Abstract
To record the rate of change of the pressure in the chambers of the heart requires manometric systems with a uniform frequency characteristic curve in the region of relatively high frequencies. The best results can be obtained by the use of intracavitary pressure transducers, not requiring the use of catheters. This paper describes the design of a miniature intracavitary pressure transducer operating like a strain gauge. If used in conjunction with a tensometric amplifier and loop oscillograph a uniform frequency characteristic curve can be obtained up to 800 Hz.
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Moibenko, A.A., Golov, D.A. & Grabovskii, L.A. A miniature transducer for recording the intraventricular pressure and its first derivative. Bull Exp Biol Med 79, 83–85 (1975). https://doi.org/10.1007/BF00805513
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DOI: https://doi.org/10.1007/BF00805513