ECG interference suppressed using a harmonic generator.

Davie, W J; Fowler, M J; Koumoundouros, E

Davie, W J; Fowler, M J; Koumoundouros, E.

Afiliación

Davie WJ; Department of Clinical Engineering, Royal Melbourne Hospital, Melbourne Victoria, Australia. jack.davie@mh.org.au

Australas Phys Eng Sci Med ; 32(3): 159-64, 2009 Sep.

Article en En | MEDLINE | ID: mdl-19873940

RESUMEN

Non-linear loading of the utilities supply introduced significant electromagnetic field (EMF) interference severe enough to disrupt electrocardiograph (ECG) monitoring and recordings in the new Emergency Department (ED) at the Royal Melbourne Hospital (RMH). This interference was evident even though standard Mu-metal shielding had been installed over the main hospital power feed which runs underneath the department. Investigations revealed that the source of the interference was due to 3rd harmonic currents flowing in the mains cable. This interference was suppressed by introducing third harmonic current into the main power cable in anti-phase to the interfering signal.

Asunto(s)

Suministros de Energía Eléctrica; Electrocardiografía/instrumentación; Campos Electromagnéticos; Electrónica Médica; Servicio de Urgencia en Hospital; Análisis de Falla de Equipo; Humanos

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Suministros de Energía Eléctrica / Electrocardiografía / Campos Electromagnéticos Límite: Humans Idioma: En Revista: Australas Phys Eng Sci Med Año: 2009 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Países Bajos

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