G01R33/28

Continuous onboard re-charge environment
11635477 · 2023-04-25 ·

An article of manufacture for providing an onboard vehicle recharging environment according to the present invention is disclosed. A Continuous Onboard Recharging Environment (CORE) translates mechanical rotational energy obtained from the rotating axles of a vehicle to a form of sufficient voltage and load amperage to facilitate the charging of an Electric Vehicle's battery system while the vehicle is in operation, thus reducing or removing the need for external charging.

SYSTEMS FOR INDICATING PARAMETERS IN AN IMAGING DATA SET AND METHODS OF USE

Systems and methods for aiding users in viewing, assessing and analyzing images, especially images of lumens and medical devices contained within the lumens. Systems and methods for interacting with images of lumens and medical devices, for example through a graphical user interface.

OPTICAL DETECTION OF FOREIGN METAL OBJECTS ON SUBJECTS BEFORE UNDERGOING MAGNETIC RESONANCE IMAGING
20220322943 · 2022-10-13 ·

Provided is an optical metal detector device (10) for preparing magnetic resonance imaging, MRI, comprising: a light (11) configured to emit light to illuminate a subject (S), a camera (12) configured to be positioned in multiple different positions relative to the subject, to capture a series of images of the illuminated subject and to provide assigned image signals, a linear polarizer (13) configured to be arranged in at least a first angular position and a second angular position relative to the subject, the first angular position and the second angular position are different to each other, and to polarize the light emitted by the light source or to polarize the image captured by the camera, and a data processing means (14) configured to obtain at least the image signals from the camera, wherein the data processing means is further configured to combine the image signals associated with the first angular position and the second angular position of the linear polarizer and the image signals associated with one or more of the multiple different positions of the camera to obtain a combined signal and to compare the combined signal with a threshold indicating a quantity of foreign metal objects on the subject. Thereby, combining the image signals with each other comprises a convolution operation.

MRI-GUIDED STEREOTACTIC SURGERY METHOD

A MRI-guided stereotactic surgery method including the following steps: assigning coordinates of a surgery target point of a surgery cannula and an insertion direction of the surgery cannula; performing coordinate transformation to transform the coordinates of the surgery target point into an insertion position of the surgery target point; substituting the insertion position and the insertion direction into an inverse kinematics model to obtain five parameters respectively corresponding to five degrees of freedom of a MRI-compatible stereotactic surgery device; controlling the MRI-compatible stereotactic surgery device according to the parameters to start a stereotactic surgery procedure, thereby inserting the surgery cannula; obtaining an actual cannula position according to a magnetic resonance (MR) image; comparing the actual cannula position with the surgery target point to obtain a position error vector; and withdrawing the surgery cannula to finish the stereotactic surgery procedure when the position error vector is acceptable.

POSITION DETECTION MARKER
20230117248 · 2023-04-20 · ·

Disclosed herein is a position detection marker that includes a magnetic field source that generates magnetism, an MRI marker that can be detected by a magnetic resonance imaging method, and a holding part that fixes a relative positional relation between the magnetic field source and the MRI marker.

DEVICES AND RELATED ASPECTS FOR MAGNETIC RESONANCE IMAGING-BASED IN- SITU TISSUE CHARACTERIZATION

Provided herein are methods of analyzing tissue using a magnetic resonance imaging (MRI) compatible tissue analysis device that includes radio¬frequency (RF) tracking and imaging elements. Related kits, systems, and computer program products are also provided.

UPPER COIL ASSEMBLY OF AN RF PROBE FOR USE IN AN MRI SYSTEM

An upper coil assembly for use with a lower RF coil assembly mounted to provide an RF probe arranged to be engaged with a head of a patient in MRI includes a plurality of coil loops arranged in a row defining a phase shift coil array with each coil loop including an independent output conductor for communicating signals to a respective preamplifier for independent amplification and each coil loop including a plurality of capacitors at spaced positions therearound. To decouple the loops each coil loop partly overlaps a next coil loop with a first decoupling capacitor shared on a common portion of each coil loop and each next coil loop. The first and third coil loops are also decoupled by using third decoupling capacitor in a connecting conductor between the first and third coil loops.

Physiological Acquisition System For Use In An RF-Shielded Room

The disclosure relates to a radio-based physiological acquisition system for an RF-shielded room comprising a peripheral acquisition unit with a peripheral transmitter, a peripheral control unit, and a door sensor unit. The door sensor unit is configured to determine an opening status of a door in an RF shield around the RF-shielded room. The peripheral acquisition unit is configured to switch off the peripheral transmitter depending on the opening status of the door, e.g. when the door is open.

NMR magnet system with Stirling cooler
11630172 · 2023-04-18 ·

An NMR magnet system uses a Stirling cooler having a cold head that extends into a housing of the system to cool a cold shield surrounding a cryogen vessel. The system may have a damper located between the cooler and the cold shield to reduce a transmission of vibration from the cooler to a magnet coil immersed in the cryogen. The damper may be passive, or may be part of an active damping system that uses an acceleration sensor to drive an active damper that compensates for cooler vibration. A compensation apparatus may use a stored characteristic of a signal distortion caused by the vibration and, in response to a trigger signal from the cooler, apply compensation to an excitation signal provided to a sample by an NMR probe in a bore of the magnet coil, or to an FID signal from the sample that is detected by the probe.

Method and magnetic resonance apparatus for automatic interaction with a patient
11630171 · 2023-04-18 · ·

A method is for automatic interaction with a patient during a magnetic resonance examination with a magnetic resonance apparatus. In an embodiment, the method includes detecting an acoustic utterance of the patient; processing the acoustic utterance of the patient via a speech processor, the processing of the acoustic utterance including at least determining the communication as a function of the acoustic utterance and checking the communication for a correlation with a parameter of the magnetic resonance examination; determining the output as a function of the communication of the patient and the parameter of the magnetic resonance examination and providing the output. A magnetic resonance apparatus of an embodiment includes at least a processor to carry out an embodiment of the method. The method can further be stored on a computer program product or medium for execution by a processor.