CN1035541C - Woman sterilization stopper - Google Patents

Abstract

The present invention relates to a sterilation embolus which is arranged in the oviduct of a woman. The sterilation embolus comprises a stainless steel sleeve and a copper core, wherein the copper core is arranged in the stainless steel sleeve, and a gap for secretion passing is formed between the stainless steel sleeve and the copper core. The sterilation embolus is characterized in that positioning holes with various shapes are arranged on the sleeve, and the positioning holes are used for placing in salpinx walls for fixing. The sterilation embolus can also be a stainless steel solid, a cut for fixing or multiple sawtooth-shaped ring grooves are arranged on the surface of the sterilation embolus. A conic stop hole is arranged on the tail end of the embolus. Because the sterilation embolus is provided with a fixed slot, the sterilation embolus can not displace by the shrinkage of a salpinx. The sterilation embolus can be firmly clogged in the salpinx to block the combination of eggs and sperms. The sterilation embolus has the advantages of easy operation, short operation time, safety, etc. and can be easily accepted by people.

Description

Woman sterilization stopper

The present invention relates to women's contraceptive device, the intratubal sterilization embolus of particularly a kind of insertion can stop ovum to enter the uterus.

Existing women's methods of sterilisation, as tubal ligation, strict to the sterillization person, multiple contraindication is arranged, and multiple complications such as hydrosalpinx, abdominal cavity infection, adhesion may appear in postoperative sterilization, when serious even can cause death, thereby sterillization person has fear to ligation operation.Tubal adhesive blocking agent is also safe and reliable inadequately.Adhesion-blocker shrinks in process of setting, break away from tube wall, and some is absorbed by the body, and can excrete automatically under oviducal swing and wriggling and make the sterillization failure.If stop up with the rustless steel key, very easily come off.Another shortcoming of these methods is that hormone and the secretions that ovary produces can not normally be discharged through fallopian tube.Though have a kind of energy to see through the stifled sterillization device of bolt of hormone and secretions at present, it comprises stainless steel casing and filters sealing coat, and it is inserted the both sides isthmus of uterine tube, can stop ovum and sperm to meet, and reaches the sterillization purpose.But this method must be placed by operation, and difficulty is bigger, still might come off after putting into, and also may artificially adopt improper mode to take out, and influences normally carrying out of family planning.Disclose a kind of Woman sterilization stopper in CN91201351, its afterbody and inserter adopt thread connection.Because of mucus is arranged in the fallopian tube, smoother, sterilization embolus is difficult to separate with apparatus during operation, and filter screen is wherein also multiplied antibacterial easily, makes fallopian tube infection.This sterillization device is failed by animal experiment owing to unreasonable structure.Existing a kind of contraceptive device is that in utero T shape is encircled, and copper wire copper ion releasing in the juice of uterus of twining on it has the effect of killing sperm more by force, thereby produces contraceptive effect.But in utero T shape ring is still safe and reliable inadequately.

Disclosing a kind of uterine tube silastic plug in the Chinese patent 87208134, is the cylindrical-shaped structure body that more shallow annular concave arc groove 3 is arranged at the intermediate surface position of this plug.This cock body must can be inserted by the abdominal operation of complexity and in the outside binding of groove.If not by binding, this shallow cannelure itself does not have any retaining or fixation on the cock body.

The objective of the invention is to overcome above-mentioned difficulties of the prior art, and provide a kind of not performing a surgical operation just can insert intratubal sterilization embolus, can stop ovum and kill sperm, once putting into, difficult drop-off, and can have certain permeability.

Solution of the present invention is: a copper stamen is set in the rustless steel sleeve pipe of tybo sterilization bolt, the gap of passing through for secretions is arranged between copper stamen and the sleeve pipe; Have a pair of otch that can form opposite wedge shape barb on the sleeve pipe, opposite wedge shape barb can tangle tubal wall automatically and make its unlikely moving forward and backward.

This sterilization embolus is unimpeded at first, may stop up after use after a while, but fallopian tube adapts to, and can not cause complication such as hydrosalpinx again.For the women who does not have complication, also can adopt to have same design, but at this moment the more simple sterilization embolus of structure needn't consider the permeability of key, as long as can stop that ovum passes through.This sterilization embolus is solid rustless steel cylinder, has a pair of otch that can form opposite wedge shape barb equally in damaged surface.

In order to block fallopian tube with the rustless steel cylinder, the present invention adopts the structure of perforate, otch or annular groove to form opposite wedge shape barb, and it is fixed in the fallopian tube, and solved people and thirsted for solving always, but the technical barrier of not succeeding all the time.

Describe some embodiment of the present invention in detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of rectangular opening tubular type sterilization embolus.

Fig. 2 is the structural representation of dovetail slotted eye tubular type sterilization embolus.

Fig. 3 is the structural representation of hole, right angle tubular type sterilization embolus.

Fig. 4 is the structural representation of inclined hole tubular type sterilization embolus.

Fig. 5 is the structural representation of the solid sterilization embolus of angular cut.

Fig. 6 is the structural representation of the solid sterilization embolus of zigzag annular groove.

Fig. 1, Fig. 2, Fig. 3 and Fig. 4 belong to the tubular type sterilization embolus, comprise the copper stamen 2 of rustless steel sleeve pipe 1 and Qi Nei.Copper stamen and the coaxial setting of sleeve pipe can be fixed on cannula cavity with clamp with the copper stamen behind rustless steel sleeve pipe external pressure trace, also can adopt other method to fix certainly.Sleeve pipe 1 external diameter is decided with the fallopian tube thickness, is generally 2～2.5mm.If casing inner diameter 1mm, copper stamen external diameter is 0.8mm then, and is gapped 3 between the two, can pass through for fallopian tube secretions, but can stop that ovum passes through.Sterilization embolus is placed in the fallopian tube, and when sperm passed through, promptly the copper ion that is discharged by the copper stamen killed, and reaches the purpose of contraception.

For sterilization embolus being inserted reliably unlikely coming off in the fallopian tube, the present invention has the locating hole of different shape on the sidewall of sterilization embolus cylinder-shaped sleeve.Under foreign body stimulated, tubal wall shrank, thickens, and inwall can be absorbed in the locating hole, and tightly wrap embedding and live key, as shown in phantom in Figure 1, thus the fixation of playing.

The sleeve pipe of sterilization embolus is all cylindrical, as shown in Figure 1, has two symmetric rectangle locating holes 5 on the sleeve pipe 1, and this hole is by being formed perpendicular to the plane of casing axis and the plane of paralleling to the axis.As making the oblique section into, just can form the dovetail groove otch 6 shown in Fig. 2 perpendicular to the plane of axis.A kind of preferably structure is a right angle incision 7 shown in Figure 3, and it is formed with the plane that favours axis by the plane perpendicular to axis.This kind form also can further develop into angular cut shown in Figure 48.Thewedge shape barb 10 that above-mentioned otch forms more helps fixing.Otch 7,8 penetraction depths are considerably beyond centrage, and the retaining effect is better.More than these holes all be paired appearance, up and down the symmetry, be called the balance between two forces groove, both hindered key and advanced, also hinder it and retreat.For the ease of sterilization embolus is inserted in the fallopian tube, sterilization embolus front end tube wall inwardly shrinks, and forms blunt round end 4.

The tybo sterilization bolt should be done shortlyer, to reduce the adverse effect to human body.For making full use of the retaining effect of its afterbody, the chamfering in sleeve pipe 1 tail end hole can be expanded to the edge, become conical bore 9, make the edge comparatively sharp-pointed, play a part better to prevent to fall back.

The purpose that above-mentioned sterilization embolus leaves the gap is that the hormone of ovarian secretion can be passed through, and does not influence the uterine cycle reaction.Both made behind life-time service and stopped up, and, the hydrosalpinx phenomenon that causes because of ligation can not take place because of fallopian tube adapts to.For the women who does not have these complication, can adopt to have same idea, but the more simple sterilization embolus of structure.This sterilization embolus is a stainless steelsolid cylinder 21, and as shown in Figure 5, its outer surface has the similar aforesaid a pair ofotch 22 that can form opposite wedge shape barb 10.Thisotch 22 also can be right angle incision or angular cut etc.The form of aforementioned tubular type sterillization device perforate all correspondingly is applicable to the form of cut or cuts of solid.In addition, also can leave some zigzag annular grooves 24 on thesolid key 21, see Fig. 6, or the rectangle annular groove etc.Tail end at this solid key also has theconical bore 29 of chamfering expansion to the edge.This hole is simultaneously as the patchhole of laying apparatus.

During operation, after the routine sterilization, under the guiding of X-ray display instrument and uterine cavity lipiodol angiography, sterilization embolus is pushed into isthmus of uterine tube through uterine cavity and gets final product with apparatus.But the metal key is all radiography film makings after surgery.

This sterilization embolus is because of there being the slotted eye of fixation, and oviducal contraction can not make its displacement, and it will be blocked in isthmus of uterine tube securely and hinder essence, ovum combination.Through animal experiment, respond well.Compared obvious advantage with tubal ligation, easy and simple to handle as not performing an operation, can do an example in average 4 minutes.Avoided various complication, postoperative need not had a rest.Handling safety is very easily accepted by the masses.Compare with gluing and stoping method, can avoid the chemicals inflammatory reaction, and sterilization effect is more reliable.The metal key is easy to check, can prevent sham-operation, guarantees normally carrying out of family planning.

Claims (9)

1, a kind of ureteral sterilization embolus comprises rustless steel sleeve pipe (1), it is characterized in that being provided with copper stamen (2) in the said sleeve pipe (1), and the gap of passing through for secretions (3) is arranged between copper stamen and the sleeve pipe; Have a pair of otch (6,7,8) that can form opposite wedge shape barb (10) on the sleeve pipe (1), opposite wedge shape barb can tangle tubal wall automatically and make its unlikely moving forward and backward.

2, sterilization embolus as claimed in claim 1 is characterized in that said otch (6) is a dove-tail.

3, sterilization embolus as claimed in claim 1 is characterized in that said otch (7) is a right angle incision.

4, sterilization embolus as claimed in claim 1 is characterized in that said otch (8) is an angular cut.

5, as claim 1,2,3 or 4 described sterilization emboluss, the front end that it is characterized in that said sleeve pipe (1) is blunt round end (4), is beneficial to sterillization and fastens and insert in the fallopian tube.

6, as claim 1,2,3 or 4 described sterilization emboluss, it is characterized in that said sleeve pipe (1) tail end has chamfering and expands conical bore (9) to the edge, fall back preventing.

7, a kind of ureteral sterilization embolus, it is characterized in that it is a stainless steel solid cylinder (21), have a pair of otch (22) that can form opposite wedge shape barb (10) in damaged surface, opposite wedge shape barb can tangle tubal wall automatically and make its unlikely moving forward and backward.

8, sterilization embolus as claimed in claim 7 is characterized in that said otch (22) is right angle incision or angular cut.

9, as claim 7 or 8 described sterilization emboluss, it is characterized in that said solid cylinder (21) tail end has chamfering and expands conical bore (29) to the edge, fall back preventing.

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