Artificial semen deposition catheter for sheep body

Abstract

The utility model discloses an artificial semen deposition catheter for a sheep body, which is characterized by comprising an auxiliary tube and a suction head, and the suction head is connected with an injector through the auxiliary tube; one end of the auxiliary pipe is provided with a connector, and the other end of the auxiliary pipe is provided with an inserting part; the suction head is in a hollow cone shape, the inner diameter of the large end of the suction head is in interference fit with the outer diameter of the connector, and the inserting part is connected with an injector. The artificial insemination catheter for the sheep body is good in heat preservation performance, the diameter of the insemination end is small, and the artificial insemination catheter can be easily inserted into the cervix of the ewe to improve the conception rate of artificial insemination.

Description

Technical Field

[0001] The utility model relates to an artificially assisted sheep reproduction device, in particular to an artificial insemination catheter for sheep. Background Art

[0002] With the development of large-scale sheep breeding technology, artificial insemination (AI) is being used to accelerate sheep improvement, increase the utilization rate of breeding rams, and save the cost of raising large numbers of breeding rams. AI in sheep involves using a device to extract semen from a ram and then inserting it into the reproductive tract of an estrus ewe via an insemination device to achieve conception.

[0003] A commonly used insemination device typically consists of a catheter and a syringe. The catheter is long and slender, intended for insertion into the ewe's vagina and cervix, while the syringe is positioned outside the vagina to inject semen. During artificial insemination, the catheter is inserted into the ewe's vagina, which has been opened by a vaginal opener. The end of the catheter is then inserted into the cervix to inject semen. This means that only the end of the catheter comes into contact with the sheep during this procedure.

[0004] There are two commonly used insemination catheters. One is a reusable stainless steel insemination catheter. The disadvantage of this type of insemination catheter is that it increases the chance of sheep spreading diseases to each other during insemination, especially some infectious diseases transmitted through contact, such as brucellosis. In addition, the volume of the stainless steel insemination catheter is small, only 0.1ml, while a single sheep needs to be infused with 0.3ml of semen, so the semen needs to be sucked into the syringe, which increases the distance traveled by the semen and affects the quality of the semen. In addition, the thermal insulation performance of the stainless steel insemination catheter is poor, which affects sperm motility. There is also a plastic insemination catheter. Although it has good thermal insulation performance and capacity, the plastic insemination catheter is generally thicker, causing a stress response to the sheep's body, making it difficult to insert into the cervix, thereby reducing the conception rate. Utility Model Content

[0005] The utility model aims to provide an artificial insemination catheter for sheep. The artificial insemination catheter for sheep has good heat preservation performance, a small diameter of the insemination end and is replaceable, and is easy to insert into the cervix of the ewe.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An artificial insemination catheter for sheep comprises an auxiliary tube and a suction head, wherein the suction head is connected to a syringe via the auxiliary tube; the auxiliary tube is hollow and cylindrical, with a connector at one end and a plug portion at the other end; the suction head is hollow and conical, with the inner diameter of the large end of the suction head having an interference fit with the outer diameter of the connector, and the plug portion is connected to the syringe.

[0008] Preferably, the suction tip is made of transparent plastic and is provided with volume scale lines.

[0009] Preferably, the small end of the suction head is arc-shaped.

[0010] Preferably, the inner diameter of the plug-in portion matches the outer diameter of the syringe cone; and a fly edge is provided on the outer side wall of the plug-in portion.

[0011] Preferably, the connector, the plug portion and the auxiliary tube are integrally formed.

[0012] Preferably, the length of the pipette tip is 30-80 mm, the inner diameter of the small end of the pipette tip is 0.7-1.2 mm, and the inner diameter of the large end of the pipette tip is 4-4.5 mm; the wall thickness of the pipette tip is 0.4-0.6 mm; and the capacity of the pipette tip is 0.2-0.5 ml.

[0013] Preferably, the length of the auxiliary tube is 140-190 mm, the inner diameter of the auxiliary tube is 0.5-1.5 mm and the outer diameter is 4-7.5 mm; the length of the connector is 9-12 mm.

[0014] In the above technical solution, during the insemination process, only the end of the insemination catheter contacts the ewe's body. Therefore, the insemination catheter is designed to have a detachable connection structure between the suction head and the auxiliary tube, which is convenient for replacing the suction head, thereby preventing cross-infection between the sheep. Compared with the existing technology of replacing the entire insemination catheter, the cost investment can be further reduced. At the same time, the detachable connection between the suction head and the auxiliary tube can be more conveniently processed and demolded compared to the integrated insemination catheter, and the suction head can be made into a cone shape, so that the small end of the suction head is inserted into the cervical opening as the semen injection port, and the small end of the suction head gradually transitions to the side of the large end of the suction head, thereby avoiding the insemination catheter in the existing technology causing a stress response to the sheep's body, thereby affecting the insemination process and the quality of insemination.

[0015] Volume graduations are located on the side of the tip, allowing semen to be drawn directly into the tip, shortening the distance it travels during the injection process. After semen is drawn, the tip is inserted into the sheep for injection, shortening the time the semen is exposed to air and utilizing the sheep's body temperature to insulate the semen within the tip, further ensuring semen quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the suction head of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the auxiliary pipe of the utility model.

[0019] In the figure, 1 is the auxiliary tube; 2 is the suction tip; 3 is the connector; 4 is the plug-in part; 5 is the large end of the suction tip; 6 is the small end of the suction tip; 7 is the scale line; 8 is the flying edge. DETAILED DESCRIPTION

[0020] like Figures 1 to 3 As shown, an artificial insemination catheter for sheep includes an auxiliary tube 1 and a suction tip 2. The suction tip 2 is a conical hollow tubular structure, and the auxiliary tube 1 is a hollow cylindrical tube. The suction tip 2 is detachably connected to one end of the auxiliary tube 1, so that the hollow structures of the suction tip 2 and the auxiliary tube 1 are connected to form a semen injection stroke. The end of the auxiliary tube 1 away from the suction tip 2 is connected to a syringe, and the semen is pushed into the sheep's uterus through the syringe. In one embodiment, the inner diameter of the small end 6 of the suction tip 2 is 0.7-1.2mm, that is, the inner diameter can be any value among 0.7, 0.75, 0.8, 0.9...1.2mm. The inner diameter range can be a range formed by taking any two lengths as endpoints from 0.7-1.2mm. For example, it can be 0.7-0.9, 0.78-0.89, or 0.85-0.95. The inner diameter of the large end 5 of the pipette tip 2 is 4-4.5 mm. This means that the inner diameter of the large end 5 can be any value among 4, 4.1, 4.2, 4.28, ..., and 4.5 mm. The inner diameter range can be formed by taking any two lengths from 4-4.5 mm as endpoints. For example, the inner diameter can be 4.1-4.45, 4.25-4.32, or 4.3-4.48.

[0021] The auxiliary pipe 1 is provided with a connecting head 3 at one end, and the outer diameter of the connecting head 3 is in interference fit with the inner diameter of the large end 5 of the suction head 2, so that the suction head 2 and the auxiliary pipe 1 can be stably connected together, and the suction head 2 can be conveniently disassembled and replaced, thereby preventing cross infection between sheep. Compared with the prior art of replacing the whole insemination catheter, only replacing the suction head 2 can further reduce the cost investment. At the same time, the suction head 2 and the auxiliary pipe 1 are detachably connected, compared with the insemination catheter in the prior art, the suction head 2 can be more conveniently processed and demoulded, and then the suction head 2 can be made into a conical shape, so that the small end 6 of the suction head 2 can be inserted into the cervix of the sheep as a semen injection port, and the small end 6 of the suction head gradually transitions to the large end 5 of the suction head, thereby avoiding the stress reaction of the insemination catheter on the sheep in the prior art, and further affecting the insemination process and the quality of insemination. In one embodiment, the inner diameter of the auxiliary pipe 1 is 0.5-1.5mm, that is, the inner diameter of the auxiliary pipe 1 can be any one of 0.5, 0.55, 0.58, 0.6, 0.7, 0.8…1, 1.15…1.3, 1.4, 1.5mm. The inner diameter of the auxiliary pipe 1 can also be in the range formed by taking any two lengths from 0.5-1.5mm as end point values. For example, it can be 0.5-1.35, 0.58-1.15, 0.8-1.2mm, 0.95-1.05. The outer diameter of the auxiliary pipe 1 is 4-7.5mm, preferably 6.0mm.

[0022] In a preferred case, volume scale lines 3 are provided on the side wall of the suction head 2, and the semen can be directly sucked into the suction head 2, so that the travel of the semen in the injection process can be shortened. After the semen is sucked, the suction head 2 is inserted into the sheep for injection, which shortens the time of the semen exposed to the air and the body temperature of the sheep has a warming effect on the semen in the suction head, thereby further ensuring the quality of the semen. Further, the suction head 2 is made of transparent plastic, and the small end 6 of the suction head 2 is arc-shaped, which indirectly reduces the stress on the sheep. In one embodiment, the capacity of the suction head 2 is 0.2-0.5ml, preferably 0.3ml.

[0023] In a preferred case, the auxiliary pipe 1 is provided with a plug-in part 4 at the end away from the connecting head 3, and the inner diameter of the plug-in part 4 is in interference fit with the outer diameter of the cone head of the syringe, so that the auxiliary pipe 1 can be easily connected to the syringe. Further, the fly 8 is provided on the outer side wall of the plug-in part 4, so that the auxiliary pipe 1 and the syringe can be stably connected. Further, the connecting head 3 and the plug-in part 4 are integrally formed with the auxiliary pipe 1.

[0024] In one embodiment, the length of the suction head 2 is 30-80mm, preferably 62mm; the wall thickness of the suction head 2 is 0.4-0.6mm, preferably 0.5mm. The length of the auxiliary pipe 1 is 140-190mm, preferably 170mm. The length of the connecting head 3 is 9-12mm, preferably 10mm.

[0025] The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any technical solution that has not been substantially modified is protected by the present invention.

Claims

1. An artificial insemination catheter for sheep, characterized in that: The invention comprises an auxiliary tube and a pipette tip, wherein the pipette tip is made of transparent plastic and has a volume scale line on the pipette tip; the pipette tip is connected to the syringe through the auxiliary tube; the auxiliary tube is hollow and cylindrical, and a connector for detachably connecting to the pipette tip is provided at one end of the auxiliary tube, and a plug portion for connecting to the syringe is provided at the other end, and the inner diameter of the plug portion matches the outer diameter of the syringe cone; the pipette tip is hollow and conical, and the inner diameter of the large end of the pipette tip is interference fit with the outer diameter of the connector; the small end of the pipette tip is arc-shaped, the length of the pipette tip is 30-80 mm, the inner diameter of the small end of the pipette tip is 0.7-1.2 mm, and the capacity of the pipette tip is 0.2-0.5 ml; the length of the auxiliary tube is 140-190 mm.

2. The artificial insemination catheter for sheep according to claim 1, characterized in that: A flying edge is provided on the outer side wall of the plug-in portion.

3. The artificial insemination catheter for sheep according to claim 1, characterized in that: The connector, the plug portion and the auxiliary tube are integrally formed.

4. The artificial insemination catheter for sheep according to any one of claims 1 to 3, characterized in that: The inner diameter of the large end of the suction head is 4-4.5 mm; the wall thickness of the suction head is 0.4-0.6 mm.

5. The artificial insemination catheter for sheep according to claim 4, characterized in that: The inner diameter of the auxiliary tube is 0.5-1.5 mm and the outer diameter is 4-7.5 mm; the length of the connector is 9-12 mm.

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