
Extravasation is the leakage of intravenously (IV) infused medication into the extravascular tissue surrounding the site of infusion
Previous methods for early detection of extravasation include a wearable sensor patch incorporated with a strain sensor [2] and an electrode patch that can attach to the skin to sense electrical information [3]
In this study, we present a wearable transparent sensor patch for the early detection of extravasation by using a simple, direct printing process
Summary
Extravasation is the leakage of intravenously (IV) infused medication into the extravascular tissue surrounding the site of infusion. Studies in extravasation injuries in pediatric hospitals have quoted rates of 11–70% in children receiving IV medications [1]. Extravasation is frequently detected late when a large subcutaneous “bump” or swelling is noticed at the IV cannula site.
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