Electrosurgical hemostatic device
First Claim
1. An electrosurgical device having an end effector capable of receiving bipolar energy therein, said end effector comprising:
- first and second opposing interfacing surfaces, said interfacing surfaces capable of engaging tissue therebetween;
electrically isolated first and second poles comprised of electrically opposite first and second electrodes respectively said electrodes capable of conducting bipolar energy therethrough;
said first and second electrodes located on said first surface and separated by an insulator;
said electrodes arranged so that bipolar energy may be communicated between said poles through the tissue engaged by said interfacing surfaces; and
wherein said insulator forms a compression ridge for compressing tissue between said interfacing surfaces.
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Accused Products
Abstract
An electrosurgical instrument is provided for cauterization and/or welding of tissue of varying impedances, thicknesses and vascularity especially in the performance of endoscopic procedures. The instrument compresses the tissue in the compression zone between first interfacing surface and second interfacing surfaces. The compression zone is formed by an insulator which forms a compression ridge in one of the interfacing surfaces and separates first and second electrically opposite electrodes. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed using RF along a cut line.
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Citations
17 Claims
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1. An electrosurgical device having an end effector capable of receiving bipolar energy therein, said end effector comprising:
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first and second opposing interfacing surfaces, said interfacing surfaces capable of engaging tissue therebetween; electrically isolated first and second poles comprised of electrically opposite first and second electrodes respectively said electrodes capable of conducting bipolar energy therethrough; said first and second electrodes located on said first surface and separated by an insulator; said electrodes arranged so that bipolar energy may be communicated between said poles through the tissue engaged by said interfacing surfaces; and wherein said insulator forms a compression ridge for compressing tissue between said interfacing surfaces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrosurgical device having an end effector capable of receiving bipolar energy therein, said end effector comprising:
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first and second opposing interfacing surfaces, said interfacing surfaces capable of engaging tissue therebetween; electrically isolate first and second poles comprised of respectively electrically opposite first and second electrodes capable of conducting bipolar energy therethrough; said first and second electrodes located on said first surface and separated by an insulator; said electrodes arranged so that bipolar energy may be communicated between said poles through the tissue engaged by said interfacing surfaces; and wherein said second interfacing surface comprises a compression ridge formed of an insulating material. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An electrosurgical device having an end effector capable of receiving bipolar energy therein, said end effector comprising:
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first and second opposing interfacing surfaces, said interfacing surfaces capable of engaging tissue therebetween; a longitudinal plane bisecting said first and second surfaces; first and second sides laterally opposite of each other with respect to the longitudinal plane; an insulator located between said first and second sides wherein said insulator forms a compression ridge in either the first or second interfacing surface; electrically isolated first and second poles comprised of electrically opposite first and second electrodes respectively, said electrodes capable of conducting bipolar energy therethrough; each of said first and second electrodes located on at least one of said first and second interfacing surfaces; and said first electrode located on said first side and the second electrode located on said second side. - View Dependent Claims (16, 17)
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Specification