Patent US4683879A successfully refreshed from Google Patents.
US5693045A
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US
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Electrosurgical generator cable
Assignee: Hemostatic Surgery Corp
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Filing: 1995-06-07
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Granted: 1997-12-02
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Expires: 2015-06-07
Abstract
Abstract An adaptor cable and methods are provided for use with electrosurgical bipolar instruments and standard commercially available electrosurgical generators that reduce arcing. The adaptor cable limits the peak-to-peak voltage developed between the electrodes of the electrosurgical instrument by providing a minimum load impedance between the output terminals of the electrosurgical generator.
Inventors
- 👤 Philip E. Eggers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:45
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B2018/00053; A61B2018/00172; A61B2018/00178
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
An adaptor cable for coupling a bipolar electrosurgical instrument having a pair of electrodes to an electrosurgical generator having bipolar output terminals, the adaptor cable comprising: first and second conductors adapted for coupling the electrodes of the electrosurgical instrument to the bipolar output terminals of the electrosurgical generator; and at least one resistive wire coupled between the first and second conductors, wherein the at least one resistive wire limits the peak voltages developed between the bipolar output terminals.
Claim 2
Dependent Claim
78 words
An adaptor cable for coupling a bipolar electrosurgical instrument having a pair of electrodes to an electrosurgical generator having bipolar output terminals, the adaptor cable comprising: first and second conductors adapted for coupling the electrodes of the electrosurgical instrument to the bipolar output terminals of the electrosurgical generator; and at least one resistive wire coupled between the first and second conductors, wherein the at least one resistive wire limits the peak voltages developed between the bipolar output terminals.
Claim 3
Dependent Claim
28 words
The adaptor cable of claim 1 wherein the adaptor cable has a length and the at least one resistive wire comprises a loop that extends for the length.
Claim 4
Dependent Claim
24 words
The adaptor cable of claim 2 wherein the loop comprises first and second resistive wires coupled in series between the first and second conductors.
Claim 5
Dependent Claim
30 words
The adaptor cable of claim 1 wherein the at least one resistive wire comprises first and second resistive wires coupled in parallel with respect to the first and second conductors.
Claim 6
Dependent Claim
91 words
An adaptor cable for coupling a bipolar electrosurgical instrument having a pair of electrodes to an electrosurgical generator having bipolar output terminals, the adaptor cable having a length and comprising: first and second conductors adapted for coupling the electrodes of the bipolar electrosurgical instrument to the bipolar output terminals; at least one resistive wire coupled between the first and second conductors, wherein the at least one resistive wire is distributed along a portion of the length of the adaptor cable and limits the peak voltages developed between the bipolar output terminals.
Claim 7
Dependent Claim
91 words
An adaptor cable for coupling a bipolar electrosurgical instrument having a pair of electrodes to an electrosurgical generator having bipolar output terminals, the adaptor cable having a length and comprising: first and second conductors adapted for coupling the electrodes of the bipolar electrosurgical instrument to the bipolar output terminals; at least one resistive wire coupled between the first and second conductors, wherein the at least one resistive wire is distributed along a portion of the length of the adaptor cable and limits the peak voltages developed between the bipolar output terminals.
Claim 8
Dependent Claim
21 words
The adaptor cable of claim 5 wherein the at least one resistive wire comprises a loop of 316 stainless steel wire.
Claim 9
Dependent Claim
21 words
The adaptor cable of claim 6 wherein the 316 stainless steel wire is between about 36 gauge and about 38 gauge.
Claim 10
Dependent Claim
24 words
The adaptor cable of claim 7 wherein the at least one resistive wire comprises a respective wire running the length of the adaptor cable.
Claim 11
Independent Claim
79 words
A method of limiting peak voltages between electrodes of a bipolar electrosurgical instrument coupled to output terminals of a standard electrosurgical generator, the method comprising the steps of: providing first and second conductors adapted for coupling the electrodes to the output terminals; providing at least one resistive wire coupled between the first and second conductors; and coupling the first and second conductors between the electrodes and the output terminals to limit peak voltages developed between the bipolar output terminals.
Claim 12
Independent Claim
79 words
A method of limiting peak voltages between electrodes of a bipolar electrosurgical instrument coupled to output terminals of a standard electrosurgical generator, the method comprising the steps of: providing first and second conductors adapted for coupling the electrodes to the output terminals; providing at least one resistive wire coupled between the first and second conductors; and coupling the first and second conductors between the electrodes and the output terminals to limit peak voltages developed between the bipolar output terminals.
Claim 13
Dependent Claim
20 words
The method of claim 9 wherein the at least one resistive wire comprises a loop of 316 stainless steel wire.
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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) | 2000-12-01 | 2001-06-02 | 2001-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-01 | 2005-06-02 | 2005-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-01 | 2009-06-02 | 2009-12-02 | $7700.00 | Window Closed / Lapsed |