公开(公告)号：US20250067826A1

公开(公告)日：2025-02-27

申请号：US18812230

申请日：2024-08-22

Applicant: FieldLine Inc.

Inventor： Kenneth J. Hughes ,  Tyler L. Maydew

IPC: G01R33/54 ,  A61B5/00 ,  A61B5/245 ,  G01R33/48

Abstract: Various embodiments comprise a magnetic field detection system to control magnetometers. In some examples, the magnetic field detection system comprises a magnetometer controller. The magnetometer controller measures atomic resonance of a magnetometer. The magnetometer controller determines an error gain for the magnetometer based on the measured atomic resonance. The magnetometer controller applies the error gain to a measured error for the magnetometer and responsively calculates a control signal. The magnetometer controller adjusts the operation of the magnetometer based on the control signal.

公开(公告)号：US20240407694A1

公开(公告)日：2024-12-12

申请号：US18810395

申请日：2024-08-20

Applicant: Genetesis, Inc.

Inventor： Raj Muchhala ,  Emmanuel T. Setegn ,  Benjamin Donaldson Moore

IPC: A61B5/243 ,  A61B5/00 ,  A61B5/026 ,  A61B5/24 ,  A61B5/245 ,  G01R33/035 ,  G01R33/12 ,  G06N3/044 ,  G06N3/045 ,  G06N3/047 ,  G06N3/084 ,  G06N3/088 ,  G06N5/01 ,  G06N20/00 ,  G06N20/10 ,  G06N20/20 ,  G16H40/63 ,  G16H50/20 ,  G16H50/30

Abstract: Abnormalities in electromagnetic fields in the heart, brain, and stomach, among other organs and tissues of the human body, can be indicative of serious health conditions. Described herein are methods, software, systems and devices for detecting the presence of an abnormality in an organ or tissue of a subject by analysis of the electromagnetic fields generated by the organ or tissue.

公开(公告)号：US12127842B2

公开(公告)日：2024-10-29

申请号：US17403029

申请日：2021-08-16

Applicant: Genetesis, Inc.

Inventor： Vineet Erasala ,  Jon Von Stein ,  Tatiana Sedlak ,  Julia Prince

IPC: A61B5/243 ,  A61B5/245 ,  G01R33/26

CPC classification number: A61B5/243 ,  A61B5/245 ,  G01R33/26 ,  A61B2562/0223

Abstract: Devices and systems as described herein is configured to sense a signal, such as a signal from an individual. In some embodiments, a signal is a magnetic field. In some embodiments, a source of a signal is an individual's organ, such as a heart muscle. A device or system, in some embodiments, comprises one or more sensors, such as an array of sensors configured to sense the signal. A device or system, in some embodiments, comprises a shield or portion thereof to reduce noise and enhance signal collection.

公开(公告)号：US20240316366A1

公开(公告)日：2024-09-26

申请号：US18496330

申请日：2023-10-27

Applicant: Arizona Board of Regents on Behalf of Arizona State University

Inventor： William James TYLER

IPC: A61N7/00 ,  A61B5/245 ,  A61B5/372 ,  A61B8/08

CPC classification number: A61N7/00 ,  A61B5/245 ,  A61B5/372 ,  A61B8/0816 ,  A61N2007/0026 ,  A61N2007/0078 ,  A61N2007/0091

Abstract: An ultrasound device for modulating brain activity may include a body and components for activating the brain. Such components include ultrasound transducers. The devices are used to provide ultrasound waves to brain structures in a subject wearing a device for methods to treat traumatic brain injury, affect postural control, affect wakefulness, attention, and alertness, to provide memory control, to alter cerebrovascular hemodynamics, to minimize stress, and to reinforce behavioral actions.

公开(公告)号：US20240130654A1

公开(公告)日：2024-04-25

申请号：US18461782

申请日：2023-09-05

Applicant: Ricoh Company, Ltd. ,  KANAZAWA INSTITUTE OF TECHNOLOGY

Inventor： Takashi YASUI ,  Ryoh MAEDA ,  Daisuke OYAMA ,  Yoshiaki ADACHI

IPC: A61B5/243 ,  A61B5/245

CPC classification number: A61B5/243 ,  A61B5/245 ,  G01R33/0356

Abstract: A biomagnetic field measurement device to measure a biomagnetic field includes a superconducting quantum interference device (SQUID) sensor, and includes a flux locked loop unit. The SQUID sensor includes an adjustment device configured to adjust a loop gain of the flux locked loop unit.

公开(公告)号：US11957470B2

公开(公告)日：2024-04-16

申请号：US17171118

申请日：2021-02-09

Applicant: Genetesis, Inc.

Inventor： Vineet Erasala ,  Peeyush Shrivastava ,  Emmanuel T. Setegn

IPC: A61B5/245 ,  A61B5/00 ,  A61B5/01 ,  A61B5/021 ,  A61B5/024 ,  A61B5/055 ,  A61B5/243 ,  A61B5/341 ,  A61B6/00 ,  A61B6/03 ,  A61B8/08 ,  A61B5/0205 ,  A61B90/00

CPC classification number: A61B5/243 ,  A61B5/0035 ,  A61B5/0044 ,  A61B5/01 ,  A61B5/021 ,  A61B5/024 ,  A61B5/055 ,  A61B5/245 ,  A61B5/341 ,  A61B5/4064 ,  A61B5/7235 ,  A61B5/7278 ,  A61B5/7282 ,  A61B5/743 ,  A61B5/7475 ,  A61B6/032 ,  A61B6/485 ,  A61B8/08 ,  A61B5/02055 ,  A61B2090/374 ,  A61B2090/3762 ,  A61B2090/378 ,  A61B2562/0223 ,  A61B2576/023 ,  A61B2576/026

Abstract: An organ evaluation device, system, or method is configured to receive electrophysiological data from a patient or model organism and integrates the data in a computational backend environment with anatomical data input from an external source, spanning a plurality of file formats, where the input parameters are combined to visualize and output current density and/or current flow activity having ampere-based units displayed in the spatial context of heart or other organ anatomy.

