Patents by Inventor Freddy Y. C. Boey

Freddy Y. C. Boey 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).

  • Ultrasonic mechanical emulsifier
    Patent number: 7876025
    Abstract: A tubular piezoelectric transducer comprising a tube of piezoelectric material and having a plurality of external electrodes for inducing in a first end of the tube at least one movement of a plurality of possible movements; at least two spokes attached to and extending radially inwardly of the tube for movement with the first end; a hub at an inner end of the at least two spokes and being located on the longitudinal axis of the tube, the hub being attached to the at least two spokes for movement therewith; the hub being for receiving therein a probe for movement of the probe with the hub. A phaco-probe incorporating the transducer is also disclosed.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: January 25, 2011
    Assignees: Nanyang Technological University, Tan Tock Seng Hospital
    Inventors: Jan Ma, Freddy Y. C. Boey, Tock Han Lim
  • Ultrasonic Mechanical Emulsifier
    Publication number: 20080315720
    Abstract: A tubular piezoelectric transducer comprising a tube of piezoelectric material and having a plurality of external electrodes for inducing in a first end of the tube at least one movement of a plurality of possible movements; at least two spokes attached to and extending radially inwardly of the tube for movement with the first end; a hub at an inner end of the at least two spokes and being located on the longitudinal axis of the tube, the hub being attached to the at least two spokes for movement therewith; the hub being for receiving therein a probe for movement of the probe with the hub. A phaco-probe incorporating the transducer is also disclosed.
    Type: Application
    Filed: September 7, 2006
    Publication date: December 25, 2008
    Inventors: Jan Ma, Freddy Y.C. Boey, Tock Han Lim