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Hydrogel pad

Grant US12575774B2 Kind: B2 Mar 17, 2026

Assignee

Welch Allyn, Inc.

Inventors

Shelby Michael Reed, Carlos Suarez, Thaddeus Wawro

Abstract

A hydrogel pad is configured for use with an electrode or a wearable device to measure vital signs of a patient. The hydrogel pad includes a flexible support having one or more openings in which hydrogel is disposed. A membrane covers one side of the hydrogel to protect it from gaining or losing too much moisture. A removable backing covers the other side of the hydrogel until it is applied to a patient, at which point the other side contacts the patient's skin. The protective membrane can be pierced by an angular conductive contact of a device to contact the hydrogel creating an electric conduit between the patient and the device. When the device is removed, the membrane at least partially closes to cover and protect the hydrogel.

CPC Classifications

A61B 5/259 A61B 5/282 A61B 5/6833 A61B 5/291 A61B 5/0006 A61B 5/257 A61B 2562/0217 A61B 2560/0412 A61B 5/28 A61B 2562/125 A61B 5/6814 A61B 5/266 A61B 5/6804

Filing Date

2021-04-26

Application No.

17240431

Claims

4