OCCLUSION SENSING FOR AN INFUSION PUMP

摘要

Some embodiments of an infusion pump system may include an occlusion sensor that can be used to detect when an occlusion exists in the fluid path between the medicine reservoir and the infusion site on the user's skin. Such an occlusion may occur, for example, when the fluid flow line (e.g., a cannula, infusion set tubing, or the like) is kinked. If the medicine dispensation path to the user is occluded, the user may receive no dosage or a lower dosage of the medicine. As such, the occlusion sensor can be used to indicate when the fluid is flowing or not flowing, thereby permitting the infusion pump system to communicate an alarm to the user if an occlusion exists.

主权项

1. An occlusion sensor system for an infusion pump system including a reusable controller device that is removably attachable to a disposable single-use pump device, the occlusion sensor system comprising:
a light emitter and a light sensor arranged in the reusable controller device, the light emitter and the light sensor being in electrical communication with control circuitry of the reusable controller device; and a light transmissive member arranged in the disposable single-use pump device, the light transmissive member being aligned with the light emitter and the light sensor when the reusable controller device is removably attached to a disposable single-use pump device, wherein the light sensor receives light from the light emitter that is internally reflected by the light transmissive member.