Occlusion measurement system

Solution for real-time monitoring and controlling of occlusion

Overview

Hemolysis is one of the major blood trauma in extracorporeal circulation. The occlusion is a parameter to eliminate deteriorative blood trauma as well as to improve assisted circulation efficacy during cardiopulmonary bypass (CPB). The strength of occlusion is adjusted manually in common method currently used, so the variation or deterioration of roller pumps or tubes causes hemolysis or multiple organ failure.

The present invention relates to a new occlusion simulation model for evaluating the occlusion by the thickness of the flow in the tubing compressed with the CPB roller and raceway. The red-colored densitometry images were used to calculate the thickness of occluded flow channel.

Occlusion measurement system

Product Application

□Extracorporeal circulation apparatus
(Artificial cardiopulmonary device, Dialysis device, etc.)
・Control the strength of occlusion properly
・Real-time monitoring of occlusion

Related Works

[1] 2020 Volume Annual58 Issue Abstract Pages 266
[2] Journal of Artificial Organs. 24(1):27-35. 2021.

IP Data

IP No.　 ： JPA 2022-40976
Inventor ： T. Yambe, Y. Shiraishi, A. Fukaya, A. Yamada, Y. Inoue
keyword ： cardiopulmonarybypass, occlusion, medicaldevice