Patents by Inventor Leonard M. Emery

Leonard M. Emery 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).

  • Magnetostrictive transducer
    Patent number: 4986808
    Abstract: A magnetostrictive transducer comprising a plurality of elongated strips of magnetostrictive material, each strip having a proximal end, a distal end and a substantially V-shaped cross section wherein each arm of the V is formed by a longitudinal length of the strip, each strip being attached to an adjacent strip at both the proximal end and the distal end to form and integral substantially rigid column having a central axis with fins extending radially relative to said axis; and an ultrasonic resonant vibrator including such a transducer.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: January 22, 1991
    Assignee: Valleylab, Inc.
    Inventors: Alan Broadwin, Leonard M. Emery
  • Method and apparatus for ultrasonic surgical fragmentation and removal of tissue
    Patent number: 4827911
    Abstract: A method and apparatus for periodically interrupting ultrasonic power applied to a ultrasonically vibrating tip to control its amplitude between high and low or zero amplitudes with a selectible duty cycle and repetition rate provides enhanced fragmentation and improves surgical control. The duty cycle may also vary as a function of a remotely sensed parameter such as tissue temperature.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: May 9, 1989
    Assignee: Cooper LaserSonics, Inc.
    Inventors: Alan Broadwin, Alexander Kreizman, Chana Puiam, Vaclav O. Podany, Leonard M. Emery