×

System and method for tissue sealing

  • US 20070173813A1
  • Filed: 01/24/2006
  • Published: 07/26/2007
  • Est. Priority Date: 01/24/2006
  • Status: Abandoned Application
First Claim
Patent Images

1. An electrosurgical bipolar forceps for sealing tissue, comprising:

  • at least one shaft member having an end effector assembly disposed at a distal end thereof, the end effector assembly including two jaw members movable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp tissue therebetween at constant pressure;

    each of the jaw members including an electrically conductive sealing plate adapted to connect to a first energy source which communicates electrosurgical energy through tissue held therebetween, wherein the electrosurgical energy is communicated at constant voltage; and

    sensor circuitry operably connected to the electrically conductive sealing plates, the sensor circuitry configured to measure initial tissue impedance and transmit an initial impedance value to a controller, the controller configured to determine the constant pressure and the constant voltage to be applied to the tissue based on the initial impedance value.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×