| Autor: |
Horita, Motoshi, Mekata, Tsuyoshi, Matsuura, Kohki, Yamamoto, Gaishi, Murata, Shuichi, Iwata, Takashi |
| Jazyk: |
japonština |
| Rok vydání: |
1983 |
| Zdroj: |
金沢大学工学部紀要 = Memoirs of the Faculty of Technology Kanazawa University. 16(2):75-88 |
| ISSN: |
0022-832X |
| Popis: |
The laser microbubble detector that measures the size and number of microbubbles in extracorporeal blood flow circuit of medical surgery is reported. The microbubbles are mixed into the human blood circuit by using oxygenators during operations. The microbubble detector will be applied for investigation of the influence of the mixed air bubbles on the activity of the human brain. When a microbubble in the blood flow passes through the region where the laser beam irradiates, the intensity of the transmitted laser light changes because of the light scattering by the bubble. The change is detected by a photodetector as a spike waveform. The shape and height of the waveform indicates the size of the microbubble and the number of spike shows the number of microbubbles. The correlation between the size of microbubble and the pulse height of the spike wave is calculated and caribrated experimentally. The performances of arterial line filters were measured by the microbubble detector and this result is also reported. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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