Visual vaginal assisted reproductive embryo transplantation device

Abstract

The invention relates to the technical field of medical instruments, in particular to a visual vaginal assisted reproductive embryo transplantation device which comprises a vaginal speculum and a cavity ultrasonic probe, a notch part for placing the cavity ultrasonic probe is formed in a protruding part of the speculum, and the cavity ultrasonic probe is arranged to be of an upward bent structure; the cavity ultrasonic probe is located between the upper leaf of the vaginal speculum and the vaginal wall, is attached to the upper wall of the vagina and is close to the upper portion of the posterior dome of the vagina, the cavity ultrasonic probe cannot block the operation view presented by the vaginal speculum, the distance between the ultrasonic probe head and the uterus body can be further reduced, the developing effect is improved, the ultrasonic probe is bent upwards, and the ultrasonic probe cannot be damaged. And real-time tracking operation of an ultrasonic operator is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for visualizing vaginal assisted reproductive embryo transplantation. Background Art

[0002] Embryo transfer is an important part of human assisted reproductive technology. Currently, international assisted reproductive embryo transfer is performed under the guidance of abdominal ultrasound. The transplant tube is made of silicone hose, and the ultrasound imaging effect is limited. The optimal position of the embryo in the uterine cavity is a key factor in determining the pregnancy rate of in vitro fertilization technology, which requires the ultrasound operator to have absolutely precise imaging technology. However, abdominal ultrasound-mediated ultrasound has limited ultrasound imaging effect for patients with individual difficulties, such as: patients with excessive obesity, excessive anteversion and antevertion of the uterus, endometrial polyps, a history of cervical surgery, stenosis of the internal cervical os, abnormal cervical anatomical structure, etc., and imaging becomes a challenge. If the expected imaging effect cannot be achieved clinically, the embryo must be placed blindly based on the doctor's manual experience. The specific operation of blind embryo placement is to manually insert the embryo transfer tube from the external cervical os to the internal os of the uterus, and then slowly push it towards the bottom of the uterus until there is obvious resistance. At this time, the doctor will think that it has reached the bottom of the uterus, and then pull the transfer tube outward for a certain distance, and then push the embryo into the uterus. However, in reality, it may not reach the ideal position for transfer. This is because external factors such as endometrial polyps and uterine fibroids can also cause significant resistance in the transfer tube. If the embryo in the transfer tube is pushed out at this time, it will lead to a significant decrease in clinical pregnancy rate. Therefore, it is urgent to solve the problem of imaging.

[0003] Vaginal ultrasound mediation has a much higher clarity than abdominal ultrasound mediation because the detection head is closer to the uterine body. At present, many researchers choose to combine vaginal ultrasound with the lower leaf of the vaginal speculum, such as the vaginal dilator and ultrasound probe disclosed in patent application number 2016208502693, and an ultrasound-guided visual abortion uterine cavity diagnosis and treatment auxiliary device disclosed in patent application number 202222568165.1, and an ultrasound-guided probe with vaginal dilation function disclosed in patent application number 201210106490.4. The above technical solutions all use different technical means to set the ultrasound detection head on the lower leaf of the vaginal speculum. The inventor purchased and actually used an ultrasound-guided auxiliary product produced by a certain company. The structure of this product is consistent with the structure disclosed in application number 2022225681651, but it is different in use. The reasons for the above defects are: 1) Due to the structure of the uterus, the long axis of the uterus and the long axis of the vagina form a forward angle of about 90°, and the uterine body and the cervix form a forward bend of about 170°. When the patient maintains a vaginal examination posture, the uterine body is in an upper position. Therefore, the ultrasound detection head located at the lower leaf of the vaginal speculum is far away from the fundus of the uterus, and the visualization effect is poor. 2) The detection direction of the ultrasound detection head is fixed, focused, and cannot be adjusted. Therefore, when encountering endometrial polyps, the visualization effect will be affected, resulting in the loss of the position of the end of the transplant tube. The direction of the ultrasound detection head cannot be adjusted, making it impossible for the ultrasound detection head to avoid the endometrial polyps and find the end of the transplant tube again. For this reason, a device for visualized vaginal assisted reproductive embryo transplantation is proposed. Summary of the Invention

[0004] The present invention aims to provide a device for visualizing vaginal assisted reproductive embryo transfer to solve the problems mentioned in the background art. The specific technical solution is as follows:

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a device for visualized vaginal assisted reproductive embryo transfer, comprising a vaginal speculum and a cavity ultrasound probe, wherein the vaginal speculum includes an upper lobe, characterized in that the upper lobe includes a support portion inserted into the vagina and a speculum protrusion located outside the vagina, the speculum protrusion is provided with a notch portion for placing the cavity ultrasound probe, the cavity ultrasound probe is arranged above the support portion through the notch portion, the cavity ultrasound probe includes an implantation portion inserted into the vagina and an operating portion connected to the implantation portion, the operating portion is bent upward to form an angle with the implantation portion.

