Patents Assigned to Intramed Laboratories
  • Patent number: 5584842
    Abstract: A valvulotome for disrupting vein valves in in-situ procedures, and for distrupting the vein valves in vein segments to be used in CABG procedures. The valvulotome includes an elongate blade mounting member and a thin, scythe-shaped cutting blade. The cutting blade is mounted relative to the blade mounting member such that the plane defined by the blade lies on the axis defined by the blade mounting member. The cutting blade has a fixed end, a free end, a cutting edge and a blunt back edge. The fixed end is fixedly attached to a distal portion of the blade mounting member. The sharpened edge faces towards the blade mounting member, which protects the vein from the sharpened edge. The sharpened edge arcs outwards and proximally from the distal portion of the blade mounting member, and terminates in a proximal portion, spaced from the blade mounting member. The blunt back edge is opposite the sharpened edge, facing the vein.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: December 17, 1996
    Assignee: Intramed Laboratories, Inc.
    Inventors: Thomas J. Fogarty, Thomas A. Howell, Jan R. Wicherski, Stephen A. Sosnowski
  • Patent number: 5527327
    Abstract: An improved valvulotome structure characterized by an elongate flexible shaft having proximal and distal ends and a cylindrical cutting member externally mounted around said shaft for axial movement, relative to said distal end, between a retracted and an extended position.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: June 18, 1996
    Assignee: Intramed Laboratories, Inc.
    Inventors: Jacob F. R. Louw, Henry Garza
  • Patent number: 5307803
    Abstract: An endoscope including a flexible shaft having a distal end which can be deflected by a manually operable mechanism on a handle assembly. The shaft includes an elongate member having longitudinal fins that extend radially outward. A hollow lumen through the core member forms a fluid channel, and the radially extending fins provide channels for accommodating optical fibers and pull wires. The member has a substantially continuous cross-section enabling it to be inexpensively extruded.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: May 3, 1994
    Assignee: Intramed Laboratories
    Inventors: David G. Matsuura, Curt Boyll
  • Patent number: 5250025
    Abstract: A percutaneous access catheter is employed for examining and treating internal body cavities and organs via an access tract. For example, the catheter can be employed for examining and treating the gallbladder via a transhepatic tract. The examination may employ endoscopic, fluoroscopic, ultrasonic, or other techniques; the treatment may employ surgical, chemical, or physical modalities. The catheter includes two inflation elements. These inflation elements control hemorrhaging and leakage of fluids from the internal body cavity or organ and reduce migration of the catheter within the internal body cavity or organ during the examination and/or treatment. The first inflation element is a toroidal elastic balloon located at the distal end of the device which serves to restrict the accidental or unintended removal of the distal end from the internal body cavity or organ.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: October 5, 1993
    Assignee: Intramed Laboratories
    Inventors: Stephen A. Sosnowski, John H. Parrish, Alan J. Schempp
  • Patent number: 5114399
    Abstract: A surgical device employs a catheter for removing obstructive material from the body cavity or lumenal passage. The catheter has a blade subassembly on its distal tip for coring, homogenizing, diluting, and aspirating the obstructive material. The obstructive material is homogenized and diluted after it is cored but prior to its aspiration into the catheter. Homogenization and dilution of cored obstructive material is shown to enhance the reliability of the surgical protocol by helping to prevent clogging of the catheter during aspiration.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: May 19, 1992
    Assignee: Intramed Laboratories
    Inventor: Steven W. Kovalcheck
  • Patent number: 4911148
    Abstract: An endoscope having a deflectable tip configured so as to have a small outer diameter of approximately 0.15 inch or less. The endoscope includes a flexible shaft subassembly comprised of a conduit having a deflectable end segment at its distal end which can be controlled by a manually operable mechanism on a handle subassembly. The shaft subassembly further includes a cone subassembly at its proximal end including means for structurally connecting to the handle subassembly. Illumination fibers, an imaging fiber, a pull wire and a working channel extend through the shaft subassembly from its distal end to terminals in the cone subassembly for interfacing to the handle subassembly.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: March 27, 1990
    Assignee: Intramed Laboratories, Inc.
    Inventors: Stephen A. Sosnowski, Nadhir B. Kosa, Steven W. Kovalcheck, John H. Parrish