Patents by Inventor Charles Trahan

Charles Trahan 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).

  • Access portal including silicone foam three layer seal
    Patent number: 8449459
    Abstract: A surgical access portal includes a seal housing, a sleeve mountable to the seal housing, and a seal disposed within the seal housing. The seal includes a first layer having an opening for the reception and passage of a surgical instrument, a second continuous layer for providing a fluid tight seal in the seal housing in the presence and/or in the absence of a surgical instrument, and a third layer having an opening for the passage of a surgical instrument therethrough. The first and third layers have a higher density than the second layer for maintaining the second layer in an axially compressed state therebetween.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: May 28, 2013
    Assignee: Covidien LP
    Inventors: Andrew Hudon, Sally Carter, Charles Trahan
  • ACCESS PORTAL INCLUDING SILICONE FOAM THREE LAYER SEAL
    Publication number: 20100249515
    Abstract: A surgical access portal includes a seal housing, a sleeve mountable to the seal housing, and a seal disposed within the seal housing. The seal includes a first layer having an opening for the reception and passage of a surgical instrument, a second continuous layer for providing a fluid tight seal in the seal housing in the presence and/or in the absence of a surgical instrument, and a third layer having an opening for the passage of a surgical instrument therethrough. The first and third layers have a higher density than the second layer for maintaining the second layer in an axially compressed state therebetween.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 30, 2010
    Inventors: Andrew Hudon, Sally Carter, Charles Trahan