The respirator as a user of virtual lungs

• Autorzy: Gólczewski T. , Kozarski M. , Darowski M.
• Języki publikacji: EN

Abstrakty

EN

The virtual respiratory system (VRS) is proposed for testing physical respirators, new methods of ventilatory support, and scientific hypotheses. VRS may be also helpful in students education and staff training. Method: VRS simulates the relationship between the air flow and the pressure. The main features of the model are: separation of the lungs and the chest, division of the lungs into five lobes, closing bronchi, gravity influence. Real-to-virtual converter is based on the gas flow source, which is controlled by the calculated value of the air flow that should exist, for the measured pressure being the VRS input. Results: several phenomena are discussed, e.g. the influence of compliance nonlinearity and resistance changeability on ventilation, the CPAP efficiency, differences in lobes ventilation, breathing frequency determination.

Słowa kluczowe

EN

breathing frequency; lungs; respirator; ventilatory support; virtual reality

PL

częstotliwość oddechu; płuca; respirator; wspomaganie oddychania

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2003
• Tom: Vol. 23, no. 2
• Strony: 57--66
• Opis fizyczny: Bibliogr. 4 poz., rys., wykr.

Twórcy

autor

Gólczewski T.

• Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland

autor

Kozarski M.

• Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland

autor

Darowski M.

• Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland

Bibliografia

• [1] Darowski M., Kozarski M., Golczewski T.: Model studies on respiratory parameters for different lung structures. Biocybernetics and Biomedical Engineering 2000, 20, 67-77.
• [2] Nunn I.F.: Clinical respiratory physiology 3rd Ed. Butterwoths, London 1987.
• [3] Trzebski A.: Fizjologia człowieka z elementami fizjologii stosowanej i klinicznej. PZWL, Warszawa 1990.
• [4] Bates J.H.T., Milic-Emili J.: Influence of the viscoelastic properties of the respiratory system on the energetically optimum breathing frequency. Annals of Biomedical Engineering 1993, 21, 489-499.