Patents by Inventor William Preston Buchanan

William Preston Buchanan 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).

  • SYSTEMS AND DEVICES FOR ATRAUMATIC CATHETER INSERTION ALONG A GUIDEWIRE
    Publication number: 20230013948
    Abstract: A catheter system for atraumatic placement along a guidewire includes: a catheter including a cylindrical catheter body that defines a longitudinally extending interior lumen; and a guide device. The guide device includes: a conduit member for insertion into the interior lumen of the catheter body; a leading structure connected to a forward end of the conduit member, the leading structure including a cone and a sleeve extending forward from the cone; and an inner guide hole extending longitudinally through the leading structure and conduit member. In use, the guide device and catheter body are coaxially arranged, the cone is forward of the catheter, and the sleeve extends forward from the cone. The cone includes a shoulder, and a tapered exterior that increases diametrically from the sleeve to the shoulder. The shoulder abuts a distal end of the catheter to register insertion of the guide device in the catheter.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Inventors: Alexander R. Thomas, Todd O. Flohr, William Preston Buchanan
  • Systems and devices for atraumatic catheter insertion along a guidewire
    Patent number: 11452849
    Abstract: A catheter system for atraumatic placement along a guidewire includes: a catheter including a cylindrical catheter body that defines a longitudinally extending interior lumen; and a guide device. The guide device includes: a conduit member for insertion into the interior lumen of the catheter body; a leading structure connected to a forward end of the conduit member, the leading structure including a cone and a sleeve extending forward from the cone; and an inner guide hole extending longitudinally through the leading structure and conduit member. In use, the guide device and catheter body are coaxially arranged, the cone is forward of the catheter, and the sleeve extends forward from the cone. The cone includes a shoulder, and a tapered exterior that increases diametrically from the sleeve to the shoulder. The shoulder abuts a distal end of the catheter to register insertion of the guide device in the catheter.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: September 27, 2022
    Assignee: MicroLinerTechnologies, Inc.
    Inventors: Alexander R. Thomas, Todd O. Flohr, William Preston Buchanan
  • SYSTEMS AND DEVICES FOR ATRAUMATIC CATHETER INSERTION ALONG A GUIDEWIRE
    Publication number: 20220233825
    Abstract: A catheter system for atraumatic placement along a guidewire includes: a catheter including a cylindrical catheter body that defines a longitudinally extending interior lumen; and a guide device. The guide device includes: a conduit member for insertion into the interior lumen of the catheter body; a leading structure connected to a forward end of the conduit member, the leading structure including a cone and a sleeve extending forward from the cone; and an inner guide hole extending longitudinally through the leading structure and conduit member. In use, the guide device and catheter body are coaxially arranged, the cone is forward of the catheter, and the sleeve extends forward from the cone. The cone includes a shoulder, and a tapered exterior that increases diametrically from the sleeve to the shoulder. The shoulder abuts a distal end of the catheter to register insertion of the guide device in the catheter.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 28, 2022
    Inventors: Alexander R. Thomas, Todd O. Flohr, William Preston Buchanan