Devices and Systems for Measuring Magnetic Fields
Summary
USPTO granted patent US12588848B2 to INSERM for a magnetic field measurement device designed for magnetocardiovascular applications. The invention uses ultrasensitive magnetic sensors capable of measuring weak fields in the sub-picotesla range with low-noise processing circuitry. The patent contains 19 claims covering the device design and measurement methods.
What changed
USPTO granted patent US12588848B2 to INSERM (Institut National de la Santé et de la Recherche Médicale, France) for a magnetic field measurement device and system. The patent covers ultrasensitive magnetic sensors operating in the sub-picotesla range suitable for magnetocardiovascular applications. Inventors include Quang Hung Tran, Férial Terki, Trung Kien Nguyen, Gudrun Boge, Sidina Wane, and Azzedine Bousseksou, with Application No. 18698987.
This patent grant establishes exclusive intellectual property rights but does not impose regulatory compliance obligations on other market participants. Companies developing similar magnetic field measurement technologies should review the 19 claims to ensure their products do not infringe on INSERM's patent. Medical device manufacturers in the cardiovascular diagnostics space may wish to explore licensing opportunities or design-around strategies.
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Mar 31, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Devices and systems for measuring magnetic fields
Grant US12588848B2 Kind: B2 Mar 31, 2026
Assignee
INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE)
Inventors
Quang Hung Tran, Férial Terki, Trung Kien Nguyen, Gudrun Boge, Sidina Wane, Azzedine Bousseksou
Abstract
The invention relates to a measurement device for measuring weak magnetic fields, such as fields in the sub-picotesla range (e.g. lower than a few nanotesla). The measurement device comprises ultrasensitive magnetic sensors (or arrays of ultrasensitive magnetic sensors) coupled to low-noise processing circuitry. The processing circuitry comprises a two-stage design including low-noise amplifiers and analog filters. The invention is suitable for magnetocardiovascular (MCV) applications thanks to its ability to measure very small magnetic fields with good accuracy and very little noise.
CPC Classifications
A61B 2560/0214 A61B 2562/0223 A61B 2562/182 A61B 5/0022 A61B 5/026 A61B 5/243 A61B 5/7203 A61B 5/7225 A61B 5/725 G01N 27/82 G01R 33/0029 G01R 33/07 G01R 33/09
Filing Date
2022-10-10
Application No.
18698987
Claims
19
Named provisions
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