Patents Assigned to Dalhousie University
  • Patent number: 9101649
    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: May 10, 2011
    Date of Patent: August 11, 2015
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Handunkutti Pathirannehalage Vasantha Rupasinghe, George S. Robertson
  • Patent number: 9061001
    Abstract: Methods and compositions for enhancing an immune response to a selected antigen are described. The methods are useful for the treatment and prevention of microbial infections, such as infections caused by bacteria, viruses, fungi and parasites. The methods and compositions include host defense peptides, polyphosphazenes and immunostimulatory sequences to enhance the immune response to a coadministered antigen.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: June 23, 2015
    Assignees: University of Saskatchewan, Dalhousie University, International Vaccines Institute, University of British Columbia
    Inventors: Sylvia van Drunen Littel-van den Hurk, Volker Gerdts, Andrew Potter, Lorne Babiuk, Robert Hancock, Scott Halperin, Jennifer Kovacs-Nolan, George Mutwiri, Song Lee, Mi-Na Kweon, Jason Kindrachuk, Melissa Elliott
  • Patent number: 9033888
    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: February 8, 2011
    Date of Patent: May 19, 2015
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Jeremy Brown, Robert Adamson, Zahra Torbatian, Manohar Bance
  • Patent number: 8965021
    Abstract: An implantable bone-conduction hearing actuator based on a piezoelectric element, such as a unimorph or bimorph cantilever bender, is described. Unlike other implantable bone conduction hearing actuators, the device is subcutaneous and once implanted is entirely invisible. The device excites bending in bone through a local bending moment rather than the application of a point force as with conventional bone-anchored hearing aids.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 24, 2015
    Assignee: Dalhousie University
    Inventors: Robert Bruce Alexander Adamson, Jeremy A. Brown, Manohar Bance, Akhilesh Kotiya
  • Publication number: 20150051383
    Abstract: Among other things, in general, a two-stage filtration and extraction assembly is described, as well as methods of use thereof.
    Type: Application
    Filed: May 9, 2013
    Publication date: February 19, 2015
    Applicant: Dalhousie University
    Inventors: Alan A. Doucette, Mark James Wall
  • Patent number: 8942400
    Abstract: An implantable bone-conduction hearing actuator based on a piezoelectric element, such as a unimorph or bimorph cantilever bender, is described. Unlike other implantable bone conduction hearing actuators, the device is subcutaneous and once implanted is entirely invisible. The device excites bending in bone through a local bending moment rather than the application of a point force as with conventional bone-anchored hearing aids.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: January 27, 2015
    Assignee: Dalhousie University
    Inventors: Robert Bruce Alexander Adamson, Jeremy A. Brown, Manohar Bance, Akhelish Kotiya
  • Publication number: 20140294646
    Abstract: A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: Dalhousie University
    Inventors: Braden Murphy, Aziz Martakoush, Adam Krajewski, Brett Dickey, Jean-Francois Pelletier, Darrel Doman
  • Publication number: 20140248313
    Abstract: Methods and compositions for enhancing an immune response to a selected antigen are described. The methods are useful for the treatment and prevention of microbial infections, such as infections caused by bacteria, viruses, fungi and parasites. The methods and compositions include host defense peptides, polyphosphazenes and immunostimulatory sequences to enhance the immune response to a coadministered antigen.
    Type: Application
    Filed: February 15, 2013
    Publication date: September 4, 2014
    Applicants: University of Saskatchewan, International Vaccine Institute, Dalhousie University, The University of British Columbia
    Inventors: University of Saskatchewan, The University of British Columbia, Dalhousie University, International Vaccine Institute
  • Publication number: 20140163395
    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: June 20, 2012
    Publication date: June 12, 2014
    Applicant: Dalhousie University
    Inventors: John Lewis Sapp, JR., Bohumil Milan Horacek, Ahmed Mohamed Fahmey El-Damaty
  • Patent number: 8712011
    Abstract: Methods and apparatus for planning imaging include planning imaging in conjunction with planning a radiation treatment. A radiation dose due to planned imaging may be calculated and used in optimizing a plan for delivering therapeutic radiation. Imaging and treatment may be performed using radiation beams having different characteristics. In some embodiments an imaging beam is generated using a low-Z target and a therapy beam is generated using a high-Z target. A radiation treatment planning system may include data characterizing both the imaging beam and the treatment beam.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: April 29, 2014
    Assignee: Dalhousie University
    Inventors: James Leonard Robar, Alexander Owen MacDonald
  • Patent number: 8695564
    Abstract: A toroidal engine that can be powered by a fuel/air mixture or by a compressed gas source. The toroidal engine uses one-way bearings to transfer torque generated in a toroidal chamber directly to a drive shaft. Pairs of pistons are mounted on two crank assemblies, which are concentric with the drive shaft. One-way bearings allow the crank assemblies to turn, one at a time, in one direction only. The crank assemblies are directly coupled to the drive shaft, which eliminates the need for complex gear and linkage arrangements. A system can be used with the toroidal engine to alternately stop the crank assemblies at a pre-determined position and to time the ignition of the engine.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: April 15, 2014
    Assignee: Dalhousie University
    Inventors: Braden Murphy, Aziz Martakoush, Adam Krajewski, Brett Dickey, Jean-Francois Pelletier, Darrel Doman
  • Publication number: 20140031603
    Abstract: Methods and apparatus for planning imaging include planning imaging in conjunction with planning a radiation treatment. A radiation dose due to planned imaging may be calculated and used in optimizing a plan for delivering therapeutic radiation. Imaging and treatment may be performed using radiation beams having different characteristics. In some embodiments an imaging beam is generated using a low-Z target and a therapy beam is generated using a high-Z target. A radiation treatment planning system may include data characterizing both the imaging beam and the treatment beam.
