309 patents
Page 7 of 16
Utility
Methods and Devices for Tracking Objects by Surgical Navigation Systems
11 Nov 21
A method and device for tracking objects by surgical navigation systems.
Kamyar ABHARI, Kai Michael HYNNA, Gal SELA, Kirusha SRIMOHANARAJAH
Filed: 9 Jun 21
Utility
Orthogonal Element Decoupling for Moveable Coil Arrays In Mri
11 Nov 21
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
Methods and Systems for Providing Visuospatial Information
4 Nov 21
Methods and systems for providing feedback during a medical procedure.
Kamyar ABHARI, Stewart David MCLACHLIN, Kai Michael HYNNA, Gal SELA, Jared Rowland SHOUP, Michael Peter BULK, Kelly Noel DYER
Filed: 16 Jul 21
Utility
Surgical imaging sensor and display unit, and surgical navigation system associated therewith
2 Nov 21
Described are various embodiments of a mobile surgical imaging sensor and display unit, and surgical navigation system associated therewith, in which the mobile unit may be disposed to provide line-of-sight or near line-of-sight imaging and display capabilities to an operator thereof during a surgical procedure, while a position and/or orientation of the mobile unit is tracked relative to a surgical site to associate a surgical site location with images captured and rendered by the mobile unit.
Luc Gilles Charron, Michael Frank Gunter Wood
Filed: 8 Oct 18
Utility
Dynamic B0 Shimming for Improved Fat Saturation In Magnetic Resonance Imaging (Mri)
28 Oct 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 Wiens
Filed: 7 Jul 21
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
Intraoperative medical imaging method and system
14 Sep 21
Methods and apparatus is provided for use in a medical procedure for image acquisition using a high-resolution imaging system, a three dimensional imaging system and a navigation system.
Siu Wai Jacky Mak, Arun Victor Jagga
Filed: 27 Jun 16
Utility
Systems and methods for adaptive multi-resolution magnetic resonance imaging
14 Sep 21
Systems and methods for adaptive, multi-resolution magnetic resonance imaging (“MRI”), in which an MRI scan prescription is adaptively changed to acquire high-quality data from select regions-of-interest (“ROI”) in a larger field-of-view (“FOV”), are provided.
Cameron A. Piron, Jeff Stainsby, Chad Harris, Philip Beatty
Filed: 16 Jul 15
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
System and method for remote clock estimation for reliable communications
7 Sep 21
An electronic device is provided including a processor, a communications interface coupled to the processor, a memory coupled to the processor, and a module saved in the memory.
Monroe M. Thomas, Simon Alexander
Filed: 30 Sep 19
Utility
Intelligent positioning system and methods therefor
31 Aug 21
System and methods are provided for adaptively and intraoperatively configuring an automated arm used during a medical procedure.
Cameron Piron, Michael Wood, Gal Sela, Joshua Richmond, Murugathas Yuwaraj, Stephen McFadyen, Alex Panther, Nishanthan Shanmugaratnam, William Lau, Monroe M. Thomas, Wes Hodges, Simon Alexander, David Gallop
Filed: 6 Apr 17
Utility
Methods and devices for tracking objects by surgical navigation systems
31 Aug 21
A method and device for tracking objects by surgical navigation systems.
Kamyar Abhari, Kai Michael Hynna, Gal Sela, Kirusha Srimohanarajah
Filed: 24 Nov 17
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