US5716366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hemostatic surgical cutting or stapling instrument
Assignee: Ethicon Endo Surgery Inc
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Filing: 1996-08-22
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Granted: 1998-02-10
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Expires: 2016-08-22
Abstract
Abstract A hemostatic surgical instrument is provided for coagulation, cauterization and/or welding of tissue especially in the performance of endoscopic procedures. The instrument compresses the tissue between interfacing surfaces of first and second elements. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed along a cut line using therapeutic heat energy. Surgical fasteners, for example, staples may be also included in the instrument.
Inventors
- 👤 David C. Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:43
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/068; A61B17/072; A61B17/07207; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1445; A61B18/1447; A61B17/00491; A61B2017/00504; A61B18/1206; A61B2018/1246; A61B2018/126; Y; Y10; Y10S; Y10S227/00; Y10S227/901
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A surgical instrument comprising: a shaft having a distal end; an end effector located at the distal end of the shaft, comprising: a distal end; a cutting element movable in a cutting path to form a cutting line; first and second elements comprising first and second opposed tissue contacting surfaces respectively, said surfaces moveable relative to each other from an open, spaced-apart position for positioning tissue therebetween, to a closed position for approximating the tissue, at least a portion of one of said tissue contacting surfaces comprising a heating element wherein said heating element is adapted to transmit energy to tissue engaged by said end effector, said heating element comprising: a first elongated bar of a positive temperature coefficient material arranged on a first side of said cutting line; and a second elongated bar of a positive temperature coefficient material arranged on a second side of said cutting line.
Claim 2
Dependent Claim
149 words
A surgical instrument comprising: a shaft having a distal end; an end effector located at the distal end of the shaft, comprising: a distal end; a cutting element movable in a cutting path to form a cutting line; first and second elements comprising first and second opposed tissue contacting surfaces respectively, said surfaces moveable relative to each other from an open, spaced-apart position for positioning tissue therebetween, to a closed position for approximating the tissue, at least a portion of one of said tissue contacting surfaces comprising a heating element wherein said heating element is adapted to transmit energy to tissue engaged by said end effector, said heating element comprising: a first elongated bar of a positive temperature coefficient material arranged on a first side of said cutting line; and a second elongated bar of a positive temperature coefficient material arranged on a second side of said cutting line.
Claim 3
Dependent Claim
39 words
The surgical device of claim 1 further comprising a longitudinal axis extending proximally to distally with respect to said end effector wherein said first and second elongated bars comprise an elongated element extending longitudinally with respect to said axis.
Claim 4
Dependent Claim
25 words
The surgical instrument of claim 1, wherein said first and second elongated bars are arranged in a substantially parallel manner with respect to each other.
Claim 5
Dependent Claim
31 words
The surgical device of claim 1 wherein said end effector further comprises: at least one fastener and at least one applier adapted to apply said at least one fastener through tissue.
Claim 6
Dependent Claim
31 words
The surgical device of claim 1 wherein said end effector further comprises: at least one staple and at least one driver adapted to drive said at least one staple through tissue.
Claim 7
Dependent Claim
21 words
The surgical instrument of claim 1 wherein said first and said second elongated bars are covered by a heat conducting material.
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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) | 2001-02-09 | 2001-08-11 | 2002-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-09 | 2005-08-11 | 2006-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-09 | 2009-08-11 | 2010-02-10 | $7700.00 | Window Closed / Lapsed |