Biomaterial Database

Effect of repeat use and coating defects of gold foil electrodes on electroretinogram recording. 1995

V A Wong, and S L Graham

Department of Ophthalmology, University of British Columbia, Vancouver, Canada.

Qualitative defects and resistances in 94 used gold foil electrodes were examined. The electrodes were divided into four groups of varying resistances and gold coating defects. Ten were randomly selected from each group to measure standard photopic electroretinograms (ERGs) in a normal subject. Ten new electrodes were used as controls. There was no significant difference among the electrode groups for ERG peak implicit times or amplitudes, although a slightly greater amplitude variability was observed for the groups with more defects. Provided the resistance of the electrode is low ( < 5 omega), its reuse at least for ganzfeld ERGs appears warranted regardless of apparent coating defects.

UI	MeSH Term	Description	Entries
D004566	Electrodes	Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.	Anode,Anode Materials,Cathode,Cathode Materials,Anode Material,Anodes,Cathode Material,Cathodes,Electrode,Material, Anode,Material, Cathode
D004596	Electroretinography	Recording of electric potentials in the retina after stimulation by light.	Electroretinographies
D004868	Equipment Failure	Failure of equipment to perform to standard. The failure may be due to defects or improper use.	Defects, Equipment,Device Failure,Failure, Equipment,Malfunction, Equipment,Medical Device Failure,Misuse, Equipment,Device Failure, Medical,Device Failures, Medical,Failure, Medical Device,Failures, Medical Device,Defect, Equipment,Device Failures,Equipment Defect,Equipment Defects,Equipment Failures,Equipment Malfunction,Equipment Malfunctions,Equipment Misuse,Equipment Misuses,Failure, Device,Failures, Device,Failures, Equipment,Malfunctions, Equipment,Misuses, Equipment
D006046	Gold	A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts.
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D017097	Electric Impedance	The resistance to the flow of either alternating or direct electrical current.	Bioelectrical Impedance,Electric Resistance,Impedance,Ohmic Resistance,Biolectric Impedance,Electrical Impedance,Electrical Resistance,Impedance, Bioelectrical,Impedance, Biolectric,Impedance, Electric,Impedance, Electrical,Ohmic Resistances,Resistance, Electric,Resistance, Electrical,Resistance, Ohmic,Resistances, Ohmic
D017743	Equipment Reuse	Further or repeated use of equipment, instruments, devices, or materials. It includes additional use regardless of the original intent of the producer as to disposability or durability. It does not include the repeated use of fluids or solutions.	Product Recycling,Recycling, Equipment,Equipment Reusability,Equipment Recycling,Recycling, Product,Reusability, Equipment,Reuse, Equipment