Artificial insemination transplantation device for reproductive medicine

Abstract

The utility model relates to the technical field of reproductive medicine, in particular to an artificial insemination transplantation device for reproductive medicine, which comprises an injector, the injector is slidably connected with a first support cylinder, one end of the first support cylinder is fixedly connected with an expansion component, the injector is communicated with a guide component, and a limiting component is arranged on the surface of the first support cylinder; the expansion assembly comprises a second supporting cylinder and a first rotating cylinder, the first rotating cylinder is provided with a rotating ring, the first rotating cylinder is fixedly connected with a second rotating cylinder, the second supporting cylinder is fixedly connected with a guiding ring, a plurality of guiding grooves are formed in the guiding ring, the second rotating cylinder is rotationally connected with a plurality of expansion pieces, and the bottoms of the expansion pieces are fixedly connected with blocking pieces. The second supporting cylinder is hinged to a plurality of arc-shaped opening pieces. According to the female genital tract dilator, through cooperation of the guide ring, the dilation piece and the arc-shaped dilation piece, the dilation degree of the female genital tract dilator can be adjusted according to the actual situation at different positions in the female genital tract, and therefore a doctor can conveniently conduct artificial insemination operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of reproductive medical technology, and specifically relates to an artificial insemination implantation device for reproductive medicine. BACKGROUND

[0002] Artificial insemination is a relatively simple assisted reproductive method, which injects the optimized semen or in-vitro separated sperm suspension into the female reproductive tract (usually the uterine cavity or cervical canal) through artificial means to help women get pregnant. This process is similar to the mechanism of natural conception, both of which are in-vivo combination of sperm and egg to form an embryo and migrate to the uterine cavity for implantation. Artificial insemination is mainly used to treat infertility caused by male factors (such as weak sperm, sexual dysfunction, etc.) and some female factors (such as cervical factors, ovulation disorders, etc.) that have not been able to get pregnant after treatment. Among them, the artificial insemination implantation device for reproductive medicine plays a very important role, and doctors usually inject high-quality male cells directly into the female uterus through the artificial insemination implantation device for reproductive medicine, without the need for complex surgical operations, reducing the physical trauma and pain of patients.

[0003] Nowadays, the artificial insemination implantation device for reproductive medicine on the market is mostly composed of a syringe and other auxiliary structures, and doctors generally need to expand the female reproductive tract for convenient observation and operation before operation. Therefore, some artificial insemination implantation devices for reproductive medicine achieve expansion by adding expansion structures, but most of them achieve expansion by lateral sliding of the expansion structure, and the expansion degree is determined by the sliding distance, which is difficult to reach the specified expansion degree at a specified position. Therefore, it is necessary to provide an artificial insemination implantation device for reproductive medicine, which can adjust the expansion degree at different positions in the female reproductive tract according to the actual situation, so as to facilitate the doctor to perform artificial insemination operation more conveniently. SUMMARY

[0004] To solve the above problems, the utility model provides an artificial insemination implantation device for reproductive medicine, which can adjust the expansion degree at different positions in the female reproductive tract according to the actual situation, so as to facilitate the doctor to perform artificial insemination operation more conveniently.

[0005] In order to achieve the above object, the technical scheme of the utility model is as follows: a device for artificial insemination and transplantation in reproductive medicine, comprising a syringe, the syringe is slidably connected with a first supporting cylinder, the syringe is located inside the first supporting cylinder, one end of the first supporting cylinder away from the syringe is fixedly connected with a rotating assembly, one end of the rotating assembly away from the first supporting cylinder is fixedly connected with an expansion assembly driven by the rotation of the rotating assembly, the syringe is connected with a guide assembly for guiding the flow of semen to the target position, the surface of the first supporting cylinder is provided with a limiting assembly for limiting the rotation of the expansion assembly, a plurality of reset assemblies for resetting the expansion assembly are arranged at the connection between the rotating assembly and the expansion assembly;

[0006] The rotating assembly comprises a first rotating cylinder and a second supporting cylinder fixedly connected to one end of the first supporting cylinder away from the syringe, the first rotating cylinder is embedded in the first supporting cylinder and the second supporting cylinder, and the first supporting cylinder and the second supporting cylinder are in rotational cooperation with the first rotating cylinder, a rotating ring is arranged around one end of the first rotating cylinder away from the second supporting cylinder, the rotating ring passes through the first supporting cylinder and extends outside the first supporting cylinder, a second rotating cylinder is coaxially fixedly connected to one end of the first rotating cylinder close to the second supporting cylinder, one end of the second rotating cylinder away from the first rotating cylinder passes through the second supporting cylinder, the second rotating cylinder is in rotational cooperation with the second supporting cylinder, and the first rotating cylinder is fixedly connected with the expansion assembly.

[0007] The technical principle of the above scheme is as follows: the semen to be injected is sucked into the syringe, which facilitates subsequent artificial insemination, the semen in the syringe is injected into the female uterine cavity through the guide assembly, and the rotating ring is rotated to drive the first rotating cylinder and the second rotating cylinder to move, when the second rotating cylinder rotates, the expansion assembly is driven to rotate together, the diameter surrounded by the expansion assembly is changed, so that the expansion of the female reproductive tract is realized, and the rotation of the first rotating cylinder is limited by the limiting assembly to ensure the stability of the expansion during the operation, and the arc-shaped expansion piece can automatically return to the original position after the operation through the reset assembly.

[0008] The above scheme has the following beneficial effects:

[0009] 1. Compared to existing artificial insemination devices that expand the female reproductive tract through lateral sliding of the expansion structure, this solution utilizes a rotating ring to drive the rotation of subsequent first and second rotating cylinders, which in turn rotate the expansion component. Simultaneously, the expansion component changes its diameter through rotation, gradually opening to expand the female reproductive tract for artificial insemination. This rotational method solves the problem of existing artificial insemination devices, which rely on lateral sliding expansion, failing to achieve a specific degree of expansion at a designated location. Therefore, this invention allows for adjustment of the expansion degree at different locations within the female reproductive tract according to actual conditions, facilitating easier artificial insemination procedures for doctors. Furthermore, the flexible and adjustable design of the expansion component, first rotating cylinder, and second rotating cylinder makes this device suitable for patients of different body types and reproductive tract conditions, enhancing its versatility and practicality in clinical application.

[0010] 2. In this solution, the design of the guiding component can accurately guide the semen to the target location in the woman's uterine cavity, reducing errors and uncertainties during artificial insemination, thereby improving the success rate of artificial insemination.

[0011] 3. In this solution, the design of the limiting component effectively restricts the unnecessary rotation of the expansion components (first rotating cylinder, second rotating cylinder, and expansion plate, etc.) during the operation, ensuring the stability and controllability of the expansion process, avoiding complications or accidents that may be caused by improper operation, and improving the safety of the operation.

[0012] Furthermore, the expansion assembly includes a guide ring, which is fixedly connected to the end of the second support cylinder away from the first support cylinder. The guide ring is arranged around the surface of the second rotating cylinder, and its diameter is smaller than that of the second support cylinder. The end of the guide ring away from the second support cylinder has several guide grooves. The end of the second rotating cylinder away from the first rotating cylinder is rotatably connected to several expansion plates corresponding to the guide grooves. The expansion plates are irregularly shaped and eccentric. All expansion plates are close to the end of the guide ring away from the second support cylinder. Each expansion plate has a baffle fixedly connected to its bottom. Each baffle corresponds to a guide groove and is located within the guide groove. The end of the second support cylinder away from the first support cylinder is hinged with several arc-shaped expansion plates. The reset assembly is located at the connection between the second support cylinder and the arc-shaped expansion plates. The arc-shaped expansion plates are all located within the movement trajectory of the expansion plates.

[0013] Beneficial effects: When the second rotating cylinder rotates, the baffle and guide groove work together to restrict the expansion plate from rotating synchronously with the second rotating cylinder, thereby causing the expansion plate to rotate around the connection point with the second rotating cylinder and push the arc-shaped expansion plate, changing the diameter enclosed by the arc-shaped expansion plate, thus realizing the expansion of the female reproductive tract; through the design of the guide ring, expansion plate and arc-shaped expansion plate, the effective expansion of the female reproductive tract is achieved by making the most of the limited space.

[0014] Further, the guide assembly includes a first guide tube and a second guide tube, one end of the first guide tube communicates with one end of the second guide tube, and the other end of the first guide tube communicates with the storage tube.

[0015] Beneficial effect: The design of the first guide tube and the second guide tube can accurately guide the semen to the target position in the uterine cavity of the female, reducing the error and uncertainty during artificial insemination, thereby improving the success rate of artificial insemination.

