Back to Journals » Medical Devices: Evidence and Research » Volume 12

Injection And Infusion Technology Disruption For Use In MRI

Authors Kalmar M, Boese A, Landes R, Friebe M

Received 23 May 2019

Accepted for publication 18 September 2019

Published 28 November 2019 Volume 2019:12 Pages 469—478

DOI https://doi.org/10.2147/MDER.S216758

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Nicola Ludin

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser


M Kalmar, A Boese, R Landes, M Friebe

Intelligente Katheter INKA, Otto-Von-Guericke University Magdeburg, Magdeburg, Germany

Correspondence: M Kalmar
Intelligente Katheter INKA, Otto-von-Guericke University Magdeburg, Universitaetsplatz 2, Magdeburg 39106, Germany
Tel +49-391-67 57025
Email marco.kalmar@ovgu.de

Introduction: Contrast media injections, infusions, or experiments that require a constant volume flow close to or within a very high magnetic field like in magnetic resonance imaging (MRI) require a liquid reservoir and a power unit to deliver the fluid. However, most power units are driven by motors that are either not MRI-compatible or require external connections that restrict mobility and usage. In this paper, the development of a highly portable, lightweight, and MRI-compatible pump system is explained.
Methods: The energy required to deliver the flow is generated using a pressurized bottle concept. The valve inside the bottle is opened to create a flow which should be maintained constant. In order to find the optimal flow resistance for a constant flow rate, we created multiple setups with different flow resistance.
Results: We measured the flow rates for different flow resistances by attaching a restring valve to the bottle. The results clearly show that high flow resistance results in lower and more constant flow rate.
Discussion: The optimal flow rate achieved using our current setup was significantly constant but not ideal. Consequently, such a pump system can be used in many medical applications like MRI-compatible contrast agent injectors.

Keywords: MRI-compatible, pump system, pressure, fluid, constant flowrate, injection, infusion

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]