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Adrenal insufficiency is a disease characterized by insufficient secretion of adrenocortical hormones, usually treated with glucocorticoid replacement therapy. The routine drugs have two forms-short-acting and long-acting. The shorter one should be taken 2-3 times a day resulting hormone level of patients fluctuating greatly within a day. Although long-acting drugs reduce the frequency of administration, it is easy to lead to excessive replacement, resulting in adverse effects on metabolism. New alternative treatments for adult patients have emerged, including modified-release hydrocortisone and hydrocortisone subcutaneous infusion pumps. In this review, we briefly introduce these new therapies, emphasizing the pharmacodynamics and pharmacokinetics of the replacement, the effects on metabolism and drug safety, aiming at contributing to the future clinical practice.
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OBJECTIVE@#10 instructions of infusion pumps were contrasted and analyzed in order to explore the problems of instructions, furthermore improve the product safety.@*METHODS@#Analyzed the scopes of application, requirements of infusion apparatus, maintenance methods and cycles, battery maintenance, and service life, etc.@*RESULTS@#There were 5 products in 10 which did not indicate contraindications. One product only provided the thickness range of the tube wall of the infusion apparatus instead of specific brands. The cleaning cycles of 9 products varied from 2 to 12 months. One product did not clarify the service life.@*CONCLUSIONS@#It is recommended that manufactures should improve the product instructions to ensure the safety of infusion pumps.
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Electric Power Supplies , Infusion Pumps , Risk AssessmentABSTRACT
OBJECTIVE@#Analyze and conclude the new quality control process, so as to improve the quality control efficiency.@*METHODS@#Statistical analysis was conducted on the flow rate quality control data of infusion pump in 2020, with a total of 330 times of quality control data.@*RESULTS@#The pump with qualified flow rate entered and maintained the qualified state from the third minute, while the pump with unqualified flow rate entered and maintained the unqualified state from the second minute.@*CONCLUSIONS@#Take the third minute to enter the qualified range and continue for 2 minutes to judge that the flow rate quality control is qualified. The accuracy of this new rule is as high as 100%, and the time of flow rate quality control can be reduced from 60 minutes to 10 minutes, which greatly improves the work efficiency.
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Infusion Pumps , Quality ControlABSTRACT
Objective@#A practical length regulator of extended tube for microinjection pump was made and its clinical effect was observed. The method and basis were provided for the orderly management of various infusion pipelines in clinic.@*Methods@#The texture, inner diameter and color of the regulator are designed. Sixty patients who needed to use three or more lengthened tubes at the same time and were pumped through the same vein passage were randomly divided into two groups: the regulator group and the non-regulator group. 31 patients in the regulator group and 29 patients in the routine group were observed continuously for 3 days. During the study period, the number of tube shedding and the number of nursing errors were recorded. The average time required for the same dose of drugs to be pumped into the body was 10 ml/h, 25 ml/h and 50 ml/h, respectively. The average time spent by the nursing staff when the drugs were randomly changed or suspended was investigated in 52 cases. Staff satisfaction with its clinical application.@*Results@#The number of errors and tube shedding in the regulator group were 5 and 2 times respectively, and 34 and 9 times respectively in the routine group (P < 0.05). The time required for the regulator group to pump the same dose at the same rate was 295.33, 120.07 and 59.97 seconds, respectively. The time required for the conventional group was 294.63, 119.83 and 59.87 seconds, respectively, with no significant difference (P > 0.05). The average time needed for drug replacement or suspension was 47.05 seconds in the regulator group and 91.68 seconds in the routine group (P < 0.05). The satisfaction of the two groups was 84.98 and 94.5 respectively (P < 0.05).@*Conclusion@#Compared with the conventional group, the regulator group can reduce the workload of nurses without increasing the risk of clinical use. The regulator is a safe, reliable and convenient pump pipe management device for pumps.
