Determination of the acoustic output of a harmonic scalpel.
IEEE Trans Ultrason Ferroelectr Freq Control
; 49(11): 1522-9, 2002 Nov.
Article
em En
| MEDLINE
| ID: mdl-12484475
ABSTRACT
The acoustic output of a harmonic scalpel was experimentally determined, and both the airborne ultrasound and the ultrasound transmitted in water were taken into account. The sound pressure level of airborne ultrasound was measured with a microphone and an artificial head, so that the free-field value and the sound level at the entrance at the bottom of the cavum conchae of the ear could be determined. The derived output power in water was obtained from a hydrophone measurement. The results were strongly influenced by cavitation effects, and it is shown that the power values with and without cavitation differ by more than a factor of 5. The measurement of acoustic output parameters forms the basis for describing the performance of the devices and for an assessment of the risk of harmful bioeffects on both the operator and the patient.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Instrumentos Cirúrgicos
/
Terapia por Ultrassom
/
Ultrassom
/
Monitoramento Ambiental
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
IEEE Trans Ultrason Ferroelectr Freq Control
Assunto da revista:
MEDICINA NUCLEAR
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Alemanha