RU193099U1 - MACHINE FOR LAPAROSCOPIC INSEMINATION OF ANIMALS - Google Patents

Abstract

The invention relates to devices for holding animals, for example sheep or goats, during artificial insemination by laparoscopic method and embryo transfer. The technical result of the proposed solution is to expand the arsenal of technical tools for endoscopic insemination of animals by creating conditions for more efficient work of personnel and eliminating the possibility of injury to the animal . To achieve the claimed technical result in the machine for laparoscopic insemination of animals, containing supporting frame (1) on wheels with vertical struts, on which the cradle (3) is mounted in the form of two rods connected by arcuate curved plates, the cradle (3) is equipped with an angular rotation unit in the vertical plane and a lift limiter mechanism (5) with latches of the initial position , clamps for the front (11) and hind (13) limbs of the animal are installed at the ends of the rods, structural changes are made. The angular rotation unit is made in the form of telescopic stops (6) of the “gas lift” type, the ends of which are connected to the cradle rods (3) and the support frame (1) using hinged fasteners, the lift limiter pedal with the latches of the cradle's initial position is located in the rear of the support frame between telescopic stops (6) .Also, on one of the rods, at least two arched plates on one side are rotatably fixed to create a mechanism for removing the animal from the cradle. An apron is mounted on one of the cradle rods ( 17) to protect from injury to the animal when it is removed from the cradle. The cradle is equipped with a latch of the thoracic section of the animal in the form of a longitudinal plate (9) between the headrest and the first chest plate of the cradle. The cradle rods in the head part are made half an angle to the cradle plane. Using the design with the proposed nodes allowed to expand the arsenal of technical means, because the proposed design of the machine provides a more reliable fixation of the animal during surgery and less injurious to the animal procedure for removing the animal from the table. This provides a more convenient and quiet operation of the operator and therefore a more efficient insemination operation. These differences allow you to expand the arsenal of technical equipment for similar operations and veterinary procedures. 4 s.p. f-ly, 6 ill.

Description

The utility model relates to devices for holding animals, for example sheep or goats, during artificial insemination by laparoscopic method and embryo transfer, and can be used for reliable fixation of an animal during operations and veterinary processing on livestock farms and in the field.

The prior art various machines for fixing sheep and other small animals during surgical interventions and other medical manipulations with them (ed. Certificate SU 149539 "Machine for the artificial insemination of animals, such as sheep", ed. Certificate SU 107683 "Machine for fixing sheep and other small animals ”, author certificate SU 592415“ Machine for artificial insemination of sheep ”, SU 1611335“ Machine for processing sheep ”, CN 108056842“ Frame for sheep ”).

Some of these devices have a complex structure, others do not provide reliable fixation of the animal in a comfortable position and have an insufficient range of adjustments to the position of the body in space.

Closest to the claimed device is the "Operating frame for endoscopic insemination and transplantation of sheep embryos" described in the patent of the People's Republic of China CN 205729556 (priority from 01/18/2016).

A device for the operation of endoscopic insemination and transfer of sheep embryos contains a chassis equipped with wheels and a retaining frame, the upper part of one end of the chassis being provided with two supporting vertical rods arranged symmetrically on which the main frame body is mounted for fixing the sheep using articulated joints with the possibility of rotation of the frame in the vertical plane. The other end of the chassis is connected to the frame body with a telescopic rod on hinged mounts, equipped with holes with locking levers for fixing the inclined position of the sheep at various angles.

The frame for fixing sheep contains arched support plates for the trunk and neck and fixing nodes for the front and rear legs. The tail of the frame with locking devices for the hind legs of the sheep is made detachable, telescopically retractable with locking bolts to fit the frame to the size of a particular animal.

The fixing device for the front legs is in the form of a metal hook, and the second fixing device for the hind legs contains a U-shaped bracket, a positioning plate and an S-shaped locking lever for securely fixing the legs.

The known device does not provide sufficient strength to fix the animal during the procedure, which reduces the efficiency of the operator and does not exclude the possibility of injury to the animal.

The technical result of the proposed solution is to expand the arsenal of technical tools for endoscopic insemination of animals by creating conditions for more efficient work of personnel and eliminating the possibility of injury to the animal.

