Quantum dots technology in recent years has been widely used in biomedical applications, gradually become an important biomedical test because of its spectral characteristics and good photochemical stability. At the end of the last century seventy's, scientists have conducted in-depth research on quantum dots technology, its advantage has gradually been excavated, it can be said of quantum dots has a long research history. But until the late twentieth century was applied to the field of biology, since then, the application of quantum dots in biomedicine has attracted people's attention. In many fields of biomedicine, there is a breakthrough. This paper analyzed comprehensive for quantum dot technology and its application in biomedical test.

Objective:To strengthen the management and improve the efficiency of medical equipment purchasing, promote the growth of hospital equipment resource value, find scientific equipment procurement ways and methods, establish standardized procurement mode, strive to the code of conduct for the extensive experience into the scientific method of procurement. Methods: Using Net Present Value(NPV) method in financial management on medical equipment purchasing economic benefit analysis, and combined with specific cases and data to analyze the procurement of medical equipment suppliers to provide the equipment procurement scheme.Results: On the assumption that the cost of capital rate is 10%, the three schemes are according to the straight line depreciation method, scheme a net present value for 6.96625 million yuan; scheme 2 net present value for 1.061918 million yuan; project net present value of 5.74608 million yuan; scheme 2 net present value, the second scheme, the net present value of the maximum. Net present value method is an important guarantee for hospital equipment purchase and scientific investment and improved management. Conclusion: Application of net present value method in the purchase of medical equipment show that in equipment procurement program diversification, multiple choice, with net present value method were quantified in order to provide the basis for decision-making, the use of net present value method and the traditional procurement scheme option compared to standards and the scientific nature of medical equipment procurement management, accuracy and objectivity of data analysis.

Objective:There are many different kinds of biological safety cabinets, it make some difficulties in the allocation. Scientific selection which based experimental requirements choose the right equipment match experiments, it can effectively prevent the spread of pathogenic microorganisms of operation personnel damage and environmental pollution.Methods: According to its working characteristics, different laboratory levels, detection items and actual operation of dangerous levels of pathogenic microorganisms, to determine the matched biological safety cabinet.Results: According to the different experiments correctly, choose the appropriate biological safety cabinet, bio-safety has been obviously improved, the incidence of adverse events decreased from 12% to 3%; the experimenter's security has improved.Conclusion: Through the use of biological safety cabinet clear and selection method, can not only improve biological testing of safety consciousness, but also strengthen the biological safety standardization, institutionalization and standardization of the management mechanism, avoid the use of biological safety, improve the quality of the efficiency of laboratory work and experiment, laboratory personnel biological safety.

Objective:To establish efficient health management information platform to achieve dynamic check-up, clinic, hospital health archives management. It can effectively control the chronic disease.Methods: Using wireless mobile network combined with medical data platform, sent orders to the patient who wear or took portable home monitoring equipment for transmitting and receiving instructions, and analyze the data for doctors to provide treatment options. Results: The patients satisfaction is greatly increased from 89% to 95%, medical visit rate also increased obviously.Conclusion: The platform can realize fine management of patient's medical data, achieve the optimal allocation of service resources, and greatly improve the hospital medical service level.

Objective:To optimize the hospital outpatient service, solve the problem of poor outpatient queuing and poor medical experience, combined with Mobile Internet Technology to build a mobile application of outpatient services, and achieve the patient as the center of the O2O outpatient service process.Methods: The Hospital Information System be as the basis, with the help of The Service Windows Platform of Alipay, launching The Friendship Hospital Service Window which is a mobile internet medical application. Focus on its technical architecture, functional design and key technical aspects of the analysis.Results: The Friendship Hospital Service Window achieved the transformation of outpatient treatment process, significantly reduced the invalid waiting time for outpatient patients, reduced the hospital labor costs, improved the efficiency of outpatient clinic service.Conclusion: Mobile internet technology application in the outpatient service, improves the patient medical experience, improves the hospital image, inputs new vitality to the development of the hospital.

Objective:To investigate clinical value of the blood analyzer reticulocyte parameter in the diagnosis of anemia.Methods: 271 cases of anemia patients were divided into iron deficiency anemia(126 cases) and hemorrhagic anemia group(145 cases), namely the observation group; and other 50 healthy physical examinees were selected as the control group. SysmexXE-5000 automatic blood analyzer were used to detect the reticulocyte parameters, including reticulocytes(RET) ratio, high fluorescence reticulocytes(HFR) ratio of middle fluorescence reticulocytes(MFR) ratio and the immature reticulocytes(IRF) ratio.Results: Compared with the control group, the RET, HFR, MFR and IRF were significantly higher in the observation group. The sensitivity of iron deficiency anemia and blood loss anemia was 96.2% and 63.5%; the specificity of anemia was 96.0%.Conclusion: Detection of reticulocyte parameters can reflect the marrow hyperplasia patients with anemia. It has a high sensitivity and specificity in the diagnosis of various types of anemia, which has a high practical value in clinic.

Objective:To study the diagnostic value about enhanced CT and gastroscopy for esophageal varices.Methods: Ninety eight patients with esophageal varices were selected as objects. All the patients underwent enhanced CT and gastroscopy, took detailed records of the test results, and analyzed CT scan at the portal vein and spleen vein values.Results: The results of enhanced CT detection and gastroscopy diagnosis were similar in liver cirrhosis combined with esophageal varices, liver cirrhosis combined with esophageal and gastric fundus varices, and liver cirrhosis complicated with gastric fundus varices. The diagnosis of enhanced CT is significant difference (F=33.06,F=20.22;P<0.05) in detection of portal vein value and spleen vein value for mild, moderate, and severe patients.Conclusion: The enhanced CT and gastroscopy for detecting of esophageal and gastric fundus has satisfactory value, and enhanced diagnostic CT for detecting severities of the esophageal and gastric fundus varices also has a important significance.

Objective:To investigate the effect and application feasibility of low tube voltage, low concentration of contrast agent volume to CTA in the diagnosis of coronary artery stenosis and its effect.Methods: Seventy two cases of suspected patients with coronary atherosclerosis selected as the object Using random number table method, all patients were divided into group A and group B 36 cases in each group, two groups of patients underwent 320 slice CTA examination, in group A the tube voltage is 120kV, the contrast agent was 350mgI/mL iodixanol group, B tube voltage is set to 100kV, the contrast agent was 270mgI/mL iodixanol. According to the examination results of group A, group B and catheter coronary angiography (CCA), evaluated group A, group B of acquiring the image quality and radiation dose of patients, and analyzed the sensitivity of A, B and CCA examination of the extent of coronary artery stenosis degree and deliberately.Results: The quartering method showed no significant difference between the group A and the group B of image quality. There was significant difference between the two groups of patients with the image noise and enhance the effect (t=-4.736, 11.927;P<0.05); Group B of coronary artery stenoses (more than 50%) and severe stenosis (more than 75%) sensitivity, specially degree and coincidence rate compared with the results of CCA showed no significant difference. Kappa consistency analysis showed that the two consistency is good(kappa=1.320,P<0.001).Conclusion: In the premise of ensuring the image quality with low tube voltage, low concentration of contrast agent volume coronary CTA examination had safety and reliability of inspection.

Objective:To discuss the application of tracer methodology in the management of medical high-value consumables, find out the problems and existing risks, and propose possible solutions. Methods: The system tracing based on high-value consumables and the case tracing based on patient were used to track and check the medical high-value consumables in hospital. The inspectors summarized and discussed the issues as well as the possible risks after inspection, to develop the appropriate improvements.Results: There were many problems that were found in the management of medical high-value consumables in this tracing program, of which the main aspects were the species introduction, the implementation of procurement and relative departments, and the organization and leadership among departments.Conclusion:The management of medical high-value consumables is an important part of hospital management, and the tracer methodology provides an effective guarantee for the medical equipment management in hospital.

Objective:To discuss the changing position in three dimensions of maxillary dentition magnetic arch expansion after.Methods: Thirty patients who were in-patient cases were selected, and received three-dimensional data measured before and after treatment it its spiral CT, observed the three-dimensional position of maxillary dentition before and after treatment, and the angle of landmarks change data paired sign test for comparison.Results: Patients in the vertical position of maxillary dentition before and after treatment, sagittal and horizontal direction are changed. First premolars, first molars occurred cheek overall movement and dumping; the maxillary first premolar region is the largest widening position; three-dimensional position of the maxillary central incisor forward, the next move.Conclusion: Patients before and after the change of maxillary dentition MPE can be clearly presented in accordance with spiral CT, lay the foundation for further research MPE mechanism.