公开(公告)号：US20240337508A1

公开(公告)日：2024-10-10

申请号：US18625827

申请日：2024-04-03

Applicant: INSULET CORPORATION

Inventor： David SEWARD ,  Ehsan HAJISAEID ,  Kyle BREINGAN ,  Ayden HENSON

IPC: G01D5/165 ,  A61M5/315 ,  G16H20/13

CPC classification number: G01D5/165 ,  A61M5/31568 ,  G16H20/13

Abstract: In an aspect, a system for determining a liquid level in a drug delivery device is presented. The system includes a first spring and a second spring positioned adjacent the first spring. The system includes a rod configured to compress at least the first spring and contact the second spring. The system includes a sensing element in communication with the first spring and the second spring. The sensing element is configured to detect a difference in voltage of at least the first spring. A difference in voltage of at least the first spring corresponds to an amount of liquid drug of the drug delivery device.