Research on the design of an infusion pump system / 中国医学装备

Objective: To design one kind of medical infusion pump. Methods: Based on single-chip microcomputer, 89C52, use the stepper motor to drive the semi extrusion micro flow pump. Results:During the infusion it can real-time monitor the block and bubble in the pipeline and alarm. It can accurately control the transfusion speed and infusion volume. With friendly man-machine interface it can display real-time infusion parameters and alarm signals. Conclusion: The infusion pump system has high precision and reliability, perfect function, and it is easy to use. Clinical practices show that it can effectively reduce the workload of the clinical nursing staff and improve work efficiency. It has high application value.

Design of Portable Medical Measure System on Palm / 中国医学物理学杂志

Objective: This item presents a feasible scheme of home monitoring device which is a low power and miniaturization equipment for human signal detection, based on single-chip technology. Methods: Taking MSP430F149 as core, the realized functions of system contain real time data acquisition, data processing, data storage, LCD and alarming, keyboard as well as com-munication, replay and reproeessing by host computer. Results: The physiological and biochemical parameters are acquired by system and transmitted to host computer. Conclusions: This design provides a platform for multi-parameters portable detection just as dynamic ecg, ambulatory blood pressure, and so on. It has a good future for application.

Study on Technique of Control and Monitor System of Hydrogen Dioxide Plasma Sterilizer / 医疗卫生装备

Objective To develop a facility to sterilize the heat-sensitive precise medical surgical instruments which can not resist high temperature and high pressure. Methods We used electromagnetic field of high frequency as excitation source for plasma,vacuumized the instrument,pumped in the peroxide,maintained the pressure in the instrument within a certain range,and then applied magnetic RF electric field,causing glow discharge and generating ambiplasma. The microorganism could be quickly destroyed under the synergistic effect of peroxide and low -temperature ambiplasma. Results The facility can sterilize the medical instruments within 45 minutes,enhance the surgical security and reduce the cost. Conclusion By controlling the primary parameters such as temperature,vacuity and time,the sterilization process can be finished in a low temperature safely,easily and quickly,so it is gradually accepted by the medical department.

The portable low power military ECG for triage / 医疗卫生装备

The military portable ECG for triage is a kind of minitype monitoring equipment for life information for the purpose that the ambulanceman carry through first aids in frontline. Life information of the wounded will be acquired exactly and quickly applying with this equipment, then quickening the triage and reducing the casualties. The system is based on C8051F310 single chip microcomputer, applying with high accuracy, low offset drift instrumentation amplifier AD620 and ultra low power LCM LMS019 to display real-time and accurate ECG signal sampled. The equipment is easy to use and inexpensive, suitable for mass requirement of our field army.

Development of a portable low-frequency electronic pulse analgesia apparatus based on single-chip microprocessor / 医疗卫生装备

In this paper, a novel portable low-frequency electronic pulse analgesia apparatus is introduced, which is based on a novel single-chip microprocessor, switching power supply without transformer and OTL power output amplifier. Through this apparatus, multi-group low-frequency electronic pulses can be produced to simulate the same effects as acupuncture. This apparatus has an observably curative effect for dysmenorrhea.

Development of neuromuscular rehabilitation instrument based on USB / 医疗卫生装备

A neuromuscular rehabilitation instrument, with USB bus to supply power and transmit data, is developed to improve the existing product which has low data transmission rate and is at the high cost of battery. Its circuits, including the circuits for singlechip interface, power, EMG amplifiers and filters, MCU, electrode interface and stimulation, are designed. The software of singlechip and PC are also described. The system powering, data transmission, display and storage of EMG are realized. Experiments show that it is reliable.

Development of power self-adapting semi-conductor laser therapeutic instrument / 医疗卫生装备

Objective To solve the problems of low power laser instrument with single wavelength and instable output power as well as its incapability of studying the biological effect of low intensity laser and clinical treatment. Methods The AT89S52 singlechip and PID algorithm were used. Results The desired instrument could output the wave of 532nm green laser which could be adjusted continuously from 0mW to 30mW and the wave of 650nm red laser which could be adjusted continuously from 0mW to 50mW. The error of power could be controlled within 0.1mW. Conclusion The instrument can be used to study the biological effect of low intensity laser and clinical treatment with small volume,easy operation and high stability of laser output.

Control system for skin cell segregating unit based on 80C196 microcomputer / 医疗卫生装备

A kind of skin cell segregating unit based on 80C196 microcomputer is presented in this paper. The front-end controller is a single-chip microcomputer. The unit enables manipulation for 6 patients simultaneously which provides a great convenience for clinical manipulation of vitiligo. With use of serial port communication technology it's possible to monitor and control the front-end controller in a PC terminal. The involvement of computer image acquisition technology realizes synchronous acquisition of pathologic skin cell before/after the manipulation. Clinical test of the unit proves its conformity with national standards and fulfillment of designed technology goal.

Development of constant-temperature-and-humidity test box used in medicament stability experiment / 医疗卫生装备

This article introduces a constant-temperature-and-humidity test box, which, with a high-performance Aduc812 singlechip as the core, is composed of an integrated temperature and humidity sensor, a serial keyboard controller and a lattice-style liquid crystal module. With balance control mode of temperature an d humidity, PID control, temperature and humidity decoupling applied, the high-r esponse-speed and high-precision control can be fulfilled.

Heatstroke prediction machine for single soldier / 医疗卫生装备

The heatstroke prediction machine for single soldier is used to monitor body temperature.It can connect with three temperature sensors and transform the temperature of three spots on body surface into electric potential which is linear compensated,magnified and then samplinged by the singlechip.The liquid crystal display shows the temperature of three spots on body surface and the corresponding temperature of anus in turn.With the function of bady temperature alarm and alarm initialization,it becomes a new equipment to monitor body state of the single solider in tropic war zone.

Surgical traction machine for physical therapy controlled by single-chip microcomputer / 医疗卫生装备

This paper describes a kind of surgical traction machine for physical therapy, which adopts closed loop control mode and a single-chip microcomputer as the control unit. Input can be accomplished through the keyboard or mechanical sensor. Traction is fulfilled through an electromotor-driven mechanism. Inputted parameters and running status can be displayed simultaneously. Being convenient and reliable, the machine can be applied to treatments of cervical spondylosis and lumbar one.

Controlling system of triple pulse vacuum sterilizer for dental use / 医疗卫生装备

The controlling system of triple pulse vacuum sterilizer for dental use adopts PIC single-chip computer as the controller. The information related to stream temperature and pressure of the stream and liquid mixture in the hermetic vessel is acquired and controlled. Linearization measurements of the temperature and pressure and fuzzy control technology are all involved in. The experiment result shows that the controlling system makes the sterilizer free from overshoot, steady-state error and non-robustness.

PTC hot air drying device controlled by single-chip computer / 医疗卫生装备

The PTC hot air drying device controlled by a single-chip computer has such advantages as rapid heating, automatic isothermal, weak leakage current and being time-proof, which applies to all calibers of pipeline.

The design of the graphic display system of a portable medical equipment / 医疗卫生装备

This paper introduces such information of a LCD graphic display system based on SED1335 as its hardware link with the singlechip computer Atmega128 and the design of system display software. With a simple, compact and stable circuit, this system can be applied to portable medical signal monitoring and controlling equipments.