公开(公告)号：US20230310685A1

公开(公告)日：2023-10-05

申请号：US18041633

申请日：2021-08-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Wensheng XIA ,  Naiyong Jing ,  G. Marco Bommarito

IPC: A61L2/28

CPC classification number: A61L2/28

Abstract: A sensor device. The sensor device includes a sterilant-responsive switch comprising: a circuit; a conductive polymer having a first state and a second state, and a polymeric binder; and wherein the sterilant-responsive switch connects the circuit in the first state and disconnects the circuit in the second state, and wherein the conductive polymer is capable of being converted from being in the first state to being in the second state when in contact with a sterilant.

公开(公告)号：US20220184262A1

公开(公告)日：2022-06-16

申请号：US17601966

申请日：2020-04-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Wensheng XIA ,  Naiyong Jing ,  Kara A. Meyers ,  Ankit Mahajan ,  Benjamin J. Münstermann ,  Nicholas T. Gabriel ,  G. Marco Bommarito ,  Daniel J. Theis ,  Roger W. Barton ,  Mikhail L. Pekurovsky

IPC: A61L2/28 ,  A61L2/07

Abstract: Aspects of the present disclosure relate to a sensor device having an integrated circuit and a monitoring loop coupled to the integrated circuit. The monitoring loop includes a first conductive trace and a second conductive trace, each having a first end electrically coupled to the integrated circuit and a second end. The monitoring loop includes a sterilant-responsive switch electrically coupling the second ends of the first conductive trace and the second conductive trace. The sterilant-responsive switch has a first impedance state and a second impedance state. The sterilant-responsive switch modifies an electrical connection between the first conductive trace and the second conductive trace based on exposure to an adequate environmental condition in an adequate sterilization process. The sensor device also includes an antenna coupled to the integrated circuit forming an antenna loop that is distinct from the monitoring loop.