[0006] Preferably, the vaginal speculum and the cavity ultrasound probe are connected by a sliding connector, and the sliding connector includes a fixed connecting plate and a sliding connecting plate, the fixed connecting plate is detachably connected to the upper leaf, the sliding connecting plate is slidably connected to the fixed connecting plate, and the sliding connecting plate is detachably connected to the cavity ultrasound probe.

[0007] Preferably, the fixed connecting plate is provided with a first connecting structure for connecting a vaginal speculum, a linear slide groove is provided on the fixed connecting plate, a first buckle, a fixed slider, a movable slider and an adjustment mechanism are provided on the sliding connecting plate, the first buckle is provided on the sliding connecting plate, a first slot corresponding to the first buckle is provided on the cavity ultrasound probe, the fixed slider is provided on the lower side of the sliding connecting plate, and is slidably connected to the linear slide groove, the movable slider is provided on the adjustment mechanism, the movable slider is slidably connected to the linear slide groove, and the adjustment mechanism is used to adjust the forward and backward offset of the movable slider.

[0008] Preferably, the first connecting structure includes a U-shaped bayonet and a second buckle, the U-shaped bayonet is formed by bending the end of the fixed connecting plate, the U-shaped bayonet is clamped on the edge of the notch, and a second slot corresponding to the second buckle is opened on the upper leaf.

[0009] Preferably, the adjustment mechanism includes a first turntable, a first joint, a pull wire, a sliding sleeve, a second turntable, a second joint, and a first adjusting knob. The sliding connecting plate includes a horizontal section in contact with the fixed connecting plate and a bent section bent upward. The first turntable is rotatably connected to the horizontal section. Two first joints are eccentrically provided on the first turntable. The movable slider is eccentrically provided on the lower side of the first turntable. The second turntable is connected to the bent section. Two second joints are eccentrically provided on the second turntable. The two ends of the pull wire are respectively connected to the first joint and the second joint. The pull wire passes through multiple sleeves in sequence. Multiple sleeves are fixedly connected to the upper side of the sliding connecting plate. The sleeve is used to adjust the path of the current pull wire. The first adjusting knob is provided on the side of the sliding connecting plate. The first adjusting knob is connected to the second turntable.

[0010] Preferably, the cavity ultrasound probe includes a detection head, a wire, an elastic connecting ring and a fine-tuning structure. The detection head is fixedly connected to the end of the implant part through the elastic connecting ring, and the fine-tuning structure is connected to the detection head for fine-tuning the position and direction of the detection head.

[0011] Preferably, the fine-tuning structure includes an elastic sleeve, a centering bearing, a cylinder, a first rotating sleeve, a second rotating sleeve, a hollow universal joint, and a second adjusting knob, the centering bearing is arranged on the inner wall of the implant part, and the inner ring of the centering bearing is provided with an elastic sleeve, one end of the elastic sleeve is fixedly connected to the detection head, and the other end is rotatably eccentrically arranged on the cylinder, the cylinder is provided with a through hole for the wire to pass through, the cylinder is rotatably connected to the inner wall of the implant part, the centering bearing is located between the detection head and the cylinder, the cylinder is fixedly connected to the first rotating sleeve, the first rotating sleeve is located in the implant part, the second rotating sleeve is rotatably connected to the inner wall of the operating part, the second rotating sleeve and the first rotating sleeve are connected by a hollow universal joint, the second rotating sleeve is fixedly connected to the second adjusting knob, the wire is electrically connected to the detection head, and passes through the elastic sleeve, the through hole, the first rotating sleeve, the hollow universal joint, the second rotating sleeve and the second adjusting knob in sequence to reach the outside of the cavity ultrasound probe.

[0012] Preferably, the first adjusting knob is configured as a knob with a self-locking function.

[0013] Preferably, the second adjusting knob is configured as a knob with a self-locking function.

[0014] The present invention provides a device for visualizing vaginal assisted reproductive embryo transfer, which has the following beneficial effects:

[0015] 1. By opening a notch on the raised part of the speculum for inserting the cavity ultrasound probe and setting the cavity ultrasound probe to an upward curved structure, it is convenient for the ultrasound operator to track the operation in real time. The cavity ultrasound probe is located between the upper lobe and the vaginal wall, sticking to the upper wall of the vagina and approaching the upper part of the posterior vaginal fornix. The cavity ultrasound probe will not block the surgical field of view presented by the vaginal speculum, and can further reduce the distance between the ultrasound detection head and the fundus of the uterus, thereby improving the imaging effect.

[0016] 2. By adding a sliding connection between the vaginal speculum and the cavity ultrasound probe, the sliding connection plate is equivalent to the forward and backward offset of the fixed connection plate, that is, the forward and backward swing of the cavity ultrasound probe, and the detection direction of the cavity ultrasound probe is adjusted, making the connection between the vaginal speculum and the cavity ultrasound probe more stable.

[0017] 3. By setting a fine-tuning structure in the cavity ultrasound probe, the position and direction of the detection head can be fine-tuned by rotating the second adjustment knob, allowing the detection head to move left and right to find a position to avoid endometrial polyps, find the best imaging position, and obtain clearer ultrasound imaging images to assist doctors in judging whether the transplant tube has reached the best transplant position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of some embodiments of the present invention;

[0020] Figure 2 is an assembly diagram of the present invention in other embodiments;

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of the sliding connector of the present invention;

[0022] Figure 4 yes Figure 3 A local enlarged view of point A;

[0023] Figure 5 yes Figure 3 A partial enlarged view of point B;

[0024] Figure 6 is a schematic diagram of the three-dimensional structure of the sliding connector of the present invention from another perspective;

[0025] Figure 7 is a schematic diagram of the three-dimensional structure of the sliding connection plate of the present invention;

[0026] Figure 8 Schematic diagram of the internal structure of the cavity ultrasound probe of the present invention;

[0027] Figure 9 yes Figure 8 A partial enlarged view of point C;

[0028] Figure 10 yes Figure 8 A partial enlarged view of point D;

[0029] Figure 11 is a comparative schematic diagram of a cylinder before and after rotating 180° in some embodiments;

[0030] Figure 12 It is a schematic diagram of the three-dimensional structure of some embodiments of the present invention. DETAILED DESCRIPTION

[0031] The following is a detailed description of the device for visual vaginal assisted reproductive embryo transfer proposed by the present invention, in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0032] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being described. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0033] It should be noted that the illustrations provided in the following embodiments are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the status, quantity and proportion of each component may be changed at will, and the component layout status may also be more complicated.

[0034] A device for visualizing vaginal assisted reproductive embryo transfer, in some embodiments, such as Figure 1As shown, the vaginal speculum 100 and the cavity ultrasound probe 200 are included. The vaginal speculum 100 includes an upper leaf 110, and the upper leaf 110 includes a support portion 111 inserted into the vagina and a speculum protrusion 112 located outside the vagina. The speculum protrusion 112 is provided with a notch 113 for placing the cavity ultrasound probe 200. The cavity ultrasound probe 200 is arranged above the support portion 111 through the notch 113. The cavity ultrasound probe 200 includes an implant portion 210 inserted into the vagina and an implant portion 212 connected to the implant portion 213. 10 is connected to the operating portion 220, the operating portion 220 is bent upward to form an angle with the implantation portion 210. When performing the embryo transfer operation, the cavity ultrasound probe 200 is placed in the notch 113. According to the normal operation process, the vaginal speculum 100 is placed horizontally and inserted into the vagina together with the cavity ultrasound probe 200. There will be some resistance during the process, but the vagina has a strong expansibility, so the vaginal speculum 100 and the cavity ultrasound probe 200 can be inserted into the vagina together. After insertion into the vagina, open the vaginal speculum 100. 00 is then rotated 90° to a vertical position and fixed. At this time, the cavity ultrasound probe 200 is located between the upper lobe 110 and the vaginal wall, close to the upper vaginal wall and approaching the upper part of the posterior vaginal fornix. The cavity ultrasound probe 200 does not block the surgical field of view presented by the vaginal speculum 100, and can further reduce the distance between the ultrasound detection head 240 and the uterine fundus, thereby improving the imaging effect. The surgeon is accompanied by at least two people, one of whom is responsible for operating the graft tube, specifically operating the graft tube, entering the vagina through the vaginal speculum 100, and inserting the graft tube through the cervical os into the uterus. The other is responsible for operating the ultrasound equipment, specifically holding the operating portion 220 of the cavity ultrasound probe 200, moving it back and forth, left and right, and observing the ultrasound image on the ultrasound display device connected to the cavity ultrasound probe 200. The detection direction of the cavity ultrasound probe 200 is gradually adjusted according to the insertion of the graft tube to find a clear ultrasound image of the graft tube. The operating portion 220 is curved upward to form an angle with the implant portion 210, so that when the surgeon holds the operating portion 220, it does not block the other surgeon's surgical field of view.

