Deep seminiferous duct for pigs

Abstract

The utility model relates to a deep seminiferous duct for pigs. The deep seminiferous duct comprises an outer tube and an inner tube, and an end head is formed at one end, extending into the outer pipe, of the inner pipe. The end head comprises a hemisphere part and a column pipe part connected with the end part of the inner pipe. The hemisphere part is formed at the free end of the column pipe part. A first through hole is formed in the top wall of the hemisphere part, and a second through hole opposite to the first through hole in the radial direction is formed in the side wall of the column pipe part. According to the utility model, the sperm discharge hole structure at the end part of the inner tube is improved, so that the situation that the pregnancy success rate is reduced due to bending of the tube body at the end part of the inner tube can be inhibited.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of livestock breeding instruments, and particularly relates to a deep insemination tube for pigs. BACKGROUND

[0002] The artificial insemination technology is a process that workers collect the semen of a boar through an instrument, detect and dilute the quality of the semen, and then inject the semen into the genital organ of an estrous sow by using an insemination tube. After the semen stored in the insemination bottle is delivered to the uterus of the sow by the insemination tube, the semen generally needs to flow under the action of gravity, so the insemination bottle needs to be positioned higher than the uterus of the sow, and the relative position needs to be maintained for a period of time to ensure the success rate of insemination.

[0003] In order to improve the work efficiency of artificial insemination and ensure the success rate, a deep insemination tube capable of extending into the uterus is designed in the prior art, which generally comprises a rigid outer tube and a soft inner tube, and the inner tube is capable of extending and retracting along the axis of the outer tube. In the initial state, one end of the inner tube is located in the lumen of the outer tube, and the other end of the inner tube can be extended out of the lumen of the outer tube during the movement of the inner tube relative to the outer tube. The other end of the inner tube is located outside the outer tube and can be maintained in a state of being located outside the lumen of the outer tube, and is used for connecting with the insemination bottle. A sponge is fixed on the outer tube, and the design purpose is to fix the outer tube outside the genital organ of the sow.

[0004] At present, the semen discharge end of the inner tube of the deep insemination tube, i.e. the end extending into the uterus, is designed as an open pipe structure. The main disadvantages are as follows: 1) the processing procedure is relatively complicated, and the burrs on the edge of the pipe need to be processed to form a smooth arc surface, which significantly restricts the production efficiency of the inner tube; 2) after the inner tube extends into the uterus of the sow, the end of the inner tube is prone to bending, which causes the semen discharge pipe to be blocked, adversely affecting the delivery of the semen and inhibiting the success rate of pregnancy. UTILITY MODEL CONTENTS

[0005] The utility model provides a deep insemination tube for pigs, which optimizes the end structure of the semen discharge end of the inner tube, and helps to inhibit the bending of the end pipe of the inner tube and the occurrence of the situation that the success rate of pregnancy is reduced.

[0006] The technical scheme adopted by the utility model to solve the technical problem is as follows: a deep insemination tube for pigs, comprising an outer tube, a sponge, an inner tube and an anti-backflow plug. The sponge is fixed on one end of the outer tube. One end of the inner tube is located outside the other end of the outer tube and matches the anti-backflow plug, so that the plug cap of the anti-backflow plug can switch between blocking the pipe opening of the inner tube and keeping the pipe opening open. The other end of the inner tube extends into the lumen of the outer tube and can be extended out of the outer tube from the pipe opening of the end of the outer tube on which the sponge is arranged.

[0007] An end head is formed at the end of the inner tube extending into the outer tube. The end head includes a hemispherical portion, and a cylindrical portion which is connected to the end of the inner tube. The hemispherical portion is formed at the free end of the cylindrical portion. A first through hole is formed on the top wall of the hemispherical portion, and a second through hole is formed on the side wall of the cylindrical portion which is opposite in the radial direction.

[0008] Optionally, a pair of second through holes are formed on the side wall of the cylindrical portion on both sides in the radial direction.

[0009] Optionally, a tapered surface portion is formed at the position where the hemispherical portion is connected to the cylindrical portion, and the outer diameter of the small-diameter end of the tapered surface portion is consistent with the outer diameter of the hemispherical portion.

