203 patents
Page 2 of 11
Utility
Dynamic B
27 Jun 23
A fat saturation method for a magnetic resonance imaging system having a main magnet providing a magnetic field B0 The method includes: driving a shim coil assembly with a first set of shimming currents to sufficiently alter a B0 field inhomogeneity of the magnetic field B0 within a region that includes a first imaging volume of interest such that water saturation inside the region is reduced from before the first set of shimming currents are applied; applying a fat saturation pulse to the region; identifying the first imaging volume of interest from the region; driving the shim coil assembly with a second set of shimming currents to alter the B0 field inhomogeneity of the magnetic field B0 within the first imaging volume of interest such that the B0 field inhomogeneity within the first imaging volume of interest is reduced; and obtaining magnetic resonance signals from the first imaging volume of interest.
Philip J. Beatty, Chad Tyler Harris, Curtis Nathan Wiens
Filed: 7 Jul 21
Utility
Cognitive optical control system and methods
27 Jun 23
A cognitive optical system for dynamically refining imaging during a medical procedure, involving a processor operable by a set of executable instructions storable in relation to a non-transitory memory device.
Michael Frank Gunter Wood, Piotr Kuchnio, Cameron Anthony Piron
Filed: 21 Apr 21
Utility
System and method of coil design to reduce magnetic coupling
30 May 23
A method of manufacturing an electromagnet coil for use in a magnetic resonance imaging (MRI) system includes: generating a coil surface representation defining a surface to contain the electromagnet coil; defining a set of performance metric functions, the set including a mutual inductance function defining mutual inductance between the electromagnet coil and a second electromagnet coil; defining a performance functional based on the coil surface representation and the set of performance metric functions; optimizing the performance functional; generating a current density pattern over the coil surface representation based on the optimized performance functional; and obtaining coil windings defining the electromagnet coil from the current density pattern.
Geron Andre Bindseil, Chad Tyler Harris
Filed: 11 Aug 20
Utility
RFID medical device control interface
30 May 23
A medical navigation system is provided for controlling medical equipment during a medical procedure.
Kresimir Franjic, Kai Hynna, Joshua Richmond
Filed: 10 Nov 20
Utility
Real-time compensation of high-order concomitant magnetic fields
30 May 23
A method, electromagnet device, and system for reducing a higher order term of a concomitant field in an imaging magnetic field during magnetic resonance imaging is described.
Chad Harris, Geron Bindseil, Andrew T. Curtis
Filed: 24 Dec 21
Utility
Coil assembly for magnetic resonance imaging
30 May 23
A portable magnetic resonance imaging (MRI) system and methods, involving a magnet configured to generate a magnetic field, the magnet being a portable magnet transportable on a cart, and at least one coil assembly disposed in relation to the magnet, the at least one coil assembly having at least one gradient coil.
Cameron Anthony Piron, Alexander Gyles Panther, Sheryl Rae Thingvold, Chad Tyler Harris, Jeff Alan Stainsby
Filed: 22 Jul 20
Utility
Motorized full field adaptive microscope
16 May 23
An optical imaging system for imaging a target during a medical procedure, the imaging system involving an optical assembly having moveable zoom optics and moveable focus optics, a zoom actuator and a focus actuator for positioning the zoom and focus optics, respectively, a controller for controlling the zoom and focus actuators independently in response to received control input, a camera for capturing an image of the target from the optical assembly, the system capable of performing autofocus during a medical procedure.
Tammy Kee-Wai Lee, Michael Frank Gunter Wood, Cameron Anthony Piron, Brent Andrew Bailey, Sagar Saxena, Sean Adrian Conroy, Kamyar Abhari, Kai Michael Hynna, Gal Sela, Kelly Noel Dyer, Joshua Lee Richmond
Filed: 7 Jun 22
Utility
Adaptive shim coils for MR imaging
16 May 23
Systems and methods involving: a housing having a bore in which a subject to be imaged is placed; a main magnet configured to generate a volume of magnetic field within the bore, the volume of magnetic field having inhomogeneity below a defined threshold; gradient coils configured to linearly vary the volume of magnetic field as a function of spatial location; pulse-generating coils configured to generate and apply radio frequency (RF) pulses to the volume of magnetic field in sequence to scan the portion of the subject; shim gradient coils configured to perturb a spatial distribution of the linearly varying volume of magnetic field; and a control unit configured to operate the gradient coils, pulse-generating coils, and shim gradient coils such that only the user-defined region within the volume of magnetic field is imaged.
