Patents by Inventor Russell Wayne Lindemann

Russell Wayne Lindemann 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).

  • Patent number: 6402747
    Abstract: A replaceable accessory cord and handswitch set adapted for use with an electrosurgical instrument that has a proximal end handle for holding by the surgeon and distal end effectors for delivery of electrosurgery to a patient. A replaceable accessory cord is adapted to electrically couple an electrosurgical generator to the instrument with two or more conductors. A handswitch with normally open contacts is near the proximal end. One of the contacts attaches to an active conductor and another of the conductors connected to the other contact. A receptacle on the handswitch connects electrically to the contact. An insulated support on the handswitch engages the instrument preventing relative movement. A button on the support is accessible to the surgeon, but remote from the receptacle land the terminal. The button is electrically isolated from the contacts, the receptacle, the terminal and the conductors.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: June 11, 2002
    Assignee: Sherwood Services AG
    Inventors: Russell Wayne Lindemann, David Nichols Heard
  • Patent number: 6325795
    Abstract: A replaceable accessory cord and hand switch set for an electrosurgical instrument wherein the accessory cord electrically couples an electrosurgical generator to the electrosurgical instrument. The hand switch is electrically coupled with the accessory cord. A button on the hand switch activates the flow of electrosurgical current in the instrument. An insulated mechanical connector on the hand switch conforms and adheres to the electrosurgical instrument, mounting the hand switch thereon, and preventing longitudinal, lateral, and circumferential movement therebetween. The hand switch is positioned on the electrosurgical instrument for easy access and control by the surgeon's finger.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: December 4, 2001
    Assignee: Sherwood Services AG
    Inventors: Russell Wayne Lindemann, David Nichols Heard