Patents Assigned to Dalhousie University
  • Patent number: 10350435
    Abstract: Disclosed herein are systems, methods, and computer-readable storage devices for manufacturing patient-specific bolus for use in targeted radiotherapy treatment. Based on dose calculations without a bolus and based on three-dimensional scan data of a patient, the example system generates a model of a bolus for targeting radiotherapy treatment to a planning target volume or target region within the patient. The system can perform several iterations to generate a resulting model for the bolus. Then, the system can generate instructions for controlling a three-dimensional printer to generate the bolus that conforms to the patient's skin surface while also specifically targeting the planning target volume for the radiotherapy treatment. In this way, the amount of radiotherapy treatment administered to other tissue is reduced, while the costs, time, and human involvement in creating the bolus are significantly reduced.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: July 16, 2019
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: James Robar, Shiqin Su
  • Patent number: 10322410
    Abstract: A compound having a chemical formula according to Formula (I) is disclosed where one of Z1, Z2 and Z3 is and one of the Z1, Z2, and Z3 that is bonded to a carbon atom that is adjacent to the carbon atom bonded to is P(AR1)(A?R2). Metal-based catalyst and pre-catalysts, such as nickel-based catalysts and precatalysts, where the metal is complexed to the compound are also disclosed. Methods of forming C(sp2)-N bonds are also disclosed.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: June 18, 2019
    Assignee: DALHOUSIE UNIVERSITY
    Inventor: Mark John Stradiotto
  • Patent number: 10300055
    Abstract: Methods are provided for the treatment of Parkinson's disease (PD) in patients bearing mutations in the LRRK2 gene. A therapeutically effective amount of piperazine derivative compounds are employed to inhibit the biological activity of ArfGAP1, inhibition that counteracts the deleterious effects of mutations in, or increased expression of, the LRRK2 protein.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 28, 2019
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Michel Roberge, Chris McMaster, Carla Zimmerman, Pak Poon
  • Publication number: 20190127372
    Abstract: Methods and compositions are provided for the treatment of familial exudative vitreoretinopathy (FEVR) through the administration of a therapeutically effective amount of a sphingosine-1-phosphate receptor type 2 (S1PR2) antagonist. Also provided herein are compounds which contain bioisosteric replacements of the urea group of JTE-013 and analogs thereof, and their use in treating retinopathies and diseases characterized by insufficient angiogenesis.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 2, 2019
    Applicant: DALHOUSIE UNIVERSITY
    Inventors: Christopher McMaster, Gordon Simms
  • Patent number: 10181317
    Abstract: A high frequency ultrasound analog beamformer comprises a linear array of surface acoustic wave (SAW) devices formed on a single crystal piezoelectric substrate, such as a PMN-PT single crystal piezoelectric substrate. Each SAW device comprises ultrasound input and output electrode structures separated by a variable delay structure. The beamformer further comprises a delay controller operably connected to each variable delay structure to control the delay of each SAW device to dynamically focus signals received at each input electrode.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 15, 2019
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Jeremy Brown, Robert Bruce Alexander Adamson
  • Publication number: 20190008744
    Abstract: The present invention provides a method for removing a tattoo in a region of skin the method comprises administering to a least a portion of the tattoo a composition comprising an effective amount of a bisphosphonate and at least one pharmaceutically acceptable excipient to at least cause fading of the tattoo in said region.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 10, 2019
    Applicant: Dalhousie University
    Inventor: Alec Guy Falkenham
  • Patent number: 10149660
    Abstract: To address limitations of conventional transducers, a phased array transducer is provided with a form factor suitable o for packaging into, e.g., an endoscope. A method of manufacture of small packaging transducers is also provided, whereby the overall package size is reduced by electrically connecting signal wires to array electrodes at an angle approximately normal to the array surface, thus largely eliminating the bend radius requirements of conventional printed circuit boards or flex circuits.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: December 11, 2018
