Measurements of blood pressure inside a ventricular assist device

• Autorzy: Mocha J. , Sobotnicki A. , Czerw M.
• Języki publikacji: EN

Abstrakty

EN

Information about blood pressure at the inflow and outflow connectors as well as inside a Ventricular Assist Device (VAD) supplemented with information about pressures inside the pneumatic part enables to adjust operational parameters of the VAD in the optimum manner. Practical implementation of a method that makes it possible to measure blood pressure at plurality of points is a really sophisticated task in terms of technical and technological issues. On one hand it is mandatory to assure appropriate metrological properties of the entire measurement path, on the other hand the measuring transducers must be reliably separated from blood. Internal surfaces of these VAD parts that come in direct contact with blood must be smooth and uniform; it is extremely essential due to a risk of blood coagulation on any unevenness of surfaces. The paper presets the solution for measurements of blood pressure inside the VAD, where the suggested solution meets the assumed metrological criteria as well as very stringent safety requirements.

Słowa kluczowe

EN

artificial heart; ventricular assist device (VAD); blood pressure measurement; separated pressure sensors

PL

sztuczne serce; urządzenia wspomagające pracę komór; pomiar ciśnienia krwi; rozdzielone czujniki ciśnienia

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2011
• Tom: Vol. 17
• Strony: 287--293
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Mocha J.

• Institute of Medical Technology and Equipment ITAM, 118, Roosevelt Str., Zabrze, Poland

autor

Sobotnicki A.

autor

Czerw M.

Bibliografia

• [1] FERRARI G., KOZARSKI M., DE LAZZARI C., GÓRCZYŃSKA K., DAROWSKI M., TOSTI G., Development of Hybrid (Numerical-Physical) Models of the Cardiovascular System: Numerical-Electrical and Numerical Hydraulic Applications, Biocybernetics and Biomedical Engineering, Vol. 25, No. 4, 2005, pp. 3-15.
• [2] FUJIKURA, FPBS Data Sheet, http://www.fujikura.co.jp/eng/products/electronic/sensor/data/fpbs_e.pdf, access: 30.07.2011.
• [3] GAWLIKOWSKI M., PUSTELNY T., KUSTOSZ R., The physical parameters estimation of physiologically worked heart prosthesis, Journal de Physique IV, Vol. 137, France, 2006, pp. 73-78.
• [4] GAWLIKOWSKI M., PUSTELNY T., KUSTOSZ R., Selected problems of mechanical heart supporting automation, European Physical Journal, Vol. 154, No. 5, 2007, pp. 65-69.
• [5] GAWLIKOWSKI M., PUSTELNY T., KUSTOSZ R., The methods of physical parameters measurement regarding the heart supporting automation, European Physical Journal, Vol. 154, No. 5, 2007, pp. 71-76.
• [6] GE SENSING, NPC-100 Series NovaSensor Disposable Medical Pressure Sensors, www.gesensing.com, 2006.
• [7] PELTRON, Przetwornik ciśnienia: Seria NPX, http://www.peltron.home.pl/pub/npx.pdf, access: 30.07.2011 (in Polish).
• [8] ROMER E., Miernictwo przemysłowe, PWN, Warszawa, 1978 (in Polish).