Japanese Journal of Extra-Corporeal Technology, volume 51, issue 2, pages 129-137

Investigation of a method for the electrical measurement of venous reservoir blood volume ─ secondary publication （complete translation） ─

Atsushi Nakamura ¹

Eiki Kogure ¹

Masaru Inoue ²

Katsuyuki Kuwana ²

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Department of Clinical Engineering, Faculty of Health Sciences, Kyorin University |

Senko Medical Instrument Mfg. Co., Ltd.

Publication type: Journal Article

Publication date: 2024-06-26

The Japanese Society of Extra-Corporeal Technology in Medicine

Journal: Japanese Journal of Extra-Corporeal Technology

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ISSN: 09122664, 18845452

DOI: 10.7130/jject.51.129

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Abstract

Blood volume in the venous reservoir (VR) is an important parameter that should be continuously monitored in patients with a cardiopulmonary bypass. In this study, we investigated the effects of measurement frequency, hematocrit (Ht), and blood volume on the capacitance (Cs) of blood present in the venous reservoir by utilizing electrical properties of polycarbonate, a material used in VR.