APPARATUS AND METHOD FOR DETERMINING THE LIQUID LEVEL OF SALVAGED BLOOD IN A BLOOD COLLECTION RESERVOIR OF AN AUTOLOGOUS BLOOD TRANSFUSION SYSTEM

摘要

The liquid level for disclosing determining device and method remedies blood in the autotransfusion system (20) of blood collection container (11), it includes that periodically sensed level remedies blood in the blood collection reservoir (11) to sensing device (10,12), and export corresponding signal, and determine that the means (2) of liquid level remedy blood in the blood collection container (11), based on the output signal, the sensing device. The sensing device includes that multiple optical transmitting sets (12) are arranged in first side, the transmitting light (L1-L9) and multiple optical receivers (10) at the blood collection reservoir (11) horizontal place at various height are arranged second side in the different height level (L1-L9), that the blood collection container (11) sensing opposite with first side is emitted by the optical transmitting set (12) and be transmitted through the blood collection reservoir (11). The parameter of optical setup is for detecting and signal analysis, can individually adjust and dynamic, so that bothering effect for example can be identified prevention by the blood collection reservoir (11) of absorbent films inner surface, to enhance the signal detection and analysis of reliability.