RU216340U1 - Vaginal retractor for artificial insemination of sheep and goats - Google Patents

Abstract

The utility model relates to artificial insemination of animals, in particular sheep and goats, namely to devices for examining the mucous membrane of the vagina and cervix when inserting a catheter syringe with sperm into the vagina or cervix. A vaginal dilator for artificial insemination of sheep and goats, comprising a tubular body made of a heat-resistant material, ending in an oblique cut and having a through cutout at the top, communicated with the body and placed at an angle to it, a handle and an illuminator in the form of a light bulb, characterized in that the tubular body and the handle connected to each other at an angle of 135°, and the illuminator is placed in the handle, equipped with a rechargeable battery and installed in the case. The technical result that can be achieved using the proposed utility model is achieved by the fact that in the vaginal dilator for artificial insemination of sheep, including a tubular body made of heat-resistant material, with a cross-section variable along its length in the form of an ellipse at the front end of the tube is less than the length this axis at its base and having a through cut at the top, communicated with the body and placed at an angle to it, the handle and the illuminator in the form of a light bulb, the tubular body and the handle are connected to each other at an angle of 135 °, and the illuminator is placed in the handle, equipped with a battery and installed in a pencil case. In addition, a groove is made in the handle for accommodating the rear end of the tubular body. The technical result is achieved by the fact that the vaginal dilator is convenient in performing cervical and paracervical artificial insemination of sheep and goats. The use of the proposed utility model will improve the quality of diagnostic procedures and the fertility of sheep and goats with the cervical method of artificial insemination.

Cervical sperm injection during artificial insemination of sheep and goats predetermined good results, although they are statistically close to significant. Due to their design features, metal vaginal dilators cause pain and temperature irritations to the walls of the vagina during insemination. These two factors reduced the effectiveness of insemination, as irritations contributed to the peristaltic contraction of the smooth muscles of the cervix and the ejection of the injected dose of sperm from the cervical canal into the vagina.

Description

Field of technology to which the utility model belongs

The utility model relates to artificial insemination of animals, in particular sheep and goats, namely to devices for examining the mucous membrane of the vagina and cervix when inserting a catheter syringe with sperm into the vagina or cervix.

State of the art

Known light-conducting vaginal dilator for artificial insemination of sheep. The use of which, with the introduction of sperm or drugs into the cervical canal, leads to fixation by an oblique cut of the dilator body, which is made of light-conducting material, the light bulb is fixed on the upper wall at the base of the dilator body, which has a handle in which an electric wire is placed that connects it to a power source ( patent RU 2264089, A01K 13/00, published on November 20, 2005).

The disadvantage of the design of the light-conducting vaginal dilator is that the light bulb located on the body does not provide a clear illumination of the state of the mucous membrane, pathological mucus in the vagina, cervix, the degree of opening of the cervical canal after lambing and during estrus, and also does not provide accounting for the depth of insertion catheter syringe into the cervical canal. The expander does not have an autonomous source of electric current; the tubularity of the dilator in combination with a therapeutic catheter, insemination syringe-catheter during insemination and treatment procedures create stress factors of a tactile, painful nature, which reduces the effectiveness of insemination and treatment procedures.

Known tubular vaginal dilators for gynecological examination and artificial insemination of sheep, including a cylindrical body with a handle. The proposed dilator provides both fixation of the cervix and expansion of the vaginal fornix, eliminating injury to the mucous membrane, and the inserted end of the dilator is elastic and has a cutout that repeats the shape of the cervix (patent RU No. 2368352 publ. 27.09.2009).

The disadvantage of this expander is the lack of illumination of the mucous membrane of the cervix, which makes it impossible to distinguish the inflammatory process from the norm and determine the nature (serous, catarrhal, purulent) of the mucus flowing from the cervix, it is impossible to establish at what depth the dose of sperm, medicinal substance, from this depends on the effectiveness of fertility and treatment procedures. A cut that repeats the cervix, having constant dimensions, does not make it possible to insert therapeutic or inseminating catheters to the desired depth with varying degrees of opening of the cervical canal. When using this device, stress factors of a painful, tactile nature are created in animals during artificial insemination, since with the visocervical method, a vaginal dilator and a syringe catheter are used simultaneously.

Also known is the design of a metal vaginal dilator having two blades (branches) and a side cutout through which you can leave the insemination catheter in the cervical canal before injecting a dose of sperm into the folds of the cervix, remove the metal vaginal dilator, as if by removing the stress factors of pain tactile cold character, because this expander is most often made of metal (RU 25441410С publ. 02.10.2015).

The disadvantage of this dilator is that when it is introduced into the vagina, stress factors of a painful, tactile, temperature nature are created, as well as injury to the vagina of the cervix. When the dilator is inserted, the female bends her back from pain, avoids its introduction and groans, the cervix contracts spasmodically, which leads, after the administration of drugs or a dose of sperm, to pushing them out of the cervix or vagina.

Known tubular vaginal mirror, which consists of a plastic tube with a slot, a handle with a current source and an illuminator in the form of a light bulb mounted on a rod and located inside the tube. (SU 296576 A1 published 03/02/1971).

The disadvantage of this mirror is that the tube has the shape of a cylinder of small diameter, as a result of which the view and freedom of action during insemination is limited. An increase in the diameter of the tube leads to additional irritation of the genital tract. In addition, in many animals, mucus is abundantly secreted in the vagina, which, getting into the tube, interferes with work. To remove the mucus, the mirror is rotated 180, the mucus is drained through the slot and the mirror is returned to its original position. Such manipulations also disturb the animal.

Known light guide vaginal dilator, which consists of a transparent tube (plexiglass) connected to the light guide plate with glue, a round flashlight with two batteries and an adapter for connecting the flashlight to the light guide plate.

However, the illumination of the cervix and vaginal walls with this device is completely insufficient and, therefore, such dilators are not suitable for their practical use.

Given the significant relevance of the issue of developing a convenient and effective device for the work of technicians for artificial insemination of sheep and goats, we designed, manufactured and tested a new model of a device for artificial insemination of sheep and goats by the cervical method, which we called the vaginal dilator for artificial insemination of sheep and goats.

Disclosure of the essence of the utility model

The task to be solved by the utility model is to increase the fertility of sheep in the cervical method of artificial insemination and to improve the quality of diagnostic procedures.

The proposed vaginal dilator is simple in design, easy to disinfect and fully meets all the requirements of operation (portability, light weight and ease of use)

The technical result that can be achieved using the proposed utility model is achieved by the fact that in the vaginal dilator for artificial insemination of sheep, including a tubular body made of heat-resistant material, with a cross-section variable along its length in the form of an ellipse at the front end of the tube is less than the length this axis at its base and having a through cut at the top, communicated with the body and placed at an angle to it, the handle and the illuminator in the form of a light bulb, the tubular body and the handle are connected to each other at an angle of 135 °, and the illuminator is placed in the handle, equipped with a battery and installed in a pencil case.

In addition, a groove is made in the handle for accommodating the rear end of the tubular body.

The technical result is achieved by the fact that the vaginal dilator is convenient for performing cervical and paracervical artificial insemination of sheep and goats.

Brief description of drawings and other materials

In FIG. 1 - shows a vaginal dilator for artificial insemination of sheep and goats, side view, where: 1 - tubular body of the dilator; 2- handle; 3-button on and off lighting.

In FIG. 2 - a vaginal dilator for artificial insemination of sheep and goats is presented, top view, where: 4-elliptical extension at the end of the body; 5 - upper through cut.

In FIG. 3a - shows the tubular body of the vaginal dilator for artificial insemination of sheep and goats, side view.

In FIG. 3b - shows the tubular body of the vaginal dilator for artificial insemination of sheep and goats, top view.

In FIG. 4 - the handle case with the illuminator of the vaginal dilator for artificial insemination of sheep and goats is presented, top view, where: in-case; v-6 - lighting lamp; c-7 - groove for accommodating the rear end of the tubular body.

Implementation of the utility model.

In FIG. 1 and 2 shows a vaginal dilator for artificial insemination of sheep and goats, side and top view, which is made of a heat-resistant material, with a cross-section variable along its length in the form of an ellipse (4) at the front end of the tube is less than the length of this axis at its base and having at the top through cutout (5), communicated with the body and placed at an angle to it, the handle and the illuminator in the form of a light bulb (6), the tubular body (1) and the handle (2) are interconnected at an angle of 135°, and the illuminator is placed in the handle (2 ) , equipped with a battery and installed in a pencil case (figure 4(c)).

In addition, a groove is made in the handle (2) (figure 4 (7)) for accommodating the rear end of the tubular body and an electric light bulb (6) is fixed together with a reflector that directs electric light into the wall of the expander tubular body, providing light transmission without loss of light and the uniformity of its distribution in the walls of the vaginal dilator, ensuring the concentration of the light flux on the oblique section of the vaginal tube. This allows you to visually identify the condition of the mucous membrane of the vagina and cervix and deeply cervically inject a dose of sperm. The tubular body of the dilator (1) has an oblique cut, located upwards, which is a collector of light rays and a fixator of the cervix, ensuring the correct insertion of the catheter syringe with sperm. The dilator has a through longitudinal upper cutout (5), through which we have the opportunity to remove the dilator from the vagina, leaving the syringe catheter in the cervical canal, reducing stress factors of a painful, tactile nature and thereby excluding spasmodic contractions of the uterus muscles.

The vaginal dilator is used in the following way.

Before artificial insemination of a sheep or goat, we remove the lighting case (c) from the handle (2) (figure 4). The tubular body of the dilator (1) is placed in the sterilizer for 10 minutes (T-100°C), after 10 minutes we remove the dilator. After sterilization, we insert the lighting pencil case (c) (fig. 4) into the handle, press the power button (3), irrigate the dilator with saline and introduce it into the vagina of a sheep or goat with a semi-rotating movement, paying attention to the condition of the mucous membrane, the vestibule of the vagina, the vagina and the cervix uterus. With the correct insertion of the dilator into the vagina, the animal should not be worried, since the dilator is warm and the tubular shape matches the topography of the vaginal tube. The upper cutout (5) in the tubular dilator allows you to painlessly remove it from the vagina after inserting the catheter syringe into the cervical canal, and in 10-15 seconds to introduce a dose of sperm. The vaginal dilator is then subjected to sterilization by any of the methods described above.

Claims (1)

A vaginal dilator for artificial insemination of sheep and goats, comprising a tubular body made of a heat-resistant material, ending in an oblique cut and having a through cutout at the top, communicated with the body and placed at an angle to it, a handle and an illuminator in the form of a light bulb, characterized in that the tubular body and the handle connected to each other at an angle of 135°, and the illuminator is placed in the handle, equipped with a rechargeable battery and installed in the case.

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