309 patents
Page 11 of 16
Utility
Orthogonal Element Decoupling for Moveable Coil Arrays In Mri
9 Dec 20
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: 6 Jun 19
Utility
Integrated Active Detuning for Magnetic Resonance Imaging
25 Nov 20
A coil assembly includes: a radio frequency (RF) coil operable to be placed over a portion of a subject; a quarter-wave transformer coupled to the RF coil and configured to transform a characteristic impedance of the RF coil; and a diode placed behind the quarter-wave transformer and away from the RF coil, wherein the diode is operable to: (i) when the diode is forward biased, the diode turns the quarter-wave transformer into an open circuit such that the power amplifier drives the RF coil with sufficient electrical power for the RF coil to transmit an RF pulse into the portion of the subject; and (ii) when the diode is provided zero or reverse bias, the diode turns the quarter-wave transformer into a short circuit such that the RF coil is detuned from a Lamor frequency of nuclei of interest immersed in the main magnet.
Ian Robert Oliphant CONNELL
Filed: 21 May 19
Utility
System and Method to Reduce Eddy Current Artifacts In Magnetic Resonance Imaging
18 Nov 20
Some implementations provide a system that includes: a housing having a bore in which a subject to be image 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; one or more gradient coils configured to linearly vary the volume of magnetic field as a function of spatial location; one or more 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; one or more 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: 2 Aug 20
Utility
Local active gradient shielding
16 Nov 20
Some implementations provide a system that includes: a main magnet including a bore and configured to generate a substantially uniform magnetic field in the bore; one or more gradient coils configured to perturb the substantially uniform magnetic field in the bore, wherein perturbing the substantially uniform magnetic field results in a first varying magnetic field outside of the bore; and one or more shielding units located outside of the bore and configured to generate a second varying magnetic field configured to attenuate the first varying magnetic field outside of the bore.
Alexander Gyles Panther, Geron André Bindseil, Chad Tyler Harris, Mark Tullio Morreale
Filed: 16 Jan 20
Utility
Mixed reality training system
9 Nov 20
A training system for training a trainee to perform a surgical procedure on an anatomical region.
Gal Sela, Fergal Kerins, Kamyar Abhari, Kirusha Srimohanarajah
Filed: 20 Oct 16
Utility
Surgical navigation system using image segmentation
9 Nov 20
A system for tracking a piece of medical equipment intraoperatively using a collinear array of fiducial markers positioned at known fixed distances relative to each other on the medical equipment and a camera capturing an image on a single image plane.
Arun Victor Jagga, Cameron Piron
Filed: 14 Sep 14
Utility
Magnetic resonance imaging system capable of rapid field ramping
9 Nov 20
Systems and methods for rapidly ramping the magnetic field of a superconducting magnet, such as a superconducting magnet adapted for use in a magnetic resonance imaging system, are provided.
Jeff A. Stainsby, Chad T. Harris, Alexander G. Panther, Cameron A. Piron
Filed: 26 Aug 18
Utility
Methods and systems for providing depth information
9 Nov 20
Methods and systems for outputting depth data during a medical procedure on a patient.
Kamyar Abhari, Gal Sela, Michael Frank Gunter Wood, Kai Michael Hynna, Kelly Noel Dyer, Tammy Kee-wai Lee
Filed: 20 Oct 16
Utility
RFID medical device control interface
9 Nov 20
A medical navigation system is provided for controlling medical equipment during a medical procedure.
Kresimir Franjic, Kai Hynna, Joshua Richmond
Filed: 14 Nov 17
Utility
Dual zoom and dual field-of-view microscope
9 Nov 20
A surgical imaging system is described.
Michael Frank Gunter Wood, Cameron Anthony Piron, Tammy Kee-Wai Lee, Kamyar Abhari, Kai Michael Hynna
Filed: 2 Nov 15
Utility
Patient registration systems, devices, and methods for a medical procedure
9 Nov 20
Methods and apparatuses for performing patient registration. 3D scan data from a 3D scanner, preoperative image data, first tracking data from a first tracking system, and second tracking data from a second tracking system are mapped to a common coordinate space.
Kirusha Srimohanarajah, Dorothy Lui, Gal Sela, Kai Hynna, Shysta Ismaili, Samson Ng, Jakub Jankowski
Filed: 25 Oct 17
Utility
Coil Assembly for Magnetic Resonance Imaging
4 Nov 20
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 Gylers Panther, Sheryl Rae Thingvold, Chad Tyler Harris, Jeff Alan Stainsby
Filed: 21 Jul 20
Utility
Augmented optical imaging system for use in medical procedures
2 Nov 20
An optical imaging system for imaging a target during a medical procedure is disclosed.
Thomas Alexander Medal, Gal Sela
Filed: 14 Apr 19
Utility
Method, system and apparatus for rendering medical image data
26 Oct 20
A method of rendering medical image data includes: obtaining an image, having a plurality of voxels, of a volume of patient tissue having a plurality of tissue types; for each of the plurality of voxels: determining a first type indicator value indicating a likelihood that the voxel depicts a first one of the tissue types; storing the first type indicator value in association with the voxel; setting a first type indicator threshold for the first tissue type; rendering the image on a display and applying a first visual filter to a first subset of the voxels having type indicator values that satisfy the first type indicator threshold; and updating the rendering, responsive to receiving input data specifying a modified first type indicator threshold, to apply the first visual filter to an updated first subset of the voxels having first type indicator values that satisfy the modified first type indicator threshold.
David Bruce Gallop, Kamyar Abhari
Filed: 20 Feb 20
Utility
Wireless hands-free pointer system
26 Oct 20
A wireless hands-free pointer system includes a wearable unit and a base station.
Wesley Bryan Hodges, Daniel Christopher John Pajek
Filed: 5 Oct 17
Utility
Dynamic raman signal acquisition system, method and apparatus
19 Oct 20
A dynamic Raman signal acquisition apparatus, system, and method involving: an excitation light source operable at a designated irradiation power and for a designated acquisition time for each Raman data acquisition; a Raman probe operatively associated with said excitation light source to irradiate the biological tissue at said designated irradiation power and for said designated acquisition time, and capture an optical Raman response therefrom; a spectrometer operable to spectrally analyze said optical Raman response; and a controller in operative communication with said excitation light source and said spectrometer to automatically adjust at least one signal acquisition parameter.
Kresmir Franjic, Yusuf Bismilla, Siu Way Jacky Mak
Filed: 6 Aug 18
Utility
Reducing magnetic field instabilities caused by oscillations of a mechanical cryo-cooler in magnetic resonance systems
19 Oct 20
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: 8 Mar 16
Utility
Virtual operating room layout planning and analysis tool
12 Oct 20
A method and system to generate an operating room layout plan for a surgical procedure involving a patient and a trajectory of access.
Michael Jonathan Rotenberg, Kelly Noel Dyer, Kirusha Srimohanarajah
Filed: 12 Jun 16
Utility
System and method for dynamic validation, correction of registration for surgical navigation
12 Oct 20
Disclosed herein is a system and method for dynamic validation, correction of registration for surgical navigation during medical procedures on a patient which involves confirmation of registration between one or more previously registered virtual objects, such as surgical tools etc. in a common coordinate frame of a surgical navigation system and an operating room, and intra-operatively acquired imaging during the medical procedure in the common coordinate frame.
Gal Sela, Cameron Piron, Michael Wood, Joshua Richmond, Murugathas Yuwaraj, Stephen McFadyen, Monroe M. Thomas, Wes Hodges, Simon Alexander, David Gallop
Filed: 13 Mar 14
Utility
Magnetic resonance imaging of different nuclear spin species with the same radio frequency coil
12 Oct 20
Systems and methods for magnetic resonance imaging (“MRI”) of multiple different nuclear spin species using the same radio frequency (“RF”) coil are described.
Jeff A. Stainsby
Filed: 26 May 16