| 摘要 |
Disclosed is an instrument for measuring living body components, which has (i) a fine tube (1) having at one end thereof a connection portion (13) to be connected to an indwelling needle (2) or indwelling catheter and an infusion portion (14), from which at least a blood anticoagulant solution can be infused, (ii) a fine linear sensor (3) for measuring living body components, extended from the interior of the fine tube to the outside through the connection portion (13), and (iii) a mechanism (4, 8, 9) for introducing blood at least into the interior of a fine tube portion of the indwelling needle (2) or catheter intermittently or periodically when the indwelling needle (2) or catheter is connected to the fine tube (1) and kept in the blood vessel, and then discharging blood into the blood vessel (43). A sensing portion (31) of the sensor (3) is located within the fine tube portion (21) of the indwelling needle (2) or catheter when the indwelling needle or catheter is connected to the connection portion (13) of the fine tube (1). |
