CN86205066U - Valve type uterine cap - Google Patents
Valve type uterine cap Download PDFInfo
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- CN86205066U CN86205066U CN 86205066 CN86205066U CN86205066U CN 86205066 U CN86205066 U CN 86205066U CN 86205066 CN86205066 CN 86205066 CN 86205066 U CN86205066 U CN 86205066U CN 86205066 U CN86205066 U CN 86205066U
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Abstract
The utility model relates to a valve type uterine cap which is used as a vaginal contraception appliance. A one-way valve of the uterine cap uses magnetic attracting force and the inertial force of the motion of a human body to complete the motion for turning off and on the valve, can turn off the valve by the magnetic attracting force to block sperm cells from entering a passage of a cervix at proper time, and can turn on the valve by the inertial force to ensure that excreta of the cervix can be smoothly discharged. The utility model is provided with a double-layer shell body with the thick outer part and the thin inner part, wherein, the shell body can not damage the cervix for long-term placement. Thus, the utility model has the advantages of long-time placement, goof contraception effect, almost no side effect and certain versatility.
Description
This utility model relates to contraceptive device, is specifically related to women's diaphragm.
As the diaphragm of vaginal contraception instrument, what generally use is the enclosed diaphragm.This contraceptive device cost is low, easy to use, and side effect is little, but because it is an enclosed, removes the uterus Excreta so must regularly take off; And, though generally having several dimensions, this kind diaphragm adapts to different human needs, to specific individual, often still can not adapt to fully, cause the cervix uteri impression easily or collide because of having sexual intercourse easily to come off, and cause contraceptive failure.
For a kind of safe and reliable, the diaphragm that can lay for a long time is provided, people have worked out several diaphragm schemes that have check valve, and for example the public table of Japan patent gazette discloses for clear 56-501713 number is wherein a kind of.It is the diaphragm of specific individual's's " customization " the two diaphragm valves of band that this patent has proposed a kind of dentistry mould rotating technology that utilizes.This kind diaphragm profile is as contraceptive diaphragm, but certain degree of depth is arranged, and mainly is made up of inside and outside two-layer vaulted thin film, wherein, internal layer membrane has and the fine identical concave inside surface of specific cervix uteri outer surface, can cover the major part of cervix uteri, and its center of top is porose to communicate with uterine cavity; Topped outer membrane on above-mentioned hole has and the identical inner surface of the outer surface of above-mentioned internal layer membrane, have passage to make above-mentioned hole and communicate with the outlet of hole biasing along the inner surface of the outer surface of above-mentioned internal layer membrane and above-mentioned outer membrane, formation can be discharged the excremental pair of diaphragm type one-way valve device in uterus.This diaphragm is seen theoretically, owing to utilize the dentistry mould rotating technology that the cervix uteri shape of its inner surface and user is fitted like a glove, so promptly have no side effect to cervix uteri is non-stimulated substantially, has added check valve apparatus, so can lay for a long time.But according to clinical operation report, the contraceptive failure rate after this diaphragm uses is higher.Trace it to its cause its unsafe factor following points; 1. above-mentioned passage is opened by uterine secretions, and uterine cavity has secretions to discharge all the time, make this passage often stay open state, especially after using after a while, thin film can produce expendable plastic deformation, and more sperm provides the passage that enters uterine cavity, so, this pair diaphragm valve device comes down to a kind of one-way throttle valve, only can prolong time and distance that sperm enters uterine cavity, and can not stop sperm to enter uterine cavity fully with closed condition.2. when this medicated cap is placed on the cervix uteri, do not oppress cervix uteri, and this medicated cap is remained on the cervix uteri by the mucous surface tension between this medicated cap medial surface and the cervix uteri, when diaphragm is subjected to greater than above-mentioned capillary active force, for example menstrual period a large amount of menses go out, when this medicated cap is subjected to big outside pressure, perhaps be subjected to having sexual intercourse when colliding, diaphragm just can come off, and causes contraceptive failure.And this diaphragm need utilize the dentistry mould rotating technology, is necessary for each user and customizes one by one, and no versatility is made inconvenience, so difficulty is promoted the use of.
In view of the foregoing, the purpose of this utility model is to provide a kind of Valved contraceptive diaphragm, and it has certain versatility, but mass production, and easy to use, easy to utilize; It can be laid for a long time, can not damage cervix uteri or produce stink; It has reliable unipolarity blocking effect, and good contraceptive effect is arranged.