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Objective A practical length regulator of extended tube for microinjection pump was made and its clinical effect was observed. The method and basis were provided for the orderly management of various infusion pipelines in clinic. Methods The texture, inner diameter and color of the regulator are designed. Sixty patients who needed to use three or more lengthened tubes at the same time and were pumped through the same vein passage were randomly divided into two groups: the regulator group and the non-regulator group. 31 patients in the regulator group and 29 patients in the routine group were observed continuously for 3 days. During the study period, the number of tube shedding and the number of nursing errors were recorded. The average time required for the same dose of drugs to be pumped into the body was 10 ml/h, 25 ml/h and 50 ml/h, respectively. The average time spent by the nursing staff when the drugs were randomly changed or suspended was investigated in 52 cases. Staff satisfaction with its clinical application. Results The number of errors and tube shedding in the regulator group were 5 and 2 times respectively, and 34 and 9 times respectively in the routine group (P < 0.05). The time required for the regulator group to pump the same dose at the same rate was 295.33, 120.07 and 59.97 seconds, respectively. The time required for the conventional group was 294.63, 119.83 and 59.87 seconds, respectively, with no significant difference (P > 0.05). The average time needed for drug replacement or suspension was 47.05 seconds in the regulator group and 91.68 seconds in the routine group (P<0.05). The satisfaction of the two groups was 84.98 and 94.5 respectively (P<0.05). Conclusion Compared with the conventional group, the regulator group can reduce the workload of nurses without increasing the risk of clinical use. The regulator is a safe, reliable and convenient pump pipe management device for pumps.
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Objective To analyze the problems found during the sampling inspection of the infusion and syringe pumps. Methods The present situation of the supervision of medical devices was explored,and statistical analysis was executed on the sampling inspection results of medical devices in 2016 to evaluate completely their quality and application.Results The medical devices had problems in uneven quality,low rate of coverage of sampling inspection,unreferencing YY 0709—2009 Medical Electrical Equipment-Part 1-8:General Requirements for Safety-Collateral Stanalard:General Requirements,Tests and Guidance for Alarm Systems in Medical Eleatriail Equipment and Medical Electrical Systems when registering product standard and technical requirements,external labeling,instruction manual and packaging.The qualification rate for sampling inspection was kept at low level in the past few years.Conclusion The supervision strategy is put forward for medical devices to enhance their overall quality.
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OBJECTIVE:To investigate the compatibility stability of Ulinastatin for injection with 2 commonly used solvents in the infusion pump.METHODS:After Ulinastatin for injection 500 000 U was respectively added into 0.9％ Sodium chloride injection and 5％ Glucose injection 50 mL,the appearance of the mixture at 25 ℃,37 ℃ were observed at 0,1,2,4,8,12,24 h,re spctively,pH value and the number of insoluble particles were measured.The relative percentage of ulinastatin in the mixture was determined by HPGFC.RESULTS:Under this condition,the appearance and pH value of the mixture had no significant change within 24 h;the number of particles ≥10 μm was lower than 25 particle/mL,and that ≥25 μm was lower than 3 particle/mL,which was in line with the pharmacopeia standard.The relative percentage of ulinastatin within 24 h ranged 99.45％-102.55％.CONCLUSIONS:After mixed with 0.9％ Sodium chloride injection and 5％ Glucose injection,Ulinastatin for injection keep stable within 24 h at 25 ℃,37 ℃ and can be used for continuous administration in the infusion pump.
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Objective To analyze the risk factors of the infusion pump to provide evidence-based basis for its safety management and monitoring.Methods Totally 1 000 pieces of questionnaires were issued for 100 infusion pumps from 9 grade-A tertiary hospitals in Beijing.The abnormalities and the correlation between the indexes were analyzed for the infusion pump,the indexes were compared on their effects on the abnormalities.Results Statistical analysis on data samples showed that the main factors included the manufacturer of infusion pump and pipeline,service time of infusion pump,compatibility between infusion pump and pipeline as well as the user department.Conclusion The management facility has to pose emphases on safety and utilization management as well as standardized application of the infusion pipeline so as to reduce adverse events efficiently.
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INTRODUCTION: This project was started after patient’s complaints of increased cost burden on patients with increase stay of patient in hospital for chemotherapy administration for 3–4 days, how to decrease this hospital stay and financial burden and how can we improve services to decrease hospital stay and expedite the process of chemotherapy administration. METHODS: A total of 100 patients’ confidential files reviewed from February 12, 2013 to May 15, 2013, patients, who were admitted for chemotherapy administration only in inpatient area and all services timings, were reviewed and documented on sheet named as delays chemotherapy sheet, nine processes timings checked against their benchmarks. RESULTS: All services process timings analyzed and compared with their benchmarks, results of all services timings are nearly close to benchmark except lab test results of patients who were admitted without labs test for chemotherapy administration delays seen in collecting blood sample and sending this sample to the laboratory, significant delay is seen in chemotherapy order entry by physician if patient is admitted after 4 p.m. for chemotherapy administration. Delays also identified in administration of chemotherapy. CONCLUSION: After identifying the reasons of delays in chemotherapy administration, improvement and innovation in chemotherapy administration process done which not only decrease hospital stay, but also decrease the cost of chemotherapy administration.
