Patent US2853209A successfully refreshed from Google Patents.
Patent US5766166A successfully refreshed from Google Patents.
US5766166A
Expired / Lapsed
US
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Bipolar Electrosurgical scissors
Assignee: Atricure Inc
•
Filing: 1996-02-21
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Granted: 1998-06-16
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Expires: 2016-02-21
Abstract
Abstract Bipolar electrosurgical scissors are disclosed having a pair of blades joined for relative movement in a scissor-like action between open and closed positions. At least one of the blades comprises a tissue contacting surface and first and second spaced apart electrodes extending along the surface. Current flow between the first and second electrodes promotes hemostasis in tissue contacting the surface. Preferably, each blade of the scissors includes first and second spaced-apart electrodes.
Inventors
- 👤 Michael D. Hooven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B18/18; A61B18/1815; A61B17/00; A61B2017/00831; A61B2017/0088; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2945; A61B2018/00053; A61B2018/00107; A61B2018/00136; A61B18/1206; A61B2018/1246; A61B2018/126; A61B2018/1405; A61B2018/1412; A61B2018/1425; A61B2018/1432; A61B2018/146; A61B2018/1861
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
74 words
A tissue cutting apparatus comprising: first and second blades joined for relative motion in a scissor-like action between an open and a closed position; each blade including a first electrode, a layer of insulative material deposited over said first electrode, and a second electrode deposited over said layer of insulative material, said first electrode, said layer of insulative material, and said second electrode being ground at a constant contact angle relative to said blade.
Claim 2
Dependent Claim
74 words
A tissue cutting apparatus comprising: first and second blades joined for relative motion in a scissor-like action between an open and a closed position; each blade including a first electrode, a layer of insulative material deposited over said first electrode, and a second electrode deposited over said layer of insulative material, said first electrode, said layer of insulative material, and said second electrode being ground at a constant contact angle relative to said blade.
Claim 3
Dependent Claim
91 words
A tissue cutting apparatus comprising: first and second blades joined for relative motion in a scissor-like action between an open an a closed position; each said first and second blade having a cutting edge a shearing face, and a tissue contacting surface, said cutting edge and at least a portion of said tissue contacting surface of each said first and second blade being substantially coplanar and forming an obtuse angle with respect to said shearing face, so that each said tissue contacting surface is elevated with respect to its cutting edge.
Claim 4
Dependent Claim
91 words
A tissue cutting apparatus comprising: first and second blades joined for relative motion in a scissor-like action between an open an a closed position; each said first and second blade having a cutting edge a shearing face, and a tissue contacting surface, said cutting edge and at least a portion of said tissue contacting surface of each said first and second blade being substantially coplanar and forming an obtuse angle with respect to said shearing face, so that each said tissue contacting surface is elevated with respect to its cutting edge.
Claim 5
Dependent Claim
18 words
The tissue cutting apparatus of claim 2 wherein the tissue contacting surface of each blade comprises an electrode.
Claim 6
Independent Claim
82 words
A method of manufacturing a tissue cutting apparatus comprising at least one blade having a tissue contacting surface, said contacting surface including first and second spaced apart electrodes extending along said contacting surface, said method comprising the steps of: providing said first electrode; depositing a layer of insulative material over said first electrode; depositing said second electrode over said insulative material; and grinding said contacting surface across said first electrode, said insulative material, and said second electrode at a constant grind angle.
Claim 7
Independent Claim
82 words
A method of manufacturing a tissue cutting apparatus comprising at least one blade having a tissue contacting surface, said contacting surface including first and second spaced apart electrodes extending along said contacting surface, said method comprising the steps of: providing said first electrode; depositing a layer of insulative material over said first electrode; depositing said second electrode over said insulative material; and grinding said contacting surface across said first electrode, said insulative material, and said second electrode at a constant grind angle.
Claim 8
Dependent Claim
17 words
The method of manufacturing according to claim 4, wherein said grind angle is less than ninety degrees.
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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) | 2001-06-15 | 2001-12-15 | 2002-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-15 | 2005-12-15 | 2006-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-15 | 2009-12-15 | 2010-06-16 | $7700.00 | Window Closed / Lapsed |