[0016] Further, the communication between the storage tube and the first guide tube is a threaded connection.

[0017] Beneficial effect: The threaded connection design can effectively prevent the leakage of semen during artificial insemination, and the good sealing property can prevent external impurities from entering the inside of the storage tube or the first guide tube, thereby ensuring the purity of the semen and the stability of the system.

[0018] Further, the second guide tube is fixedly connected with an arc-shaped silica gel cover at one end away from the first guide tube.

[0019] Beneficial effect: The design of the arc-shaped silica gel cover can effectively reduce the damage of the device to the uterine cavity during artificial insemination, and improve the safety.

[0020] Further, the surface of the second guide tube away from the first guide tube is provided with a plurality of through holes.

[0021] Beneficial effect: The design of the through hole can accurately inject the semen to be fertilized into the target position in the uterine cavity, thereby improving the fertilization rate.

[0022] Further, the limiting assembly includes a press-type buckle arranged on the surface of the first supporting cylinder, and the surface of the first rotating cylinder is provided with a plurality of buckle grooves corresponding to the buckle.

[0023] Beneficial effect: The combination of the press-type buckle and the buckle groove forms a double locking mechanism, so as to lock the first rotating cylinder at the target position, effectively limiting unnecessary rotation of the first rotating cylinder, the second rotating cylinder and the expansion sheet during the operation process, ensuring the stability and controllability of the expansion process, and improving the safety of the operation.

[0024] Further, the diameter of the circle surrounded by the arc-shaped expansion sheet near one end of the second supporting cylinder is greater than the diameter of the circle surrounded by the other end, and the diameter of the circle surrounded by the arc-shaped expansion sheet away from the second supporting cylinder is greater than the outer diameter of the first guide tube.

[0025] Beneficial effect: The movement of the arc-shaped expansion sheet can expand the female reproductive tract in need of artificial insemination without affecting the movement of the first guide tube.

[0026] Further, the reset assembly comprises a torsion spring arranged at the connection between the second supporting cylinder and the arc-shaped opening piece.

[0027] Beneficial effects: the design of the torsion spring can automatically adjust the arc-shaped opening piece to the corresponding opening degree according to the opening degree of the expansion piece, improving the flexibility.

[0028] Further, the blocking piece is in an arc-shaped structure.

[0029] Beneficial effects: the design of the arc-shaped structure of the blocking piece can make the movement of the expansion piece more flexible, thereby quickly realizing the opening and folding of the arc-shaped opening piece.

[0030] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole axonometric view of the artificial insemination and transplantation device for reproductive medicine according to the present application;

[0032] Figure 2 It is a whole front view of the artificial insemination and transplantation device for reproductive medicine according to the present application;

[0033] Figure 3 It is a schematic view of the torsion spring of the artificial insemination and transplantation device for reproductive medicine according to the present application;

[0034] Figure 4 It is a schematic view of the expansion assembly of the artificial insemination and transplantation device for reproductive medicine according to the present application.

[0035] The reference signs in the drawings of the specification comprise: 1, syringe; 2, first supporting cylinder; 3, rotating ring; 4, second supporting cylinder; 5, arc-shaped opening piece; 6, first guide pipe; 7, second guide pipe; 8, guide ring; 9, expansion piece; 10, buckle; 11, guide groove; 12, blocking piece; 13, first rotating cylinder; 14, second rotating cylinder; 15, torsion spring. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below in combination with the drawings, obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts are within the protection scope of the present application.

[0037] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the utility model, it is necessary to explain, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, and can be detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] The specific embodiments are further described in detail as follows:

[0040] Example 1:

[0041] As shown in the accompanying Figure 1 , Figure 2 , Figure 3 and Figure 4 : an artificial insemination device for reproductive medicine, comprising a syringe 1, the syringe 1 is slidably connected with a first supporting barrel 2, the syringe 1 is located inside the first supporting barrel 2, the first supporting barrel 2 is fixedly connected with a rotating assembly at the end away from the syringe 1, the rotating assembly is fixedly connected with an expansion assembly driven by the rotation of the rotating assembly at the end away from the first supporting barrel 2, the syringe 1 is communicated with a guide assembly for guiding the flow of semen to the target position, the surface of the first supporting barrel 2 is provided with a limiting assembly for limiting the rotation of the expansion assembly, the connecting place of the rotating assembly and the expansion assembly is provided with a reset assembly for resetting the expansion assembly.

