Patents Represented by Attorney Thomas M. Johnston, Esq.
  • Patent number: 7981094
    Abstract: An implantable access device for intravenous delivery and/or withdrawal of fluids is described herein. The access device includes a septum which is movably supported within a housing of the access device from a retracted, low profile position to an extended, high profile position to facilitate easy identification of the location of the septum by medical personnel.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: July 19, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Todd M. Chelak
  • Patent number: 7943077
    Abstract: A method for manufacturing a separated tip catheter includes the following steps: positioning first and second cores in a cavity of a mold, the cavity having a substantially elongated shape and including a first end portion and a second end portion, wherein the first and second cores are oriented substantially parallel to each other; placing a sheet of material having a higher melting temperature than a molding material across the first end portion of the cavity; and injecting the molding material into the cavity of the mold.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: May 17, 2011
    Assignee: Tyco Healthcare Group LP
    Inventor: Michael R. Sansoucy
  • Patent number: 7820734
    Abstract: The present disclosure provides lubricious antimicrobial coating vehicles for medical devices capable of reducing the coefficient of friction of such devices upon exposure thereof to moisture and imparting antimicrobial properties to said devices. The coating vehicle allows the introduction of a pharmacological additive having a release rate that is within acceptable pharmacokinetic criteria.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 26, 2010
    Assignee: Tyco Healthcare Group LP
    Inventor: Diane L. McGhee
  • Patent number: 7776005
    Abstract: A catheter is provided that includes an elongated tubular body extending to a distal end. The tubular body has a first and a second lumen with a septum disposed therebetween. The tubular body includes a first wall that defines the first lumen and a second wall that defines the second lumen. A portion of the septum extends distally beyond the first lumen and the second lumen. The first wall includes a first wall extension that extends distally beyond the first lumen and is spaced apart from the portion of the septum. The first wall extension defines a concave surface facing the portion of the septum. In an alternate embodiment, the catheter includes a tip with spiraled configuration. The catheter may include a third lumen.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: August 17, 2010
    Assignee: Covidien AG
    Inventors: Kurt Haggstrom, Christopher V. Rainieri
  • Patent number: 7731708
    Abstract: A hemodialysis catheter assembly adapted for use in a subcutaneous tunneling procedure incorporates a mechanism for securing the catheter hub member to the elongated catheter, and to provide the requisite fluid communication between fluid passages within the hub and the catheter lumens within the catheter. The catheter hub member may be connected to the elongated catheter after implantation of the catheter via a subcutaneous tunneling procedure.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: June 8, 2010
    Assignee: Tyco Healthcare Group LP
    Inventors: Brett Haarala, Richard Braga, Robert Frechette