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A Comparative Pulse Accuracy Study of Two Commercially Available Patch Insulin Infusion Pumps
Jenna L Bowen1, Chris J Allender1
1School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK.
European Endocrinology
|April 11, 2018
Summary
This study compared the accuracy of two insulin patch pumps. Results show significant differences in pulse accuracy between the Cellnovo and OmniPod devices, highlighting the importance of pumping mechanisms.
Area of Science:
- Endocrinology
- Biomedical Engineering
- Medical Devices
Background:
- Insulin patch pumps represent a novel approach to insulin delivery for diabetes management.
- Accurate insulin delivery is critical for maintaining glycemic control and preventing complications.
Purpose of the Study:
- To conduct a comparative analysis of the pulse accuracy between two distinct insulin patch pump systems.
- To evaluate the impact of different pumping mechanisms on device precision.
Main Methods:
- Micro-gravimetric evaluation was employed to assess the accuracy of insulin delivery from two patch pump devices: Cellnovo and OmniPod.
- Pulse accuracy was determined by analyzing both single and time-averaged insulin pulses for each device.
Main Results:
- A higher percentage of single pulses from the OmniPod fell outside accuracy thresholds (±5% to ±30%) compared to the Cellnovo device.
- For averaged pulse windows (10, 20, and 40 pulses), the Cellnovo demonstrated significantly better accuracy (mean values outside ±15%) than the OmniPod.
Conclusions:
- The study demonstrates variability in accuracy among insulin patch pump technologies.
- The specific pumping mechanism utilized by a patch pump significantly influences its accuracy and precision in insulin delivery.
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