US 11,998,435 B2
Wound dressing with electrode multiplexing and related methods
Jais Ask Hansen, Jaegerspris (DK); Lars Erup Larsen, Maaloev (DK); Niels Hvid, Vedbaek (DK); and Finn Speiermann, Virum (DK)
Assigned to Coloplast A/S, Humlebaek (DK)
Filed by Coloplast A/S, Humlebaek (DK)
Filed on Mar. 14, 2019, as Appl. No. 16/352,839.
Prior Publication US 2020/0289346 A1, Sep. 17, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/24 (2021.01); A61B 5/251 (2021.01); A61B 5/257 (2021.01); A61B 5/282 (2021.01); A61F 13/00 (2024.01); A61F 13/84 (2006.01)
CPC A61F 13/84 (2013.01) [A61B 5/251 (2021.01); A61B 5/257 (2021.01); A61B 5/282 (2021.01); A61F 13/00055 (2013.01); A61F 2013/00655 (2013.01); A61F 2013/00961 (2013.01); A61F 2013/8482 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wound dressing comprising:
a first adhesive layer comprising a proximal surface configured for attachment of the wound dressing to a skin surface of a user;
an electrode assembly comprising a plurality of electrodes including a first set of first electrodes;
a monitor interface for forming a mechanical and electrical connection with a monitor device, the monitor interface comprising a coupling part and a plurality of terminals including a first terminal and a second terminal; and
a multiplexer comprising:
a first control pin connected to the second terminal of the monitor interface; and
a number of N input pins and a number of M output pins, wherein the N input pins include a first set of first input pins for connection to first electrodes of the first set of first electrodes, the first set of first pins including a first primary input pin and a first secondary input pin, and the M output pins include a first output pin,
wherein the first primary input pin is connected to a first primary electrode of the first set of first electrodes and the first secondary input pin is connected to a first secondary electrode of the first set of first electrodes, and the first output pin is connected to the first terminal of the monitor interface, and
wherein the multiplexer is configured to:
select a multiplexer configuration from a set of multiplexer configurations based on a first control signal received by the first control pin;
connect the first primary input pin to the first output pin in a first multiplexer configuration of the set of multiplexer configurations; and
connect the first secondary input pin to the first output pin in a second multiplexer configuration of the set of multiplexer configurations.