According to Valved contraceptive diaphragm of the present utility model, comprise elastomeric material housing that is provided with outlet that constitutes and the check valve apparatus that is located on this outlet, it is characterized in that, in above-mentioned housing comprises, two-layer outward, wherein, shell body can be divided into again the thicker flange portion of wall with the slick and sly crown portion two parts that link to each other of flange portion, above-mentioned outlet is located at the concavity place, thin-walled top of this crown portion, have with the slick and sly above-mentioned thin-walled inner housing that is connected in the bottom of above-mentioned flange portion and the roughly identical smooth inner surface of lateral surface of cervix uteri, above-mentioned check valve apparatus is the hinged closed type check valve with magnetic, and it comprises the valve seat device that is fixed on the above-mentioned outlet and is hinged on the hinged closed type moving valve plate device with certain deadweight on the above-mentioned shell body top.
Describe this utility model in detail below in conjunction with accompanying drawing
Fig. 1 is the axial cutaway view according to Valved contraceptive diaphragm one embodiment of the present utility model,
Fig. 2 is that the check valve of diaphragm shown in Figure 1 partly enlarges cutaway view.
As shown in Figure 1, the Valved contraceptive diaphragm in the present embodiment is made of the housing of being made by medical grade silicon rubber of sandwich annular seal space 3 heavy wall shell body 1 and thin-walled inner housing 2.Above-mentioned housing can be divided into flange portion 9 and crown portion 8 two parts again, one end of this heavy wall flange portion 9 and 2 slick and sly linking to each other of thin film shape thin-walled inner housing, the crown portion that the other end is thin with wall, external diameter is less is slick and sly to link to each other, this crown portion top concavity place is provided with outlet 7, and this outlet 7 is provided with magnetic check valve apparatus 6.Above-mentioned thin-walled inner housing 2 is covered with the medial surface of the whole housing except that outlet 7, and the inner surface that roughly conforms to the shape of cervix uteri lateral surface and size is arranged.The liquid that contains micro-copper sulfate in filling in the above-mentioned annular seal space 3.Owing to be filled with liquid in the annular seal space 3, so can pass to the cervical mucosa that contacts with inner housing 2 to suffered pressure equably by thin-walled inner housing 2, so, when this diaphragm uses, what the cervix uteri surface that contacts with diaphragm was subjected to is uniform lighter pressure, place through long-term, cervix uteri can not sustain damage yet.So will sneak into the copper sulfate of trace in the liquid in the annular seal space 3, be because the copper sulfate ion has certain sterilization and mildew-proof function, it constantly to exosmosis, has certain antibacterial and deodorant effect by thin-walled inner housing 2, is convenient to the long-term placement of diaphragm.Simultaneously, the packing fluid in the annular seal space 3 can make into and out of the moisture content of thin-walled inner housing 2 to reach dynamic equilibrium by suitable preparation, can make and maintain certain amount of fluid in the annular seal space 3 for a long time, can play even pressure effect for a long time.This have the diaphragm of even pressure effect that certain stability of laying is arranged again, because make this medicated cap remain on active force on the cervix uteri, except that mucous surface tension, also has certain pressure, so, generally can not collide isodynamic effect and not come off because of having sexual intercourse.Because inner housing 2 has covered the medial surface of the whole housing except that outlet 7, so no matter where be subjected to active force, can not produce foreign body sensation basically.In addition, again because the diaphragm of this kind structure has utilized the even pressure effect of liquid, needn't too much consider the anastomose property of medicated cap and cervix uteri, so certain versatility is arranged, needn't make one by one for user, as long as produce the suitable series of products of dimensions, just can satisfy the needs of most of user, easy to utilize.In the present embodiment, as shown in Figure 1, above-mentioned housing forms the thin projection that includes cavity 5 of wall at its top ends periphery, the top of the check valve apparatus 6 the during top of this projection 5 a little higher than closure state that is located on the housing outlet 7, be filled with liquid in the projection 5, this projection 5 has cushioning effect, can reduce or eliminate the foreign body sensation when having sexual intercourse.
