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Friction is a genuine issue in the use of many medical devices involving rubbery materials such as plungers in medical syringes. This paper presents a new direction for the reduction of friction in medical syringes based on surface texturing of the rubber plunger. The specimens were prepared by casting poly(vinylsiloxane) (PVS) rubber into a pre-fabricated negative template obtained by 3D printing. Friction tests were performed on a home-made test-rig. It was clearly shown that friction resistance can be considerably manipulated when using textured plungers.


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Rubber plunger surface texturing for friction reduction in medical syringes

Show Author's information Haytam KASEM1,2( )Harel SHRIKI1Lihi GANON1Michael MIZRAHI3Kareem ABD-RBO1,3Abraham J. DOMB3
Department of Mechanical Engineering, Azrieli College of Engineering, Jerusalem 9103501, Israel
Tribology Laboratory, Department of Mechanical Engineering, Technion, Haifa 32000, Israel
School of Pharmacy, Faculty of Medicine, the Hebrew University, Jerusalem 9103501, Israel

Abstract

Friction is a genuine issue in the use of many medical devices involving rubbery materials such as plungers in medical syringes. This paper presents a new direction for the reduction of friction in medical syringes based on surface texturing of the rubber plunger. The specimens were prepared by casting poly(vinylsiloxane) (PVS) rubber into a pre-fabricated negative template obtained by 3D printing. Friction tests were performed on a home-made test-rig. It was clearly shown that friction resistance can be considerably manipulated when using textured plungers.

Keywords: friction, syringe, rubber, plunger, surface texturing, medical syringes

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Publication history
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Publication history

Received: 16 November 2017
Revised: 27 March 2018
Accepted: 21 June 2018
Published: 10 October 2018
Issue date: August 2019

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© The author(s) 2019

Acknowledgements

The negative templates for the casting of textured plungers were prepared at the Center for Functional and 3D Printing, at the Hebrew University of Jerusalem. The experimental test-rig was funded by Maof Fellowships, the Council for Higher Education of Israel (Dr. H. Kasem), and the MIA program the Ministry of Science, Technology & Space (Prof. A. Domb).

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