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WO1984004666A1 - Contraceptive for animals - Google Patents

Contraceptive for animals

Info

Publication number
WO1984004666A1
WO1984004666A1 PCT/FR1984/000137 FR8400137W WO8404666A1 WO 1984004666 A1 WO1984004666 A1 WO 1984004666A1 FR 8400137 W FR8400137 W FR 8400137W WO 8404666 A1 WO8404666 A1 WO 8404666A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
contraceptive
female
support
vagina
according
Prior art date
Application number
PCT/FR1984/000137
Other languages
French (fr)
Inventor
Jean Robert Fournier
Original Assignee
Europ Rech Instr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0034Urogenital system, e.g. vagina, uterus, cervix, penis, scrotum, urethra, bladder; Personal lubricants
    • A61K9/0036Devices retained in the vagina or cervix for a prolonged period, e.g. intravaginal rings, medicated tampons, medicated diaphragms
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K21/00Devices for assisting or preventing mating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61DVETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D1/00Surgical instruments for veterinary use
    • A61D1/06Castrating appliances
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F6/00Contraceptive devices; Pessaries; Applicators therefor
    • A61F6/06Contraceptive devices; Pessaries; Applicators therefor for use by females
    • A61F6/08Pessaries, i.e. devices worn in the vagina to support the uterus, remedy a malposition or prevent conception, e.g. combined with devices protecting against contagion

Abstract

The contraceptive comprises on one hand a repulsive substance and on the other hand a spermicidal substance which are slowly soluble, as well as a hydrophilic carrier (1). The substances are contained for example in a capsule (2) or dispersed in the carrier (1). The contraceptive is placed in the vagina (A) of the female, at the vicinity of the cervix uteri (B) wherein substantially perfuse secretions of physiological liquid occur. The carrier (1) absorbs said liquid and expands. Thereby it bears against the vaginal walls and maintains in place the repulsive and spermicidal substances.

Description

BIRTH CONTROL ANIMAL The solutions adopted for human contraception are not immediately applicable to the problem of wildlife contraceptive. This results not only physiological and anatomical differences but also the fact that the woman has a behavior quite lucid and voluntary unlike the female animal that was not even aware of the problem and therefore does not include human intervention in the matter . The establishment of an intrauterine IUD suppose the intervention of a veterinarian and it has on the animal traumatic and even dangerous effects on his life since it is necessary to have a general anesthetic.

But the presence of an IUD is not an absolute guarantee of sterility, so that, even after conducting such a transaction, the pet owner is likely to want to oppose the coitus maie it which is interpreted by the female as an aggression against his natural instinctive behavior.

the intrauterine IUDs by endo-vaginal IUDs but the problem of keeping them in place has never been satisfactorily resolved and always assumes more or less accepted veterinary input Attempts have already been replaced. Thus, patent US-A-4,271,835 discloses (column 2, lines 9 to 14) which are already known intravaginal absorbent material and impregnated with a spermicide solution acting as contraceptive three tracks: barrier, absorption and retention of semen and spermicide prolonged action.

However, this US patent states (column 2, lines 44 to 55) that the pad should be impregnated with spermicide immediately before introduction into the vagina.

The US Patent 4,369,773 patent and US Patent 3,780,730 each describe a contraceptive has designed both to absorb the ejaculate and to contain a spermicide product.

Note that none of the above described patents provides a preventive action of coitus but only further action. The present invention, in contrast, provides a contraceptive which first has an effect for maie away from the animal species to prevent intercourse and then a possible effect barrier and spermicidal failure of deterrent. The invention further allows the use of a endovaginal contraceptive that can be set up and removed by the simple way of the pet owner and without having to do, call a veterinarian.

To this end, the invention relates to a contraceptive for female animals to be placed in the vagina of a female has adjacent cervical, characterized in that it comprises a hydrophilic support intended to be expanded by absorption of physiological fluids and which contains on the one hand a product slow diffusion to cause a repulsive reaction in the males of the species in question and, secondly, a slowly soluble spermicide. According to other characteristics of the invention: - the hydrophilic carrier is held clamped by a ring near its end opposite to the one to be located near the cervix of the female; - the ring secures the hydrophilic support and a capsule contrenant at least a dispersible product into the vagina of the female;

- the contraceptive is integral with a wire whose length is sufficient for it to extend to the outside of the vulva of the female and is made of an elastically deformable material but sufficiently rigid to remain in place despite the forces exerted on him and tending to urge it towards the vagina. The invention will be better understood from the following detailed description made with reference to the accompanying drawings. Of course, the description and the drawings are given by way of indicative and non-limiting example. Figure 1 is a schematic view showing a view extôrieure a contraceptive according to a particular embodiment of the invention.

2 is a schematic view showing a contraceptive of the type of figure 1 placed in the vagina of a dog seen in vertical section. Figure 3 is a view of the same contraceptive placed in the vagina of a dog seen in horizontal section.

Referring to the drawing, there is shown a contraceptive comprising a hydrophilic support 1 for a capsule 2 containing at least one slowly dissolving product. In the drawing, the capsule 2 is pierced with small holes 3 through which the material disperses.

The hydrophilic substrate 1 may be of any known type and, in particular, composed of one or more fibrous webs intended to expand by absorption of body fluids. This contraceptive occupies a low volume before use and can be implemented easily, without pain to the animal, especially with an applicator. It then expands by absorption of body fluids in particular holding the odorous secretions features of the availability of the female and her fertility. The holder 1 and the cap 2 can be joined by means of a kind of ring 4 inextensible so that the expansion of the support 1 occurs towards its free end but not to the end enclosed by the ring 4. The whole contraceptive that has just been described also comprises a thread 5 which is fixed here to the capsule 2, but which could also be secured to the support 1 or to the ring 4.

This contraceptive is designed to be engaged in the vagina A of a female animal as close to the neck B of the uterus C.

At this point, in fact, there are numerous liquid secretions through which the hydrophilic material constituting the support 1 expands and bears against the vaginal walls A and this effect results to maintain in place the capsule 2 containing the dispersible products.

These products can be a spermicide and a repellent for the males of the animal species.

In addition, the presence of the expanded support 1 supports the judgment of spermatozoa and their maintenance in a large area spermicidal activity.

This contraceptive therefore three ways: by preventive chemical effect due to the presence of the product own repellent to avoid coitus, for protective chemical effect due to the presence of the spermicide and mechanical effect or "barrier effect" due to the presence of the hydrophilic support 1.

To prevent the contraceptive is expelled as a result of movements of the vaginal wall, it is important to promote the expansion of the support 1 towards its end closest to the cervix B rather than its opposite end. This is achieved here by the ring 4 which prevents the carrier 1 from expanding along its entire length. As shown schematically in dotted lines in Figure 1, the expansion tends to occur in the form of suitable elongate cone is held in place by a neighbor contraceptive effect to that obtained with an expandable dowel maintaining a screw.

According to a particular embodiment of the invention, the spermicide product is disposed in the support 1 itself, especially by dispersion in the manufacture of a contraceptive.

Thus, the contraceptive product continues to pervade the vagina but is particularly concentrated in the support 1, where one expects a barrier of spermatozoa and this, of course, enhances the action of the contraceptive. The capsule 2 is located closest to the vulva D and if we place the repellent in the capsule 2 it favors its spread to the vulva D where it will be particularly well received by the males of the animal species.

According to the invention, the wire 5 is preferably made of a resilient but relatively rigid material that is to say "memory" so that it can not be collapsed inside the vagina particularly during intercourse .

This thread 5 is advantageously made of a very smooth synthetic material avoiding at maximum friction, so that it is insensitive to mouvenemts the penis and does not exert any traction on the contraceptive properly maintained in place.

Naturally, the diameter of the wire 5 and its s.ouplesse should be chosen not to be in any way offensive, nor female, nor for maie. The length of wire 5 is chosen so that it can extend beyond the vulva D, so that by pulling on the free end can be extracted contraceptive.

Note that the contraceptive that just described has additional advantages for certain animal species such as dogs.

Indeed, in the canine species, the fertile period of the female occurs twice a year and is preceded for about nine days of bleeding which cause very often becomes dirty and is therefore a very serious problem for homeowners bitches. By putting in place, at that time, contraceptive according to the invention yields an absorption effect of bleeding that prevents external impurities.

In this case, the contraceptive according to the invention is used as an absorbent pad and can be changed as often as necessary.

These cause bleeding in dogs need to lick and instinctive operation has the disadvantage of making quite ineffective external repellents that have been used until now to discourage male proceed to coitus and, there, to get infertility effect.

The contraceptive according to the invention comprising, in addition to the spermicide, an internal repellent having external fumes which can not be neutralized by either flows or by the licking of the dog, has a particularly high preventive efficiency.

After the barren first nine days occurs in dogs for about eleven days physiological fluids flows less abundant than bleeding and which are indicative of the fertile period of the bitch. At this time, the contraceptive according to the invention comes into its own as the spermicide product is held in place by the holder 1 perfectly expanded through the absorption of these physiological fluids.