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Dentists often sedate patients in order to reduce their dental phobia and stress during dental treatment. Sedatives are administered through various routes such as oral, inhalation, and intravenous routes. Intravenous administration has the advantage of rapid onset of action, predictable duration of action, and easy titration. Typically, midazolam, propofol or dexmedetomidine are used as intravenous sedatives. Administration of these sedatives via infusion by using a syringe pump is more effective and successful than infusing them as a bolus. However, during intravenous infusion of sedatives or opioids using a syringe pump, fatal accidents may occur due to the clinician's carelessness. To prevent such risks, smart syringe pumps have been introduced clinically. They allow clinicians to perform effective sedation by using a computer to control the dose of the drug being infused. To ensure patient safety, various alarm features along with a drug library, which provides drug information and prevents excessive infusion by limiting the dose, have been added to smart pumps. In addition, programmed infusion systems and target-controlled infusion systems have also been developed to enable effective administration of sedatives. Patient-controlled infusion, which allows a patient to control his/her level of sedation through self-infusion, has also been developed. Safer and more successful sedation may be achieved by fully utilizing these new features of the smart pump.
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Humans , Administration, Intravenous , Analgesics, Opioid , Dental Anxiety , Dentists , Dexmedetomidine , Hypnotics and Sedatives , Infusion Pumps , Infusions, Intravenous , Inhalation , Midazolam , Patient Safety , Propofol , SyringesABSTRACT
To discuss the ultrasonic testing intelligent infusion pump tubing bubble method. When the ultrasonic wave goes through the interface of two different media, the reflection occurs, refraction, transmission and other physical phenomena can occur because of a large extent acoustic impedance difference between water and air, which can be used in this physical phenomenon, by monitoring the ultrasonic energy (output voltage) can be obtained if the extent of the presence of bubbles and bubble exists within the infusion tube. By measuring the penetration of ultrasonic energy, we detected air bubbles within the infusion line. Ultrasound can accurately detect air bubbles in the infusion line, which is the main method of detecting air bubbles for infusion pump.
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Antecedentes: La diabetes en el embarazo se asocia a un incremento considerable en la morbimortalidad materna, fetal y perinatal. Objetivo: Determinar los desenlaces maternos, fetales y perinatales de las gestantes con diagnóstico de diabetes pre gestacional en manejo con bomba de insulina en el Hospital Universitario San Ignacio. Método: Estudio de corte transversal en 24 gestantes con diagnóstico de diabetes en manejo con bomba de insulina quienes asistieron a control por Endocrinología y Alto Riesgo Obstétrico en el Hospital Universitario San Ignacio, entre Septiembre de 2009 y Diciembre de 2015. Resultados: La complicación materna más frecuente fue la hipoglicemia sintomática (50%), en segundo lugar los trastornos hipertensivos asociados al embarazo (45,8%). Las complicaciones neonatales más frecuentes fueron el síndrome de dificultad respiratoria del recién nacido (37,5%) y la hiperbilirrubinemia (37,5%). La hemoglobina glicosilada mayor del 6% se relacionó con el 71% de pacientes con macrosomía fetal. Conclusiones: La bomba de infusión de insulina representa una estrategia relativamente nueva dentro de los protocolos de manejo de diabetes pre gestacional y embarazo. Representaría una opción de manejo segura y fácil para el control de la glicemia en pacientes con indicaciones precisas.
Background: Diabetes in pregnancy is associated to a considerable increase in the maternal, fetal and perinatal morbidity and mortality. Objective: Determine the maternal, fetal and perinatal outcomes of patients with pre gestational diabetes being treated with insulin pump at Hospital San Ignacio. Methods: Cross-sectional study of 24 patients diagnosed with diabetes being treated with insulin pump who assisted to controls made by Endocrinology and Obstetrical High-Risk units at Hospital San Ignacio from September 2009 to December 2015. Results: The most common maternal complication was symptomatic hypoglycemia (50%) followed by hypertensive disorders of pregnancy (45.8%). Most common neonatal complications were respiratory distress syndrome (37.5%) and hyperbilirubinemia (37.5%). Glycosylated hemoglobin higher than 6% was related with 71% of patients who developed fetal macrosomia. Conclusions: The insulin infusion pump is a relatively new strategy management of pre gestational diabetes and pregnancy. Representing a safe and easy option for glycemic control in patients with precise indications.
