US3929137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic warning for electrosurgical device
Assignee: Dentsply Research and Development Corp
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Filing: 1974-12-05
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Granted: 1975-12-30
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Expires: 1994-12-05
Abstract
Abstract An electrosurgical device in which high frequency electrical energy powers a cutting electrode. Radio frequency energy is set up in a driver coil and a driven coil mounted in a handpiece. The driver coil energizes the driven coil to energize a surgical electrode connected to one end of the driven coil. Sonic warning signals indicate production of cutting, coagulating, and blended currents.
Inventors
- 👤 Donald I Gonser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:44
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B18/14; A61B18/1402; A61B2018/00053; A61B2018/00172; A61B2018/00178; A61B2018/00636; A61B2018/0066
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In an electrosurgical device, means for generating an electrosurgical cutting current, a sonic warning device connected to the means for generating the electrosurgical cutting current including means to produce a sound signal of a selected frequency when the electrosurgical cutting current is generated, means for generating an electrosurgical coagulating current, a second sonic warning device connected to the means for generating the coagulating current including means to produce a sound of a second and different selected frequency when the coagulating current is generated, means for generating an electrosurgical current, the last mentioned means including both the means for generating the electrosurgical cutting current and the means for generating the electrosurgical coagulating current, both sonic warning devices being actuated when the blended current is generated, and means for supplying each of said currents to a patient.
Claim 2
Dependent Claim
135 words
In an electrosurgical device, means for generating an electrosurgical cutting current, a sonic warning device connected to the means for generating the electrosurgical cutting current including means to produce a sound signal of a selected frequency when the electrosurgical cutting current is generated, means for generating an electrosurgical coagulating current, a second sonic warning device connected to the means for generating the coagulating current including means to produce a sound of a second and different selected frequency when the coagulating current is generated, means for generating an electrosurgical current, the last mentioned means including both the means for generating the electrosurgical cutting current and the means for generating the electrosurgical coagulating current, both sonic warning devices being actuated when the blended current is generated, and means for supplying each of said currents to a patient.
Claim 3
Dependent Claim
144 words
The combination of an electrosurgical device including means for generating an electrosurgical cutting current, means for generating an electrosurgical coagulating current, means for generating a blended electrosurgical current, and means for supplying each of said currents to a patient with a sonic warning device comprising a first sonic warning device connected to the means for generating the electrosurgical cutting current including means to produce a sound signal of a selected frequency when the electrosurgical cutting current is generated, a second sonic warning device connected to the means for generating the electrosurgical coagulating current including means to produce a sonic signal of another and different selected frequency when the electrosurgical coagulating current is generated, and means connecting both sonic signal warning devices to the means for generating a blended electrosurgical current so that both sonic warning devices are actuated when the blended current is generated.
Claim 4
Dependent Claim
144 words
The combination of an electrosurgical device including means for generating an electrosurgical cutting current, means for generating an electrosurgical coagulating current, means for generating a blended electrosurgical current, and means for supplying each of said currents to a patient with a sonic warning device comprising a first sonic warning device connected to the means for generating the electrosurgical cutting current including means to produce a sound signal of a selected frequency when the electrosurgical cutting current is generated, a second sonic warning device connected to the means for generating the electrosurgical coagulating current including means to produce a sonic signal of another and different selected frequency when the electrosurgical coagulating current is generated, and means connecting both sonic signal warning devices to the means for generating a blended electrosurgical current so that both sonic warning devices are actuated when the blended current is generated.
References Cited (Backward Citations)
US3699967A
Cited
US3794022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |