Intracardiac Catheter Microphone
- 1 March 1958
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 29 (3) , 238-240
- https://doi.org/10.1063/1.1716156
Abstract
A microphone is described that can be encased in a small‐bore plastic catheter. The small size permits insertion directly into the heart and the precise localization of the origin of heart sounds. The unit uses a two‐section piezoelectric ceramic, operated in a bender mode. The frequency response is flat up to 3000 cps. The sensitivity over the flat frequency range is −124 db referred to 1 v/μbar.Keywords
This publication has 2 references indexed in Scilit:
- Acoustic Mapping within the HeartThe Journal of the Acoustical Society of America, 1957
- Die Sondierung des Rechten HerzensJournal of Molecular Medicine, 1929