[0010] Optionally, a locking sleeve is further included, which has a radial flange formed in the middle of the outer wall. The locking sleeve is sleeved on the outer tube. The two wall bodies on the locking sleeve which are distributed on both sides of the radial flange have a hollow structure formed on one wall body, so that this wall body is formed as a flexible tube wall, and the outer peripheral surface of the other wall body is formed as a tapered surface with the small-diameter end of the tapered surface facing the port of the outer tube. The wall body with the tapered surface on the locking sleeve can extend into the lumen of the outer tube, and can press and fix the inner tube at the port of the outer tube.

[0011] The beneficial effects of the utility model are: the utility model optimizes the end structure of the inner tube, improves the anti-blocking capability, helps to inhibit the situation that the semen port is excessively blocked due to the bending of the end tube of the inner tube, and is not conducive to the semen discharge, can guarantee that the success rate of pregnancy is at a high level. In addition, the optimized end structure also saves the deburring process for the semen tube port, so as to help to improve the production efficiency of the inner tube. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the local structure of the end head of the utility model.

[0013] Figure 2 It is Figure 1 It is a schematic diagram of the local enlarged structure of the position A.

[0014] Figure 3 It is a schematic diagram of the overall structure of the utility model (state one).

[0015] Figure 4 It is Figure 3 It is a schematic diagram of the local enlarged structure of the position B.

[0016] Figure 5 It is a schematic diagram of the overall structure of the utility model (state two).

[0017] Figure 6 It is a schematic diagram of the optimized structure of the end head.

[0018] In the figure: 10 outer tube; 20 sponge; 30 inner tube, 31 end, 311 hemisphere, 3111 first through hole, 312 column tube, 3121 second through hole, 313 conical surface, 314 strip-shaped groove; 40 locking sleeve; 50 anti-backflow plug. DETAILED DESCRIPTION

[0019] The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not have technical substantive significance, and do not constitute a limitation on the implementation of the utility model. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the functions and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "front", "rear", "intermediate", etc. used in the specification are only for the convenience of clear description, and do not constitute a limitation on the implementation of the utility model. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation of the utility model.

[0020] As Figures 1 to 6 shown in the figure, the deep insemination tube for pigs includes an outer tube 10, a sponge 20, an inner tube 30, a locking sleeve 40, and an anti-backflow plug 50. The sponge 20 is fixedly arranged at one end of the outer tube 10. One end of the inner tube 30 is located outside the other end of the outer tube 10 (the end away from the end where the sponge 20 is arranged) and can match the anti-backflow plug 50, so that the plug cap of the anti-backflow plug 50 can switchably block the tube opening of the inner tube 30 and make the tube opening in an open state. The other end of the inner tube 30 (i.e. the end provided with the end head 31) extends into the lumen of the outer tube 10 and can extend to the outside of the outer tube 10 from the tube opening of the outer tube 10 at the end where the sponge 20 is arranged. The foregoing structural features can refer to the prior art.

[0021] The end head 31 is formed at the end of the inner tube 30 extending into the outer tube 10. The end head 31 includes a hemisphere 311 and a column tube 312 connected to the end of the inner tube 30. The hemisphere 311 is formed at the free end of the column tube 312. The first through hole 3111 is formed on the top wall of the hemisphere 311, and the second through hole 3121 radially opposite to the first through hole 3111 is formed on the side wall of the column tube 312, i.e. the second through hole 3121 is distributed at both ends in the diameter direction (passing the axis line of the column tube 312), as shown in Figure 1 、 Figure 2The second through hole 3121 is shown in the case of two second through holes 3121 on each side. The inner tube 30 and the end head 31 are integrally formed, and the walls are relatively soft and can be elastically deformed. In other words, the inner tube 30 and the end head 31 are made of the same material as the existing inner tube 30.

[0022] A strip-shaped groove 314 is formed between two adjacent second through holes 3121 in the axial direction. The strip-shaped groove 314 can connect the outer ports of the two adjacent second through holes 3121. By providing the strip-shaped groove 314, the anti-blocking ability of the end head 31 can be improved, and the sperm discharge ability of the second through hole 3121 can be improved, so that more sperm can be discharged to the deep part of the uterus, thereby improving the success rate of insemination.

[0023] When the inner tube 30 moves axially relative to the outer tube 10, the end head 31 can be switched to retract into the lumen of the outer tube 10 or extend to the outside of the outer tube 10.

[0024] A tapered surface 313 is formed at the position where the semispherical part 311 connects with the cylindrical part 312, and the small-diameter end outer diameter of the tapered surface 313 is consistent with the outer diameter of the semispherical part 311. The large-diameter end outer diameter of the tapered surface 313 is consistent with the outer diameter of the cylindrical part 312. The inner diameter of the inner tube 30, the inner diameter of the cylindrical part 312, and the inner diameter of the semispherical part 311 can be substantially the same.

[0025] After the tapered surface 313 is provided between the cylindrical part 312 and the semispherical part 311, a gap can be formed between the outer wall surface of the end head 31 and the inner wall of the uterus, thereby improving the anti-blocking ability of the end head 31 and the conductivity of the second through hole 3121, and improving the sperm discharge ability, so that a large amount of sperm can be discharged to the deep part of the uterus and gathered towards the end head position of the semispherical part 311, thereby improving the success rate of insemination.

[0026] A radial flange is formed in the middle of the outer wall of the locking sleeve 40. The locking sleeve 40 is sleeved on the outer tube 30 and corresponds to the end of the outer tube 10 without the sponge 20. Two wall bodies distributed on both sides of the radial flange on the locking sleeve 40 are formed, one of which is formed with a hollow structure and forms a soft tube wall, and the other of which is formed with a tapered surface and the small-diameter end of the tapered surface faces the port of the outer tube 10. The one part of the locking sleeve 40 formed with the tapered surface can extend into the lumen of the outer tube 10 and can press and fix the inner tube 30 at the port of the outer tube 10.

[0027] The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. The present application can be improved in many aspects without departing from the general idea, and the above-mentioned embodiments can be modified or changed by those skilled in the art without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical idea disclosed by the present application should be covered by the claims of the present application.

Claims

1. A deep intrauterine insemination tube for pigs, comprising an outer tube (10), a sponge body (20), an inner tube (30) and an anti-backflow plug (50); the sponge body (20) is fixedly arranged at one end of the outer tube (10); one end of the inner tube (30) is opposite to the other end of the outer tube (10) and is matched with the anti-backflow plug (50); the other end of the inner tube (30) extends into the lumen of the outer tube (10); characterized in that: An end head (31) is formed at the end of the inner tube (30) extending into the outer tube (10); the end head (31) comprises a hemispherical part (311) and a cylindrical part (312) connected to the end of the inner tube (30); the hemispherical part (311) is formed at the free end of the cylindrical part (312); a first through hole (3111) is formed on the top wall of the hemispherical part (311), and a pair of second through holes (3121) are formed on the side wall of the cylindrical part (312) and opposite in the radial direction.

2. The deep teat infusor according to claim 1, wherein: A pair of second through holes (3121) are formed on the side wall of the cylindrical part (312) and opposite in the radial direction.

3. A deep teat cannula for pigs according to claim 2, characterised in that: A tapered surface part (313) with tapered outer wall is formed at the position where the hemispherical part (311) and the cylindrical part (312) are connected, and the outer diameter of the small-diameter end of the tapered surface part (313) is consistent with the outer diameter of the hemispherical part (311).

4. The deep teat cannula according to claim 3, characterized in that: A strip-shaped groove (314) is formed between the two second through holes (3121) adjacent in the axial direction; the strip-shaped groove (314) can connect the outer ports of the two adjacent second through holes (3121).

5. The deep teat injector of claim 1, wherein: A tapered surface part (313) with tapered outer wall is formed at the position where the hemispherical part (311) and the cylindrical part (312) are connected, and the outer diameter of the small-diameter end of the tapered surface part (313) is consistent with the outer diameter of the hemispherical part (311).

6. The deep teat injector of claim 1, wherein: Further comprising a locking sleeve (40) with a radial flange formed in the middle of the outer wall; the locking sleeve (40) is sleeved on the outer tube (30); on the locking sleeve (40), the two wall bodies distributed on both sides of the radial flange are formed, one wall body is formed into a hollow structure, and the other wall body is formed into a tapered surface with the small-diameter end of the tapered surface facing the port of the outer tube (10); one wall body of the locking sleeve (40) with a tapered surface can extend into the lumen of the outer tube (10), and can press and fix the inner tube (30) at the port of the outer tube (10).

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