Design of infusion liquid flow valve regulator based on ESP32 microcontroller = Rancang bangun pengatur katup aliran cairan infus berbasis mikrokontroler ESP32

Salim, Dalbert Setiadi (2023) Design of infusion liquid flow valve regulator based on ESP32 microcontroller = Rancang bangun pengatur katup aliran cairan infus berbasis mikrokontroler ESP32. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Intravenous fluid administration is one of the most common medical procedures to fulfill the patient's need for fluids, nutrition, or medication. Proper fulfillment of fluid needs is very important to support patient healing. However, conventional infusion fluid administration can pose a health risk if the infusion fluid is not changed on time. A simple system is proposed to prolong the administration of IV fluids to patients and provide alarms and other alerts to nurses on duty in the hospitalization room. This system uses two infusion bags and two solenoid valves, where the water flow will converge on one hose using a t-junction. To regulate the opening/closing of the two solenoid valves, an XKC-Y25 sensor (non-contact liquid) and a loadcell sensor (weight sensor) are used to see which one is better in terms of cost, practicality of manufacture, and accuracy. A testing scenario is conducted on both sensors to control the solenoid valve that drains one of the two infusion bottles based on certain conditions. In the system experiment with the XKC-Y25 sensor, a 500mL water bag was used with a flowrate setting of 35mL/min, and was completed in 28 minutes. Next, using a loadcell sensor with the same amount of water, it took 38 minutes with a flowrate setting of 26,3mL/minute. Both the XKC-Y25 sensor and the loadcell sensor can control the opening and closing of the solenoid valve properly as expected. / Pemberian cairan infus merupakan salah satu prosedur medis yang umum dilakukan untuk mencukupi kebutuhan cairan, pemberian nutrisi, atau obat-obatan pada tubuh pasien. Pemenuhan kebutuhan cairan yang tepat sangat penting untuk mendukung penyembuhan pasien. Namun, pemberian cairan infus secara konvensional dapat menimbulkan risiko kesehatan bila pergantian cairan infus tidak dilakukan tepat waktu. Terdapat usulan sistem sederhana untuk memperpanjang pemberian cairan infus kepada pasien dan memberikan peringatan berupa alarm dan peringatan lainnya kepada perawat yang bertugas di ruang rawat inap. Sistem ini menggunakan dua buah kantong infus dan dua buah solenoid valve, di mana aliran air akan menyatu pada satu selang menggunakan t-junction. Untuk mengatur buka/tutup dua solenoid valve tersebut digunakan sensor XKC-Y25 (non-contact liquid) dan sensor loadcell (sensor berat) untuk melihat mana yang lebih baik dari sisi biaya, kepraktisan pembuatan, dan keakurasian. Skenario testing, dilakukan terhadap kedua buah sensor untuk mengontrol solenoid valve yang mengalirkan salah satu dari dua kantong infus berdasarkan kondisi tertentu. Pada eksperimen sistem dengan sensor XKC-Y25, digunakan kantong air 500mL dengan pengaturan flowrate sebesar 35mL/menit, dan selesai dalam durasi 28 menit. Berikutnya, menggunakan sensor loadcell dengan jumlah air yang sama, membutuhkan waktu selama 38 menit dengan pengaturan flowrate 26,3mL/menit. Baik sensor XKC-Y25 dan sensor loadcell dapat mengontrol buka dan tutup solenoid valve dengan baik sesuai yang diharapkan.

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