[0035] In some embodiments, as Figure 2-7As shown, the vaginal speculum 100 and the cavity ultrasound probe 200 are connected by a sliding connection member 300, and the sliding connection member 300 includes a fixed connection plate 310 and a sliding connection plate 320. The fixed connection plate 310 is provided with a first connection structure for connecting the vaginal speculum 100, and a linear slide groove 311 is provided on the fixed connection plate 310. The sliding connection plate 320 is provided with a first buckle 321, a fixed slider 322, a movable slider 323 and an adjustment mechanism 330. The first buckle 321 is provided on the sliding connection plate 320, and the cavity ultrasound probe 200 is provided with a first slot 230 corresponding to the first buckle 321. The cavity ultrasound probe 200 and the sliding connection plate 320 are fastened together by the first buckle 321 and the first slot 230. The detachable connection is that the fixed slider 322 is provided on the lower side of the sliding connecting plate 320 and is slidably connected to the linear slide groove 311. The movable slider 323 is provided on the adjustment mechanism 330. The movable slider 323 is slidably connected to the linear slide groove 311. The sliding connecting plate 320 slides left and right along the linear slide groove 311 through the fixed slider 322 and the movable slider 323, that is, the depth of the implant 210 inserted into the vagina is adjusted. The adjustment mechanism 330 is used to adjust the front and back offset of the movable slider 323, so that the sliding connecting plate 320 is equivalent to the front and back offset of the fixed connecting plate 310, that is, the front and back swing of the cavity ultrasound probe 200, and the detection direction of the cavity ultrasound probe 200 are adjusted, so that the connection between the vaginal speculum 100 and the cavity ultrasound probe 200 is more stable.

[0036] In some embodiments, as Figure 2 、 Figure 6 As shown, the first connecting structure includes a U-shaped bayonet 312 and a second buckle 313. The U-shaped bayonet 312 is formed by bending the end of the fixed connecting plate 310. The U-shaped bayonet 312 is clamped to the edge 113a of the notch. The upper leaf 110 is provided with a second clamping groove 114 corresponding to the second buckle 313. When in use, the U-shaped bayonet 312 is clamped to the corresponding notch edge 113a, and then the sliding connecting plate 320 is pressed downward so that the second buckle 313 is engaged in the second clamping groove 114, thereby realizing a detachable connection between the sliding connecting plate 320 and the upper leaf 110.

[0037] In some implementations, such as Figure 2-6As shown, the adjustment mechanism 330 includes a first turntable 331, a first joint 332, a pull wire 333, a sliding sleeve 334, a second turntable 335, a second joint 336, and a first adjustment knob 337. The sliding connecting plate 320 includes a horizontal section 320a in contact with the fixed connecting plate 310 and a bent section 320b bent upward. The first turntable 331 is rotatably connected to the horizontal section 320a. Two first joints 332 are eccentrically provided on the first turntable 331. The movable slider 323 is eccentrically provided on the lower side of the first turntable 331. The second turntable 335 is connected to the bent section 320b. Two second joints 336 are eccentrically provided on the second turntable 335. The two ends of the pull wire 333 are respectively connected to the first joints 332 and the second joint 336, the pull wire 333 passes through multiple sleeves 334 in sequence, and multiple sleeves 334 are fixedly connected to the upper side of the sliding connecting plate 320. The sleeve 334 is used to adjust the path of the pull wire 333. The first adjusting knob 337 is set on the side of the sliding connecting plate 320. The first adjusting knob 337 is connected to the second turntable 335. By rotating the first adjusting knob 337, the second turntable 335 is driven to rotate. The second turntable 335 drives the first turntable 331 to rotate through the second joint 336, the pull wire 333, and the first joint 332, so that the movable slider 323 eccentrically set on the lower side of the first turntable 331 is offset forward and backward, so that the sliding connecting plate 320 is equivalent to the forward and backward offset of the fixed connecting plate 310.

