Last leaf / Kleiderbügel Ringer-Lösung

There is a problem that a patient receiving an injection of Ringer’s solution or a nurse should frequently check the time that the injection solution is run out of and should be exchanged. The ‘Last Leaf’ notifies the time that the Ringer’s solution should be exchanged by utilizing a weight sensor and LED. As the weight of Ringer’s solution gets lighter, LED gradually gets brighter, and finally, a call signal is sent to a nurse. Also, this utilizes texture of wood hanger of Ringer’s solution delivers a sense of stability to patients, and the light of emotional LED conveys ‘Hope’, which is a message of ‘Last leaf’(Henry, O.), to patients.