WSEAS Transactions on Biology and Biomedicine
Print ISSN: 1109-9518, E-ISSN: 2224-2902
Volume 21, 2024
Defining Elements of Roller Pump Occlusion in Cardiopulmonary Bypass Surgery
Authors: , , , , ,
Abstract: In surgery, centrifugal pumps are used when safety and biocompatibility are priorities. On the other hand, when considering operability and economy, roller pumps are used. The roller pump occlusion has to pay attention to the long-time operation causing axis displacement; Our study carried out that perfusion temperature executed the technology as a rule factor of the occlusion. To evaluate the manifestation of the circumference of the occlusion, we used three kinds of different roller diameters and measured perfusion temperature (Pt) and the electrical resistivity (Er), a pressure degree of the occlusion. Based on Japan Industrial Standard -T1603, we observed the differences between the three pumps with degree of the occlusion which we were setting in the same condition as a change of the occlusion by the progress at a time. Pt and Er repeated the up-down motion in three pumps every 30-60 minutes. In addition, the occlusion extended the interval in progress at a time. The pressure level of the sensor rose every 30 minutes and became unmeasurable afterward. This phenomenon affects that perfusion temperature changes influence the blood viscosity and, we suppose that it influenced a rise in para-blood temperature and it appeared in pressure change and Er of the occlusion. Therefore, control of the Pt leads to the appropriate control of the roller pump and we will be able to carry out physiological extracorporeal considering an indispensable element as SDGs.
Search Articles
Keywords: Occlusion, Perfusion Temperature (Pt), Electrical Resistivity (Er), Circumferential runout, Pressure sensor, Blood cell destruction, Mechanical fracture
Pages: 148-154
DOI: 10.37394/23208.2024.21.15