Patents by Inventor Hassan Razvi

Hassan Razvi 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).

  • Handle for interchangeable medical device
    Patent number: 8043303
    Abstract: A rigid extractor is revealed, a rigid device for use in percutaneous procedures to remove kidney stones directly from the kidneys. The rigid extractor uses a handle fixed to an outer rigid cannula, and an inner cannula to control an extraction device that may be removable from the inner cannula. The extractor is desirably used with a fluoroscope, in which the surgeon maneuvers the extractor with the aid of a view of the operating field provided by the fluoroscope. The surgeon then maneuvers the extractor to grasp the kidney stones and remove from the patient. The extractor may also be used with a nephroscope. The device may be used with a removable extraction device such as a basket, a grasper a pair of jaws, or a pair of scissors.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: October 25, 2011
    Assignee: Cook Medical Technologies LLC
    Inventors: Hassan Razvi, John Denstedt, Gary L. Butler, Thomas L. Foster, Frank J. Fischer, Jr.
  • HANDLE FOR INTERCHANGEABLE MEDICAL DEVICE
    Publication number: 20090030427
    Abstract: A rigid extractor is revealed, a rigid device for use in percutaneous procedures to remove kidney stones directly from the kidneys. The rigid extractor uses a handle fixed to an outer rigid cannula, and an inner cannula to control an extraction device that may be removable from the inner cannula. The extractor is desirably used with a fluoroscope, in which the surgeon maneuvers the extractor with the aid of a view of the operating field provided by the fluoroscope. The surgeon then maneuvers the extractor to grasp the kidney stones and remove from the patient. The extractor may also be used with a nephroscope. The device may be used with a removable extraction device such as a basket, a grasper a pair of jaws, or a pair of scissors.
    Type: Application
    Filed: July 22, 2008
    Publication date: January 29, 2009
    Applicant: Vance Products Incorporated, d/b/a Cook Urological Incorporated
    Inventors: Hassan Razvi, John Denstedt, Gary L. Butler, Thomas L. Foster, Frank J. Fischer, JR.