The structure of the magnetic check valve apparatus in the present embodiment as shown in Figure 2.Among Fig. 2, the ring-shaped valve seats 11 that magnetic rubber constitutes is fixed on the top outlet 7 of above-mentioned housing, and outlet 7 is aimed in the hole of this ring-shaped valve seats.Deform when preventing that this valve seat 11 and near elastomeric material thereof are stressed, be provided with near this valve seat 11 and rigidly fix ring 14.The periphery of valve seat 11 is provided with the hinge 13 that elastomeric material constitutes, this hinge 13 has a swing arm 13a who stretches out to the hole of above-mentioned valve seat 11 heart, the moving valve plate 12 that is made of magnetic rubber is fixed on this swing arm 13a, disposing copper rigidity weight stack 15 on this moving valve plate 12, the moving valve plate device that this moving valve plate 12 and weight stack 15 constitute can be that the open and close valve is made to swing in the center with the root articulated section 13b of swing arm 13a.The magnetic rubber that constitutes above-mentioned moving valve plate 12 and valve seat 11 is sneaked into the uncommon soil particle formation of permanent magnetism in rubber, in certain distance range, valve seat and moving valve plate can lean on the automatic adhesive of magnetic force.For improving the intensity of hinge 13, guarantee above-mentioned articulated section 13b can bear the swing repeatedly of above-mentioned moving valve plate device and do not fracture, articulated section 13b above-mentioned hinged 13 and near hinge material in, sneaked into an amount of enhancing nylon yarn, can certainly sneak into other enhancing material.The purpose of copper rigidity weight stack 15 is installed on the above-mentioned moving valve plate 12, mainly be in order to make this moving valve plate device have certain rigid and deadweight, because rigidity is arranged, the impulsive contact force that this moving valve plate device just can may not be subjected to when having sexual intercourse is out of shape so that produce the slit that sperm is passed through, simultaneously, because copper has certain spermicide effect, so can further improve the contraception safety.Because certain deadweight is arranged; the people is when normal activity such as walking upright, and this moving valve plate device just can produce certain inertia force, and it is along the inertia force component of valve block opening direction; make this moving valve plate device overcome magnetic attraction and open, guarantee that the uterine cavity Excreta can discharge smoothly.And when having sexual intercourse, because the people is the level of state, at this moment, as long as above-mentioned articulated section 13b is positioned on the horizontal radius of valve seat 11, as long as promptly make the moving valve plate device be in the closed hang of trend, magnetic attraction just can make the moving valve plate device swing valve-off towards valve seat, stops sperm to enter uterine cavity by valve.Above-mentioned moving valve plate 12 and valve seat 11 contact the sealing surface that end face constitutes no-float, and, because moving valve plate and valve base chamber have magnetic field, magnetic field to sperm pass through inhibition is arranged, so strengthened the blocking effect of sealing face.The lateral surface 12a of the above-mentioned moving valve plate 12 adjacent with the sealing end face is conic sections, so, when the moving valve plate device leans on magnetic attraction when valve seat 11 swings are close, even have dislocation slightly, owing to there is the effect of this taper seat and magnetic force, the moving valve plate device also can slide into correct make position along taper seat, so can stop sperm to enter uterine cavity reliably.
In addition, Valved contraceptive diaphragm in the present embodiment, outer surface appropriate location at its shell body, be provided with projection and mark, like this, when user is laid, just can see Fig. 2 to above-mentioned articulated section 13b(easily) be placed on the appropriate location, so that when having sexual intercourse, the moving valve plate device can be in the closed hang of trend, just can enter uterine cavity to stop sperm by automatic-closing valve by magnetic attraction.
Valved contraceptive diaphragm in the present embodiment is through clinical mini-test of example and compbined test surplus 100, wherein, about the degree of reliability of check valve performance, the experimenter is checked discovery at the same branch of a family in back six hours, the cervix uteri mouth does not have motile sperm and exists, and shows dependable performance.About having no side effect, after placing a menstrual cycle continuously, this diaphragm checks discovery, stink and no mycete are not taken place therebetween yet and grow in the no impression in cervix uteri surface, and be noiseless to the human body normal physiological simultaneously yet.
In the present embodiment, valve seat and moving valve plate adopt magnetic rubber, having disposed inflexible retainer ring and weight stack in addition again prevents its distortion or increases its deadweight, also can constitute valve seat and the moving valve plate that suitable deadweight is arranged with the rigid material of permanent magnetism, or only allow the side in valve seat or the moving valve plate that permanent magnetism is arranged, the opposing party adopts easy magnetization materials such as ferrum, as long as the appropriate magnetic attraction of size can be arranged between them and make moving valve plate have the suitable deadweight of size, so that can be in due course when using, by the magnetic attraction automatic-closing valve, or by means of the inertia force Open valve, promptly can block sperm when being necessary and enter uterine cavity, can guarantee that at ordinary times Excreta discharges again unblockedly.In addition, the above-mentioned ring that rigidly fixes also can be not interposing in the annular seal space 3, for example can place the behind of valve seat 11 to wait other place near valve seat 11.Also have, above-mentioned inner housing 2 also can not cover whole inner housing, and only covers the medial surface that contacts with cervical mucosa, also topping up body not in the annular seal space.Even inner housing also can make non-case typely, do not establish annular seal space between double Shell, and the thin-walled inner housing only links to each other with bottom one end of shell body, and the connecting place of inside and outside housing roughly forms the ∪ font.This type of outer thick interior thin double Shell all has the stability of laying preferably and can lay the long period.