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Humans , Female , Diabetes Mellitus, Type 2/complications , Pregnancy Complications/epidemiology , Pregnancy Outcome/epidemiology , Colombia , Cross-Sectional Studies , Diabetes Mellitus, Type 2/drug therapy , Diabetes, Gestational , Epidemiology, Descriptive , Infusion Pumps , Insulin/administration & dosageABSTRACT
Objective To compare the cleaning effect of before and after improvement of P′750 type endoscopic infusion pump sensing infusion. Methods 240 cases of urinary calculi patients were divided into experimental group (120 cases) and control group (120 cases) according to the random number table method. Experimental group made improvements on P′750 type endoscopic infusion pump sensing infusion, Took latex transmission pipe, sampling module, metal fittings and parenteral nutrition infusion bags, disposable connecting pipe connection, and surgery using improved sensing infusion. The control group used unimproved sensing infusion. Results Visual inspection of cleaning pass rate before and after improvement sensing infusion were 85.83% (103/120), 99.17% (119/120), 5 times with light magnifier inspection were 78.33%(94/120), 97.50% (117/120), tampons method inspection were 75.83% (91/120), 95.83% (115/120), ATP bioluminescence monitoring were 70.83% (85/120), 91.67% (110/120), dry pass rate were 90.83%(109/120), 100.00% (120/120), cleaning and drying pass rate were significantly improved (χ2=18.296, 29.159, 32.986, 40.976, 11.528, all P<0.01). Cleaning time before and after improvement sensing infusion were (1 020.40±8.22) s, (539.30±8.70) s. Dry time were (1 199.35±26.70) s, (61.50±5.79) s. Cleaning and drying time were significantly shortened (t=440.340, 456.206, all P<0.01). Conclusion Improvement sensing infusion increased the quality of cleaning and drying, shortened the cleaning and drying time, ensured the quality of surgery using equipment, improved work efficiency, and provided a guarantee for the safe and smooth implementation of the surgery.
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Objective To compare the effect of application of constant speed injection pump and manual injection on hysterosalpi-nography (HSG).Methods A total of 220 infertile patients were selected and classified into experimental group and control group. Then the patients were scheduled to undergo HSG.The experimental group was undergone constant speed pump injection and control group manual injection.Observe the effectiveness of the two methods on patients in two groups,respectively.Results The excellent rate of the images in experimental group (94.55%)was significantly higher than the control group (85.45%)and the risk of adverse reactions were significantly decreased in the former.There was statistical difference between the two groups.Conclusion Constant speed infusion pump is a convenient,safe and effective method in hysterosalpinography compared with manual injection,which is worthy of application in clinic.
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Objective To explore the effect of wash pipe frequency on complications of double-lumen power peripherally inserted central catheter (PICC) connected to infusion pump during continuous chemotherapy. Methods A total of 160 patients with malignant lymphoma whose PICC connected to infusion pump were divided into 4 groups by random digits table method with 40 cases each: flushing and sealing the tube once every 4 hours(group A), every 8 hours(group B), every 12 hours(group C) and every 24 hours (group D). The incidence of blocking pipe and phlebitis were observed. Results The incidence of blocking pipe were 0,2.5%(1/40) , 27.5%(11/40), 42.5%(17/40) in group A, B, C, D, the differences among them were significant, χ2= 30.870, P0.05. Conclusions Flushing and sealing the tube of PICC connected to infusion pump once every 8 hours during continuous chemotherapy seems to be appropriate and worthy of being applied clinically due to its low blocking pipe incidence, and low incidence of phlebitis.
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This report describes the long term safety and efficacy of intrathecal therapy using Sufentanil for the management of chronic intractable neuropathic pain in 12 chronic pain patients. Standardized psychological screening was used to determine treatment suitability. Evaluation data included the Visual Analog Scale (VAS), Wong-Baker Faces Scale, Brief Pain Inventory (BPI), Disability of Arm, Shoulder, and Hand (DASH), McGill Quality of Life Questionnaire, and complications (granulomas, toxicity, withdrawal, or deaths). SPSS version 18 was used for data analysis. Pre- and post- treatment BPI measures and pain scale scores showed a statistically significant difference. There were no complications directly related to drug toxicity, nor drug withdrawals, granulomas, or deaths. Intrathecal therapy with Sufentanil therapy offers a good treatment alternative for those cases that have failed both surgery and standard pain treatment. Strict patient selection based on psychological screening, control of co-morbidities, a proper pain management may contribute to successful outcome.
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Humans , Arm , Chronic Pain , Drug-Related Side Effects and Adverse Reactions , Granuloma , Hand , Infusion Pumps, Implantable , Mass Screening , Neuralgia , Pain Management , Pain, Intractable , Patient Selection , Quality of Life , Surveys and Questionnaires , Shoulder , Statistics as Topic , Sufentanil , Visual Analog ScaleABSTRACT
JUSTIFICATIVA E OBJETIVOS: Anestesia regional é uma técnica de uso comum em procedimentos ortopédicos. A sedação deve reduzir a ansiedade e o medo do paciente e aumentar a qualidade da anestesia regional. Este estudo avaliou as alterações hemodinâmicas, o nível de sedação e de satisfação tanto dos pacientes quanto dos cirurgiões e os potencias efeitos colaterais da sedação controlada pelo paciente com o uso de propofol. MÉTODOS: Selecionamos 60 pacientes, estado físico Asa I-III e agendados para artroplastia total do joelho sob anestesia combinada raqui-peridural. Os pacientes do Grupo P (n = 30) receberam propofol por meio de um dispositivo de analgesia controlada pelo paciente com as seguintes configurações: dose de propofol em bolus de 400 µg.kg-1 por via intravenosa (IV), com intervalo de bloqueio de cinco minutos e sem infusão basal. Os pacientes do Grupo S receberam infusão de solução salina (150 mL), com as mesmas configurações. Para determinar o nível de sedação, o índice bispectral (BIS) e a Escala de Avaliação de Alerta e Sedação dos Observadores (OAA/S) foram usados. O número de solicitações foi registrado para todos os pacientes. Como avaliação final, a satisfação dos cirurgiões e dos pacientes foi registrada em escala de 4 pontos. RESULTADOS: Os valores de BIS e da OAA/S foram menores no Grupo P que no Grupo S. A satisfação dos pacientes foi maior no Grupo P, embora não tenha havido diferença significativa em relação à satisfação dos cirurgiões entre os grupos. O número de solitações de sedação foi significativamente maior no Grupo S. Contudo, a maioria das solicitações não foi considerada bem-sucedida. CONCLUSÃO: Este estudo sugere que a analgesia controlada pelo paciente com o uso de propofol pode ser usada com resultados eficazes em procedimentos ortopédicos.
BACKGROUND AND OBJECTIVES: Regional anesthesia is a commonly used technique in orthopedic procedures. Sedation should reduce the patient's anxiety and fear while increasing regional anesthesia quality. This study evaluated the hemodynamic changes, level of sedation, both patients' and surgeons' levels of satisfaction and potential side effects in patient-controlled sedation using propofol. METHODS: This randomized clinical trial studied sixty ASA physical class I-III patients scheduled for total knee replacement surgery under combined spinal-epidural anesthesia. Patients in Group P (n = 30) received propofol via a patient-controlled analgesia device with the following settings: intravenous propofol bolus dose 400 µg.kg_1, 5-minute lockout interval and no basal infusion. In Group S, we infused saline 150 using the same settings. To determine the level of sedation, we used BIS and Observer's Assessment of Alertness/ Sedation Scale. For all patients, we recorded the number of requests. As the final evaluation, we scored surgeons' and patients' satisfaction on 4-point scales. RESULTS: Both BIS values and OAA/S scores were lower in Group P than in Group S. Patients' satisfaction was higher in Group P, although there was no significant difference with respect to surgeons' satisfaction between the groups. The number of requests for sedation was significantly higher in Group S. However, most requests were considered unsuccessful. CONCLUSION: This study suggests that patient-controlled sedation with propofol can be used efficiently in orthopedic procedures.
JUSTIFICATIVA Y OBJETIVOS: La anestesia regional es una técnica de uso común en los procedimientos ortopédicos. La sedación debe reducir la ansiedad y el miedo del paciente y aumentar la calidad de la anestesia regional. Este estudio evaluó las alteraciones hemodinámicas, el nivel de sedación, los niveles de satisfacción tanto de los pacientes como de los cirujanos y los potencias efectos colaterales de la sedación controlada por el paciente con el uso de propofol. MÉTODOS: Seleccionamos 60 pacientes, estado físico Asa I-III programados para la artroplastia total de la rodilla bajo anestesia combinada raquiepidural. Los pacientes del Grupo P (n = 30) recibieron propofol por medio de un dispositivo de analgesia controlada por el paciente con las siguientes configuraciones: dosis de propofol en bolo de 400 µg.kg-1 vía intravenosa (IV), con un intervalo de bloqueo de cinco minutos y sin infusión basal. Los pacientes del Grupo S recibieron infusión de solución salina (150 mL), con las mismas configuraciones. Para determinar el nivel de sedación, usamos el índice bispectral (BIS) y la Escala de Evaluación del Índice de Alerta y Sedación del Observador (EAIASO). El número de solicitaciones fue registrado para todos los pacientes. Como evaluación final, la satisfacción de los cirujanos y de los pacientes fue registrada en escala de 4 puntos. RESULTADOS: Los valores de BIS y de la Evaluación del Observador de Guardia (OAA/S) fueron menores en el Grupo P que en el Grupo S. La satisfacción de los pacientes fue mayor en el Grupo P, aunque no haya habido diferencia significativa con relación a la satisfacción de los cirujanos entre los grupos. El número de solicitaciones de sedación fue significativamente mayor en el Grupo S. Sin embargo, la mayoría de las solicitaciones no fue considerada exitosa. CONCLUSIONES: Este estudio sugiere que la analgesia controlada por el paciente con el uso de propofol puede ser usada con resultados eficaces en procedimientos ortopédicos.
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Aged , Female , Humans , Male , Middle Aged , Anesthesia, Conduction/methods , Conscious Sedation/methods , Orthopedic Procedures/methods , Anesthesia, Epidural , Anesthesia, Spinal , Arthroplasty, Replacement, Knee/methods , Hypnotics and Sedatives , PropofolABSTRACT
El uso de dispositivos médicos en el hogar, originalmente diseñados para uso hospitalario, ha aumentado. Su uso es complejo e inseguro debido a la inexperiencia del usuario y el entorno no controlado. El objetivo de este estudio es evaluar la seguridad en el uso de este tipo de dispositivos a través de la creación de un modelo conceptual que identifica los riesgos que podrían surgir para un grupo de usuarios inexpertos que los operan. A través de un estudio de usabilidad y siguiendo la metodología Grounded Theory se identificaron problemas y errores que emergen a través del uso en el hogar de dos dispositivos médicos distintos con la finalidad de crear un modelo conceptual. El modelo conceptual obtenido es representado en una herramienta de evaluación, que permite a los interesados identificar el dispositivo médico más apropiado para un usuario específico, detectando las debilidades que pueden llevar a un uso inseguro. La herramienta creada efectivamente permite detectar las características de riesgo, considerando cada situación particular de uso.
The use of medical devices in the home environment, originally designed for hospital use has increased. Its use is complex and uncertain because of the inexperience of the lay user and the uncontrolled environment. The objective of this study is to evaluate the safety in the use of these devices through the creation of a conceptual model that identifies the risks that could arise for a group of lay users who operate them. Through a usability study and following the Grounded Theory methodology problems and errors were identified emerging through the home use of two different medical devices in order to create a conceptual model. The conceptual model obtained is reified as an evaluation tool that allows stakeholders to identify the most suitable medical device for a specific user, detecting the weaknesses that may lead to an unsafe use. The evaluation tool created effectively allows detecting risky characteristics, considering the particular situation of use.
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Objective: The theory and repair summary of infusion pump were introduced to improve its maintenance and usage by taking SK-600I infusion pump as an example. Methods:With the cases from practical works including faults such as under-pressure alarm, bubble alarm, block alarms and rate accuracy problem, true or fault respectively, the principle, maintenance, attention issues, fault analyses and repairing methods of infusion pump were presented. Results:To help operators and technicians deal with all kinds of pump failures. Some advices on improving theSK-600I infusion pump design were provided. Conclusion: Infusion pump is a high intelligent medical device, but improper use, mechanical and electrical fault will put adverse impact on its application. Mastering the basic principles, summarizing practical experiences, strengthen operator training, can make better use of infusion pump.
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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.