Rubber plunger surface texturing for friction reduction in medical syringes
- 53 Downloads
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.
Keywordssyringe rubber plunger surface texturing friction medical syringes
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).
- Rabinowitz E. Friction and Wear of Materials. 2nd ed. New York (USA): John Wiley & Sons, 1995.Google Scholar
- Thirion P. Les coefficients d’adherence du caouchouc. (in French). Rev Gen Caoutch 23: 101 (1946)Google Scholar
- Schallamach. How does rubber slide? Wear 17(4): 301–312 (1971)Google Scholar
- Gross J R. Low friction syringe. U.S. Patent 5 397 313A, Mar. 1995.Google Scholar
- Merry J D. Low friction syringe. U.S. Patent 4 26557A, May 1981.Google Scholar
- Etsion I, Halperin G, Ryk G. J Balkan Tribol Assoc 6: 72–77 (2000)Google Scholar
- Tuma J. U.S. Patent 20070063375 A1. 2007.Google Scholar
- Reynolds O. On the theory of lubrication and its applications. Proc R Soc Lond Ser A-Math Phys Eng Sci 40: 191–203 (1886)Google Scholar
- Stachowiak G W, Batchelor A W. Engineering Tribology. Boston (UK): Butterworth Heinemann, 2001.Google Scholar
- Williams J A. Engineering Tribology. Oxford (UK): Oxford University Press, 1994.Google Scholar
- Cameron A, Ettles C M M. Basic Lubrication Theory. Chichester: Ellis Horwood Ltd., 1983.Google Scholar