Patent US6206876B1 successfully refreshed from Google Patents.
US6206876B1
Expired / Lapsed
US
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Electrosurgery with cooled electrodes
Assignee: Ethicon Endo Surgery Inc
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Filing: 2000-03-01
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Granted: 2001-03-27
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Expires: 2020-03-01
Abstract
Abstract A cooled electrosurgical system includes an electrosurgical device having at least one electrode for applying electrical energy to tissue. In one embodiment, the electrode includes an internal cavity in which a cooling medium such as water is contained. The internal cavity is closed at the distal end of the device such that the cooling medium is contained within the electrode at the surgical site such that the cooling medium does not contact the tissue being treated.
Inventors
- 👤 Andy H. Levine
- 👤 John C. Meade
- 👤 Philip R. Lichtman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:22
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B18/1402; A61B17/00; A61B17/32; A61B2018/00005; A61B2018/00011; A61B2018/00023; A61B18/1206; A61B2018/1246; A61B2018/1253; A61B2018/126
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
52 words
An electromedical device comprising: an electrode for applying electrical energy to tissue at a distal end of the electrode to heat the tissue; a heat exchanger at a proximal end of the electrode for removing heat from the electrode; a heat pipe for conducting heat from the electrode to the heat exchanger.
Claim 2
Dependent Claim
52 words
An electromedical device comprising: an electrode for applying electrical energy to tissue at a distal end of the electrode to heat the tissue; a heat exchanger at a proximal end of the electrode for removing heat from the electrode; a heat pipe for conducting heat from the electrode to the heat exchanger.
Claim 3
Dependent Claim
20 words
The electromedical device of claim 1 , wherein the heat pipe includes a sealed cavity containing a heat transfer fluid.
Claim 4
Dependent Claim
19 words
The electromedical device of claim 1 , wherein the heat exchanger includes a plurality of radial heat conductive fins.
Claim 5
Dependent Claim
23 words
The electromedical device of claim 1 , wherein the heat pipe includes an interior sealed cavity having a side wall with multiple grooves.
Claim 6
Dependent Claim
20 words
The electromedical device of claim 1 , wherein an electrode-tissue interface temperature is maintained at less than about 80° C.
Claim 7
Independent Claim
29 words
A method of treatment comprising: applying electrical energy to tissue with an electrode to heat the tissue; and cooling the electrode with a heat pipe contained within the electrode.
Claim 8
Independent Claim
29 words
A method of treatment comprising: applying electrical energy to tissue with an electrode to heat the tissue; and cooling the electrode with a heat pipe contained within the electrode.
Claim 9
Dependent Claim
19 words
The method of claim 6 , further comprising maintaining an electrode-tissue interface temperature of less than about 80° C.
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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) | 2004-03-26 | 2004-09-25 | 2005-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-03-26 | 2008-09-25 | 2009-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-03-26 | 2012-09-25 | 2013-03-27 | $7700.00 | Window Closed / Lapsed |