[0042] The rotating assembly comprises a first rotating cylinder 13 and a second supporting cylinder 4 integrally formed at the end of the first supporting cylinder 2 away from the syringe 1, the first rotating cylinder 13 is embedded in the first supporting cylinder 2 and the second supporting cylinder 4 and the first supporting cylinder 2 and the second supporting cylinder 4 are in rotating cooperation with the first rotating cylinder 13, the first rotating cylinder 13 is ring-connected with a rotating ring 3 at the end away from the second supporting cylinder 4, the rotating ring 3 penetrates through the first supporting cylinder 2 and extends outside the first supporting cylinder 2, the first rotating cylinder 13 is coaxially integrally formed with a second rotating cylinder 14 at the end close to the second supporting cylinder 4, the second rotating cylinder 14 penetrates through the second supporting cylinder 4 at the end away from the first rotating cylinder 13, the second rotating cylinder 14 is in rotating cooperation with the second supporting cylinder 4, and the surface of the first rotating cylinder 13 is fixedly connected with the expanding assembly.

[0043] The expanding assembly comprises a guide ring 8, the guide ring 8 is bonded at the end of the second supporting cylinder 4 away from the first supporting cylinder 2, the guide ring 8 is sleeved on the surface of the second rotating cylinder 14, the diameter of the guide ring 8 is smaller than that of the second supporting cylinder 4, a plurality of guide grooves 11 are formed at the end of the guide ring 8 away from the second supporting cylinder 4, a plurality of expanding pieces 9 corresponding to the guide grooves 11 are rotatably connected at the end of the second rotating cylinder 14 away from the first rotating cylinder 13, the expanding pieces 9 are of a special eccentric structure, the expanding pieces 9 are all located above the guide ring 8, the bottom of each expanding piece 9 is integrally formed with a baffle 12, the baffle 12 corresponds to the guide groove 11 one by one and is located in the guide groove 11, and a plurality of arc-shaped spreading pieces 5 are hingedly connected at the end of the second supporting cylinder 4 away from the first supporting cylinder 2; the resetting assembly is located at the connection between the second supporting cylinder 4 and the arc-shaped spreading piece 5, and the arc-shaped spreading piece 5 is located in the movement track of the expanding piece 9.

[0044] The diameter of the circle surrounded by the end of the arc-shaped spreading piece 5 close to the second supporting cylinder 4 is larger than that of the circle surrounded by the other end, and the diameter of the circle surrounded by the other end is larger than the outer diameter of the first guide tube 6, so that the guide assembly can normally expand and contract during artificial insemination.

[0045] The guide assembly comprises a first guide tube 6 and a second guide tube 7, one end of the first guide tube 6 is communicated with one end of the second guide tube 7, and the other end of the first guide tube 6 is communicated with the storage tube 12; a plurality of through holes are formed in the surface of the second guide tube 7 away from the first guide tube 6; and the communication between the storage tube 12 and the first guide tube 6 is a threaded connection.

[0046] The limiting assembly comprises a buckle 10 integrally formed on the surface of the first supporting cylinder 2 in a pressing manner, a plurality of clamping grooves corresponding to the buckle 10 are formed in the surface of the first rotating cylinder 13, so that the first rotating cylinder 13 is limited at the required position, and the safety of the operation is ensured.

[0047] The resetting assembly comprises a torsion spring 15 sleeved at the connection between the second supporting cylinder 4 and the arc-shaped spreading piece 5, and the resetting assembly has the characteristics that it can automatically restore within a certain range, so as to assist in adjusting the opening degree of the arc-shaped spreading piece 5.

