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Publication numberUS3840016 A
Publication typeGrant
Publication dateOct 8, 1974
Filing dateMar 7, 1973
Priority dateMar 10, 1972
Publication numberUS 3840016 A, US 3840016A, US-A-3840016, US3840016 A, US3840016A
InventorsLindemann H
Original AssigneeLindemann H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electrocoagulation-bougie for the intrauterine tube sterilization
US 3840016 A
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.
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United States Patent 1191 [111 3,840,016

Lindemann Oct. 8, 1974 [54] ELECTROCOAGULATION-BOUGIE FOR 2,102,270 12/1937 Hyams 128/303.17

3,163,165 12/1964 TUBE $645,265 2/1972 Majzlin 128/408 X [76] Inventor: Hans-Joachim Lindemanni Kleiner Schaferkamp 43 2000 Hamburg 6 Przmary ExammerChann1ng L. Pace Germany Attorney, Agent, or FirmErnest F. Marmorek [22] Filed: Mar. 7, 1973 [211 Appl. No.: 339,015 ABSTRACT The object of the invention is an electrocoagulation- [30] Foreign Application Priority Data bougie for the intrauterine sterilization of the tube, the, Mar. 10,1973 Germany 7305041 bougie Consisting of a hysteroscope andan electric V conductor section emitting joulean heat, the conduc- [52] U.S. Cl. 128/303.17, 128/408 tor being installed at the ug s free nd pr truding 51 Int. Cl. A61n 3/00, A6lb 17/36 a from the pp end of the hysteroscope so that a [58] Field of Search 128/303.17, 401, 408 dial heat radiation is obtained for the destruction of tissue pieces in the field of the section emitting jou- [56] R f r Cit d lean heat without hurting sound tissue pieces.

UNITED STATES PATENTS' 1,943,543 1/1934 McFadden 128/303.l7 2 i 2 Drawmg F'gures ELECTROCOAGULATION-BOUGIE. FOR THE INTRAUTERINE TUBE STERILIZATION SUMMARY or THE INVENTION Reference is had to applicants co-pending application Ser. No. 339,011 filed Mar. 7, 1973.

The invention relates to an electrocoagulationbougie for the intrauterine tube sterilization. Intrauterine sterilization of the tube by means of heat radiation is known. The devices used are, however, not appropriate to generate a punctiform heat radiation to irradiate only the tissue piece which is to be eliminated. During irradiation, admission of heat respectively, the field surrounding the tissue piece which is to be eliminated is equally reached and destroyed so that lesions caused by heat occur frequently.

It is an object of the invention to construct a bougie with which the elimination of specific tissue pieces is made possible without hurting the surrounding tissue fields. As a solution to this task an electrocoagulationbougie for intrauterine sterilization is suggested which is characterized by a hysteroscope constructed in a manner known per se and including, in the interior of its insulated tubular shaft a filamentary conductor having an elongated piece protruding from the upper end of the shaft, said piece having between two insulated sections a non-insulated section emitting joulean heat.

The object of the invention is shown in the drawing as follows:

FIG. 1 shows a hysteroscope introduced into the uterus and being equipped with an electrocoagulationbougie, partly as an elevation, partly as a vertical section, and

.FIG. 2 is a magnified illustration of the free end of the electrocoagulation-bougie given as a perspective view.

FIG. 1 shows a hysteroscope 10 designed in a manner known per se and consisting, in the main, of a tubular shaft 11 having a lateral inlet at 12 for an electrocoagulation-bougie 13. The hysteroscope l moreover reveals a cap-formed connection body 14 which is, in the embodiment shown in FIG. 1, set upon the os uteri 21 of a uterus shown at 20 and comprising the two oviducts 22, 23. The shaft 11 of the hysteroscope is, togetherwith the piece lying above the set-up body 14, introduced into the uterus 20 up to the zone of the uterine fundus 25.

At its upper end the shaft 11 of the hysteroscope disposes of an aperture through which the prolonged end 13a of the e1ectrocoagulation-bougie 13 is taken out. The electrocoagulation-bougie 13'consists of an insulated conductor whose prolonged end 13a which protrudes from the shaft 11 of the hysteroscope 10 reveals a section 130 emitting joulean heat and being disposed between two insulated sections 13b and 13d. The insulated section 13d represents the end of the prolonged piece 13a of the electrocoagulation bougie l3 and is formed like a cap (FIG. 2).

.By the fact that the part of the conductor which is taken out of the hysteroscope 10 has got only one sec- I tion 13c which is emitting joulean heat, it is possible to heat a zone in the intra-uterine field of the oviduct of the uterus.

The filamentary conductor 13 which is arranged in the shaft 11 of the hysteroscope forms, during the operation of the electrocoagulation-bougie, one of the poles of the conductor, whereas the human body itself forms the other pole. It is, however, equally possible to arrange in the interior of the shaft 11 of the hysteroscope 10 two filamentary conductors which are insulated against each other and whose free ends taken out through the upper end of the shaft 11 are connected via a section of the conductor of high resistance through which the joulean heat is emitted. Lamellar contact plates with vaporized filamentary conductors can equally be used. The temperature of the heat emitted by the electrocoagulation-bougie can be controlled by a series resistor.

The special advantage of the electrocoagulationbougie constructed according to the invention consists in that a radial field emitting joulean heat is formed at the end of the bougie'so that sterilization is made possible by irradiating specific parts of the tissue. By the fact that the free end of the electrocoagulation-bougie which joins the joulean heat emitting section 130 has an exterior envelope of insulating material, healthy parts of the tissue are not damaged and frontal irradiation is avoided.

In order to be able to control the temperature in the field of section 130 of the bougie there exists the possibility to use a high-temperature conductor shown by No. 30 in FIG. 2which can be used for measuring, regulating and controlling. The high-temperature conductor 30 is connected to a control and regulating device given at 31 and 32 in' which the temperature measured at the place where the heat is emitted is stored and used for controlling the electric voltage for the bougie. The high-temperature conductor 30 can exist in form of a filamentary semi-conductor which is specially arranged in the interior of the shaft 11, or the bougie 13 itself can be used as high-temperature conductor.

I claim:

1. An electro-coagulation bougie for intra-uterine 2. 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.

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Classifications
U.S. Classification606/49, 607/138
International ClassificationA61B18/08, A61B17/42, A61B18/04
Cooperative ClassificationA61B17/42, A61B2017/4233, A61B18/082
European ClassificationA61B17/42, A61B18/08B