SYMPOSIA PAPER Published: 01 October 1979
STP35938S

Life Testing of Vascular Prostheses

Source

A real-time in-vitro life tester for vascular prostheses has been developed and demonstrated. The existing tester can be used for initial testing of new materials and structures for vascular prostheses, minimizing expensive and difficult long-term animal implants. The in-vivo/in-vitro data suggest that a mechanical fatigue mode of failure must be investigated for new types of vascular prostheses. The short-term data achieved to date indicate that the most commonly used vascular prostheses material, Dacron yarn, initially loses some strength but then appears to stabilize. Teflon yarn, in a textile structure, demonstrates a slight gain in strength. Long-term explant data confirm these observations.

Author Information

Botzko, K
USCI Surgical Products, Billerica, Mass
Snyder, R
USCI Surgical Products, Billerica, Mass
Larkin, J
Albuquerque Veterans Administration Hospital, Albuquerque, N. Mex.
Edwards, WS
University of New Mexico School of Medicine, Albuquerque, N. Mex.
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Details
Developed by Committee: F04
Pages: 76–88
DOI: 10.1520/STP35938S
ISBN-EB: 978-0-8031-4751-5
ISBN-13: 978-0-8031-0313-9