Investigation of fatigue failure of S-65-HL "Super Tygon" roller pump tubing.
A failure analysis was performed on Norton S-65-HL Tygon tubing. Fatigue testing was performed on four sizes of this tubing, and essentially showed how the tubing wears out. A dynamic "life hours to failure" test, which was performed on the 3/8" internal diameter (ID) size, quantified when the tubing ruptured. Based on results of laboratory testing and the institution's clinical extracorporeal membrane oxygenation (ECMO) experience, a reasonable life expectancy for the 3/8" S-65-HL Tygon size was determined for use in this institution's neonatal ECMO system. An understanding of the expected performance of roller pump tubing-an integral component of the ECMO system-is imperative to providing safe, effective extracorporeal life support.
Snyder
E J
EJ
Thomas Jefferson University Hospital, Department of Biomedical Instrumentation, Philadelphia, PA 19107, USA.
McElwee
D L
DL
Harb
H M
HM
Cullen
J A
JA
Tackel
I S
IS
Baumgart
S
S
Iskandarani
B
B
Elkind
A
A
Shaker
M
M
D004548:Elasticity; D004868:Equipment Failure; D005112:Extracorporeal Circulation / Q000295:instrumentation; D015199:Extracorporeal Membrane Oxygenation / Q000295:instrumentation*; D006801:Humans; D007231:Infant, Newborn; D015931:Intensive Care, Neonatal; D007440:Intubation / Q000295:instrumentation*; D008020:Life Support Care / Q000295:instrumentation; D008422:Materials Testing; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D013997:Time Factors