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Andre B. Bezanson, Robert B. A. Adamson, Jeremy A. Brown
  • Patent number: 10105302
    Abstract: The present invention provides a method for removing a tattoo in a region of skin the method comprises administering to a least a portion of the tattoo, and a composition comprising an effective amount of a bisphosphonate and at least one pharmaceutically acceptable excipient to at least cause fading of the tattoo in said region.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 23, 2018
    Assignee: Dalhousie University
    Inventor: Alec Guy Falkenham
  • Patent number: 10058543
    Abstract: Methods and compositions are provided for the treatment of familial exudative vitreoretinopathy (FEVR) and retinopathy of prematurity (ROP) through the administration of a therapeutically effective amount of a Sphingosine-1-phosphate receptor type 2 (S1PR2) inhibitor.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: August 28, 2018
    Assignee: DALHOUSIE UNIVERSITY
    Inventor: Christopher McMaster
  • Patent number: 10039454
    Abstract: A method for quantifying, during pacemapping, a comparison of a BSPM of interest to a pace site BSPM. The method may include receiving at a computing device a plurality of ECG signals from an acquisition system. The pace site BSPM may be calculated using the plurality of ECG signals. The BSPM of interest may be compared to the pace site BSPM, by: retrieving the BSPM of interest from memory accessible by the computing device; and, calculating one or more comparison metrics for the BSPM of interest as compared to the pace site BSPM. An indication of similarity between the BSPM of interest and the pace site BSPM based on the comparison metric calculated may be displayed on a user interface in communication with the computing device.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 7, 2018
    Assignee: Dalhousie University
    Inventors: John Lewis Sapp, Jr., Bohumil Milan Horacek, Ahmed Mohamed Fahmey El-Damaty
  • Patent number: 9981139
    Abstract: Among other things, in general, an acousto-mechanical transducer for the interconversion of electricity and acoustic waves is described. Methods are also described for the construction of such transducers.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 29, 2018
    Assignee: Dalhousie University
    Inventors: Robert B. A. Adamson, Jeffrey R. Leadbetter, Jeremy A. Brown, Manohar Bance
  • Patent number: 9949658
    Abstract: A method for quantifying, during pacemapping, a comparison of a BSPM of interest to a pace site BSPM. The method may include receiving at a computing device a plurality of ECG signals from an acquisition system. The pace site BSPM may be calculated using the plurality of ECG signals. The BSPM of interest may be compared to the pace site BSPM, by: retrieving the BSPM of interest from memory accessible by the computing device and, calculating one or more comparison metrics for the BSPM of interest as compared to the pace site BSPM. An indication of similarity between the BSPM of interest and the pace site BSPM based on the comparison metric calculated may be displayed on a user interface in communication with the computing device.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: April 24, 2018
    Assignees: DALHOUSIE UNIVERSITY, BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: John Lewis Sapp, Jr., Bohumil Milan Horacek, Meir Bar-Tal, Tal Haim Baron
  • Publication number: 20170340235
    Abstract: A method for quantifying, during pacemapping, a comparison of a BSPM of interest to a pace site BSPM. The method may include receiving at a computing device a plurality of ECG signals from an acquisition system. The pace site BSPM may be calculated using the plurality of ECG signals. The BSPM of interest may be compared to the pace site BSPM, by: retrieving the BSPM of interest from memory accessible by the computing device and, calculating one or more comparison metrics for the BSPM of interest as compared to the pace site BSPM. An indication of similarity between the BSPM of interest and the pace site BSPM based on the comparison metric calculated may be displayed on a user interface in communication with the computing device.
    Type: Application
    Filed: April 20, 2017
    Publication date: November 30, 2017
    Applicants: DALHOUSIE UNIVERSITY, BIOSENSE WEBSTER (ISRAEL) LTD.