[0048] The specific implementation process is as follows: first, the semen that needs to be artificially inseminated is drawn into the syringe 1, and the first guide pipe 6 is connected with the syringe 1 by screwing, so as to effectively prevent the leakage of semen during artificial insemination, and the good sealing property can prevent external impurities from entering the syringe 1 or the inside of the first guide pipe 6, thereby ensuring the purity of the semen and the stability of the system; then the arc-shaped expansion piece 5 is slowly extended into the female reproductive tract, and after it reaches the specified position, the rotating ring 3 on the surface of the first support cylinder 2 is rotated in the counterclockwise direction, so that it drives the first rotating cylinder 13 inside the first support cylinder 2 to rotate, and then drives the second rotating cylinder 14 to rotate; when the second rotating cylinder 14 rotates, although it is connected with the expansion piece 9 by rotation, there is a certain friction between the two, so that the expansion piece 9 rotates with the second rotating cylinder 14, which is revolution; when the expansion piece 9 revolves, the fixed baffle 12 at the bottom of the expansion piece 9 also revolves together, but since the baffle 12 is located in the guide groove 11 and the guide ring 8 with the guide groove 11 is fixedly connected on the second support cylinder 4, when the baffle 12 revolves, the baffle 15 will be in contact and extrusion with the side wall of the guide groove 11, so that the extrusion force will be converted into the rotation of the expansion piece 9 around its connection with the second rotating cylinder 14, which is the rotation of the expansion piece 9;

[0049] And since the expansion piece 9 is eccentrically shaped, when it rotates, the expansion piece 9 will be stretched outward, and since the arc-shaped expansion piece 5 is located in its motion track and the arc-shaped expansion piece 5 is hinged with the second support cylinder 4, when the expansion piece 9 is stretched outward, it will also gradually open the arc-shaped expansion piece 5, so as to expand the specified position in the female reproductive tract to the specified degree, and press the buckle 10 to make it match with the clamping groove on the surface of the first rotating cylinder 13, so as to ensure the stability and safety of the expansion, and also facilitate the subsequent operation of the doctor; similarly, when it is necessary to reduce the expansion degree, the rotating ring 3 on the surface of the first support cylinder 2 is rotated clockwise, so as to realize the closing of the expansion piece 9, and when the expansion piece 9 is gradually closed, since the connection between the arc-shaped expansion piece 5 and the second support cylinder 4 is hinged and the connection is provided with a torsional spring 15, the arc-shaped expansion piece 5 is closed together with the closing of the expansion piece 9 under the action of the torsional spring 15, not only facilitating the adjustment of the expansion degree at any time according to the actual situation, but also further reducing the damage to the female reproductive tract when the device is taken out at the end of artificial insemination.

[0050] After the expansion is completed, the second guide tube 7 is sequentially passed through the first support tube 2 and the second support tube 4, and then reaches the uterus through the female reproductive tract, and meanwhile the syringe 1 can rotate and slide to a certain extent in the first support tube, so that the second guide tube 7 can be fine-tuned in the uterine cavity through these movements to reach the target position more accurately, and finally after the second guide tube 7 reaches the target position with a through hole at one end, the doctor pushes the syringe 1 to inject the semen in the syringe 1 into the specified position in the uterine cavity through the first guide tube 6 and the second guide tube 7 and the through hole on the surface of the second guide tube 7, and the artificial insemination is completed.

[0051] Embodiment 2:

[0052] As shown in the accompanying drawings, Figure 1 The difference from the embodiment 1 is that the second guide tube 7 is bonded with an arc-shaped silica gel cover at the end away from the first guide tube 6.

[0053] The specific implementation process is as follows: during the artificial insemination process, the doctor first needs to slowly extend the second guide tube 7 into the female uterine cavity, and then observe whether the end of the second guide tube 7 away from the first guide tube 6 reaches the target position through visual observation or through a corresponding imaging instrument (ultrasonic detector). During the entire process, the end of the second guide tube 7 away from the first guide tube 6 will inevitably collide with the uterine wall, thereby causing unnecessary damage to the female during artificial insemination. Therefore, by providing an arc-shaped silica gel cover at the end of the second guide tube 7 away from the first guide tube 6, the characteristics of silica gel (good biological properties and softness) and the design of the arc-shaped structure are utilized to further reduce the damage to the uterus when the end of the second guide tube 7 away from the first guide tube 6 collides with the uterine wall, thereby further improving the safety of the artificial insemination operation.

