Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Development of an IV Infusion Rate Regulator Using Optical Drip Rate Meter

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  • Yang, Y.S. (Interdisciplinary Program, Biomedical Engineering Major, Graduate School, Seoul National University) ;
  • Kim, H.C. (Department of Biomedical Engineering, College of Medicine, Seoul National University)
  • 양윤석 (서울대학교 대학원 협동과정 의용생체공학) ;
  • 김희찬 (서울대학교 의과대학 의공학교실)
  • Published : 1998.11.20
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Abstract

It is necessary to maintain constant intravenous (IV) infusion rate. While infusion pump is able to control infusion rate with great accuracy, its rather large size and weight make it difficult for patients to move around. The most commonly used infusion device is gravity IV infusion set with its administration chamber being clamped according to the observed drip rate. In this case it may be easier and more accurate to maintain IV rate to given value if we automate the drip-counting process and tube-clamping work by electronic devices. We calculated volume infusion rate of specific fluid using optical drip rate meter which we had developed. To regulate fluid flow rate, we equipped the rate meter which we had developed with a miniaturized clamping apparatus using DC motor. Also, we Implemented drip detection and clamp control algorithm with PIC16C73 $\mu$-controller (Microchip). This system provides user interface through LCD display and key buttons.

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