A computerized system to evaluate volumetric infusion pumps

被引：0

作者：

Kobayashi, S. ^{[1
]}

Ogata, T. ^{[1
]}

机构：

[1] Seishin-Igaku Institute, Tokyo Musashino Hospital, 4-11-11, Komone, Itabashi-ku, Tokyo, Japan

来源：

Biomedical Instrumentation and Technology | 1992年 / 26卷 / 06期

关键词：

Computer applications - Pumps - Sensors - Strain gages;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A computerized system was developed to examine the performance characteristics of infusion pumps. This system collects solution delivered by an infusion pump through an intravenous needle into a collection vessel. Using an inductor-type weight sensor and a semiconductor type of strain-gauge pressure sensor, the weight of the collection vessel and the pressure at the needle were monitored over a specific period (the sampling time), and changes in pressure, flow rate, and volume of fluid were calculated. This system was applied to five volumetric infusion pumps with different pumping mechanisms. Test conditions involved two different solutions, two sizes of needle gauge, and seven flow rates, for a total of 28 measurements per pump. Results showed considerable variation in the infusion pumps' performances based on differences in these indices. Use of an inductance weight sensor as a means to evaluate gravimetric performance appears to be an improvement over conventional methods, which use analytical balances for data generation. The results indicate that this system will be useful in evaluating the performances of commercially available infusion pumps as well as those in development.

引用

页码：485 / 491