Jeff Alan Stainsby, Chad Tyler Harris
Filed: 5 Apr 22
Utility
Systems and methods for controlling autofocus operations
18 Apr 23
A method for performing auto-focus in a camera is disclosed.
Luke William Gane, David Bruce Gallop
Filed: 17 Oct 19
Utility
Multi-functional handheld optical coherence tomography imaging system
18 Apr 23
An OCT (Optical Coherence Tomography) handheld device is provided comprising: a housing configured for handheld OCT scanning during a surgical procedure, the housing comprising an OCT scanning end and a proximal end opposite the OCT scanning end; an OCT scanning device inside the housing, the OCT scanning device configured for one or more of OCT polarized scanning and Doppler OCT scanning from the OCT scanning end, the OCT scanning device further configured to receive and convey OCT light between the proximal end and an OCT analysing system; and a tip extending from the OCT scanning end, the tip being removably attached to the OCT scanning end, the tip configured to receive and collect the OCT light therethrough.
Siu Wai Jacky Mak, Ho Yiu Kyle Cheng, Fangxin Li, Harshul Varma
Filed: 21 Apr 21
Utility
Health imaging informatics system and methods
18 Apr 23
Methods and systems for providing treatment planning information for a neurology procedure, including neurosurgical procedures.
Wesley Bryan Hodges, Norman Pyo, Cameron Anthony Piron, Kelly Noel Dyer
Filed: 19 Jun 20
Utility
Trajectory alignment system and methods
11 Apr 23
The navigation systems and methods facilitate aligning a tool in relation to a trajectory in real-time to receive input data from a pre-operative plan image, at least one multi-modal image, and at least one real-time multi-modal image; interactively track at least one neural fiber, whereby interactively tracked fiber data is obtainable; automatically generate output data by way of data transformation using the input data and the interactively tracked neural fiber data; and transmit the output data to at least one of: at least one display device for rendering at least one real-time interactive navigation display for facilitating neural navigation, and at least one drive device for positioning at least one tracking device in relation to the tool in real-time, whereby real-time alignment data is achievable, and whereby at least one neurological structure is preservable.
Gal Sela, Neil Jeffrey Witcomb
Filed: 16 Feb 22
Utility
Automatic protocolling to reduce system and patient interactions
11 Apr 23
An automatic protocolling system and methods involving a processor operable by way of a set of executable instructions storable in relation to a nontransient memory device, the set of executable instructions configuring the processor to: receive information relating to an initial protocol comprising an initial ordering of a plurality of sequences, the information comprising data relating to an interaction extent value of at least one of an imaging system and a patient as a function of time corresponding to each sequence in the plurality of sequences, the data relating to a time-integrated effect of each sequence in the plurality of sequences; and dynamically determine an alternative protocol comprising an alternative ordering of the plurality of sequences based on the time-integrated effect, whereby an alternative protocol is provided.
Chad Tyler Harris, Jeff Alan Stainsby, Andrew Thomas Curtis, Philip J. Beatty, Curtis Nathan Wiens
Filed: 17 Aug 21
Utility
Active switching for RF slice-selecting
7 Mar 23
A magnetic resonance (MR) imaging system includes a transmit radio frequency (RF) coil assembly comprising multiple capacitor banks each coupled to at least one diode that is characterized by a high breakdown voltage such that when the transmit RF coil assembly applies at least one slice-selecting RF pulse to a portion of a subject placed in the magnet to select a particular slice for MR imaging, the capacitor banks are selectively adjusted to improve an RF transmission characteristics of the RF coil assembly in transmitting the at least one slice-selecting RF pulse.