    Inventors: JOHN LEWIS SAPP, JR., BOHUMIL MILAN HORACEK, MEIR BAR-TAL, TAL HAIM BARON
  • Patent number: 9750424
    Abstract: A method for quantifying, during pacemapping, a comparison of a BSPM of interest to a pace site BSPM. The method may include receiving at a computing device a plurality of ECG signals from an acquisition system. The pace site BSPM may be calculated using the plurality of ECG signals. The BSPM of interest may be compared to the pace site BSPM, by: retrieving the BSPM of interest from memory accessible by the computing device; and, calculating one or more comparison metrics for the BSPM of interest as compared to the pace site BSPM. An indication of similarity between the BSPM of interest and the pace site BSPM based on the comparison metric calculated may be displayed on a user interface in communication with the computing device.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 5, 2017
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: John Lewis Sapp, Jr., Bohumil Milan Horacek
  • Patent number: 9730676
    Abstract: High-frequency ultrasound imaging can be performed with greater quality and suppressed grating lobes by using methods and systems for effectively reducing the temporal length of transmit grating lobe signals in received ultrasound echoes. Systems and methods are provided for improved high-frequency ultrasound imaging. In various aspects, the method of shortening the time domain of grating lobe signals comprises splitting an array of N transmit elements into K sub-apertures. In further aspects, the grating lobes are suppressed by performing signal processing of the shortened grating lobe signals. In certain aspects, the signal processing method comprises weighting the samples by a calculated phase coherence factor.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: August 15, 2017
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Jeremy Brown, Robert Adamson, Zahra Torbatian, Manohar Bance
  • Patent number: 9728708
    Abstract: Among other things, piezoelectric materials and methods of their manufacture are described; particularly methods of forming regions of varying crystal structure within a relaxor piezoelectric substrate. Such methods may including heating the piezoelectric substrate above the transition temperature and below the Curie temperature such that a first phase transition occurs to a first crystal structure; rapidly cooling the piezoelectric substrate below the transition temperature at a cooling rate that is sufficiently high for the first crystal structure to persist; and applying an electric field through one or more selected regions of the piezoelectric substrate, such that within the one or more selected regions, a second phase transition occurs and results in a second crystal structure.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: August 8, 2017
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Philip P. Garland, Robert B. A. Adamson, Andre B. Bezanson, Jeremy A. Brown
  • Publication number: 20170065598
    Abstract: Amblyopia is a prevalent form of visual impairment that generally arises during infancy and early childhood when inputs to the visual cortex form the two eyes are poorly balanced. Disclosed herein are methods involving retinal inactivation of at least one retina to treat visual impairment in the form of amblyopia or other conditions.
    Type: Application
    Filed: August 9, 2016
    Publication date: March 9, 2017
    Applicants: Massachusetts Institute of Technology, Dalhousie University
    Inventors: Mark Firman Bear, Kevin R. Duffy, Donald E. Mitchell, Ming-Fai Fong, Arnold Heynen, Jeffrey P. Gavornik
  • Patent number: 9555156
    Abstract: Disclosed herein are compositions and methods for making germanium-based glass polyalkenoate cements. Also disclosed are methods for their use as bone cements for bone augmentation procedures.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 31, 2017
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Victoria Dickinson, Daniel Boyd, Brett Dickey, Sharon Kehoe
  • Patent number: 9511107
    Abstract: Described herein are phenolic compositions derived from apple skins. In particular, described herein are flavonoid-rich fractions derived from apple skin extract. The compositions are useful in the prevention and treatment of conditions associated with oxidative stress and/or inflammation, including certain neurodegenerative diseases. Methods of producing the compositions are also described.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 6, 2016
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Handunkutti Pathirannehalage Vasantha Rupasinghe, George S. Robertson
  • Patent number: 9352069
    Abstract: Disclosed herein are compositions and methods for making germanium-based glass polyalkenoate cements. Also disclosed are methods for their use as bone cements for bone augmentation procedures.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: May 31, 2016
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Victoria Dickinson, Daniel Boyd, Brett Dickey, Sharon Kehoe