Patents by Inventor Alexander Gyles PANTHER
Alexander Gyles PANTHER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210263121Abstract: Systems and methods for magnetic field-dependent relaxometry using magnetic resonance imaging (“MRI”) are provided. Relaxation parameters, including longitudinal relaxation time (“T1”) and transverse relaxation time (“T2”), are estimated from magnetic resonance signal data acquired at multiple different magnetic field strengths using the same MRI system. By measuring these relaxation parameters as a function of magnetic field strength, T1 dispersion data, T2 dispersion data, or both, are generated. Based on this dispersion data, quantitative physiological parameters can be estimated. As one example, iron content can be estimated from T2 dispersion data.Type: ApplicationFiled: March 31, 2021Publication date: August 26, 2021Inventors: Chad Tyler Harris, David Mark Deschenes, Alexander Gyles Panther, Jeff Alan Stainsby, Philip J. Beatty
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Publication number: 20210259784Abstract: 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.Type: ApplicationFiled: April 21, 2021Publication date: August 26, 2021Applicant: SYNAPTIVE MEDICAL INC.Inventors: Audrey Yu-Ching KUO, Kirusha SRIMOHANARAJAH, Gal SELA, Alexander Gyles PANTHER, Kelly Noel DYER
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Patent number: 11085978Abstract: 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.Type: GrantFiled: June 7, 2019Date of Patent: August 10, 2021Assignee: Synaptive Medical Inc.Inventors: Ian Robert Oliphant Connell, Gilbert Thevathasan, William Wai-Leung Lau, Alexander Gyles Panther
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Patent number: 10987173Abstract: A method of maintaining patient registration in surgical navigation includes: 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.Type: GrantFiled: February 20, 2018Date of Patent: April 27, 2021Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Yu-Ching Audrey Kuo, Kirusha Srimohanarajah, Gal Sela, Alexander Gyles Panther, Kelly Noel Dyer
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Patent number: 10969453Abstract: Systems and methods for magnetic field-dependent relaxometry using magnetic resonance imaging (“MRI”] are provided. Relaxation parameters, including longitudinal relaxation time (“T1”) and transverse relaxation time (“T2”), are estimated from magnetic resonance signal data acquired at multiple different magnetic field strengths using the same MRI system. By measuring these relaxation parameters as a function of magnetic field strength, T1 dispersion data, T2 dispersion data, or both, are generated. Based on this dispersion data, quantitative physiological parameters can be estimated. As one example, iron content can be estimated from T2 dispersion data.Type: GrantFiled: January 22, 2016Date of Patent: April 6, 2021Assignee: SYNAPTIVE MEDICAL INC.Inventors: Chad Tyler Harris, David Mark Deschenes, Alexander Gyles Panther, Jeff Alan Stainsby, Philip J. Beatty
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Publication number: 20210068701Abstract: A magnetic resonance imaging (MRI) system and methods for use with a medical, e.g., a surgical, robotic system, involving an MRI apparatus configured to operate with the surgical robotic system, the MRI apparatus having at least one low-field magnet, the at least one low-field magnet configured to generate a low magnetic field, and the low magnetic field comprising a magnetic flux density in a range of approximately 0.1 Tesla (T) to approximately 0.5 T, whereby a standoff between the MRI apparatus and the surgical robotic system is reduced.Type: ApplicationFiled: September 8, 2020Publication date: March 11, 2021Inventors: CAMERON ANTHONY PIRON, ALEXANDER GYLES PANTHER, THANH VINH VUONG, DIANA LEE
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Publication number: 20210003648Abstract: 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.Type: ApplicationFiled: September 21, 2020Publication date: January 7, 2021Inventors: Chad Tyler Harris, Geron Andre Bindseil, Alexander Gyles Panther, Jeff Alan Stainsby, Philip J. Beatty
