Patents by Inventor Jeffery W. Zerfas

Jeffery W. Zerfas 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).

  • APPARATUS FOR THE PERCUTANEOUS MARKING OF A LESION
    Publication number: 20170119492
    Abstract: A method for safely operating a marking apparatus includes: providing a handle, a cannula that extends from the handle, a stylet slidably received within a lumen of the cannula for movement between a ready position and an extended position, and a plunger coupled to the stylet; providing a safety that comprises a channel provided on one of the handle and the plunger and a catch provided on the other of the handle and the plunger; defining a safety-on position wherein the catch and the channel are rotationally misaligned; defining a safety-off position wherein the catch and the channel are rotationally aligned; and rotating the catch with respect to the channel to move the safety from the safety-on position to the safety-off position to permit movement of the plunger and the stylet from the ready position to the extended position to expel the imaging marker from the cannula.
    Type: Application
    Filed: January 18, 2017
    Publication date: May 4, 2017
    Inventors: Richard M. Chesbrough, Steven E. Field, Ryan L. Goosen, Jeffery W. Zerfas, Richard E. Davis
  • Apparatus for the percutaneous marking of a lesion
    Patent number: 9579159
    Abstract: A biopsy marking apparatus for placing a radiopaque marker at the location of a percutaneous biopsy. The biopsy marking apparatus comprises an introducer in combination with a radiopaque marker. The introducer ejects the radiopaque marker at the location of the biopsy. The introducer is configured to completely eject the radiopaque marker and prevent it from being subsequently drawn into the introducer as the introducer is removed from the biopsied tissue mass. The radiopaque marker has enhanced radiopaque characteristics and enhanced non-migration characteristics.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 28, 2017
    Assignees: Bard Peripheral Vascular, Inc., Bard Shannon Limited
    Inventors: Richard M. Chesbrough, Steven E. Field, Ryan L. Goosen, Jeffery W. Zerfas, Richard E. Davis
  • APPARATUS FOR THE PERCUTANEOUS MARKING OF A LESION
    Publication number: 20140058258
    Abstract: A biopsy marking apparatus for placing a radiopaque marker at the location of a percutaneous biopsy. The biopsy marking apparatus comprises an introducer in combination with a radiopaque marker. The introducer ejects the radiopaque marker at the location of the biopsy. The introducer is configured to completely eject the radiopaque marker and prevent it from being subsequently drawn into the introducer as the introducer is removed from the biopsied tissue mass. The radiopaque marker has enhanced radiopaque characteristics and enhanced non-migration characteristics.
    Type: Application
    Filed: November 5, 2013
    Publication date: February 27, 2014
    Applicant: Bard Peripheral Vascular, Inc. and Bard Shannon Limited
    Inventors: Richard M. Chesbrough, Steven E. Field, Ryan L. Goosen, Jeffery W. Zerfas, Richard E. Davis