基于减速电机的微量药物输送系统的研制

Research and fabrication of a micro drug delivery system based on reduction motor

介绍一种以直流电机为动力元件的驱动减速齿轮箱,实现微量药物输送的系统。采用单片机与光电传感器控制电机转动的圈数,实现药物的微量输注。阐述了系统的驱动机构和药量输送的控制方法。通过实验验证,输注精度为-2.3%～2.9%,满足临床应用要求,且稳定性高。此方法适于微型化,可为该类型微小尺寸装置的设计提供有意义的借鉴。

A micro drug delivery system using a DC motor as the actuator to drive the gear box is presented. Microcontroller and photoelectric sensor have been introduced to control the rotation circles of the motor, which is the crucial technique to the realization of the drug delivery system, The drlven-mechanics of the system and the control method of dosage delivery is illustrated. The experiments show that the precision of drug infusion is -2.3 % -2.9 %, which satisfies the general requirements of clinical application, and the system stability is reliable. This system is available for miniaturization, and can benefit for the design and application of this kind of device.