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Publication number: 20200400765Abstract: A method for operating a magnetic resonance imaging (MRI) system that includes: accessing data indicating a first region for imaging a portion of a subject, the portion being placed in a main magnet of the MRI system and the main magnet generating a magnetic field; selecting, from a group of available shimming coils, a first subset of shimming coils arranged and configured such that, when the shimming coils in the first subset are driven, a homogeneity of the magnetic field at the first region is increased; and driving the shimming coils in the selected first subset of shimming coils without driving other shimming coils in the group of available shimming coils such that the homogeneity of the magnetic field at the first region increases relative to the homogeneity of the magnetic field at the first region when the shimming coils of the selected first subset are not driven.Type: ApplicationFiled: January 27, 2020Publication date: December 24, 2020Inventors: Chad Tyler Harris, Philip J. Beatty, Alexander Gyles Panther, Jeff Alan Stainsby, David Mark Deschenes
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Publication number: 20200386834Abstract: 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.Type: ApplicationFiled: June 7, 2019Publication date: December 10, 2020Inventors: Ian Robert Oliphant CONNELL, Gilbert Thevathasan, William Wai-Leung LAU, Alexander Gyles Panther
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Patent number: 10838029Abstract: 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.Type: GrantFiled: January 17, 2020Date of Patent: November 17, 2020Assignee: Synaptive Medical (Barbados) Inc.Inventors: Alexander Gyles Panther, Geron André Bindseil, Chad Tyler Harris, Mark Tullio Morreale
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Patent number: 10809330Abstract: 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.Type: GrantFiled: March 9, 2016Date of Patent: October 20, 2020Assignee: Synaptive Medical (Barbados) Inc.Inventors: Chad Tyler Harris, Geron Andre Bindseil, Alexander Gyles Panther, Jeff Alan Stainsby, Philip J. Beatty
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Publication number: 20200319276Abstract: Methods for correcting a non-uniform power response of a radiofrequency (“RF”) transmit coil used in magnetic resonance imaging (“MRI”) are described. Transmit power response data for an RF transmit coil are processed to compute RF amplitude scaling factors for the RF transmit coil as a function of transmit frequency offset. The RF amplitude scaling factors can be used to correct transmitted RF power, and thus flip angle, to be more uniform over a range of transmit frequency offsets, as may be encountered when imaging with lower field MRI systems or MRI systems with high strength or asymmetric gradients.Type: ApplicationFiled: June 18, 2020Publication date: October 8, 2020Inventors: Jeff Alan Stainsby, Chad Tyler Harris, Andrew Thomas Curtis, Alexander Gyles Panther
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Patent number: 10761165Abstract: A system and method of acquiring an image at a magnetic resonance imaging (MRI) system is provided. Accordingly, an analog signal based on a pulse sequence and a first gain is obtained. The analog signal is converted into a digitized signal. A potential quantization error is detected in the digitized signal based on a boundary. When the detection is affirmative, a replacement analog signal based on the pulse sequence is received. At least one portion of the replacement analog signal can be based on an adjusted gain. The adjusted gain is a factor of the first gain. The replacement analog signal is digitized into a replacement digitized signal. At least one portion of the replacement digitized signal corresponding to the at least one portion of the replacement analog signal is adjusted based on a reversal of the factor.Type: GrantFiled: February 7, 2019Date of Patent: September 1, 2020Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Cameron Anthony Piron, Alexander Gyles Panther, Chad Tyler Harris, Stephen B. E. McFadyen
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Patent number: 10705166Abstract: Methods for correcting a non-uniform power response of a radiofrequency (“RF”) transmit coil used in magnetic resonance imaging (“MRI”) are described. Transmit power response data for an RF transmit coil are processed to compute RF amplitude scaling factors for the RF transmit coil as a function of transmit frequency offset. The RF amplitude scaling factors can be used to correct transmitted RF power, and thus flip angle, to be more uniform over a range of transmit frequency offsets, as may be encountered when imaging with lower field MRI systems or MRI systems with high strength or asymmetric gradients.Type: GrantFiled: May 18, 2017Date of Patent: July 7, 2020Inventors: Jeff Alan Stainsby, Chad Tyler Harris, Andrew Thomas Curtis, Alexander Gyles Panther
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Publication number: 20200150205Abstract: 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.Type: ApplicationFiled: January 17, 2020Publication date: May 14, 2020Inventors: Alexander Gyles Panther, Geron André Bindseil, Chad Tyler Harris, Mark Tuilio MORREALE
