公开(公告)号：US12164010B2

公开(公告)日：2024-12-10

申请号：US16575545

申请日：2019-09-19

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Hyman D. Chantz

IPC: G01R33/46 ,  A61B5/00 ,  G01N24/00 ,  G01N24/08 ,  G01R23/00 ,  G01R23/07 ,  G01R23/16 ,  G01R23/18 ,  G01R33/20 ,  G01R33/28 ,  G01R33/32 ,  G01R33/34 ,  G01R33/36 ,  G01R33/38 ,  G01R33/385 ,  G01R33/58 ,  G06T7/00

Abstract: Nuclear Magnetic Resonant Imaging (also called Magnetic Resonant Imaging or “MRI”) devices which are implantable, internal or insertable are provided. The disclosure describes ways to miniaturize, simplify, calibrate, cool, and increase the utility of MRI systems for structural investigative purposes, and for biological investigation and potential treatment. It teaches use of target objects of fixed size, shape and position for calibration and comparison to obtain accurate images. It further teaches cooling of objects under test by electrically conductive leads or electrically isolated leads; varying the magnetic field of the probe to move chemicals or ferrous metallic objects within the subject. The invention also teaches comparison of objects using review of the frequency components of a received signal rather than by a pictorial representation.

公开(公告)号：US20240118356A1

公开(公告)日：2024-04-11

申请号：US17938465

申请日：2022-10-06

Applicant: GE Precision Healthcare LLC

Inventor： Xiaoli Zhao ,  Kang Wang ,  Hua Li ,  Zhenghui Zhang ,  Florian Wiesinger ,  Ty A. Cashen ,  Rolf Schulte

IPC: G01R33/20 ,  A61B5/055

CPC classification number: G01R33/20 ,  A61B5/055 ,  G01R33/5611

Abstract: A method for generating an image of an object with a magnetic resonance imaging (MM) system is presented. The method includes first performing a calibration scan of the object. The calibration scan is performed with a zero echo time (ZTE) radial sampling scheme to obtain calibration k-spaces for surface coil elements and a body coil of the MRI system. The calibration scan is performed in such a manner that the endpoints of calibration k-space lines in each calibration k-space follow a spiral path. A plurality of calibration parameters are then obtained from the plurality of calibration k-spaces. A second scan of the object is then performed to acquire the MR image data. The image of the object is then generated based on the plurality of calibration parameters and the MR image data.

公开(公告)号：US11892529B2

公开(公告)日：2024-02-06

申请号：US17565806

申请日：2021-12-30

Applicant: Sufei Shi ,  Tianmeng Wang

Inventor： Sufei Shi ,  Tianmeng Wang

IPC: G01R33/20 ,  G01J4/00 ,  H01L29/24 ,  H01L29/786

CPC classification number: G01R33/20 ,  G01J4/00 ,  H01L29/24 ,  H01L29/78696

Abstract: A transition metal dichalcogenides device includes a substrate, a bottom layer of boron nitride, a tungsten diselenide monolayer on the bottom layer of boron nitride, a top layer of boron nitride on the tungsten diselenide monolayer such that the bottom and top layers of boron nitride at least partially encapsulate the tungsten diselenide monolayer, a source electrode on the substrate, a drain electrode on the substrate, and a top gate electrode on the top layer of boron nitride. The tungsten diselenide monolayer is configured to reveal excitons when at least one of a K valley and a K′ valley of the tungsten diselenide monolayer is exposed to excitation photon energy and an external magnetic field. The excitons are giant valley-polarized Rydberg excitons in excited states ranging from 2s to 11s when the external magnetic field is in the range of about −17 T to about 17 T.

公开(公告)号：US11632256B2

公开(公告)日：2023-04-18

申请号：US17541003

申请日：2021-12-02

Applicant: Lexmark International, Inc.

Inventor： Scott Richard Castle ,  Gary Allen Denton ,  Robert Henry Muyskens ,  Samuel Leo Rhodus

IPC: H04L9/32 ,  B41J2/175 ,  G01R33/20 ,  H01F1/055 ,  H04L9/08

Abstract: The use of a magnetic particle based “PUF” (Physically Unclonable Function) disk, when read by magnetic sensor(s), as a positional encoder is described. It is often necessary to include a linear or rotary encoder within a device for tracking motor movements, or to enable a closed-loop control algorithm on the motor system. These randomly dispersed magnetic particle disks can be used as a positional encoder, where the speed of movement and the direction of movement may be monitored.

公开(公告)号：US20220409149A1

公开(公告)日：2022-12-29

申请号：US17781107

申请日：2020-11-27

Applicant: INNOVERE MEDICAL INC.

Inventor： Kevan James Thompson ANDERSON ,  Lisa Margaret COOPER ,  David Robert GREEN ,  Gareth Alan KENWORTHY ,  Garry Ka Chun LIU ,  Donald Bruce PLEWES

IPC: A61B6/04 ,  G01R33/20

Abstract: Systems and methods are provided for managing and reducing the severity or impact of a collision involving an apparatus secured to a table associated with a medical imaging and/or therapeutic gantry. Example systems are provided in which an apparatus is secured to the table such that a distal region of the apparatus extends beyond a longitudinal end of the table. A pivot joint associated with the apparatus is provided such that when a collision between the distal region of the apparatus and an object occurs due to motion of the table, the resulting force causes the apparatus to rotate relative to the pivot joint, thus passively accommodating the applied force and preventing, or reducing the likelihood of, mechanical buckling of the apparatus in the presence of the force. In some example embodiments, the apparatus is configured to rotate and/or translate as a result of the force applied during the collision.

公开(公告)号：US11468982B2

公开(公告)日：2022-10-11

申请号：US16584637

申请日：2019-09-26

Applicant: Siemens Healthcare GmbH

Inventor： Philipp Hoecht ,  Harald Karl ,  Felix Wolf

IPC: G16H40/67 ,  A61B6/00 ,  H04L67/025 ,  A61B5/00 ,  G16H40/20 ,  H04L67/125 ,  H04L67/104 ,  H04L9/40 ,  A61B5/055 ,  A61B6/03 ,  G06Q10/06 ,  G01R33/20

Abstract: A medical imaging apparatus with a medical scanner unit and at least one display is described, as well as a method for actuating at least one display of a medical imaging apparatus. The techniques disclosed are based on a medical imaging apparatus with a medical scanner unit, a computing unit which is connected to a master unit, and at least one display. The at least one display may include a slave unit, and the master unit may be connected to the slave unit by means of a data connection.

公开(公告)号：US20220187219A1

公开(公告)日：2022-06-16

申请号：US17442766

申请日：2020-03-27

Applicant: The University of Western Australia

Inventor： Eric Freemantle May ,  Paul Louis Stanwix ,  Matthew Gaven Hopkins ,  Arman Siahvashi

IPC: G01N22/00 ,  G01F1/74 ,  G01R33/20 ,  G01N33/22 ,  F25J1/00 ,  F25J1/02

Abstract: An apparatus to directly detect solids formation in a fluid under known pressure and temperature conditions is disclosed. The apparatus includes a vessel having an electromagnetic resonant cavity defined by an upper portion, a lower portion and a gap defined therebetween, the gap having resonant properties sensitive to the presence of a solid phase therein. The upper portion or the lower portion may be provided with a passage extending therethrough in fluid communication with an inlet to allow ingress of a stream of fluid to the gap and thereby purge solids from the cavity subsequent to solids formation.
The apparatus also includes one or more probes, one or more sensors and a signal processor operatively connected to said sensors and said one or more probes to directly detect solids formation in the fluid within the cavity in response to detected changes in the resonant properties of the cavity.

公开(公告)号：US11290290B2

公开(公告)日：2022-03-29

申请号：US16822355

申请日：2020-03-18

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： Scott Richard Castle ,  Gary Allen Denton ,  Robert Henry Muyskens ,  Samuel Leo Rhodus ,  Brant Dennis Nystrom

IPC: H04L29/06 ,  H04L9/32 ,  B41J2/175 ,  G01R33/20 ,  H01F1/055 ,  H04L9/08

Abstract: Magnetic PUFs (Physical Unclonable Function) may utilizes a single 3-axis Hall-effect sensor for enrollment. When a PUF is manufactured, a Hall-effect sensor is used to model the PUF disk and store that data where it may be accessed. This process is called “enrollment.” This invention improves upon the PUF implementation by introducing controlled variability into the enrollment, the reading of the PUF data from the Hall-effect sensors (the number and position of read sensors), the sampling method of the read sensor(s), and the processing of the PUF data.

公开(公告)号：US20210307637A1

公开(公告)日：2021-10-07

申请号：US17352457

申请日：2021-06-21

Applicant: DENTSPLY SIRONA Inc.

Inventor： Ciamak ABKAI ,  Tim BRAUN

IPC: A61B5/055 ,  A61B5/107 ,  A61B5/00 ,  G01R33/20 ,  G06T7/00

Abstract: Disclosed herein is a method for acquiring a dental object of a patient with an object volume, in particular at least a part of a skull, an upper jaw and/or a lower jaw. To do so, a plurality of segment volume ranges are defined in the object volume, where the segment volume ranges overlap at most partially and directions of the segment volume ranges are not parallel to one another. The image data of the segment volume ranges is recorded by an MRI machine within a measuring volume of the MRI machine A two-dimensional composite image is generated from the image data of the individual segment volume ranges by projecting the image data onto a target plane. The target plane is disposed parallel to a defined midsagittal 10 plane of the skull or corresponds to the midsagittal plane, where a first segment volume range at least partially includes the midsagittal plane of the skull.

公开(公告)号：US11013452B1

公开(公告)日：2021-05-25

申请号：US16893702

申请日：2020-06-05

Applicant: Heuron Co., Ltd.

Inventor： Soo Hwa Song ,  Hwan Heo

IPC: A61B5/055 ,  G06T7/00 ,  A61B5/00 ,  G06K9/62 ,  G06K9/32 ,  G06T3/40 ,  G16H50/20 ,  G16H30/40 ,  G16H30/20 ,  G16H10/40 ,  G06N3/04 ,  G06N3/08 ,  G01R33/20

Abstract: The present invention relates to an artificial intelligence-based Parkinson's disease diagnosing apparatus and method. An artificial intelligence-based Parkinson's disease diagnosing apparatus which is an aspect of the present disclosure includes an image acquiring unit which acquires a first image related to a multi-echo magnitude and phase from an MRI obtained by capturing a brain of a patient; an image processing unit which post-processes the acquired first image so as to observe a substantia nigra and a nigrosome-1 region used as imaging biomarkers of the Parkinson's disease; an image analyzing unit which analyzes the post-processed first image to classify a second image including the nigrosome-1 region and detects the nigrosome-1 region from the classified second image; and a diagnosing unit which diagnoses whether the patient has the Parkinson's disease by analyzing whether the detected nigrosome-1 region is normal, in which the image processing unit generates a susceptibility map weighted imaging image by applying a quantitative susceptibility map mask to the first image based on a quantitative susceptibility mapping algorithm to perform the post-processing and the image processing unit further performs at least one operation of angle adjustment, image enlargement, and reslice, on the generated susceptibility map weighted imaging image.