Patent US4632109A successfully refreshed from Google Patents.
US4632109A
Expired / Lapsed
US
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Circuitry for processing requests made from the sterile field of a surgical procedure to change the output power level of an electrosurgical generator
Assignee: Covidien AG
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Filing: 1984-12-11
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Granted: 1986-12-30
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Expires: 2004-12-11
Abstract
Abstract An electrosurgical generating system including an electrosurgical generator; a handpiece including an active electrode connected to the generator for applying electrosurgical current from the generator to a patient; and an initializing device or circuit for making an initial determination as to whether the handpiece includes power changing switches for changing the level of the output power delivered from the generator to the patient. Assuming the handpiece does include such switches, circuitry is also disclosed for limiting the amount the power can be increased or decreased from the handpiece. Also circuitry is disclosed for effecting the power increase or decrease in incremental steps.
Inventors
- 👤 William G. Paterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:01
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B2018/00636; A61B2018/0066; A61B2018/0091; A61B2018/00916; A61B2018/00928; A61B2018/00934; A61B2018/00958
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
An electrosurgical generating system comprising: an electrosurgical generator; a handpiece including (a) an active electrode connected to said generator for applying electrosurgical current from the generator to a patient and (b) power changing means for changing the level of output power delivered from the generator to the patient; and initializing means responsive to said power changing means for making an initial determination that said handpiece includes said power changing means and thus permit said power changing means to change said output power level only if said handpiece includes said power changing means.
Claim 2
Dependent Claim
92 words
An electrosurgical generating system comprising: an electrosurgical generator; a handpiece including (a) an active electrode connected to said generator for applying electrosurgical current from the generator to a patient and (b) power changing means for changing the level of output power delivered from the generator to the patient; and initializing means responsive to said power changing means for making an initial determination that said handpiece includes said power changing means and thus permit said power changing means to change said output power level only if said handpiece includes said power changing means.
Claim 3
Dependent Claim
51 words
A system as in claim 1 where said means for changing the output power level of the generator includes a pair of switches, one power increment switch for effecting an increase in the output power level of the generator and the other a power decrement switch for effecting a decrease thereof.
Claim 4
Dependent Claim
15 words
A system as in claim 2 where said initializing means includes one of said switches.
Claim 5
Dependent Claim
15 words
A system as in claim 3 where said initializing means includes said power increment switch.
Claim 6
Dependent Claim
24 words
A system as in claim 1 including means for preventing changes in the output power once the power has been changed a predetermined amount.
Claim 7
Dependent Claim
24 words
A system as in claim 1 including means for changing the output power level of the generator by a plurality of successive, incremental amounts.
Claim 8
Dependent Claim
72 words
A system as in claim 6 including further power changing means for changing the output power level of the generator, said further means being disposed at the generator and where said means for changing said output level by a plurality of incremental amounts includes means for incrementing the current output power level by a predetermined percentage of the power level last set by the further power changing means at the electrosurgical generator.
Claim 9
Dependent Claim
30 words
A system as in claim 7 where said means for incrementing the current output power level by a predetermined percentage includes means for establishing said predetermined percentage as ten percent.
Claim 10
Dependent Claim
200 words
An electrosurgical generating system comprising: an electrosurgical generator; a handpiece including an active electrode connected to said electrosurgical generator for applying electrosurgical current from the generator to a patient, said handpiece having means disposed thereat for changing the level of the output power delivered from said generator to said patient; initializing means responsive to said power changing means for making an initial determination that said handpiece includes said power changing means and thus permit said power changing means to change said output power level only if said handpiece includes said power changing means; means for changing the output power level of the generator by a plurality of successive, incremental amounts; means for preventing changes in the output power level once the power has been changed a predetermined amount by said power changing means; and further power changing means for changing the output power level of the generator, said further means being disposed at the generator and where said means for changing said output power level by a plurality of incremental amounts includes means for incrementing the current output power level by a predetermined percentage of the power level last set by the further power changing means at the electrosurgical generator.
Claim 11
Dependent Claim
200 words
An electrosurgical generating system comprising: an electrosurgical generator; a handpiece including an active electrode connected to said electrosurgical generator for applying electrosurgical current from the generator to a patient, said handpiece having means disposed thereat for changing the level of the output power delivered from said generator to said patient; initializing means responsive to said power changing means for making an initial determination that said handpiece includes said power changing means and thus permit said power changing means to change said output power level only if said handpiece includes said power changing means; means for changing the output power level of the generator by a plurality of successive, incremental amounts; means for preventing changes in the output power level once the power has been changed a predetermined amount by said power changing means; and further power changing means for changing the output power level of the generator, said further means being disposed at the generator and where said means for changing said output power level by a plurality of incremental amounts includes means for incrementing the current output power level by a predetermined percentage of the power level last set by the further power changing means at the electrosurgical generator.
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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) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |