US4057063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sterilization by transuterine tube coagulation
Assignee: US Philips Corp
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Filing: 1976-02-27
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Granted: 1977-11-08
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Expires: 1996-02-27
Abstract
Abstract A device for sterilizing human females by transuterine fallopian tube coagulation wherein the substantial increase in impedance of the tissues during coagulation is used to signal for termination of treatment.
Inventors
- 👤 Antonius Cornelis Maria Gieles
- 👤 Gerardus Henricus Johannus Somers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:09
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B2018/00636; A61B2018/0066
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A device for sterilizing human females by transuterine tube coagulation, comprising: means for generating a high frequency voltage; flexible catheter probe means having an electrode end portion dimensioned to completely contact the wall area of a fallopian tube for transuterine placement of said electrode end portion thereof into said fallopian tube of a human female, means including said probe means for coupling said voltage from said means for generating to said electrode end portion, thereby delivering high frequency voltage from said generating means to said fallopian tube; means for making a common ground connection between said generating means and the human female; means responsive to the impedance of the tissues adjacent said electrode end portion for signalling when the substantial increase therein occurs indicative of the substantial completion of the dessication phase of the destruction of said tissues; and means for interrupting delivery of high frequency voltage to said electrode end portion in response to said signalling thereupon.
Claim 2
Independent Claim
158 words
A device for sterilizing human females by transuterine tube coagulation, comprising: means for generating a high frequency voltage; flexible catheter probe means having an electrode end portion dimensioned to completely contact the wall area of a fallopian tube for transuterine placement of said electrode end portion thereof into said fallopian tube of a human female, means including said probe means for coupling said voltage from said means for generating to said electrode end portion, thereby delivering high frequency voltage from said generating means to said fallopian tube; means for making a common ground connection between said generating means and the human female; means responsive to the impedance of the tissues adjacent said electrode end portion for signalling when the substantial increase therein occurs indicative of the substantial completion of the dessication phase of the destruction of said tissues; and means for interrupting delivery of high frequency voltage to said electrode end portion in response to said signalling thereupon.
Claim 3
Dependent Claim
52 words
A device as defined in claim 1 wherein said means for signalling comprises an incandescent lamp for indicating said substantial increase, said lamp being connected in series between said generating means and said electrode end portion, said lamp substantially extinguishes upon the reduction of current therethrough resulting from said substantial impedance increase.
Claim 4
Dependent Claim
55 words
A device as defined in claim 2 wherein at the side of said incandescent lamp connected to said electrode end portion, a voltage increase occurs as a result of said substantial impedance increase, said means for signalling further comprising a gas discharge lamp connected to said electrode end portion which energizes upon said voltage increase.
Claim 5
Dependent Claim
67 words
A device as defined in claim 1 wherein said means for signalling comprises an impedance in series between said generating means and said electrode end portion so that at the side thereof adjacent said electrode end portion a voltage increase occurs as a result of said substantial tissues impedance increase, and a gas discharge lamp connected to said electrode end portion which energizes upon said voltage increase.
Claim 6
Dependent Claim
30 words
A device as defined in claim 4 wherein said series impedance is an incandescent lamp which substantially extinguishes upon the reduction of current therethrough resulting from said substantial impedance increase.
Claim 7
Dependent Claim
51 words
A device as defined in claim 1, and further comprising means for applying to said electrode end portion a test voltage which is too low to cause coagulation, and means for measuring the voltage and current supplied to said electrode end portion for determining the initial value of said tissue impedance.
References Cited (Backward Citations)
US2102270A
Cited
GB855459A
Cited
US3163165A
Cited
FR1347865A
Cited
US3634652A
Cited
US3858586A
Cited
US3862636A
Cited
US3840016A
Cited
US3920021A
Cited
US3875945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |