Software for Thromboelastograph "NPTEG Mednord"

The purpose of research was to develop software for the hardware and software complex of low-frequency piezothromboelastography "NPTEG Mednord", designed for bedside assessment of the functional state of the hemostasis system using the patient's native blood (whole blood studies in Point-of-care test mode).

Methods. The software development of the complex consisted of software for the microcontroller of the device and user software. The article presents the results of the development of algorithms for data processing and software development for the hardware and software complex of low-frequency piezothromboelastography "NPTEG Mednord". The main software solutions for collecting and processing data from a piezoelectric sensor that registers changes in the aggregate state of native venous blood are considered.

Results. An example of a control command designed to link the hardware and software parts of the complex is given. The main attention in the article is paid to the software for a personal computer that controls the hardware, processes primary data, displays the curve of the blood clotting process in real time (changes in the viscosity of the clot over time), obtaining reference points, and selecting design parameters. The interface of the developed application is presented, indicating the main tabs necessary for the work of doctors. Vascular-platelet hemostasis was assessed in conditionally healthy volunteers of the Siberian population in real time using a piezothromboelastograph "NPTEG Mednord" with the developed software. A correlation analysis of the selected parameters of a low-frequency piezothromboelastogram with existing methods of studying the hemostasis system was performed.

Conclusion. The developed software "Gemo-5" is designed to work as part of the hardware and software complex "NPTEG Mednord", registered as a medical device (No. RZN 2020/12855). The software of the complex includes: microcontroller software, user part, DBMS. The software of the hardware and software complex allows you to evaluate 21 parameters of the hemostasis system, including continuous monitoring of the state of the hemostasis system (on-line).

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