Patent US3840016A successfully refreshed from Google Patents.
US3840016A
Expired / Lapsed
US
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Electrocoagulation-bougie for the intrauterine tube sterilization
Assignee: Individual
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Filing: 1973-03-07
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Granted: 1974-10-08
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Expires: 1993-03-07
Abstract
Abstract The object of the invention is an electrocoagulation-bougie for the intrauterine sterilization of the tube, the bougie consisting of a hysteroscope and an electric conductor section emitting joulean heat, the conductor being installed at the bougie''s free end protruding from the upper end of the hysteroscope so that a radial heat radiation is obtained for the destruction of tissue pieces in the field of the section emitting joulean heat without hurting sound tissue pieces.
Inventors
- 👤 H Lindemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42; A61B18/00; A61B18/04; A61B18/08; A61B18/082; A61B2017/4233
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
96 words
An electro-coagulation bougie for intra-uterine tube sterilization, comprising a hysteroscope having a tubular shaft, an electrically conductive probe part extending from one end of said hysteroscope for providing Joulean heat radiation, two spaced apart insulating layers on said probe with the surface of said probe therebetween free of insulation whereby said Joulean heat is localized away from the end of said probe, and connecting means for making an electrical connection to said probe through said hysteroscope whereby said Joulean heat can be generated by a voltage potential difference between said probe and a portion of tissue.
Claim 2
Dependent Claim
96 words
An electro-coagulation bougie for intra-uterine tube sterilization, comprising a hysteroscope having a tubular shaft, an electrically conductive probe part extending from one end of said hysteroscope for providing Joulean heat radiation, two spaced apart insulating layers on said probe with the surface of said probe therebetween free of insulation whereby said Joulean heat is localized away from the end of said probe, and connecting means for making an electrical connection to said probe through said hysteroscope whereby said Joulean heat can be generated by a voltage potential difference between said probe and a portion of tissue.
Claim 3
Dependent Claim
30 words
The electro-coagulation bougie for intra-uterine tube sterilization as claimed in claim 1, wherein said connecting means comprises temperature sensing means for sensing the temperature in the vicinity of said probe.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |