Patent US5700261A successfully refreshed from Google Patents.
US5700261A
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Bipolar Scissors
Assignee: Ethicon Endo Surgery Inc
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Filing: 1996-03-29
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Granted: 1997-12-23
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Expires: 2016-03-29
Abstract
Abstract A bipolar electrosurgical scissors adapted to electrically cauterize and desiccate organic tissue prior to cutting the tissue in order to reduce or prevent bleeding. The bipolar electrosurgical scissors include a pair of scissor members attached through an electrically insulating point. Each scissor member includes, at a distal end, a shearing surface with a plurality of electrode regions interspersed between a plurality of insulating regions. The insulator regions are offset such that upon closure of the shearing members, the insulation region of one shearing member opposes a corresponding electrode on the other shearing member.
Inventors
- 👤 Ronald J. Brinkerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:11
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00077; A61B2018/00083; A61B2018/00107; A61B2018/00119; A61B2018/00148; A61B18/1206; A61B2018/1246; A61B2018/126
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
122 words
An electrosurgical instrument comprising: a first scissor member including a first shearing member, a first shelf on said first shearing member, a first cutting edge on said first shelf, wherein at least a portion of said first shelf surface includes a plurality of first electrically insulated regions and a plurality of first electrode regions; a second scissor member pivotally coupled to said first scissor member and including a second shearing member, a second shelf on said second shearing member, a second cutting edge on said second shelf, wherein at least a portion of said second shelf includes a plurality of second electrically insulated regions and a plurality of second electrode regions, said second insulated regions being arranged opposite said second electrode regions.
Claim 2
Dependent Claim
122 words
An electrosurgical instrument comprising: a first scissor member including a first shearing member, a first shelf on said first shearing member, a first cutting edge on said first shelf, wherein at least a portion of said first shelf surface includes a plurality of first electrically insulated regions and a plurality of first electrode regions; a second scissor member pivotally coupled to said first scissor member and including a second shearing member, a second shelf on said second shearing member, a second cutting edge on said second shelf, wherein at least a portion of said second shelf includes a plurality of second electrically insulated regions and a plurality of second electrode regions, said second insulated regions being arranged opposite said second electrode regions.
Claim 3
Dependent Claim
41 words
An electrosurgical instrument according to claim 1 wherein said first and second cutting edges overlap when said instrument is closed to form a region of overlap and said first and second insulated regions form substantially all of said region of overlap.
Claim 4
Dependent Claim
37 words
An electrosurgical instrument according to claim 1 wherein said first insulation regions form at least a portion of said first cutting edge and said second insulation regions form at least a portion of said second cutting edge.
Claim 5
Dependent Claim
37 words
An electrosurgical instrument according to claim 1 wherein said first cutting edge comprises said first insulation regions and said first electrode regions and said second cutting edge comprises said second insulation regions and said second electrode regions.
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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) | 2000-12-22 | 2001-06-23 | 2001-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-22 | 2005-06-23 | 2005-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-22 | 2009-06-23 | 2009-12-23 | $7700.00 | Window Closed / Lapsed |