Patents by Inventor Walter Stubblefield, III

Walter Stubblefield, III 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).

  • PERCUTANEOUS EXTRACTOR
    Publication number: 20200352584
    Abstract: An extractor includes a rigid outer cannula forming a lumen extending between a proximal end and an opposing distal end of the outer cannula. An inner cannula is slidably positioned within the lumen of the outer cannula. The inner cannula forms a central passage along a longitudinal axis of the inner cannula extending between a proximal end and an opposing distal end of the inner cannula. A plurality of secondary passages are positioned about the central passage and extend along at least a portion of a length of the inner cannula between the proximal end and the distal end of the inner cannula. An annularly expanding and retracting extraction mechanism at the distal end of the inner cannula is operable to capture and extract kidney stones from within a lumen of a patient.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 12, 2020
    Applicant: Cook Medical Technologies LLC
    Inventors: Sydney CARDINALI, Megan GERSTNER, Ashley SINK, Walter STUBBLEFIELD, III, Timothy WARDLE
  • PERCUTANEOUS EXTRACTOR WITH LASER ASSEMBLY
    Publication number: 20190380725
    Abstract: An extractor includes a rigid outer cannula forming a lumen extending between a proximal end and an opposing distal end of the outer cannula. An inner cannula is slidably positioned within the lumen of the outer cannula. The inner cannula forms a central passage along a longitudinal axis of the inner cannula extending between a proximal end and an opposing distal end of the inner cannula. A plurality of secondary passages are positioned about the central passage and extend along at least a portion of a length of the inner cannula between the proximal end and the distal end of the inner cannula. An annularly expanding and retracting extraction mechanism at the distal end of the inner cannula is operable to capture and extract kidney stones from within a lumen of a patient.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 19, 2019
    Applicant: Cook Medical Technologies LLC
    Inventors: Sydney Cardinali, Megan Gerstner, Ashley Sink, Walter Stubblefield, III, Timothy Wardle