公开(公告)号：US11946975B2

公开(公告)日：2024-04-02

申请号：US17445684

申请日：2021-08-23

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hitoshi Iwasaki ,  Satoshi Shirotori ,  Akira Kikitsu ,  Yoshihiro Higashi

IPC: G01R31/382 ,  A61B5/245 ,  G01N27/90

CPC classification number: G01R31/382 ,  G01N27/9006 ,  A61B5/245

Abstract: According to one embodiment, a magnetic sensor includes a first sensor part. The first sensor part includes a first magnetic member, a first counter magnetic member, and a first magnetic element. A direction from the first magnetic member toward the first counter magnetic member is along a first direction. The first magnetic element includes one or a plurality of first extension parts. The first extension part includes a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer. The first magnetic layer includes a first portion, a first counter portion, and a first middle portion. A direction from the first portion toward the first counter portion is along the first direction. The first middle portion is between the first portion and the first counter portion. The first nonmagnetic layer is between the first counter magnetic layer and at least a portion of the first middle portion.

公开(公告)号：US11914012B2

公开(公告)日：2024-02-27

申请号：US17346468

申请日：2021-06-14

Applicant: HAMAMATSU PHOTONICS K.K. ,  Kyoto University

Inventor： Takenori Oida ,  Takahiro Moriya ,  Akinori Saito ,  Motohiro Suyama ,  Tetsuo Kobayashi

IPC: A61B5/245 ,  A61B5/055 ,  G01R33/26 ,  G01R33/48 ,  G01R33/032 ,  G01R33/421 ,  A61B5/00 ,  G01R33/00

CPC classification number: G01R33/4806 ,  A61B5/0042 ,  A61B5/055 ,  A61B5/245 ,  A61B5/6803 ,  G01R33/0017 ,  G01R33/032 ,  G01R33/26 ,  G01R33/4215 ,  A61B2562/0223 ,  A61B2562/182 ,  G01R33/0076

Abstract: A brain measurement apparatus includes: a magnetoencephalograph including optically pumped magnetometers, magnetic sensors for measuring a static magnetic field at positions of the optically pumped magnetometers, and a nulling coil for canceling the static magnetic field; an MRI apparatus including a permanent magnet, a gradient magnetic field coil, a transmission coil, and a receive coil for detecting a nuclear magnetic resonance signal; and a control device that, when measuring the brain's magnetic field, controls a current to be supplied to the nulling coil based on measured values of the magnetic sensors and operates so as to cancel a static magnetic field at the position of each of the optically pumped magnetometers and, when measuring an MR image, controls the gradient magnetic field by controlling a current to be supplied to the gradient magnetic field coil and generates an MR image based on an output of the receive coil.

公开(公告)号：US20240045005A1

公开(公告)日：2024-02-08

申请号：US18255967

申请日：2021-12-02

Applicant: Chipiron

Inventor： Dimitri Labat

IPC: G01R33/32 ,  G01R33/34 ,  G01V3/12 ,  A61B5/245 ,  A61B5/05

CPC classification number: G01R33/326 ,  G01R33/34 ,  G01R33/34061 ,  G01V3/12 ,  A61B5/245 ,  A61B5/05

Abstract: A radiofrequency detection and acquisition system, which is based on SQUID and configured to be integrated into a nuclear magnetic resonance system, comprises a primary detection antenna, a flux transformer having an inlet winding connected to the primary detection antenna, a low critical temperature SQUID device for capturing the magnetic flux produced by an outlet winding of the flux transformer and supplying a secondary detection signal, a cryogenic device for cooling the SQUID device and the flux transformer, and means for processing the secondary detection signal emitted by the SQUID device to supply an analogue acquisition signal. The primary detection antenna may be of the volume type, comprising Helmholtz coils or saddle coils, or a more complex volume geometry, particularly gradiometric geometry. The means for processing the secondary detection signal may comprise a flux-locked loop, provided to linearize the response of the SQUID device.

公开(公告)号：US11839475B2

公开(公告)日：2023-12-12

申请号：US17745115

申请日：2022-05-16

Applicant: Brain F.I.T. Imaging, LLC

Inventor： John P. Ford ,  Gustavo P. Sudre

IPC: A61B5/245 ,  A61B5/00 ,  G01R33/48 ,  G01R33/32

CPC classification number: A61B5/245 ,  A61B5/0042 ,  A61B5/4064 ,  A61B5/4088 ,  G01R33/4808 ,  A61B2562/0223 ,  G01R33/326 ,  G01R33/4806

Abstract: Techniques are described for determining cognitive impairment, an example of which includes accessing a set of epochs of magnetoencephalography (MEG) data of responses of a brain of a test patient to a plurality of auditory stimulus events; processing the set of epochs to identify parameter values one or more of which is based on information from the individual epochs without averaging or otherwise collapsing the epoch data. The parameter values are input into a model that is trained based on the parameters to determine whether the test patient is cognitively impaired.