Patents Assigned to Tahoe Surgical Instruments
  • Patent number: 5741278
    Abstract: A surgical tool for endoscopic suture placement which permits a surgeon to place controlled and precise internal ligatures. The tool utilizes a drive rod including an articulating or deflecting portion. When forced to an extended position, the deflecting or articulating portion forms a hook or J-shaped needle, the tip of which can be used to accurately position the suture.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: April 21, 1998
    Assignee: Tahoe Surgical Instruments
    Inventor: Jon A. Stevens
  • Patent number: 5722981
    Abstract: A double needle ligature device for efficiently creating a loop suture for closing wounds, such as trocar wounds. The device preferably includes a double needle assembly to ensure that the suture is positively held in place during needle retraction.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: March 3, 1998
    Assignee: Tahoe Surgical Instruments
    Inventor: Jon A. Stevens
  • Patent number: 5573542
    Abstract: A surgical tool for endoscopic suture placement which permits a surgeon to place controlled and precise internal ligatures. The tool utilizes a drive rod including an articulating or deflecting portion. When forced to an extended position, the deflecting or articulating portion forms a hook or J-shaped needle, the tip of which can be used to accurately position the suture.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: November 12, 1996
    Assignee: Tahoe Surgical Instruments-Puerto Rico
    Inventor: Jon A. Stevens
  • Patent number: 5462560
    Abstract: A double needle ligature device for efficiently creating a loop suture for closing wounds, such as trocar wounds. The device preferrably includes a double rod-in-needle assembly to ensure that the suture is positively held in place during needle retraction.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: October 31, 1995
    Assignee: Tahoe Surgical Instruments
    Inventor: Jon A. Stevens
  • Patent number: 5247966
    Abstract: A device for irrigation and suction removal of blood, bodily fluids and debris from a body cavity primarily during laparoscopic procedures and surgery. The device contains a single piston slidably disposed in a passage contained in a housing having two inlets and a single outlet. The piston includes a central seal with two valve portions positioned on each side of the central seal. Piston positioning means are provided to move the piston to align the valve portions within the housing with the outlet and one of the inlets, while the other inlet is simultaneously sealed off. Thus, the piston may be moved from a neutral or shut-off position to an open irrigation position, or, alternately, moved from the neutral or shut-off position to an open vacuum position. The valve may also contain automatic biasing means for returning the valve from either the open-irrigation position or the open-vacuum position to the central shut-off position.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: September 28, 1993
    Assignee: Tahoe Surgical Instruments, Inc.
    Inventors: Jon A. Stevens, Roger R. Hill