Patent ID: 6128519
Filing Date: 2000-10-03
Classification: A61B

Abstract:
A sensor assembly comprising:a catheter including a catheter sheath adapted for insertion in a patient, and a catheter hub connected to the catheter sheath;an adapter connected to the catheter hub, the adapter including first and second ports;a pump;a first flow line extending between the adapter and the pump, the first flow line being connected to the first port of the adapter;a sensor positioned along the first flow line;a container for holding a calibration fluid, the calibration fluid including a calibrant adapted for use in calibrating the sensor;a second flow line extending between the adapter and the container, the second flow line being connected to the second port of the adapter; andthe adapter defining first and second separate passages, the first passage extending from the first port to an interior region of the catheter sheath, and the second passage extending from the second port to an interior region of the catheter hub.