US5709680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrosurgical hemostatic device
Assignee: Ethicon Endo Surgery Inc
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Filing: 1994-12-22
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Granted: 1998-01-20
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Expires: 2014-12-22
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
- 👤 Warren P. Williamson, IV
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
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: 20
Claim 1
Independent Claim
105 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 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.
Claim 2
Dependent Claim
105 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 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.
Claim 3
Dependent Claim
26 words
The electrosurgical device of claim 1 wherein said first and second electrodes are arranged to provide a current path through tissue compressed by said compression ridge.
Claim 4
Dependent Claim
19 words
The electrosurgical device of claim 1 wherein said second interfacing surface comprises a compression ridge formed of an insulator.
Claim 5
Dependent Claim
35 words
The electrosurgical device of claim 1 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
30 words
The electrosurgical device of claim 4 wherein said insulator includes a slot arranged to receive said cutting element and to permit said cutting element to move through said cutting line.
Claim 7
Dependent Claim
38 words
The electrosurgical device of claim 4 wherein said end effector comprises at least one tissue fastener and an applier located with said end effector, said applier adapted to apply the fastener to tissue engaged by the end effector.
Claim 8
Dependent Claim
33 words
The electrosurgical device of claim 4 wherein said end effector comprises at least one staple and at least one driver adapted to apply said at least one staple lateral to said cutting line.
Claim 9
Dependent Claim
38 words
The electrosurgical device of claim 1 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 10
Dependent Claim
103 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 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.
Claim 11
Dependent Claim
103 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 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.
Claim 12
Dependent Claim
35 words
The electrosurgical device of claim 9 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 13
Dependent Claim
30 words
The electrosurgical device of claim 10 wherein said insulator includes a slot arranged to receive said cutting element and to permit said cutting element to move through said cutting line.
Claim 14
Dependent Claim
33 words
The electrosurgical device of claim 10, wherein said end effector comprises at least one fastener and at least one applier adapted to apply said at least one fastener lateral to said cutting line.
Claim 15
Dependent Claim
33 words
The electrosurgical device of claim 10 wherein said end effector comprises at least one staple and at least one driver adapted to apply said at least one staple lateral to said cutting line.
Claim 16
Dependent Claim
38 words
The electrosurgical device of claim 9 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 17
Dependent Claim
139 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 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.
Claim 18
Dependent Claim
139 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 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.
Claim 19
Dependent Claim
29 words
The electrosurgical device of claim 15 wherein said first electrode is located on said first interfacing surface and wherein said second electrode is located on said second interfacing surface.
Claim 20
Dependent Claim
33 words
The electrosurgical device of claim 15 wherein a said insulator forms a compression ridge in said first interfacing surface and wherein a said insulator forms a compression ridge in said second interfacing surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-01-19 | 2001-07-21 | 2002-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-19 | 2005-07-21 | 2006-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-19 | 2009-07-21 | 2010-01-20 | $7700.00 | Window Closed / Lapsed |