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Article

3D Printing in the Design of Devices for Dosing Intramuscular Injections with Syringe

by
José Manuel Sierra
1,
Mª del Rocío Fernandez
1,*,
José Luis Cortizo
1 and
Paula Zurrón-Madera
2,3,4
1
Department of Mechanical Engineering, University of Oviedo, 33203 Gijón, Spain
2
Nursing Area, Department of Medicine, University of Oviedo, 33006 Oviedo, Spain
3
Health Research Institute of the Principality of Asturias (ISPA), 33011 Oviedo, Spain
4
Health Service of the Principality of Asturias, SESPA, 33001 Oviedo, Spain
*
Author to whom correspondence should be addressed.
J. Manuf. Mater. Process. 2025, 9(7), 229; https://doi.org/10.3390/jmmp9070229
Submission received: 22 May 2025 / Revised: 19 June 2025 / Accepted: 1 July 2025 / Published: 3 July 2025
(This article belongs to the Special Issue Innovative Rapid Tooling in Additive Manufacturing Processes)
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Abstract

This article describes the use of 3D printing as a tool for the design of a dosing device for intramuscular injections by nursing professionals. A device that is safer against accidental punctures, easy to use, and functional. After the analysis of the problem by a multidisciplinary team, which included nurses and engineers, a first basic prototype has been built for testing. In the process, software for solid modeling has been used; functional prototypes have been developed from the virtual models by rapid prototyping using fused deposition modeling technology (FDM), in Polylactic Acid (PLA) material, and have been tested to verify their mechanical properties and suitability for function. The project has developed a functional design that has been patented, and is in the clinical trials phase. This study demonstrates the efficacy of three-dimensional (3D) printing technologies to expedite the design process and build low-cost functional prototypes. The dosing and needle-protection mechanisms are driven by compression springs; the forces needed for both mechanisms were initially estimated through theoretical calculations and verified through empirical testing.
Keywords: rapid prototyping; functional prototypes; 3D printing in medicine rapid prototyping; functional prototypes; 3D printing in medicine

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MDPI and ACS Style

Sierra, J.M.; Fernandez, M.d.R.; Cortizo, J.L.; Zurrón-Madera, P. 3D Printing in the Design of Devices for Dosing Intramuscular Injections with Syringe. J. Manuf. Mater. Process. 2025, 9, 229. https://doi.org/10.3390/jmmp9070229

AMA Style

Sierra JM, Fernandez MdR, Cortizo JL, Zurrón-Madera P. 3D Printing in the Design of Devices for Dosing Intramuscular Injections with Syringe. Journal of Manufacturing and Materials Processing. 2025; 9(7):229. https://doi.org/10.3390/jmmp9070229

Chicago/Turabian Style

Sierra, José Manuel, Mª del Rocío Fernandez, José Luis Cortizo, and Paula Zurrón-Madera. 2025. "3D Printing in the Design of Devices for Dosing Intramuscular Injections with Syringe" Journal of Manufacturing and Materials Processing 9, no. 7: 229. https://doi.org/10.3390/jmmp9070229

APA Style

Sierra, J. M., Fernandez, M. d. R., Cortizo, J. L., & Zurrón-Madera, P. (2025). 3D Printing in the Design of Devices for Dosing Intramuscular Injections with Syringe. Journal of Manufacturing and Materials Processing, 9(7), 229. https://doi.org/10.3390/jmmp9070229

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