Patents by Inventor Jon Norstrom

Jon Norstrom 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).

  • Patent number: 6120480
    Abstract: A catheter introducer assembly includes an introducer sheath mounted on a dilator. The distal end of the dilator protrudes beyond the distal end of the sheath and defines an arrowhead having a proximally facing surface that cooperates with the distal end of the sheath to reduce the risk of tissue trauma while facilitating smooth entry into and through tissue. The proximal hubs of the dilator and sheath are configured with respect to the relation between the distal end of the dilator and sheath to provide smooth controlled withdrawal of the dilator through the sheath. The sheath is attached, at its proximal end, to a housing with a mechanical connection that does not require the use of adhesives, welding or other bonding techniques. The connection also may incorporate an integral strain relief for the proximal end of the sheath.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 19, 2000
    Assignee: Medtronic AVE, Inc.
    Inventors: John Zhang, James Culhane, Tai Kien, Jon Norstrom, Michael LeBlanc