抄録
In this paper we analyzed the results of our experiment on a thermal-type blood flow micro-sensor that was designed to detect the flow rate change caused by a thrombus.
An animal experiment was performed to evaluate this sensor using a rabbit model. The sensor was inserted into a small vessel directly or through its branches. The temperature inside the vessel rose in 10 seconds when the vessel was clamped and it dropped in 3 seconds when the vessel was opened. The sensor was able to monitor the changes in blood flow immediately. Similar results were observed when the sensor was inserted in a vein. The high sensitivity of the sensor, the flow velocity in the range of 0-1 cm/s, enables the detection of blood flow reduction caused by thrombus formation in a vein. This sensor can be a useful device in clinical settings because it can detect clot formation at the anastomosis.