As mentioned above, Valved contraceptive diaphragm of the present utility model, owing to adopted the inertia force that utilizes magnetic attraction and human motion to finish the pass, started the magnetic one-way valve device of work and adopted outer thick interior thin double-layer shell structure, so safe and reliable one-way blocking effect is arranged, can lay for a long time, can not damage uterine neck or stink takes place, and have versatility, be suitable for promoting the use of, and lay conveniently, instruct a little, the normal operation person just can lay voluntarily.
Claims (10)
1, a kind of Valved contraceptive diaphragm, comprise what elastomeric material constituted, be provided with the housing and the check valve apparatus that is located on this outlet of outlet, it is characterized in that, in above-mentioned housing comprises, two-layer outward, wherein, shell body can be divided into again the thicker flange portion of wall with the slick and sly crown portion two parts that link to each other of flange portion, above-mentioned outlet is located at the concavity place, thin-walled top of this crown portion, has the smooth inner surface that roughly conforms to the lateral surface of cervix uteri with the slick and sly above-mentioned thin-walled inner housing that is connected in the bottom of above-mentioned flange portion, above-mentioned check valve apparatus is the hinged closed type check valve with magnetic, and it comprises the valve seat device that is fixed on the above-mentioned outlet and is hinged on the hinged closed type moving valve plate device with certain deadweight on the above-mentioned shell body top.
2, by the described Valved contraceptive diaphragm of claim 1, it is characterized in that, above-mentioned valve seat device comprises the ring-shaped valve seats that magnetic rubber constitutes and can prevent the ring that rigidly fixes that this valve seat itself and elastomeric material on every side thereof deform, above-mentioned moving valve plate device comprises that magnetic rubber constitutes has the disc moving valve plate of counterface with above-mentioned valve seat and is fixed on rigidity weight stack on this moving valve plate, and an end of this moving valve plate device is hinged on outlet place, above-mentioned housing top by the hinge that elastomeric material constitutes.
3, by the described Valved contraceptive diaphragm of claim 2, it is characterized in that above-mentioned hinge is made of rubber, and when above-mentioned moving valve plate device swing, take place at least strain the articulated section and near, be mixed with the reinforcing material of the nylon yarn that can improve intensity and so on.
By the described Valved contraceptive diaphragm of claim 3, it is characterized in that 4, above-mentioned moving valve plate and valve seat constitute by containing the uncommon particulate rubber of great soil group permanent magnetism.
By the described Valved contraceptive diaphragm of claim 4, it is characterized in that 5, the lateral surface of the above-mentioned moving valve plate device adjacent with above-mentioned counterface is a conic section.
6, by the described Valved contraceptive diaphragm of claim 5, it is characterized in that above-mentioned rigidity weight stack is a copper sheet.
7, by each the described Valved contraceptive diaphragm in the claim 1～6, it is characterized in that the double-layer shell structure that above-mentioned housing approaches in thick at least, the centre is filled with liquid outside the position that contact with cervical mucosa is.
8, by the described Valved contraceptive diaphragm of claim 7, it is characterized in that, contain the copper sulfate of trace in the fill liquid in the above-mentioned double Shell.
9, by the described Valved contraceptive diaphragm of claim 8, it is characterized in that above-mentioned housing forms the thin projection that includes cavity of wall at its top periphery, the top of a little higher than above-mentioned valve when closed of this projection is filled with liquid in its cavity.
10, by the described Valved contraceptive diaphragm of claim 7, it is characterized in that above-mentioned housing is made of medical grade silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86205066 CN86205066U (en) | 1986-07-25 | 1986-07-25 | Valve type uterine cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86205066 CN86205066U (en) | 1986-07-25 | 1986-07-25 | Valve type uterine cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86205066U true CN86205066U (en) | 1987-05-13 |
Family
ID=4807979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86205066 Ceased CN86205066U (en) | 1986-07-25 | 1986-07-25 | Valve type uterine cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86205066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284829A (en) * | 2013-04-17 | 2013-09-11 | 卢泉生 | Method for manufacturing sexual assault preventing cervix condoms |
-
1986
- 1986-07-25 CN CN 86205066 patent/CN86205066U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284829A (en) * | 2013-04-17 | 2013-09-11 | 卢泉生 | Method for manufacturing sexual assault preventing cervix condoms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |