Corrosion and degradation of a polyurethane/Co-Ni-Cr-Mo pacemaker lead

Journal Article · Tue Dec 01 00:00:00 EST 1987 · J. Biomed. Mater. Res.; (United States)

OSTI ID:5428047

Sung, P; Fraker, A C

An investigation to study changes in the metal surfaces and the polyurethane insulation of heart pacemaker leads under controlled in vitro conditions was conducted. A polyurethane (Pellethane 2363-80A)/Co-Ni-Cr-Mo (MP35N) wire lead was exposed in Hanks' physiological saline solution for 14 months and then analyzed using scanning electron microscopy, x-ray energy dispersive analysis, and small angle x-ray scattering. Results showed that some leakage of solution into the lead had occurred and changes were present on both the metal and the polyurethane surfaces.

• Research Organization: Center for Devices and Radiological Health, Food and Drug Administration, Rockville, MD (USA)
• OSTI ID: 5428047
• Journal Information: J. Biomed. Mater. Res.; (United States), Vol. 21
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CARDIAC PACEMAKERS
CORROSION
CHROMIUM
HEALTH HAZARDS
COBALT
MOLYBDENUM
NICKEL
ALLOYS
PERMEABILITY
POLYURETHANES
SCANNING ELECTRON MICROSCOPY
SCATTERING
X-RAY EMISSION ANALYSIS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
ELECTRON MICROSCOPY
ELEMENTS
HAZARDS
MATERIALS
METALS
MICROSCOPY
NONDESTRUCTIVE ANALYSIS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYAMIDES
POLYMERS
SYNTHETIC MATERIALS
TRANSITION ELEMENTS
560300* - Chemicals Metabolism & Toxicology