FLUID LEVEL DETECTOR FOR AN INFUSION FLUID CONTAINER

摘要

A fluid level sensing assembly includes a clamp that securely clamps a fluid level detector in place on a rigid walled infusion container, to minimize movement during use of the infusion container and fluid level detector. The fluid level detector includes a light sensor array and a light source. The light sensor array is positioned vertically relative to a side wall and senses light at various points vertically along the light sensor array. The light source is positioned vertically relative to the side wall and projects light linearly through a vertical portion of the side wall. An incidence angle a of the light source relative to the side wall is selected such that a light beam emitted by the light source is reflected when a transmission path of the light beam intersects either a side wall/fluid interface or a side wall/air interface.