Measuring System with Compound Software Architecture for Measurement and Evaluation of Biosignals from Isolated Animal Hearts

Biomedical measuring system for acquisition, processing and evaluation of ECG signal, blood and perfusion pressure and drug dosage is introduced. Mentioned signals are obtained during experiments on small animal hearts making use of a Langendorff setup. The USB powered system is conceived as a virtual instrument with an external measuring unit controlled by a microprocessor and connected to a host computer with running application software. The novelty of the approach presented is purposeful compound architecture of the application software. For real-time data acquisition graphical programming language LabVIEW was used, due to the offered possibility of easier parallelization of processes. For off-line biophysical parameter analysis MATLAB, one of the most widely used signal processing tool, was applied.