[0054] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those of ordinary skill in the art. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An artificial insemination and transfer device for reproductive medicine, comprising a syringe (1), characterized in that, The syringe (1) is slidably connected to the first support cylinder (2). The syringe (1) is located inside the first support cylinder (2). The first support cylinder (2) is fixedly connected to a rotating component at one end away from the syringe (1). The rotating component is fixedly connected to an expansion component driven by the rotation of the rotating component at one end away from the first support cylinder (2). The syringe (1) is connected to a guiding component for guiding the semen to the target location. The surface of the first support cylinder (2) is provided with a limiting component for restricting the rotation of the expansion component. Several reset components for resetting the expansion component are provided at the connection between the rotating component and the expansion component. The rotating assembly includes a first rotating cylinder (13) and a second support cylinder (4) fixedly connected to the end of the first support cylinder (2) away from the syringe (1). The first rotating cylinder (13) is embedded in the first support cylinder (2) and the second support cylinder (4), and both the first support cylinder (2) and the second support cylinder (4) are rotatably engaged with the first rotating cylinder (13). A rotating ring (3) is provided around the end of the first rotating cylinder (13) away from the second support cylinder (4), and the rotating ring (3) passes through the first support cylinder (2) and extends outside the first support cylinder (2). The end of the first rotating cylinder (13) close to the second support cylinder (4) is coaxially fixedly connected with the second rotating cylinder (14). The end of the second rotating cylinder (14) away from the first rotating cylinder (13) passes through the second support cylinder (4), and the second rotating cylinder (14) is rotatably engaged with the second support cylinder (4). The surface of the first rotating cylinder (13) is fixedly connected to the expansion assembly.

2. The artificial insemination and embryo transfer device for reproductive medicine according to claim 1, characterized in that, The expansion assembly includes a guide ring (8), which is fixedly connected to the end of the second support cylinder (4) away from the first support cylinder (2). The guide ring (8) is arranged around the surface of the second rotating cylinder (14). The diameter of the guide ring (8) is smaller than the diameter of the second support cylinder (4). Several guide grooves (11) are opened at the end of the guide ring (8) away from the second support cylinder (4). Several expansion pieces (9) corresponding to the guide grooves (11) are rotatably connected to the end of the second rotating cylinder (14) away from the first rotating cylinder (13). The expansion pieces (9) are irregularly shaped and eccentric. The structure is such that the expansion plates (9) are all close to the end of the guide ring (8) away from the second support cylinder (4), and the bottom of the expansion plates (9) is fixedly connected with baffles (12). The baffles (12) correspond one-to-one with the guide grooves (11) and the baffles (12) are all located in the guide grooves (11). The second support cylinder (4) is hinged with several arc-shaped expansion plates (5) at the end away from the first support cylinder (2). The reset components are all located at the connection between the second support cylinder (4) and the arc-shaped expansion plates (5). The arc-shaped expansion plates (5) are all located within the movement trajectory of the expansion plates (9).

3. The artificial insemination and embryo transfer device for reproductive medicine according to claim 2, characterized in that, The guiding assembly includes a first guiding tube (6) and a second guiding tube (7). One end of the first guiding tube (6) is connected to one end of the second guiding tube (7), and the other end of the first guiding tube (6) is connected to the syringe (1).

4. The artificial insemination and embryo transfer device for reproductive medicine according to claim 3, characterized in that, The syringe (1) is connected to the first guide tube (6) by a threaded connection.

5. The artificial insemination and embryo transfer device for reproductive medicine according to claim 4, characterized in that, The second guide tube (7) is fixedly connected to an arc-shaped silicone cap at the end away from the first guide tube (6).

6. The artificial insemination and embryo transfer device for reproductive medicine according to claim 5, characterized in that, The second guide tube (7) has several through holes on the surface of the end away from the first guide tube (6).

7. The artificial insemination and embryo transfer device for reproductive medicine according to claim 6, characterized in that, The limiting component includes a press-type buckle (10) disposed on the surface of the first support cylinder (2), and the surface of the first rotating cylinder (13) is provided with a plurality of slots corresponding to the buckle (10).

8. The artificial insemination and embryo transfer device for reproductive medicine according to claim 7, characterized in that, The diameter of the circle formed by the arc-shaped expansion piece (5) near the second support cylinder (4) is greater than the diameter formed by the other end, and the diameter formed by the arc-shaped expansion piece (5) away from the second support cylinder (4) is greater than the outer diameter of the first guide tube (6).

9. The artificial insemination and embryo transfer device for reproductive medicine according to claim 8, characterized in that, The reset components all include a torsion spring (15) located at the connection between the second support cylinder (4) and the arc-shaped expansion piece (5).

10. The artificial insemination and embryo transfer device for reproductive medicine according to claim 9, characterized in that, The baffle (12) has an arc-shaped structure.

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