Anti-reflux artificial fertilization tube

By introducing anti-backflow components into the artificial insemination tube, including a kit, an anti-overflow ring, and an anti-overflow sheet, the problem of semen backflow is solved, improving the success rate and effectiveness of insemination and achieving stable retention of semen in the uterus.

CN223473845UActive Publication Date: 2025-10-28THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE
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Patent Information

Application Number
CN202422036276.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-10-28
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

Existing artificial insemination tubes are prone to semen backflow during use, resulting in poor fertilization results.

Method used

An anti-backflow artificial insemination tube was designed, including a syringe, a catheter, and an anti-backflow assembly. The anti-backflow assembly consists of a kit, an anti-overflow ring, and an anti-overflow plate. The syringe and catheter are fixed by a connecting groove and a plug on the kit. The anti-overflow ring is pressed against the cervix, and the anti-overflow plate is fixed in the middle groove to prevent semen backflow.

Benefits of technology

It effectively prevents semen backflow, improving the success rate and effectiveness of insemination. It is easy to use and the syringe can be removed separately, ensuring that the catheter and anti-backflow component remain in the vagina and maintain the stable retention of semen in the uterus.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-reflux artificial fertilization tube, which comprises an injector and a catheter, the injector is composed of a push rod and a shell, the push rod is inserted into the shell, a piston is fixed at the tail end of the push rod and is in sliding fit with the shell, and at least one hole is formed in the catheter for seminal fluid to flow out; an anti-backflow assembly is additionally arranged between the injector and the guide pipe and comprises an external member, a first connecting groove is formed in one side of the external member, a first plug is fixed to one end of the shell, and the injector and the anti-backflow assembly are fixed by inserting the first plug into the first connecting groove. A first connecting groove is formed in one side of the sleeve piece, a second connecting groove is formed in the other side of the sleeve piece, the guide pipe is inserted into the second connecting groove to achieve fixation of the guide pipe and the backflow preventing assembly, the second connecting groove is communicated with the first connecting groove through a middle groove, an anti-overflow ring is fixed to the sleeve piece, and at least two anti-overflow pieces are fixed in the middle groove.
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Description

Technical Field

[0001] This utility model relates to the field of medical tools, specifically an anti-backflow artificial insemination tube. Background Technology

[0002] Artificial insemination tubes are a commonly used tool in assisted reproductive technology. They allow sperm to be delivered to a woman's uterus without sexual intercourse.

[0003] Existing artificial insemination tubes often experience semen backflow during use, resulting in poor artificial insemination outcomes. Utility Model Content

[0004] The purpose of this invention is to provide an anti-backflow artificial insemination tube to overcome the above-mentioned defects in the prior art.

[0005] According to the present invention, an anti-backflow artificial insemination tube includes a syringe and a catheter. The syringe consists of a plunger and a housing. The plunger is inserted into the housing. A piston is fixed at the end of the plunger and slides in cooperation with the housing. The catheter has at least one hole for the outflow of semen.

[0006] An anti-backflow assembly is installed between the syringe and the catheter. The anti-backflow assembly includes a kit. A first connecting slot is opened on one side of the kit, and a first plug is fixed to one end of the outer shell. The first plug is inserted into the first connecting slot to fix the syringe and the anti-backflow assembly. A second connecting slot is opened on the other side of the kit, and the catheter is inserted into the second connecting slot to fix the catheter and the anti-backflow assembly. The second connecting slot is connected to the first connecting slot through an intermediate slot. An anti-overflow ring is fixed on the kit, and at least two anti-overflow plates are fixed in the intermediate slot.

[0007] Preferably, the anti-overflow sheet is made of an elastic material.

[0008] Preferably, a pull cord is fixed to the kit.

[0009] Preferably, a connecting ring is fixed in the second connecting groove, and an annular groove with a similar shape to the connecting ring is formed on the conduit.

[0010] Preferably, the connecting ring has a certain degree of elasticity.

[0011] The beneficial effects of the utility model are:

[0012] 1. Includes a syringe and a catheter, with an anti-backflow component installed between the syringe and the catheter to effectively prevent semen backflow.

[0013] 2. The anti-backflow component includes a kit with a central groove inside, in which at least two anti-overflow plates are fixed to further prevent semen backflow.

[0014] 3. The syringe, catheter, and anti-backflow component are detachable from each other, making them convenient to use. During insemination, the syringe can be removed separately while the catheter and anti-backflow component are kept separately to ensure better insemination results. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a disassembly diagram of the present invention;

[0019] Figure 5 This is a first visual diagram of the anti-overflow ring.

[0020] Figure 6 This is a second visual diagram of the anti-overflow ring.

[0021] In the diagram: 11. Push rod; 12. Housing; 13. Pull rope; 14. Anti-overflow ring; 15. Conduit; 16. Hole; 17. Kit; 18. Connecting ring; 19. Connecting slot 1; 20. Connecting slot 2; 21. Plug 1; 22. Ring groove; 23. Anti-overflow plate; 24. Intermediate groove; 25. Piston. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one type of anti-backflow artificial insemination tube or several specific implementations of this utility model, and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up / down and left / right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human errors. The specific features of this anti-backflow artificial insemination tube are described in detail below:

[0023] Reference Figures 1-6 According to an embodiment of the present invention, an anti-backflow artificial insemination tube includes a syringe and a catheter 15. The syringe consists of a push rod 11 and a housing 12. The push rod 11 is inserted into the housing 12. A piston 25 is fixed at the end of the push rod 11 and slides in cooperation with the housing 12. The catheter 15 has at least one hole 16 for the outflow of semen.

[0024] First, the semen is drawn up using the syringe. Then, the catheter 15 is manually inserted into the uterus. By pushing the plunger 11, the semen in the syringe is pushed into the catheter 15 and finally flows into the uterus.

[0025] However, semen backflow often occurs during use. To solve this problem, an anti-backflow component is installed between the syringe and the catheter 15.

[0026] Specifically, the anti-backflow component includes a kit 17. A first connecting slot 19 is provided on one side of the kit 17, and a first plug 21 is fixed to one end of the outer shell 12. The first plug 21 is inserted into the first connecting slot 19 to fix the syringe to the anti-backflow component. A second connecting slot 20 is provided on the other side of the kit 17, and the catheter 15 is inserted into the second connecting slot 20 to fix the catheter 15 to the anti-backflow component. The second connecting slot 20 and the first connecting slot 19 are connected through an intermediate slot 24. An anti-overflow ring 14 is fixed on the kit 17. The anti-overflow ring 14 is used to press against the cervix to prevent semen from flowing back into the uterus.

[0027] Furthermore, the anti-overflow ring 14 is made of an elastic material to prevent damage to the uterus;

[0028] Furthermore, to prevent semen from flowing back from the kit 17, at least two anti-overflow tabs 23 are fixed in the intermediate groove 24. The anti-overflow tabs 23 are made of elastic material and will block the semen from flowing back. When the syringe is connected to the anti-backflow assembly, the syringe head can push each of the anti-overflow tabs 23 and eventually insert into the catheter 15.

[0029] In addition, in order to ensure that the semen remains stably in the uterus, it is considered to leave the catheter 15 and the anti-backflow component in the vagina for a period of time. Specifically, after assembling the syringe, the anti-backflow component and the catheter 15, insert the syringe, the anti-backflow component and the catheter 15 into the vagina. The catheter 15 enters the uterus and presses against the cervix. After injecting the semen into the uterus with the syringe, manually hold the kit 17 with tweezers and pull out the syringe with the other hand. At this time, the catheter 15 and the anti-backflow component remain in the vagina, and each of the anti-overflow plates 23 is reset to seal the intermediate groove 24 to a certain extent.

[0030] To facilitate the removal of the anti-backflow component and the catheter 15, a pull rope 13 is fixed to the kit 17. During use, one end of the pull rope 13 is always kept outside the vagina, and the pull rope 13 can be manually pulled to pull the anti-backflow component and the catheter 15 out of the vagina.

[0031] In addition, to ensure a certain connection strength between the anti-backflow component and the conduit 15, a connecting ring 18 is fixed in the second connecting groove 20, and an annular groove 22 with a similar shape to the connecting ring 18 is opened on the conduit 15. The connecting ring 18 has a certain elasticity, so that a certain force is required when the conduit 15 is pulled out from the second connecting groove 20.

[0032] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. An anti-backflow artificial insemination tube, comprising a syringe and a catheter (15), the syringe consisting of a plunger (11) and a housing (12), the plunger (11) being inserted into the housing (12), a piston (25) fixed at the end of the plunger (11) and slidingly engaging with the housing (12), and the catheter (15) having at least one hole (16) for the outflow of semen, characterized in that: An anti-backflow assembly is installed between the syringe and the catheter (15). The anti-backflow assembly includes a kit (17). A first connecting slot (19) is opened on one side of the kit (17). A first plug (21) is fixed at one end of the outer shell (12). The first plug (21) is inserted into the first connecting slot (19) to fix the syringe and the anti-backflow assembly. A second connecting slot (20) is opened on the other side of the kit (17). The catheter (15) is inserted into the second connecting slot (20) to fix the catheter (15) and the anti-backflow assembly. The second connecting slot (20) and the first connecting slot (19) are connected through an intermediate slot (24). An anti-overflow ring (14) is fixed on the kit (17). At least two anti-overflow pieces (23) are fixed in the intermediate slot (24).

2. The anti-backflow artificial insemination tube according to claim 1, characterized in that: The anti-overflow sheet (23) is made of elastic material.

3. The anti-backflow artificial insemination tube according to claim 1, characterized in that: A pull rope (13) is fixed to the kit (17).

4. The anti-backflow artificial insemination tube according to claim 1, characterized in that: A connecting ring (18) is fixed in the second connecting groove (20), and an annular groove (22) with a similar shape to the connecting ring (18) is opened on the guide tube (15).

5. The anti-backflow artificial insemination tube according to claim 4, characterized in that: The connecting ring (18) has a certain degree of elasticity.