Pulse wave sensors with improved noise immunity.

Reviewed in this article are the principle of operation and design features of the pulse wave sensors realizing the method of space-oriented differentiation for the noninvasive arterial pressure meters which can measure pressure during the physical tests of a patient. Disclosed are the test results and procedure for checking the pulse wave sensors using the nonstandard means of measurement.

[Assisted circulation during electrostimulation of the heart].

In the course of the assisted circulation combined with the electrocardiostimulation the comparative study has been carried out to estimate the following conditions of the cardiosynchronization for an assisted circulation device: a) at the R-wave on the patient's electrocardiogram, b) at the R-wave on the ECG when an artefact from the electrocardiostimulation is previously "cut", c) when the electrocardiostimulation pulse is used as that of the cardiosynchronization. A system for the assisted circulation is proposed where the cardiosynchronization is realized by a separator of the R-waves for the ECS, thus providing consistent cardiosynchronization under conditions of both electrocardiostimulation and restoration of the cardiac rhythm.