These producing no external flow, the males are little or not solicited by their instinct and can even, as said above, be discouraged by the emanations of repellents.

In any event, if intercourse occurs anyway, the contraceptive exerts its dual chemical and mechanical action before the sperm may have reached the cervix B.

The contraceptive which has just been described can be realized according to various variants to adapt at best animal (cats, mares, etc.) and can receive modifications such as deletion and pure sim pie of the ring 4 and securing the wire 5 directly to the carrier 1 for example.

It is the same for dispersible products (spermicide and / or repellent) provided in all kinds of forms: in a capsule 2 or dispersed in the hydrophilic medium 1 as described above, or dispersed in a solid itself soluble.

Claims

1- contraceptive for female animals to be placed in the vagina (A) of an immediately adjacent female cervical (B), characterized in that it comprises a hydrophilic support (1) intended to be expanded by absorption of physiological fluids and which contains on the one hand a product to slow diffusion to cause a repulsive reaction in the males of the species in question and, secondly, a slowly soluble spermicide.
2- Contraceptive according to Claim 1, characterized in that the hydrophilic medium (1) is held clamped by a ring
(4) near its end opposite the one to be located near the neck (B) of the uterus (C) of the female.
3- Contraceptive according to claim 2 characterized in that the ring (4) secures the hydrophilic support (1) and a capsuie (2) containing at least one dispersible product into the vagina (A) of the female.
4- Contraceptive according to Claim 1, characterized in that it is integral with a wire (5) whose length is sufficient for it to extend to the outside of the vulva (D) of the female and which is made of an elastically deformable material but sufficiently rigid to remain in place despite donation offorts exercised on it and tending to urge it towards the interior of the vagina (a).
PCT/FR1984/000137 1983-05-24 1984-05-24 Contraceptive for animals WO1984004666A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8308486A FR2546400B1 (en) 1983-05-24 1983-05-24 Contraceptive for pets

Publications (1)

Publication Number Publication Date
WO1984004666A1 true true WO1984004666A1 (en) 1984-12-06

Family

ID=9289090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1984/000137 WO1984004666A1 (en) 1983-05-24 1984-05-24 Contraceptive for animals

Country Status (3)

Country Link
EP (1) EP0158639A1 (en)
FR (1) FR2546400B1 (en)
WO (1) WO1984004666A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269321A (en) * 1991-01-16 1993-12-14 Controlled Therapeutics (Scotland) Ltd. Retrievable pessary

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2151397B1 (en) * 1998-06-03 2001-07-01 Martinez Moreno Julio Fernando an application unit dose of chemical products and similar.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780730A (en) * 1971-05-28 1973-12-25 A Weisman Contraceptive
FR2224119A1 (en) * 1973-04-05 1974-10-31 Dickinson Ben
US3975350A (en) * 1972-08-02 1976-08-17 Princeton Polymer Laboratories, Incorporated Hydrophilic or hydrogel carrier systems such as coatings, body implants and other articles
US4086333A (en) * 1976-01-05 1978-04-25 Claudia Bredwell Method of eliminating sexual excitants from the discharge of a female animal in estrus
US4271835A (en) * 1978-05-17 1981-06-09 Kcdp Corporation Fluid-expansible contraceptive tampon and applicator
US4369773A (en) * 1980-11-05 1983-01-25 Milos Chvapil Contraceptive sponge - diaphragm bilayer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780730A (en) * 1971-05-28 1973-12-25 A Weisman Contraceptive
US3975350A (en) * 1972-08-02 1976-08-17 Princeton Polymer Laboratories, Incorporated Hydrophilic or hydrogel carrier systems such as coatings, body implants and other articles
FR2224119A1 (en) * 1973-04-05 1974-10-31 Dickinson Ben
US4086333A (en) * 1976-01-05 1978-04-25 Claudia Bredwell Method of eliminating sexual excitants from the discharge of a female animal in estrus
US4271835A (en) * 1978-05-17 1981-06-09 Kcdp Corporation Fluid-expansible contraceptive tampon and applicator
US4369773A (en) * 1980-11-05 1983-01-25 Milos Chvapil Contraceptive sponge - diaphragm bilayer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269321A (en) * 1991-01-16 1993-12-14 Controlled Therapeutics (Scotland) Ltd. Retrievable pessary
EP0577891A1 (en) * 1991-01-16 1994-01-12 British Technology Group Limited Retrievable pessary

Also Published As

Publication number Publication date Type
FR2546400B1 (en) 1987-05-22 grant
EP0158639A1 (en) 1985-10-23 application
FR2546400A1 (en) 1984-11-30 application

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