US3595238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrosurgical apparatus to coagulate biological tissues
Assignee: Individual
•
Filing: 1968-08-09
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Granted: 1971-07-27
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Expires: 1988-08-09
Abstract
Abstract An electrosurgical instrument comprises a box of heat-conducting metal with a cover thereon forming a hermetic enclosure in which there is contained in isolation a heating element and a temperature transmitter. A tubular holder is connected to the enclosure and to a handle and connectors pass through the holder and handle to a temperature-measuring circuit with an indicator and a switch control power circuit adapted for connection to a power source. The temperature-measuring circuit is connected to the transmitter and the power circuit is connected to the heating element, the power circuit and temperature-measuring circuit being contained in a common unit.
Inventors
- 👤 Stanislav Alexeevich Gavrilov
- 👤 Mikhail Afanasievich Kostenko
- 👤 Vasily Vladimirovich Volkov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:57
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/08; A61B18/082
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
An electrosurgical instrument comprising a box of heatconducting metal, a cover on said box and forming a hermetic enclosure therewith, a tubular holder having one end connected to said enclosure and an opposite remote end, a handle connected to said remoTe end of the holder, a heating element in said enclosure, said enclosure defining a recess isolated from said heating element, a temperature transmitter in said recess, connector means passing through said holder and handle and connected to said heating element and temperature transmitter, and a unit connected to said connector means and disposed beyond said handle, said unit including a temperature-measuring circuit with indicator means connected to said transmitter and means for selectively connecting the heating element to a power source.
Claim 2
Dependent Claim
122 words
An electrosurgical instrument comprising a box of heatconducting metal, a cover on said box and forming a hermetic enclosure therewith, a tubular holder having one end connected to said enclosure and an opposite remote end, a handle connected to said remoTe end of the holder, a heating element in said enclosure, said enclosure defining a recess isolated from said heating element, a temperature transmitter in said recess, connector means passing through said holder and handle and connected to said heating element and temperature transmitter, and a unit connected to said connector means and disposed beyond said handle, said unit including a temperature-measuring circuit with indicator means connected to said transmitter and means for selectively connecting the heating element to a power source.
Claim 3
Dependent Claim
27 words
An instrument as claimed in claim 1 comprising a projecting pin connected to and extending from said enclosure to coagulate local areas of biological tissue being treated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |