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Single-use biomedical sensors

A biomedical, sensor technology, applied in the field of electrodes

Active Publication Date: 2012-07-04
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, biosignal measurement sensor electrodes with a high salt content may often have a limited shelf life (maximum storage time before use), for example due to drying of the gel in the electrode, and also due to changes that may occur in the sensor material.

Method used

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  • Single-use biomedical sensors

Examples

Experimental program
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Embodiment Construction

[0026] Electrodes used to measure biological signals from a recording surface (e.g. patient's skin) may be referred to as 'wet' electrodes with electrolyte present on the contact surface attached to the skin. 'Wet' electrodes can be attached to the skin using conductive liquids, hydrogels, or solid gels (e.g., electrolyte gels) to improve the recording surface and electrode sensing elements (e.g., silver / silver chloride (Ag / AgCl) Conductivity between electrode layers). Typical components of a conductive gel may include water (which acts as a solvent); a water-soluble monomer which cross-links to provide the gel's structure and which can also provide skin adhesion; a moisturizing material which relieves the conductive gel and an electrolyte or salt, such as sodium chloride (NaCl) or potassium chloride (KCl) dissolved in water, which provides ionic conductivity. One advantage of conductive gels over other conductive electrolytes is that they can be removed cleanly from the skin...

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Abstract

A disposable self-powered biomedical sensor comprises a printed wet electrode on a substrate sheet. The wet electrode is provided with an electrolyte element to enhance the electrical contact with a surface to be measured. Moreover, a printed battery encapsulated in a hermetically sealed compartment is provided on the substrate sheet. The disposable self-powered sensor can be stored within an enclosure or a package which provides a proper atmosphere to prevent the drying of the electrolyte and prolong the shelf life of the sensors.

Description

technical field [0001] The present invention generally relates to electrodes for acquiring biological signals from a recording surface, such as the skin of a subject. Background technique [0002] When monitoring vital signs or other physiological parameters of a patient admitted to a hospital, sensors are attached to the patient's skin or catheters are inserted into a natural opening in the body or the catheter penetrates the skin. It is common practice to connect these sensors to the measuring instrument with electrically conductive or optically conductive cables. The instrument can be placed at the bedside (eg, a multi-parameter patient monitor in the operating room (OR) or intensive care unit (ICU)) or it can be a smaller box that is carried by the patient (eg, an ECG telemeter). [0003] Recent technological developments have made it possible to develop battery-powered sensors that include means for performing the actual measurement, converting the measured signal to d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/04A61B5/296
CPCA61B5/0408A61B5/04087A61B5/0006A61B5/0492A61B2560/0412A61B5/0478A61B5/6833A61B2562/164A61B2562/125A61B2562/0215A61B2562/0217A61B5/259A61B5/25A61B5/291A61B5/296
Inventor A·K·A·伊罗斯塔罗J·P·维尔塔宁
Owner GENERAL ELECTRIC CO
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