Anti-pollution animal embryo transfer device

Abstract

The utility model discloses an anti-pollution animal embryo transfer device. The anti-pollution animal embryo transfer device comprises a hose and a Barster suction tube, a filtering structure is arranged between the hose and the Barster suction pipe; the filtering structure comprises a filtering disc, filtering filler is arranged in the filtering disc, expansion pipes are arranged at the two ends of the filtering disc, connecting pipes are arranged at the two ends of each expansion pipe, one connecting pipe is in sealed connection with the hose, and the other connecting pipe is in sealed connection with the Barster suction pipe; the end, away from the Barster suction tube, of the hose is detachably connected with a mouth suction tube, the mouth suction tube is a soft tube, a degreasing cotton ball is arranged in the mouth suction tube, and a mouth suction part is arranged at the end of the mouth suction tube; and a pressure adjusting structure is arranged between the mouth suction pipe and the hose. According to the utility model, bacteria, saliva and other impurities carried in the mouth can be blocked when the embryo tissue is sucked by the mouth, so that the embryo is prevented from being polluted; the pressure adjusting assembly is arranged, the effective ventilation area of the mouth suction pipe can be changed, and therefore the pressure during mouth suction is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of animal reproductive technology, specifically to a pollution-proof animal embryo transfer device. Background Technology

[0002] Animal embryo transfer is a technique that involves transplanting early embryos of a female animal, or embryos obtained through in vitro fertilization, embryo splitting, or cloning, into the reproductive tract of another female animal of the same species and with similar physiological conditions, allowing them to implant and reproduce. This technique is widely used in livestock production, helping to improve animal quality and yield, and is of great significance for the breeding of superior animal breeds.

[0003] Embryo transfer devices include hand-held straws and oral straws. The hand-held straw, also known as a Buster straw, has a large hollow sac at the upper end and a thin, heat-stretched tube at the lower end. In practical applications, hand-held straws are very difficult to control in terms of force, making it impossible to precisely position the embryo within the straw during transfer. Therefore, oral straws are relatively easier to control. However, in existing technologies, the air blown out by the oral straw contains bacteria from the human mouth, which can contaminate the embryo tissue, indicating room for improvement. Utility Model Content

[0004] This invention aims to solve the technical problems mentioned above, such as the difficulty in adjusting the pressure of hand-held straws and the potential for contamination of embryonic tissue by oral straws, by providing a contamination-proof animal embryo transfer device.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a pollution-proof animal embryo transfer device, including a flexible tube and a buster pipette; a filter structure is provided between the flexible tube and the buster pipette; the filter structure includes a filter disc, a filter filler is provided in the filter disc, an expansion tube is provided at both ends of the filter disc, and a connecting tube is provided at both ends of the expansion tube, one of the connecting tubes being sealed to the flexible tube and the other connecting tube being sealed to the buster pipette;

[0006] The end of the flexible tube away from the Buster straw is detachably connected to a mouth straw, which is a soft tube containing a cotton ball and has a suction portion at its end. A pressure regulating structure is provided between the mouth straw and the flexible tube. The pressure regulating structure includes a rigid tube at the end of the flexible tube, a threaded neck at the end of the rigid tube away from the flexible tube, and several notches along the circumference of the threaded neck. The outer diameter of the threaded neck gradually decreases at the end away from the rigid tube. A locking nut is threadedly connected to the outer side of the threaded neck, and the inner diameter of the locking nut gradually decreases at the end away from the threaded neck.

[0007] Furthermore, the inner diameter of the connecting pipe is smaller than that of the expansion pipe.

[0008] Furthermore, a sealing ring is provided on the outer side of the end of the connecting tube away from the expansion tube, and the sealing ring enters the hose and the buster straw respectively; the buster straw is a glass tube, and a section of soft tube is fixedly connected to the end near the connecting tube.

[0009] Furthermore, the inner diameter of the straw gradually increases from one end near the soft tube to the other end.

[0010] Furthermore, a float is provided inside the buster straw, and the diameter of the float is larger than the inner diameter of the connecting tube.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] It is equipped with degreased cotton balls and filter media, which can block bacteria, saliva and other impurities carried in the breath when suctioning embryonic tissue, so as to avoid contaminating the embryo; it is equipped with a float ball that can block the front of the filter plate, limit the movement distance of the embryo, and prevent the embryo from moving upward beyond the safe range when the pressure is too high, thus protecting the embryo.

[0013] It is equipped with a pressure regulating component, which can change the effective ventilation area of ​​the mouth suction tube, thereby adjusting the pressure during mouth suction and making it easier to control factors such as the speed and position of embryo entry. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the filter structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the planar structure of the straw of this utility model.

[0017] Figure 4 This is a schematic diagram of the planar structure of the Buster straw of this utility model.

[0018] As shown in the figure: 1. Hose, 2. Buster straw, 3. Filter disc, 4. Expansion tube, 5. Connecting tube, 6. Sealing ring, 7. Mouth straw, 8. Mouth suction part, 9. Rigid tube, 10. Threaded neck, 11. Notch, 12. Locking nut, 13. Float ball, 14. Degreased cotton ball. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Example 1, in conjunction with Appendix Figure 1 A contamination-resistant animal embryo transfer device includes a flexible tube 1 and a buster pipette 2; the buster pipette 2 has a thin and long end for easy aspiration of embryonic tissue and for convenient transfer; the flexible tube 1 serves as the overall connector and can be bent.

[0021] Combined with appendix Figure 1 , 2 A filter structure is provided between the hose 1 and the buster straw 2; the filter structure includes a filter disc 3, in which filter packing is provided, and the filter packing can be set as a micron-sized filter membrane; both ends of the filter disc 3 are provided with expansion tubes 4, and both ends of the expansion tubes 4 are provided with connecting tubes 5, the inner diameter of the connecting tubes 5 being smaller than that of the expansion tubes 4; thereby increasing the filtration area of ​​the filter structure, allowing more gas to pass through, and avoiding a significant increase in blowing and sucking pressure.

[0022] Combined with appendix Figure 1 , 2 One of the connecting tubes 5 is sealed to the hose 1, and the other connecting tube 5 is sealed to the buster straw 2. Each connecting tube 5 has a sealing ring 6 on its outer side away from the expansion tube 4. The sealing ring 6 enters the hose 1 and the buster straw 2 respectively. The buster straw 2 is a glass tube, and a section of soft tube is fixedly connected to one end near the connecting tube 5. Through the entry of the sealing ring 6, the soft tubes at the ends of the hose 1 and the buster straw 2 can be deformed and lifted by the sealing ring 6, reducing gaps and achieving a good sealing effect.

[0023] Combined with appendix Figure 1 , 3 The end of the hose 1 away from the buster straw 2 is detachably connected to a mouth straw 7. The mouth straw 7 is a soft tube and contains a degreased cotton ball 14, which can block saliva carried in the breath. The inner diameter of the mouth straw 7 gradually increases from one end near the hose 1 to the other end, which can reduce the path area of ​​the air and increase the pressure. The mouth straw 7 has a mouth suction part 8 at the end for easy mouth suction operation.

[0024] Combined with appendix Figure 1 , 4 A pressure regulating structure is provided between the straw 7 and the hose 1. The pressure regulating structure includes a rigid tube 9 at the end of the hose 1. The rigid tube 9 is made of plastic. The end of the rigid tube 9 away from the hose 1 has a threaded neck 10. The threaded neck 10 has several notches 11 along its circumference. The outer diameter of the threaded neck 10 away from the rigid tube 9 gradually decreases. A locking nut 12 is threadedly connected to the outer side of the threaded neck 10. The inner diameter of the locking nut 12 away from the threaded neck 10 gradually decreases. Thus, when the locking nut 12 moves towards the rigid tube 9, its smaller inner diameter end gradually tightens the smaller outer diameter end of the threaded neck 10 during the movement. The notches 11 provide deformation space for it. Thus, the end of the threaded neck 10 will squeeze the straw 7 during the tightening process. Since the straw 7 is a soft tube, it will deform and fold inward when squeezed, reducing the path area through which the air is blown, thereby regulating the pressure.

[0025] Combined with appendix Figure 1 , 4The Buster straw 2 has a float 13 that moves inside. The diameter of the float 13 is larger than the inner diameter of the connecting tube 5. When the float 13 is inhaled, it is sucked in the direction of the connecting tube 5, and the embryo moves along with it until it blocks the end of the connecting tube 5. At this point, it can no longer inhale, so the embryo will no longer move upward. This restricts the upward movement space of the embryo and can control it within a part of the space of the Buster straw.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A contamination-resistant animal embryo transfer device, comprising a flexible tube (1) and a buster pipette (2); characterized in that: A filter structure is provided between the hose (1) and the buster straw (2); the filter structure includes a filter disc (3), the filter disc (3) is provided with filter filler, the filter disc (3) is provided with expansion tubes (4) at both ends, the expansion tubes (4) are provided with connecting tubes (5) at both ends, one of the connecting tubes (5) is sealed to the hose (1), and the other connecting tube (5) is sealed to the buster straw (2); The end of the flexible tube (1) away from the buster straw (2) is detachably connected to a mouth straw (7). The mouth straw (7) is a soft tube and contains a degreased cotton ball (14). The mouth straw (7) has a mouth suction part (8) at its end. A pressure regulating structure is provided between the mouth straw (7) and the flexible tube (1). The pressure regulating structure includes a hard tube (9) at the end of the flexible tube (1). The end of the hard tube (9) away from the flexible tube (1) is provided with a threaded neck (10). The threaded neck (10) has several notches (11) along its circumference. The outer diameter of the threaded neck (10) away from the hard tube (9) gradually decreases. A locking nut (12) is threadedly connected to the outside of the threaded neck (10). The inner diameter of the locking nut (12) away from the threaded neck (10) gradually decreases.

2. The pollution-resistant animal embryo transfer device according to claim 1, characterized in that: The inner diameter of the connecting pipe (5) is smaller than that of the expansion pipe (4).

3. The pollution-resistant animal embryo transfer device according to claim 1, characterized in that: The connecting tube (5) is provided with a sealing ring (6) on the outer side of the end away from the expansion tube (4). The sealing ring (6) enters the hose (1) and the buster straw (2) respectively. The buster straw (2) is a glass tube, and a section of soft tube is fixedly connected to the end near the connecting tube (5).

4. The pollution-resistant animal embryo transfer device according to claim 1, characterized in that: The inner diameter of the straw (7) gradually increases from one end near the hose (1) to the other end.

5. The pollution-resistant animal embryo transfer device according to claim 1, characterized in that: A float (13) is provided inside the buster straw (2), and the diameter of the float (13) is larger than the inner diameter of the connecting tube (5).

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