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Patent number: 10632327Abstract: Some implementations provide a method that includes: placing a human subject on a moveable platform located in a room with a magnetic resonance imaging (MRI) scanner and a radiation therapy machine; moving the platform into a first position such that the human subject is positioned to be imaged by MRI; operating the MRI scanner while the platform is in the first position to obtain an image of the human subject; moving the platform into a second position such that the human subject is in position to receive radiation therapy from the radiation therapy machine; reducing the magnetic field such that the magnetic field at the radiation therapy machine is below a threshold value; and while the platform is in the second position and the magnetic field at the radiation therapy machine is below the threshold value, operating the radiation therapy machine to perform radiation therapy on the human subject.Type: GrantFiled: November 4, 2014Date of Patent: April 28, 2020Assignee: Synaptive Medical (Barbados) Inc.Inventor: Alexander Gyles Panther
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Patent number: 10551454Abstract: A method for operating a magnetic resonance imaging (MRI) system that includes: accessing data indicating a first region for imaging a portion of a subject, the portion being placed in a main magnet of the MRI system and the main magnet generating a magnetic field; selecting, from a group of available shimming coils, a first subset of shimming coils arranged and configured such that, when the shimming coils in the first subset are driven, a homogeneity of the magnetic field at the first region is increased; and driving the shimming coils in the selected first subset of shimming coils without driving other shimming coils in the group of available shimming coils such that the homogeneity of the magnetic field at the first region increases relative to the homogeneity of the magnetic field at the first region when the shimming coils of the selected first subset are not driven.Type: GrantFiled: April 10, 2015Date of Patent: February 4, 2020Assignee: Synaptive Medical (Barbados) Inc.Inventors: Chad Tyler Harris, Philip J. Beatty, Alexander Gyles Panther, Jeff Alan Stainsby, David Mark Deschenes
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Patent number: 10539639Abstract: 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.Type: GrantFiled: August 6, 2015Date of Patent: January 21, 2020Assignee: Synaptive Medical (Barbados) Inc.Inventors: Alexander Gyles Panther, Geron André Bindseil, Chad Tyler Harris, Mark Tuilio Morreale
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Patent number: 10527688Abstract: Some implementations provide a method for safe operation of a magnetic resonance imaging (MRI) system, the method including: determining, at least in part by using a sensor device, location information that indicates a location of an MR-incompatible object relative to the MRI system, the MRI system generating a polarizing magnetic field for imaging a subject; based on the determined location information, determining, by a control unit associated with the MRI system, that the MR-incompatible object poses an operational hazard to the MRI system; and in response to determining that the MR-incompatible object poses an operational hazard to the MRI system, reducing, by the control unit, a strength of the polarizing magnetic field.Type: GrantFiled: August 20, 2018Date of Patent: January 7, 2020Assignee: Synaptive Medical (Barbados) Inc.Inventors: Cameron Anthony Piron, Chad Tyler Harris, Jeff Alan Stainsby, Alexander Gyles Panther, Gai Sela
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Patent number: 10376250Abstract: A medical navigation system is provided for performing at least part of an assessment of a non-living body. The medical navigation system comprises a positioning device having a positioning arm with an end effector at the end of the positioning arm, an imaging device coupled to the end effector, and a controller electrically coupled to the positioning device and the imaging device. The controller has a processor coupled to a memory and a display. The controller is configured to generate a signal to move the positioning arm to position the imaging device through a range of motion to perform a scan of a surface of the body and receive and save as data in the memory signals generated by the imaging device during the range of motion.Type: GrantFiled: March 23, 2015Date of Patent: August 13, 2019Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Kai Michael Hynna, Joshua Lee Richmond, Alexander Gyles Panther, Thanh Vinh Vuong