Infusion Level Monitor Using Capacitive Touch Sensing

Infusion level monitors track fluid levels in IV bags or bottles, alerting caregivers when the fluid is running low. These devices are essential for ensuring accurate medication delivery and enhancing patient care by notifying caregivers of issues such as occlusions, empty reservoirs, or malfunctions.

This infusion level monitor uses capacitive touch sensors to detect the liquid amount in a bag or bottle, operating with low power consumption. Users can monitor the remaining liquid remotely via Bluetooth^® Low Energy (LE) or Wi-Fi, making it convenient to use from locations such as a nurse's station. This design can be applied not only to infusion systems but also to various applications involving liquid tanks.

System Benefits​:

• Capacitive touch sensing and system control offer precise, non-intrusive, and reliable measurement of liquid levels
• The simple electrode configuration accurately detects the remaining liquid, reducing the BOM cost.
• The low power consumption Wi-Fi and Bluetooth LE module, coupled with an MCU, ensures long-term operation, making it ideal for battery-powered applications.