| 摘要 |
PURPOSE:To measure urine components in high accuracy over a long period without inflicting an injury on a patient, by using a three-way connection tube provided with a drainage tube conecting a catheter with a drainage vessel. CONSTITUTION:Urine in the urinary bladder is flowed to a drainage vessel 19 through a catheter inserted into the urinary bladder of a patient passing through the first drainage tube 25. When the sampling is started rotating a roller pump 11 to a direction (a), a chuck valve 27a of a three-ways connection valve 27 is opened and the urine is sampled in a sample vessel 17. The urine housed in the vessel 17 is measured in a measuring apparatus 13. After the measurement is finished, the pump 11 is rotated to an arrowed direction (b) and a chuck valve 27b is released and then, the urine in a sampling tube 7 etc. is discharged from the second drainage tube 29. |
