Patent ID: 8821432

Claim:
An infusion device comprising: a pathway adapted to receive tubing; at least one pump adjacent the pathway, the at least one pump altering the pathway to pump fluid through the tubing when the tubing is received in the pathway; and a first bubble sensor positioned adjacent the pathway; a second bubble sensor positioned adjacent the pathway and spaced from the first bubble sensor, the first and second bubble sensors configured to detect a bubble in the fluid being pumped through the tubing; and at least one processor in communication with the first and second bubble sensors, the at least one processor programmed to determine that the first bubble sensor detects at least one bubble, determine whether the second bubble sensor detects at least one bubble, and to generate an alarm condition only when the first bubble sensor and the second bubble sensor detect the same at least one bubble, wherein the first and second bubble sensors are provided within a housing of the infusion device, and wherein the first and second bubble sensors comprise a single sensing device having a split sensing beam.