| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the influence of the emboss processed condition of a drainage bag for accommodating drainage from peritoneum dialysis by equipping at least two sets of turbidity measuring parts each consisting of luminous elements, diffused light receiving elements, and a transmitted light receiving element installed on the optical axis of the luminous elements. SOLUTION: When a turbidity is to be measured, luminous elements 104, 105 are actuated one by one, and the output of a diffused light receiving element of high angle (40deg.) is subtracted from the output of diffused light receiving element of low angle (20deg.), and the obtained difference outputΔV is measured together with the output Vt of a transmitted light receiving element, andΔV/Vt is subjected to comparison. If the output level is equal substantially, judgment is such that there is no influence of emboss processing. If difference inΔV/Vt between two turbidity measuring parts is large, it is judged so that the measuring part with greater output level has the luminous element in the embossed surface and that the one with smaller signalΔV/Vt is correct.
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