To achieve the claimed technical result in a machine for laparoscopic insemination of animals, containing a support frame on wheels with vertical struts, on which a cradle is mounted in the form of two rods connected by arcuate curved plates, the cradle is equipped with an angular rotation unit in a vertical plane and a lifting limiter mechanism with latches of the original positions, the ends of the rods are fixed for the front and rear limbs of the animal, the following design changes are made:

• The unit of angular rotation is made in the form of telescopic stops of the “gas lift” type, the ends of which are connected to the cradle rods and the support frame using hinged fasteners, the lift limiter pedal with the latches of the cradle's initial position is located in the rear of the support frame between the telescopic stops;

• On one of the rods, at least two arched plates on one side are rotatably fixed to create a mechanism for removing the animal from the cradle;

• An apron is mounted on one of the cradle rods to protect the animal from injury when it is removed from the cradle;

• The cradle is equipped with a fixator of the thoracic section of the animal in the form of a longitudinal plate between the headrest and the first chest plate of the cradle;

• Cradle rods in the head part are made at an angle to the cradle plane.

Using the design with the proposed nodes allowed to expand the arsenal of technical means, as the proposed design of the machine provides a more reliable fixation of the animal during surgery and less injurious to the animal the procedure of removal from the table. This provides a more convenient and quiet operation of the operator and therefore a more efficient insemination operation. These differences allow you to expand the arsenal of technical equipment for similar operations and veterinary procedures.

The design of the apparatus is shown in the images:

FIG. 1 - General view of the machine assembly

FIG. 2 - The structure of the support frame

FIG. 3 - Cradle structure

FIG. 4 - Cradle structure (side view)

FIG. 5 - Machine in working position

FIG. 6 - The mechanism for removing sheep from the cradle.

The proposed machine is designed to fix an animal, such as a sheep, in a supine position at an angle of 45 degrees to the floor in a head down position. In this position, the internal organs of the sheep are shifted to the chest and open access to the organs of the small pelvis, in particular to the uterus. Artificial insemination of freshly obtained or frozen sperm is carried out according to a laparoscopic technique. When performing this manipulation, the sheep is under the influence of sedatives, which are administered in a minimal dose and provide only a mild hypnotic effect, therefore the surgical table for performing this manipulation should be convenient for both the artificial insemination operator and the sheep patient.

The proposed machine for laparoscopic insemination (Fig. 1) contains a support frame (1) mounted on wheels. The rear wheels of the frame are equipped with stops to prevent the machine from moving during operation. At one end of the frame (1), two vertical supports (2) are rigidly fixed (Fig. 2), on which a cradle (3) is mounted on articulated joints for fixing the sheep with the possibility of rotation in the vertical plane (Fig. 5). At the other end of the frame (1) two vertical posts (4) are rigidly fixed, on which the cradle (3) rests in a horizontal position (Fig. 2), as well as a cradle lift limiter mechanism (5) and two lifting mechanisms in the form of telescopic stops (6) of the "gas lift" type, which are connected to the cradle body (3) by other hinged fasteners (Fig. 1, 5).

The cradle (3) (Fig. 3, 4) for fixing a sheep is a frame consisting of two parallel metal profile rods (7), bent so that the angle of inclination of the rods in the head part of the cradle relative to its main plane is 20 °, and the distance between the rods is less than in its central part. The rods are connected by transverse arcuate metal plates (8), which serve as a support for the body of the sheep. The transverse arches are located at different heights, selected experimentally, and have a latch of the thoracic spine - a special longitudinal plate (9) in the region of the sheep’s shoulder blades to prevent displacement of the animal when the cradle is tilted. In the head part, the rods are connected by an arc-shaped headrest (10).

In the head part of the cradle on the rods (7), the front limb clamps are mounted in the form of metal hooks (11). The rear part of the cradle, consisting of profile metal rods (12) with latches for hind limbs fixed on them (13), is made in the form of a retractable telescopic system with the ability to move inside the rods (7) to allow the fixation of animals of different lengths. The latches for the hind limbs (13) are U-shaped brackets mounted on vertical rods at an angle to the axis of the rods (12).

Two vertical uprights (14) are rigidly fixed to the rods (7), which together with the uprights (4) of the frame (1) support the rear part of the cradle in a horizontal position. The cradle is fixed in horizontal position and is carried out using the mechanism of the lift limiter (5) (Fig. 1, 5, 6), consisting of two vertical posts (15) connected by a horizontal rod with a mechanical pedal (18) fixed to it. At the end of the uprights (14) and (15), lift limiters (16) are fixed in the form of angles that mesh with each other and hold the cradle in a horizontal position.

The cradle has a mechanism for removing a sheep from the cradle (Fig. 6). For this, two central transverse arcs (8) from one edge are provided with loops with the ability to rotate about the axis of one of the rods (7). Opposite edges of the arcs are connected by a corner for structural rigidity, which is equipped with a handle for easy handling. One side of the cradle is equipped with a special apron (17) to protect the skin of the animal when it is removed from the table (Fig. 3, 6).

The machine operates as follows.

1 - fixing the sheep in a dorsal position on the table and fixing the chest and pelvic limbs with braid and double-sided rollers;

2 - a table with a sheep rolls into the work area, where the endoscope and additional equipment are located;

3 - the wheels are put on the stopper to ensure the immobility of the table;

4 - by pressing the mechanical pedal, the lift limiter mechanism is released, and the sheep gradually lowers its head down;

5 - a puncture of the abdominal cavity at two points using a trocar;

6 - carbon dioxide is pumped into the abdominal cavity;

7 - an endoscope is placed in one conductor to visualize the uterus, and in another syringe-pipette with sperm;

8 - under visual control is the body of the uterus and uterine horn, two punctures are made and a sperm dose is administered;

9 - trocars are removed;

10 - a surgical wound site is treated with an antiseptic;

11 - the sheep is lowered to a horizontal position;

12 - the table is removed from the stopper;

13 - the animal on the table is transported to the postoperative cage and is removed from the table using the removal mechanism.

Distinctive features of the proposed design:

1. The animal is attached to the pelvic limbs with belts on the rollers and is thus fixed on the machine. In the proposed design, the transverse arches are located at different heights, selected empirically, and have a special clamp of the thoracic spine. The angle of the cradle in the head relative to its main plane is 20 °. Due to these design features, when a sheep is lowered head down, its displacement does not occur. Thus, the operation becomes safe both for the sheep, which is firmly fixed, and for the artificial insemination operator.

2. The sheep lifting mechanism has gas-lift shock absorbers, due to which the cradle runs smoothly, and the sheep are not afraid during this manipulation.

3. The machine has a mechanism for removing sheep from the cradle and a special apron on one side, the presence of which protects the skin of the sheep from injury when removing it from the table.

4. The height of the table is optimally matched to the ability of the operator to work on artificial insemination in a sitting position, which is important to ensure work when inseminating more than 300 animals in one working day.

Thus, the proposed design of the machine provides a more reliable fixation of the animal during surgery and less injurious to the animal procedure for removing the animal from the table. This provides a more convenient and quiet operation of the operator and therefore a more efficient insemination operation. These differences allow you to expand the arsenal of technical equipment for similar surgical procedures.

Claims (5)

1. A machine for laparoscopic insemination of animals, containing a support frame on wheels with vertical struts, on which a cradle is mounted in the form of two rods connected by arcuate curved plates, the cradle is equipped with an angular rotation unit in the vertical plane and a lifting limiter mechanism with clamps of the initial position, at the ends rods mounted clamps for the front and rear limbs of the animal, characterized in that the node of the angular rotation is made in the form of telescopic stops of the type "gas lift", con With the help of hinged fasteners connected to the cradle rods and the supporting frame, the lift limiter pedal with the latches of the cradle's initial position is located in the rear part of the supporting frame between the telescopic stops. 2. The machine according to p. 1, characterized in that on one of the rods, at least two arched plates on one side are fixed with the possibility of rotation to create a mechanism for removing the animal from the cradle. 3. The machine according to claim 1, characterized in that an apron is mounted on one of the cradle rods to protect the animal from injury when it is removed from the cradle. 4. The machine according to p. 1, characterized in that the cradle is equipped with a latch of the thoracic section of the animal in the form of a longitudinal plate between the headrest and the first chest plate of the cradle. 5. The machine according to p. 1, characterized in that the cradle rods in the head part are made at an angle to the main cradle plane.

Images