US3985137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tip for veterinary surgical cauterization instrument
Assignee: Individual
•
Filing: 1974-09-27
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Granted: 1976-10-12
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Expires: 1994-09-27
Abstract
Abstract A tip for a veterinary surgical cauterization instrument is disclosed in which an electric current conducting heat generating tip has a non-conducting heat resistant sheath surrounding a portion of the tip a selected distance from the tip apex.
Inventors
- 👤 Brian T. Donohue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:17
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/08; A61B18/10; A61B2018/00636; A61B2018/00642
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
In an electrosurgical cauterization instrument, for insertion into a body cavity, having a variable current control from a power source, an insulated handle having an electrode receiving end and an operative electrode tip comprised of a suitable electrical resistance material capable of producing heat, wherein the improvement comprises: a slidable ovular protective insulating sheath, being positioned near said tip, for insertion into an orifice of said body cavity resulting in spreading and protection of healthy and sensitive tissue during a cauterization procedure, said slidable sheath having two longitudinal bores through which a U-shaped electrode forming said tip passes.
Claim 2
Dependent Claim
98 words
In an electrosurgical cauterization instrument, for insertion into a body cavity, having a variable current control from a power source, an insulated handle having an electrode receiving end and an operative electrode tip comprised of a suitable electrical resistance material capable of producing heat, wherein the improvement comprises: a slidable ovular protective insulating sheath, being positioned near said tip, for insertion into an orifice of said body cavity resulting in spreading and protection of healthy and sensitive tissue during a cauterization procedure, said slidable sheath having two longitudinal bores through which a U-shaped electrode forming said tip passes.
References Cited (Backward Citations)
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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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |