1.Comparative test on puncture coring of two different needles used with the implantable drug-supplying device.
Min WAN ; Ping WU ; Jinzi SONG ; Xin YU ; Pengtao MOU
Chinese Journal of Medical Instrumentation 2010;34(6):445-447
A comparison test on the number of puncture coring is conducted using the normal needle and the Huber needle in the injection area of the implantable drug-supplying device separately. The result indicates that the number of coring using the Huber needle is much less than that using the normal needle during the puncturing. So it is suggested to popularize the Huber needle in the drug transfusion of the implantable drug-supplying device.
Infusion Pumps, Implantable
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classification
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Needles
2.Some opinion on supply of solution for infusion in hospitals
Pharmaceutical Journal 2000;285(1):4-4
Today, the pharmaceutical departments of hospitals have still manufactured intravenous solution by backward equipments to use in hospital including the central hospitals. Therefore, the problem that using and supply the solutions, is anxiety of many person include health staffs and patients in areas when used such self supplied products.
Solutions
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Infusion Pumps
3.Discussion on testing of flow rate of infusion device about industry standard.
Chinese Journal of Medical Instrumentation 2014;38(4):292-294
Carried on the exploration testing of flow rate of infusion device about industry standard YY 0451-2010. Engaged in flow rate experiments adopting different method that are provided by new and old industry standard for samples of the same type. Compared with the result of the dangerous coefficient by calculating the test data, the old standard can be more sensitive to reflect the situation of product flow rate, so it can be applied to conventional control of the products. The method which provided by the new industry standard is suitable for evaluating periodicity the level of product contaminated.
Flowmeters
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Infusion Pumps
4.Optimization of Quality Control Efficiency of Infusion Pump.
Chinese Journal of Medical Instrumentation 2022;46(2):233-236
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.
Infusion Pumps
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Quality Control
5.Analysis and test of piezoelectric micropump for drug delivery.
Junwu KAN ; Ming XUAN ; Zhigang YANG ; Yihui WU ; Boda WU ; Guangming CHENG
Journal of Biomedical Engineering 2005;22(4):809-813
With a microsystem or micropump, the release rate of drug delivery is able to be controlled easily to maintain the therapeutic efficacy. A piezoelectric membrane-valve micropump for implantable and carryhome drug delivery system is developed and tested. The influence elements of dynamic performance of the PZT actuator and valve were analyzed, and the calculation method of resonant frequency of the membrane valve was provided. Study results showed that the output performance of the micropump depended on the coupling effect of the actuator and valve. For a given actuator, the output value and the optimal frequency of a micropump could be enhanced only by valve design. Two micropumps with different valve dimensions were fabricated for comparing examination. The smaller -valve micropump obtained higher output values (the maximum flow rate and backpressure being 3.5 ml/min and 27 KPa, respectively) and two optimal frequencies (800 Hz and 3 000 Hz). The larger -valve micropump achieved lower output values (the maximum flow rate and backpressure being 3.0 ml/min and 9 KPa, respectively) and one optimal frequency (about 200 Hz). The test results suggest that the output values and optimal frequency of micropump can be improved by changing the valve dimension, and the viewpoint that checkvalve micropump works only with low acting frequency is wrong.
Drug Delivery Systems
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instrumentation
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Equipment Design
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Humans
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Infusion Pumps, Implantable
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Micro-Electrical-Mechanical Systems
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instrumentation
6.A simulation design of a one-way micro valve for the micro engineering capsule.
Lan LUO ; Xiao-lin ZHENG ; Wen-sheng HOU ; Jian-guo CUI
Chinese Journal of Medical Instrumentation 2005;29(4):241-243
This paper proposes a one-way micro valve with a simple structure and a simulation design for the engineering capsule. We have now got its design parameter selection method and its mechanic characteristic from experiments.
Capsules
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Computer Simulation
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Drug Delivery Systems
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methods
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Equipment Design
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Infusion Pumps, Implantable
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Technology, Pharmaceutical
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instrumentation
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methods
7.Research on influence of different syringe types on quality control of syringe pump.
Hongyun LIU ; Hao HUANG ; Weidong WANG
Journal of Biomedical Engineering 2014;31(6):1316-1324
To evaluate the influence of different brands of syringes on performance parameters and application quality of syringe pump, we carried out matching experiment of infusion/syringe pump analyzer Rigel Multi-Flo, made by ALK Co. in Sweden, for 3 different types of syringes to measure the flow rate, occlusion alarm pressure, occlusion time and bolus volume of 26 syringe pumps. Data of quality control were analyzed with statistical method. The results demonstrated that there were significant differences in the flow rate, occlusion alarm pressure, occlusion time and bolus volume (P<0. 01) between those of common syringes and original syringes. This study points out that the health care providers should select compatible syringes for syringe pumps, which provides evidence and guidance to assure the reasonable and safe application of syringe pumps in clinical practice.
