Objective:To use computer technology for large medical equipment quality management.Methods: The quality management mode of the existing large medical equipment and means of analysis, combined with the work practice, learn from developed countries in Europe and America advanced method of large medical equipment management, and extract the key elements of quality management, and the formation of information management of design documents and procedures.Results: A set of used in quality management of large medical equipment information system, including the elements of quality management, quality management evaluation and related benefit analysis.Conclusion: by means of information used for quality management of large medical equipment, effectively regulate the quality management system of large-scale medical equipment, to enhance the quality and safety of controllability, protect the patient's life security, but also conforms to the future development direction of quality management, to satisfy the competent departments, medical institutions and patients in many aspects such as quality safety requirements for large medical equipment.

Objective To compare the effect of emergency percutaneous transluminal coronanry angioplasty and thrombolytic therapy (PTCA) in acute myocardial infarction (AMI). Methods 52 cases of AMI were treated by emergency PTCA while 58 cases of AMI were treated by thrombolytic therapy, we then compared the clinical effect between two groups both in hospital and the follow-up period. Results In the emergency PTCA group, 3 cases died while 49 cases were successful (success rate 94.2%) and the average staying in hospital was 14.6 d. In this group the left ventricular ejection fraction (LVFT) was 45.5%?4.3%. During the follow-up period of 2～18 months, 3 cases of angina pectoris occurred again and 3 case accepted the treatment of selective PTCA in the emergency PTCA group. In the group of thrombolysis, 8 cases died while 50 cases were successful (the ratio of success rate 86.2%) and the average staying in hospital was 26.4 d. In this group the LVFT was 37.6?6.2. During the follow-up period of 2～18 months, 17 cases of angina pectoris occurred again and 17 cases accepted the treatment of selective PTCA in the thrombolysis group. Conclusion The infarct related arteries (IRA) can be revascularized with emergency PTCA in AMI. The treatment of emergency PTCA can reduce the ratio of sudden death and the days in-hospital ( P

Objective To observe the short term results of emergency PTCA and stent treatment of acute myocardial infarction Methods Analyze the 52 cases of acute myocardial infarction under PTCA and stent treatment in our hospital. Results The reopen rate of infarct related vessels is 100%. One of patients was not able to implant the stent. The post operative situation, ECG and myocardial enzyme are improved obviously without complication. The mean hospitalization period is about 2 weeks. 2 D echo shows EF was normal before discharge. Conclusion The reopen rate of infarct related vessels of AMI under emergency PTCA and stent treatment can short AMI patients′ hospitalization time and improve the myocardial pump function obviously.