R - Drip Stand / concept for drip stand

Current patients need to pay attention on their saline bags carefully, so we want to redesign a new drip stand, which has a LED alarm in order to automatically remind the nurse station. Our inspiration is from the scale. When the full saline bag is hung on the drip stand, the hanger will be in the lowest location. And with the weight of saline bag reduction, the hanger will rise slowly approaching a location, which is close to balance. Then the LED alarm will remind the nurse station so as to help the patient. Finally, the nurse can be easy to find the patient in need of help among a lot of patients in the transfusion room.