Infusion Pumps
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Quality Control
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Syringes
8.Efficacy evaluation of syringe pump developed for continuous drug infusion.
Bongsu JUNG ; Kwang Suk SEO ; Suk Jin KWON ; Kiyoung LEE ; Suyong HONG ; Hyounsoon SEO ; Gi Young KIM ; Geun Mook PARK ; Juhee JEONG ; Soowon SEO
Journal of Dental Anesthesia and Pain Medicine 2016;16(4):303-307
BACKGROUND: In dental intravenous sedation, continuous intravenous infusion of a low-dose drug requires an infusion pump such as a syringe pump. To develop a new syringe pump for clinical use, the functions of the pump must meet certain international standards. Various safety and efficacy tests must be performed on the syringe pump, as stipulated by these standards, and an approval must be received from the approving agency based on such test results. METHODS: The authors of the present study developed a novel syringe pump and performed efficacy evaluation by testing its infusion speed at 1 and 25 ml/h, and infusion performance testing at 2 and 24 h. Moreover, performance evaluation was conducted by comparing the novel pump to an existing pump with the infusion speed varied from 1 to 5 ml/h. RESULTS: In the efficacy testing on the newly developed syringe pump, infusion with the infusion speed initially set to 1 ml/h resulted in infusion speeds of 1.00 and 0.99 ml/h in the 2- and 24-h assessment, respectively. Changing the infusion speed setting to 25 ml/h resulted in an infusion speed of 25.09 and 23.92 ml/h in the 2- and 24-h assessment, respectively. These results show no significant differences when compared with other commercially available pumps. CONCLUSIONS: The efficacy testing of the newly developed syringe pump showed the accuracy to be within tolerance. Based on these findings, we believe that the newly developed syringe pump is suitable for clinical use.
Data Accuracy
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Infusion Pumps
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Infusions, Intravenous
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Syringes*
9.The Effects of Vehicle Movement/ Operation on Fluid Flow Regulators During Patient Transport.
Hyun Jae PARK ; Jung Weon LEE ; Sae Hoonn PARK ; Jae Woo KIM ; Young Soon CHO
Journal of the Korean Society of Emergency Medicine 2012;23(1):74-77
PURPOSE: Evaluation of the effects of a vehicle's movement/ operation on fluid flow regulators during patient transport. To determine whether or not vehicle trembling during idling and movement during patient transport are factors affecting the velocity of fluid injection. METHODS: The volume of fluid, as measured in an idling or moving vehicle, was evaluated using three different types of marketed flow regulators at three different injection speeds: 10, 20 and 40 ml/hr. RESULTS: In all cases, when the vehicle was idling or in motion, discrepancies were observed between the pre-calculated amount of fluid and the actual amount of fluid injected. However, a greater discrepancy was observed to exist in a moving vehicle. CONCLUSION: The trembling and movement of a vehicle during patient transport affects fluid injection results.
Fluid Therapy
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Humans
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Infusion Pumps
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Transportation of Patients
10.The Effects of Vehicle Movement/ Operation on Fluid Flow Regulators During Patient Transport.
Hyun Jae PARK ; Jung Weon LEE ; Sae Hoonn PARK ; Jae Woo KIM ; Young Soon CHO
Journal of the Korean Society of Emergency Medicine 2012;23(1):74-77
PURPOSE: Evaluation of the effects of a vehicle's movement/ operation on fluid flow regulators during patient transport. To determine whether or not vehicle trembling during idling and movement during patient transport are factors affecting the velocity of fluid injection. METHODS: The volume of fluid, as measured in an idling or moving vehicle, was evaluated using three different types of marketed flow regulators at three different injection speeds: 10, 20 and 40 ml/hr. RESULTS: In all cases, when the vehicle was idling or in motion, discrepancies were observed between the pre-calculated amount of fluid and the actual amount of fluid injected. However, a greater discrepancy was observed to exist in a moving vehicle. CONCLUSION: The trembling and movement of a vehicle during patient transport affects fluid injection results.
Fluid Therapy
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Humans
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Infusion Pumps
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Transportation of Patients