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Journal of Long-Term Effects of Medical Implants
SJR: 0.332 SNIP: 0.491 CiteScore™: 0.89

ISSN Print: 1050-6934
ISSN Online: 1940-4379

Journal of Long-Term Effects of Medical Implants

DOI: 10.1615/JLongTermEffMedImplants.v11.i12.60
9 pages

Biomechanical Performance of New Cardiovascular Needles

John G. Thacker
Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia
Robert E. H. Ferguson, Jr.
Department of Plastic Surgery, University of Virginia School of Medicine, Box 800376, Charlottesville, VA 22908
George T. Rodeheaver
Plastic Surgery Research Program, Department of Plastic Surgery, University of Virginia Health System, Charlottesville, VA, USA
Richard Edlich
Legacy Verified Level I Shock Trauma Center Pediatrics and Adults, Legacy Emanual Hospital; and Plastic Surgery, Biomedical Engineering and Emergency Medicine, University of Virginia Health System, USA

ABSTRACT

Cardiovascular needles are now being manufactured from new stainless steel alloys containing high concentrations of nickel, Surgalloy™ and Ethalloy™. The purpose of this study was to compare the biomechanical performance of a cardiovascular needle made of Surgalloy with a comparably sized needle made of Ethalloy. The parameters of biomechanical performance included sharpness, maintenance of sharpness, resistance to bending, and ductility. Because the biomechanical performance of these needles was remarkably similar, cardiovascular needles made of either the Surgalloy or Ethalloy alloys are recommended for cardiovascular surgery.