EP0717960A2
Expired / Lapsed
EP
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Electrosurgical hemostatic device
Assignee: Ethicon Endo Surgery Inc
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Filing: 1995-12-21
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Granted: —
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Expires: 2015-12-21
Abstract
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.
Inventors
- 👤 David C. Yates
- 👤 Jesse J. Kuhns
- 👤 Iv Warren P. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 08:25
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/068; A61B17/072; A61B17/07207; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B18/14; A61B18/1442; A61B18/1445; A61B18/1447; A61B17/32; A61B18/1402; A61B17/00491; A61B2017/00504; A61B2017/07214; A61B2017/07228; A61B2018/00315; A61B2018/00345; A61B2018/00404; A61B2018/00571; A61B2018/00601; A61B2018/00636; A61B2018/00642; A61B2018/00666; A61B2018/00672; A61B2018/00678; A61B2018/00684; A61B2018/00696; A61B2018/00702; A61B2018/00708; A61B2018/00773; A61B2018/00875; A61B2018/1273; A61B90/00; A61B90/03; A61B2090/032
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
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 surfacing surfaces being capable of engaging tissue therebetween; electrically isolated first and second poles comprised of electrically opposite first and second electrodes respectively, said electrodes being capable of conducting bipolar energy therethrough; said first and second electrodes being located on said first surface and separated by an insulator; said electrodes being 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.
Claim 2
Dependent Claim
106 words
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 being capable of engaging tissue therebetween; electrically isolated first and second poles comprised of respectively electrically opposite first and second electrodes capable of conducting bipolar energy therethrough, said first and second electrodes being located on said first surface and separated by an insulator; said electrodes being 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.
Claim 3
Dependent Claim
29 words
The electrosurgical device of claim 1 or claim 2, wherein said first and second electrodes are arranged to provide a current path through tissue compressed by said compression ridge.
Claim 4
Dependent Claim
24 words
The electrosurgical device of any one of claims 1 to 3, wherein said second interfacing surface comprises a compression ridge formed of an insulator.
Claim 5
Dependent Claim
40 words
The electrosurgical device of any one of claims 1 to 4 wherein said device includes a cutting element arranged on said device to divide tissue engaged by said end effector, through a cutting line, when said cutting element is actuated.
Claim 6
Dependent Claim
43 words
The electrosurgical device of any one of claims 1 to 5 wherein said end effector further comprises: at least one tissue fastener and at least one applier adapted to apply said at least one tissue fastener to tissue engaged by said end effector.
Claim 7
Dependent Claim
130 words
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 being capable of engaging tissue therebetween; a longitudinal plane bisecting said first and second surfaces; first and second sides being laterally opposite of each other with respect to the longitudinal plane; an insulator located between said first and second sides; electrically isolated first and second poles comprised of electrically opposite first and second electrodes respectively, said electrodes being capable of conducting bipolar energy therethrough; each of said first and second electrodes being located on at least one of said first and second interfacing surfaces; and said first electrode being located on said first side and the second electrode being located on said second side.
Claim 8
Dependent Claim
21 words
The electrosurgical device of claim 7 wherein said insulator forms a compression ridge in either the first or second interfacing surface.
Claim 9
Dependent Claim
32 words
The electrosurgical device of claim 7 or claim 8 wherein said first electrode is located on said first interfacing surface and wherein said second electrode is located on said second interfacing surface.
Claim 10
Dependent Claim
19 words
The electrosurgical device of claim 7 wherein a said insulator forms a compression ridge in said second interfacing surface.
References Cited (Backward Citations)
No citation records indexed.
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