公开(公告)号：US20230148875A1

公开(公告)日：2023-05-18

申请号：US18052618

申请日：2022-11-04

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Zhixiong HOU ,  Rui LUO ,  Linan ZHAO ,  Matthew KENDALL ,  Yuyan WANG ,  Yan YU ,  Hui LI

IPC: A61B5/02 ,  A61B5/053 ,  A61B5/00

CPC classification number: A61B5/02042 ,  A61B5/053 ,  A61B5/746 ,  A61B5/742

Abstract: Devices, apparatuses, methods, and computer program products are provided for hemorrhage detection. An example sensing device for hemorrhage detection includes a blood selective layer that includes a permeable film and an iron selective conductive circuit supported by the permeable film. The sensing device further includes a controller operably coupled with the blood selective layer. The controller is configured to supply a current to the iron selective conductive circuit, determine an impedance of the iron selective conductive circuit responsive to blood received by the blood selective layer, and determine an amount of blood received by the blood selective layer based upon the determined impedance. The controller may further compare the determined impedance with an alert threshold and generate an alert signal in an instance in which the determined impedance satisfies the alert threshold.