Patents by Inventor Thomas Wanchell

Thomas Wanchell 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).

  • Trocar insertion apparatus
    Patent number: 7479150
    Abstract: Apparatus for forming and enlarging a percutaneous penetration are disclosed. The apparatus includes an elongate dilation member including a radially expandable member having a first cross-sectional area; and an elongate expansion member including a tubular element having a second cross-sectional area which is larger than the first cross-sectional area. The apparatus further includes an advancing apparatus having a first arm with a first engaging feature for engaging the handle of the dilation member; a second arm with a second engaging feature for engaging the handle of the expansion member; and an operation member; the first arm and the second arm being connected so that operation of the operation member approximates the first engaging feature and the second engaging feature together.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: January 20, 2009
    Assignee: Tyco Healthcare Group LP
    Inventors: Csaba Rethy, Thomas Wanchell, Kourosh Azarbarzin
  • Trocar insertion apparatus
    Publication number: 20050203565
    Abstract: Apparatus for forming and enlarging a percutaneous penetration are disclosed. The apparatus includes an elongate dilation member including a radially expandable member having a first cross-sectional area; and an elongate expansion member including a tubular element having a second cross-sectional area which is larger than the first cross-sectional area. The apparatus further includes an advancing apparatus having a first arm with a first engaging feature for engaging the handle of the dilation member; a second arm with a second engaging feature for engaging the handle of the expansion member; and an operation member; the first arm and the second arm being connected so that operation of the operation member approximates the first engaging feature and the second engaging feature together.
    Type: Application
    Filed: September 16, 2004
    Publication date: September 15, 2005
    Inventors: Csaba Rethy, Thomas Wanchell, Kourosh Azarbarzin