Patents by Inventor Bernard Yan

Bernard Yan 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).

  • Navigable system for catheter based endovascular neurosurgery
    Patent number: 8551041
    Abstract: A navigable system for catheter based endovascular neurosurgery including: a micro-motor (3) including a piezoelectric actuator (5) mounted to a free end of a guidewire or micro-catheter (2), the piezoelectric actuator (5) including a piezoelectric element (7), and an elongate transducer (9) mounted on the piezoelectric element (7) and extending therefrom, the transducer (9) being formed from an asymmetric hollow member, and an end member (15) located at a free end of the transducer (9); wherein electrical excitation of the piezoelectric element (7) induces one or both orthogonal flexural and axial vibration modes within the transducer (9), the coupling of the induced vibration modes thereby resulting in rotation of the end member (15) with three degrees of freedom (DOF).
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: October 8, 2013
    Assignee: Royal Melbourne Institute of Technology
    Inventors: James Friend, Leslie Yeo, Bernard Yan
  • NAVIGABLE SYSTEM FOR CATHETER BASED ENDOVASCULAR NEUROSURGERY
    Publication number: 20120289897
    Abstract: A navigable system for catheter based endovascular neurosurgery including: a micro-motor (3) including a piezoelectric actuator (5) mounted to a free end of a guidewire or micro-catheter (2), the piezoelectric actuator (5) including a piezoelectric element (7), and an elongate transducer (9) mounted on the piezoelectric element (7) and extending therefrom, the transducer (9) being formed from an asymmetric hollow member, and an end member (15) located at a free end of the transducer (9); wherein electrical excitation of the piezoelectric element (7) induces one or both orthogonal flexural and axial vibration modes within the transducer (9), the coupling of the induced vibration modes thereby resulting in rotation of the end member (15) with three degrees of freedom (DOF).
    Type: Application
    Filed: September 3, 2010
    Publication date: November 15, 2012
    Applicant: Monash University
    Inventors: James Friend, Leslie Yeo, Bernard Yan