Ian Robert Oliphant Connell
Filed: 12 Feb 21
Utility
Method for multimodal tissue imaging based on resonance Raman effect on metal based MRI contrast agents and method for ionizing laser plumes through atmospheric pressure chemical ionization
21 Feb 23
Disclosed herein is a method for multimodal imaging during a medical procedure using magnetic resonance imaging (MRI) and Raman optical imaging which involves administering an MRI imaging contrast agent that a chemical structure having charge-transfer electronic transitions.
Kresmir Franjic
Filed: 24 Jul 17
Utility
Method of reducing spatial extent of gradient coil current feeding connectors
21 Feb 23
Magnetic resonance imaging (MRI) systems and methods, involving: a main magnet configured to generate a magnet field for MRI; a transmit radio frequency (RF) coil assembly configured to transmit an RF pulse into a portion of a subject; an RF coil assembly configured to, in response to the an RF pulse, receive MR signals emitted from the portion of the subject; and a gradient coil assembly having coil windings arranged in a radial layer and a first set of electrical connectors embedded in the radial layer to reduce a radial extent occupied by the gradient coil assembly, an electrical connector in the first set of electrical connectors configured to cross over a portion of the coil windings in the radial layer, the first set of electrical connectors configured to drive the coil windings with a current sufficient to generate a perturbation in the magnet field such that the MR signals encode an MR image based on the perturbation, and the radial layer having a depressed area configured to radially constrain the electrical connector.
Geron André Bindseil, William Bradfield Handler
Filed: 2 Feb 22
Utility
System and method for providing surgical guidance based on polarization-sensitive optical coherence tomography
14 Feb 23
Systems and methods are provided for identifying a suitable surgical location and/or trajectory for proceeding with a surgical procedure based on local polarization-sensitive optical coherence tomography imaging (PS-OCT).
Cameron Anthony Piron, Michael Frank Gunther Wood, Murugathas Yuwaraj, Siu Wai Jacky Mak
Filed: 28 Mar 19
Utility
Reducing magnetic field instabilities caused by oscillations of a mechanical cryo-cooler in magnetic resonance systems
31 Jan 23
Described here are systems and methods for mitigating or otherwise removing the effects of short-term magnetic field instabilities caused by oscillations of the cold head in a cryogen-free magnet system used for magnetic resonance systems, such as magnetic resonance imaging (“MRI”) systems, nuclear magnetic resonance (“NMR”) systems, or the like.
Chad Tyler Harris, Geron Andre Bindseil, Alexander Gyles Panther, Jeff Alan Stainsby, Philip J. Beatty
Filed: 21 Sep 20
Utility
Orthogonal element decoupling for moveable coil arrays in MRI
31 Jan 23
A head coil assembly includes a housing with a lower portion, an upper portion, a left portion, and a right portion, wherein each portion includes two or more radio-frequency (RF) coils, wherein the portions are sized and shaped to adjustably conform to a curvature of the subject's head for magnetic resonance (MR) imaging of the subject's head placed inside the housing, wherein the portions are operable to transition from an open position where the portions are sufficiently apart from each other to a closed position where the portions are adjusted to tighten a wrap around the subject's head along the curvature, and wherein the two or more RF coils in each portion are disposed in such manner that when the portions are operated to transition from the open position to the closed position, the RF coils of each portion remain decoupled to each other even along edges of each portion.
Ian Robert Oliphant Connell, Gilbert Thevathasan, William Wai-Leung Lau, Alexander Gyles Panther
Filed: 22 Jul 21
Utility
System and methods for correcting image data of distinct images and generating and stereoscopic three-dimensional images
3 Jan 23
An optical imaging system for imaging a target during a medical procedure, the optical imaging system involving a first camera for capturing a first image of the target, a second wide-field camera for capturing a second image of the target, at least one optional path folding mirror disposed in an optical path between the target and a lens of the second camera, and a processor for receiving the first image and the second image, the processor configured to apply an image transform to one of the first image and the second wide-field image and combine the transformed image with the other one of the images to produce a stereoscopic image of the target.
Gal Sela
Filed: 1 Jun 21