Electrosurgical clamping device with improved coagulation feedback
First Claim
Patent Images
1. An electrosurgical instrument including an end effector operatively connected to said instrument, wherein said end effector comprises:
- first and second tissue grasping surfaces, a portion of said first and said second tissue grasping surfaces overlapping when said end effector is closed, wherein at least one of said first and second tissue grasping surfaces comprise;
a first electrically conductive electrode; and
at least one or more electrically conductive wing electrodes wherein said wing electrode forms a portion of and extends laterally from said overlapping portion.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrosurgical hemostatic instrument is provided in which the coagulation status of tissue engaged by two elements delivering electrosurgical energy to tissue may be observed. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. The end effector of the device includes interleaved winged electrodes which act to support the tissue and to provide visual access to the tissue as it is being treated. The winged electrodes are interspersed along the outside of the end effector.
2010 Citations
12 Claims
-
1. An electrosurgical instrument including an end effector operatively connected to said instrument, wherein said end effector comprises:
first and second tissue grasping surfaces, a portion of said first and said second tissue grasping surfaces overlapping when said end effector is closed, wherein at least one of said first and second tissue grasping surfaces comprise; a first electrically conductive electrode; and at least one or more electrically conductive wing electrodes wherein said wing electrode forms a portion of and extends laterally from said overlapping portion.
-
2. An electrosurgical instrument including an end effector operatively connected to said instrument, wherein said end effector comprises:
-
a first tissue grasping surface; a second tissue grasping surface wherein a portion of said first grasping surface overlaps a portion of said second grasping surface when said end effector is closed; a first electrode on said first tissue grasping surface; and at least one electrically conductive wing electrode attached to said first tissue grasping surface and insulated from said first electrode wherein said wing electrode forms a portion of and extends laterally from said overlapping portion of said first tissue grasping surface. - View Dependent Claims (3, 4)
-
-
5. An electrosurgical instrument including an end effector operatively connected to said instrument, wherein said end effector comprises:
-
first and second tissue grasping elements; a first tissue grasping surface on said first element; a second tissue grasping surface on said second element wherein a portion of said first grasping surface overlaps a portion of said second grasping surface when said end effector is closed; at least one electrode on one of said tissue grasping surfaces; at least one wing electrode attached to at least one of said grasping elements wherein said wing electrode forms a portion of and extends laterally from said grasping surface of said at least one grasping element. - View Dependent Claims (6, 7, 8)
-
-
9. An electrosurgical instrument comprising:
-
a shaft having a distal end and a longitudinal axis; an end effector operatively connected to said instrument, located at the distal end of the shaft, adapted to receive bipolar energy therein, said end effector comprising; a distal end; and first and second elements comprising first and second opposed tissue contacting surfaces respectively, said surfaces moveable relative to each other from an open, spaced-apart position for positioning tissue therebetween, to a closed position for grasping the tissue, at least a portion of one of said tissue contacting surfaces comprising a first electrode, and at least a portion of one of said tissue contacting surfaces comprising an electrically isolated second electrode, said first and second elements further comprising first and second outer surfaces, respectively, said first and second outer surfaces adjacent said first and second tissue contacting surfaces, respectively, at least one of said first and second electrodes being contained substantially between said first and second outer surfaces; wherein at least one of said first and second outer surfaces include at least one winged electrode wherein said winged electrode forms a portion of and extends laterally from said at least one outer surface.
-
-
10. An electrosurgical instrument including an end effector operatively connected to said instrument, wherein said end effector comprises:
-
a first tissue grasping surface; a second tissue grasping surface wherein a portion of said first grasping surface overlaps a portion of said second grasping surface when said end effector is closed; a first electrode on said first tissue grasping surface; and at least one electrically conductive wing electrode attached, forming a portion of, and extending laterally from said overlapping portion of said first tissue grasping surface and insulated from said first electrode, wherein said wing electrode has an atraumatic shape. - View Dependent Claims (11, 12)
-
Specification