102 patents
Page 3 of 6
Utility
Integrated Active Detuning for Magnetic Resonance Imaging
21 Oct 21
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 revers 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: 29 Jun 21
Utility
Method and System for Reducing Magnetic Field Instabilities In a Magnetic Resonance System
14 Oct 21
A method, device, and system for reducing inhomogeneity in an imaging magnetic field during magnetic resonance imaging is described.
Ian CONNELL, Chad HARRIS, Geron BINDSEIL, Andrew T. CURTIS
Filed: 26 May 21
Utility
Deformable and Shape-able Surgical Lighting Device and System
7 Oct 21
A conductor-less, shape-able, surgical lighting system and methods for use in surgical applications in which a medical clinician, once having established a surgical site, can shape the lighting system to selectively illuminate desired volumes of the surgical site.
Siu Wai Jacky Mak, Michael Frank Gunter Wood
Filed: 16 Jun 21
Utility
Active Switching for RF Slice-selecting
7 Oct 21
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
Systems, Devices and Methods for Tissue Removal and Analysis
30 Sep 21
Systems, devices, and methods for performing tissue removal and analysis based on the in-situ optical analysis of tissue and liquid collected from a tissue region.
Siu Wai Jacky MAK
Filed: 15 Jun 21
Utility
Method, System and Apparatus for Surface Rendering Using Medical Imaging Data
23 Sep 21
A method, system and apparatus for surface rendering using medical imaging data is provided.
David GALLOP, Sean Jy-Shyang CHEN
Filed: 31 May 21
Utility
System and Method for Using Coils In Magnetic Resonance Imaging
16 Sep 21
Some implementations provide an MRI system that includes: a housing having a bore accommodating a portion of a subject; a main magnet enclosed by said housing and configured to generate a substantially uniform magnet field within the bore; a gradient sub-system to provide perturbations to the substantially uniform magnet field; a flexible coil assembly configured to (i) receive radio frequency (RF) signals from the subject in response to the portion of the subject being scanned, and (ii) generate and apply B0 shimming to improve a field homogeneity of the substantially uniform magnetic field; and a control unit configured to: drive the gradient sub-system using a gradient waveform; and receive measurement results responsive to the gradient waveform such that a coupling between the gradient sub-system and the flexible coil assembly is determined and subsequently reduced in response to the determined coupling exceeding a pre-determined threshold.
Chad Tyler Harris, Geron André Bindseil
Filed: 12 Feb 21
Utility
System and Methods for Correcting Image Data of Distinct Images and Generating and Stereoscopic Three-dimensionsl Images
16 Sep 21
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
Utility
Multi-functional Handheld Optical Coherence Tomography Imaging System
9 Sep 21
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
Method, System and Apparatus for Maintaining Patient Registration In a Surgical Navigation System
26 Aug 21
A device and methods for maintaining patient registration in surgical navigation, involving: obtaining a patient position in a tracking system frame of reference, based on a fiducial marker array affixed in a first position relative to the patient; receiving an initial surface scan depicting the patient and the fiducial array; responsive to receiving an intraoperative image depicting the patient: obtaining a position, in the tracking system frame of reference, of the fiducial array affixed in a second position relative to the patient; receiving a secondary surface scan depicting the patient and the fiducial array; detecting a deviation in a position of the fiducial marker array relative to the patient between the initial and secondary surface scans; and applying the deviation to the position of the patient to generate an updated position of the patient in the tracking system frame of reference, based on the fiducial array affixed in the second position.
Audrey Yu-Ching KUO, Kirusha SRIMOHANARAJAH, Gal SELA, Alexander Gyles PANTHER, Kelly Noel DYER
Filed: 21 Apr 21
Utility
System and Method for Mapping Navigation Space to Patient Space In a Medical Procedure
26 Aug 21
An apparatus is provided that is visible by both a three dimensional (3D) scanner system of a medical navigation system and a camera of the medical navigation system.
Kirusha SRIMOHANARAJAH, Dorothy LUI, Gal SELA
Filed: 11 May 21
Utility
Systems and Methods for Magnetic Field-Dependent Relaxometry Using Magnetic Resonance Imaging
26 Aug 21
Systems and methods for magnetic field-dependent relaxometry using magnetic resonance imaging (“MRI”) are provided.
Chad Tyler Harris, David Mark Deschenes, Alexander Gyles Panther, Jeff Alan Stainsby, Philip J. Beatty
Filed: 31 Mar 21
Utility
Tracked Suction Tool
19 Aug 21
A device and method for a trackable suction tool in surgical use.
Leila Kheradpir, Kyle Richard Dupont, Jakub Jankowski
Filed: 30 Apr 21
Utility
Cognitive Optical Control System and Methods
5 Aug 21
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
Multispectral Synchronized Imaging
5 Aug 21
A multispectral synchronized imaging system is provided.
Ze Shan YAO, Piotr KUCHNIO, Michael Frank Gunter WOOD, Tammy Kee-Wai LEE, Yanhui BAI, Michael Peter BULK, Christopher Thomas JAMIESON
Filed: 21 Apr 21
Utility
System and Method for Optimizing Discrete Wire Positions Used In Gradient Coil Electromagnetic Design
29 Jul 21
The present disclosure reports on a method to first determine the required electromagnetic stream function, and then iterate on the contouring of the stream function to optimize the force, torque, shielding, and/or mutual inductance of the design after-the-fact without compromising the electromagnetic performance and an electromagnetic coil manufacture according to the method.
Geron André BINDSEIL, Chad Tyler HARRIS, Ian Robert Oliphant CONNELL
Filed: 12 Aug 20
Utility
Surgical Camera System with Automatic Alternation Between Two Depths of Field
22 Jul 21
A surgical camera system, and method therefor, is provided which includes a plurality of imaging devices each having a tunable iris configured to change between at least two different sized numerical apertures.
Siu Wai Jacky MAK, Michael Frank Gunter WOOD, Yanhui BAI
Filed: 9 Feb 21
Utility
Dynamic B0 Shimming for Improved Fat Saturation In Magnetic Resonance Imaging (Mri)
8 Jul 21
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 Weins
Filed: 7 Jan 20
Utility
System and Methods for Automatic Muscle Movement Detection
24 Jun 21
A medical navigation system is provided for detecting movement of a subject, the system having an optical tracking system including a camera, a display, and a controller electrically coupled with the optical tracking system and the display.
Kelly Noel DYER, Gal Sela, Kirusha Srimohanarajah, Sean Jy-Shyang Chen, Joshua Lee Richmond, Fergal Kerins
Filed: 9 Mar 21
Utility
System and Method for Image Processing
3 Jun 21
Mechanisms for image processing are provided.
David Bruce GALLOP, Wesley Bryan HODGES
Filed: 14 Dec 20