Design and protection evaluation of air purification system in intensive care ambulance / 军事医学

Objective To design and develop an air purification system for intensive care ambulances,which can effectively purify the air in the compartment and sterilize the microbes in the air.Methods By integrating titanium dioxide photocatalysts with air filtration materials,an air purification system was designed that was capable of effective sterilization of microbes in the air via photocatalytic oxidation and decomposition,and of effective filtration of particles in the air through HEPA filters.The protection effect was evaluated by air filtration and sterilization tests in accordance with the related national standards.Results The air cleanliness could reach the 100 000 level with bacteria counts no more than 1 CFU per pan for 15 minutes in the ambulance compartment when the air purification system worked normally,which could meet the demands of environmental hygienic standards for intensive care units.Conclusion The air purification system can effectively purify and sterilize the air in the compartment of an intensive care ambulance.The effects of air purification meet the requirements of related hygienic standards,which can satisfy the demands of treatment and intensive care for the victims in the ambulance.

Analysis of Factors on Clinical Application of Vehicle CT Shelter / 中国医疗器械杂志

To assure the clinical quality and requirement of CT shelter used in field environment, the factors related with the practical application were studied. The evaluation indicators of CT equipment were investigated. Based on the technical modification of vehicle shelter CT, the scanning conditions of shelter CT were analyzed. Moreover, the comparative study was done between shelter CT and common CT in hospitals. In result, in order to meet maneuverability application in the field, vehicle shelter CT was restrictive by the field conditions, traffic impacts and running requirement. The application of vehicle shelter CT was affected by the factors, such as mechanical stabilization, moving precision, power fluctuations and variations of temperature and humidity, etc. The results were helpful to improve the clinical quality of vehicle shelter CT and made a base for the quality control study in the future.

Design of an anesthesia and micro-environment information management system in mobile operating room / 生物医学工程学杂志

We have designed a mobile operating room information management system. The system is composed of a client and a server. A client, consisting of a PC, medical equipments, PLC and sensors, provides the acquisition and processing of anesthesia and micro-environment data. A server is a powerful computer that stores the data of the system. The client gathers the medical device data by using the C/S mode, and analyzes the obtained HL7 messages through the class library call. The client collects the micro-environment information with PLC, and finishes the data reading with the OPC technology. Experiment results showed that the designed system could manage the patient anesthesia and micro-environment information well, and improve the efficiency of the doctors' works and the digital level of the mobile operating room.

Numerical simulation on cycle change form of the pressure and wall shear in human upper respiratory tract / 生物医学工程学杂志

The research on cycle change form of the pressure and the wall shear in human upper respiratory tract can strengthen understanding of the characteristics of the airflow in the place and provide us with a scientific basis for analyzing the diffusion, transition and deposition patterns of aerosol there. In our study, we used large eddy simulation to emulate the pressure and wall shear in human upper respiratory tract in conditions of the low intensive respiratory patterns, and discussed the distributing disciplinarian of the pressure and wall shear in mouth-throat model and trachea-triple bifurcation. The results showed that the pressure gradient variation in human upper respiratory tract was mainly fastened from root of epiglottis to trachea. The minimum pressure at the interim of inspiration was a duplication of the interim of expiration, and located on the posterior wall of the glottis. The pressure gradient variation was evident on trachea and its fork. The wall shear changed with the velocity of the air flow, and its direction changed periodically with breath cycle.

Research on Compartment Environmental Quality of Ambulance Against Biological Contamination / 医疗卫生装备

Obiective To study the compartment environmental quality of ambulance against biological contamination for safe and comfortable transportation and treatment of patients. Methods The experimental research and numerical simulation were carried to master the state of compartment environmental quality, Results Compartment environment indexes excel technology demands, such as overpressure/negative-pressure, temperature, biological contamination, vibration and shock as well as noise and luminance, Conclusion The compartment environmental quality of this ambulance is in a good state.

Research and key technology of info-visualization system of medical equipment / 医疗卫生装备

The technology of info-visualization is recommended.The main research of info-visualization system of medical equipment is proposed and the key technologies involved in that system are discussed.

S95-100 field mobile medical system and its application / 医疗卫生装备

S95-100field mobile medical system is a field mobile hospital composed of such function cells as medical shelters,tents,special vehicles and transportable containers.Several logistic functions of the cells are introduced including patients checking and sorting,surgery,pre-operation preparation,emergency,clinical laboratory,medical supply,X-ray diagnosis,sterilization,medical command and communication,patient holding ward,logistic technical support and connection.The whole system assignments by different modules clipping and transformations,the application tests and widen tryouts in the army are alsopresented.

Application and Prospect of Wireless Net Technology in Medical Equipment / 医疗卫生装备

Objective To apply wireless net technology in our military's medical equipment more effectually. Methods The author analyzed the existing wireless net technology and its domain of application to find out the application actuality of wireless net in our military's medical equipment. Results The wireless net technology is widely used in the medical equipment and has good application prospects. Conclusion The author will continue to deepen the application research in wireless network technology in hope to improve the level of informatized military medical equipment.

Application of Medical Equipment in Combined Action of Humanitarian Succor Between China and Gabon / 医疗卫生装备

This paper introduces the application of motor medical equipment independently developed by ourselves in combined medical succor action between China and Gabon.Problems about equipment using are summarized,and the corresponding resolvent to every different problem is listed,which will help to provide some references to the evolution,demonstration and development of medical equipment in the future.

Research on Information System of Mobile Hospital Based on Shelter / 医疗卫生装备

Objective To research a set of information system to improve the ability of rescue on mobile hospital. Methods The industry server and shelter client were used for establishing the network system of medical information, which used telemedicine in satellite communication, analyzed hardware topology and software demand. The measures of increasing safety and reliability were provided. Results The medical information was transmitted by network to share; the transmitting speed of remote diagnosis was 768Kb/s and dynamic image in 25 frame per second. Conclusion The level of the hospital informationization was improved for designing the IMS in modular thought.

Gas Provision for Medical Use in Earthquake Relief Mission / 医疗卫生装备

Objective To analyse and solve the difficulties and countermeasures in continuously proving medical gas. Methods Aiming at the difficulties of continuously proving medical gas, oxygen produced are mostly canned by oxygen compressor, and are transported to every function module through connecting oxygen jars. Results Medical gas module was taken into full play to meet reasonable demand for continuously providing oxygen. Conclusion It is suitable for other field module hospital to use for reference in the action of medical succor of disaster.

The ergonomic evaluation of expanded shelter / 医疗卫生装备

The ergonomics of equipment is important,it is essential to make the ergonomic evaluation in the stage of design. The operation of expanded shelter is a typical form of combination of human labor and machine. The fuzzy comprehensive evaluation model is founded. The high-level factor set include the states of operation, the ratio of every state time to the total time is the corresponding weight for the elements in high-level factor set, the lower-level factor set include the elements which influence the states of operation. For the elements in lower-level factor set, the corresponding weight is given by the experts.

Development of NBC Filtration and Ventilation Unit / 医疗卫生装备

Objective To design and produce a kind of NBC filtration and ventilation unit with the function of filtering biological aerosols and chemical poisonous gas and so on in the air,providing new clean air for the medical shelter.Methods The filtration unit and ventilation unit were united in principle of manipulability and repairability by modularization method.Results Structural dimensions and vibrational noises of the unit were reduced,and manipulability and repairability were improved.Conclusion The unit can meet the demands of biological and chemical protection for the medical shelters,and the structural design of fast fitting and so on can meet the requirements of fast responses.