    Type: Application
    Filed: September 26, 2013
    Publication date: January 30, 2014
    Applicant: DALHOUSIE UNIVERSITY
    Inventors: James Leonard Robar, Alexander Owen MacDonald
  • Publication number: 20130295020
    Abstract: A radiopaque particulate material one or more of SiO2, TiO2, La2O3, Na2O and MgO and useful for embolization which optionally includes therapeutic components that are released in vivo.
    Type: Application
    Filed: January 27, 2012
    Publication date: November 7, 2013
    Applicant: DALHOUSIE UNIVERSITY
    Inventors: Robert J. Abraham, Sharon Kehoe, Daniel Boyd
  • Patent number: 8565377
    Abstract: Imaging may be performed using a megavoltage (MV) radiotherapy treatment system. An electron beam directed at a low-Z target generates an imaging cone beam. The cone beam may be shaped to conform to projections of volumes of interest in a subject. Image filling may be performed to reduce artifacts in the volumes of interest. Image data for filling may be derived from digitally reconstructed radiographs.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: October 22, 2013
    Assignee: Dalhousie University
    Inventors: James Leonard Robar, Alexander Owen MacDonald
  • Publication number: 20130253185
    Abstract: The present invention provides novel compounds and ligands that are useful in transition metal catalyzed cross-coupling reactions. For example, the compounds and ligands of the present invention are useful in palladium or gold catalyzed cross-coupling reactions.
    Type: Application
    Filed: November 17, 2011
    Publication date: September 26, 2013
    Applicant: Dalhousie University
    Inventors: Rylan J. Lundgren, Mark Stradiotto
  • Publication number: 20130165396
    Abstract: Pharmaceutical and nutraceutical compositions and methods for treating cardiovascular disease, comprising apple skin extracts which can reduce cholesterol levels and inhibit low density lipoprotein (LDL) oxidation in a subject, are provided.
    Type: Application
    Filed: May 26, 2011
    Publication date: June 27, 2013
    Applicants: NATIONAL RESEARCH COUNCIL OF CANADA, DALHOUSIE UNIVERSITY
    Inventors: Handunkutti Pathirannehalage Vasantha Rupasinghe, Yanwen Wang, Surangi Kumari Priyadarshani Heenetimulla Thilakarathna
  • Publication number: 20130133663
    Abstract: A respiratory device filter (10) comprises a housing (12) having a mouthpiece (16) and a body (18). The housing (12) defines an inner sidewall (34) and a conical filter (14) is disposed within the housing (12). The conical filter (14) includes a first end that defines an apex (42) and a second end that defines an opening (44). An apex retention member (46) extends from the inner sidewall (34) and is secured to the apex (42) of the conical filter (14).
    Type: Application
    Filed: May 11, 2011
    Publication date: May 30, 2013
    Applicant: DALHOUSIE UNIVERSITY
    Inventors: Geoffrey N. Maksym, Ewan Kearney MacKenzie, Christopher Gordon Estkowski, Guy Drapeau
  • Publication number: 20130065843
    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: Application
    Filed: May 10, 2011
    Publication date: March 14, 2013
    Applicant: DALHOUSIE UNIVERSITY
    Inventors: Handunkutti Pathirannehalage Vasantha Rupasinghe, George S. Robertson
  • Patent number: D692555
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 29, 2013
    Assignee: Dalhousie University
    Inventors: Geoffrey Nicholas Maksym, Ewan Kearney MacKenzie, Christopher Gordon Estkowski, Guy Drapeau
  • Patent number: D693467
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: November 12, 2013
    Assignee: Dalhousie University
    Inventors: Alan A Doucette, Mark James Wall