Patents by Inventor Raymond P. Knox

Raymond P. Knox 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).

  • Single piece hub/strain relief that can be injection molded over a shaft
    Patent number: 6068622
    Abstract: Medical vascular catheters adapted to be inserted into a blood vessel from an incision through the skin of a patient for introducing other devices or fluids for diagnostic or therapeutic purposes into the patient's vasculature and manufacturing methods are disclosed. The catheters have a unitary catheter hub and strain relief formed at the proximal end of the catheter body for attachment to other apparatus and for inhibiting kinking of the catheter body. The unitary catheter hub and strain relief is formed of a proximal hub portion and a distal strain relief coil surrounding the catheter body in a catheter hub/body junction. The distal strain relief coil is shaped as a distally tapered, single coil to provide distally increasing flexibility and uniform bending characteristics in 36.degree. around the circumference of the catheter body received within the within the strain relief coil lumen.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: May 30, 2000
    Assignee: Medtronic Inc.
    Inventors: Ghaleb A. Sater, Jeffrey J. Witts, Raymond P. Knox