Patent ID: 8562528

Claim:
An integrated sensor system for measuring an analyte in a sample of a host and for fluid infusion into the host, comprising: an analyte sensor configured and arranged for measuring an analyte concentration in a biological sample of a circulatory system of a host; a tubing assembly comprising tubing that is configured to be in fluid communication with a vascular access device configured to be in fluid communication with the circulatory system of the host; a flow control device configured to regulate exposure of the analyte sensor to the biological sample and to a reference solution according to a flow profile, wherein the flow control device comprises a valve, and wherein the valve is configured and arranged with a gravity flow position and a controlled flow position; and a free-flow mitigation device comprising a spring clip occluder located on the tubing assembly wherein the system is configured and arranged such that the free-flow mitigation device precludes flow responsive to at least one of power removal, loss of power to the system, and loss of power to the flow control device.