[0038] In some embodiments, as Figure 8-11As shown, the cavity ultrasound probe 200 includes a detection head 240, a wire 250, an elastic connecting ring 260 and a fine-tuning structure 270. The detection head 240 is fixedly connected to the end of the implant 210 through the elastic connecting ring 260. The fine-tuning structure 270 is connected to the detection head 240 for fine-tuning the position and direction of the detection head 240. In some embodiments, the fine-tuning structure 270 includes an elastic sleeve 271, a centering bearing 272, a cylinder 273, a first rotating sleeve 274, a second rotating sleeve 275, a hollow universal joint 276, and a second adjusting knob 277. The centering bearing 272 is arranged on the inner wall of the implant 210, and the inner ring of the centering bearing 272 is provided with an elastic sleeve 271. One end of the probe head 240 is fixedly connected to the other end, and the other end is eccentrically arranged on the cylinder 273. The cylinder 273 is provided with a through hole for the wire 250 to pass through. The cylinder 273 is rotatably connected to the inner wall of the implant 210. The center bearing 272 is located between the probe head 240 and the cylinder 273. The cylinder 273 is fixedly connected to the first rotating sleeve 274. The first rotating sleeve 274 is located at the implant 210. The second rotating sleeve 275 is rotatably connected to the inner wall of the operating part 220. The second rotating sleeve 275 is connected to the first rotating sleeve 274 through a hollow universal joint 276. The second rotating sleeve 275 is fixedly connected to the second adjusting knob 277. The wire 250 is connected to the probe head 240. The measuring head 240 is electrically connected and passes through the elastic sleeve 271, the through hole, the first rotating sleeve 274, the hollow universal joint 276, the second rotating sleeve 275 and the second adjusting knob 277 in sequence to reach the outside of the cavity ultrasound probe 200. By rotating the second adjusting knob 277, the torque passes through the second rotating sleeve 275, the hollow universal joint 276, and the first rotating sleeve 274 in sequence and finally acts on the cylinder 273, thereby realizing the rotation of the cylinder 273. When the through hole of the cylinder 273 is rotated to the top, the elastic sleeve 271 arches upward to form a certain arc. Under the limiting action of the center bearing 272, the end of the elastic sleeve 271 drives the detecting head 240 to deflect downward, close to the upper lobe 110, which can facilitate the operation of inserting into the vagina. When encountering endometrial polyps that cause the current position to be blurred, you can first slide the cavity ultrasound probe 200 left and right to adjust the depth of the implant part 210 inserted into the vagina, and rotate the first adjustment knob 337 to adjust the detection direction of the cavity ultrasound probe 200 to obtain a roughly clear ultrasound imaging image, and then rotate the second adjustment knob 277 to fine-tune the position and direction of the detection head 240, so that the detection head 240 moves left and right to find a position to avoid endometrial polyps, find the best imaging position, and obtain a clearer ultrasound imaging image to assist the doctor in judging whether the transplant tube has reached the best transplant position; in some embodiments, the first adjustment knob 337 and the second adjustment knob 277 are both knobs with self-locking function, which can achieve self-locking fixation after adjustment.

[0039] In some embodiments, as Figure 12 As shown, the upper lobe 110 is cut into two side wings by a notch 113, and the lower sides of the two side wings are connected by two connecting pieces. The first connecting structure includes a U-shaped bayonet 312 and a second buckle 313, which are respectively detachably connected to the two connecting pieces. In this embodiment, the sliding connector 300 drives the cavity ultrasound probe 200 to descend together, which will encroach on a part of the surgical field of view, but the two side wings and the cavity ultrasound probe 200 can support the vaginal wall together, which can reduce the patient's pain.

[0040] It should be noted that the above-mentioned device for visualized vaginal assisted reproductive embryo transfer is not limited to use in assisted reproductive embryo transfer. The device can also be used for vaginal visualized ultrasound guidance of various uterine cavity operations, such as vaginal visual abortion, vaginal uterine curettage, etc., which can greatly improve the surgical treatment effect and reduce surgical side effects and uterine cavity residues.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A device for visualizing vaginal assisted reproductive embryo transfer, comprising a vaginal speculum and a cavity ultrasound probe, wherein the vaginal speculum includes an upper leaf, characterized in that: The upper lobe includes a support portion inserted into the vagina and a speculum bulge located outside the vagina. The speculum bulge is provided with a notch portion for inserting a cavity ultrasound probe. The cavity ultrasound probe is arranged above the support portion through the notch portion. The cavity ultrasound probe includes an implant portion inserted into the vagina and an operating portion connected to the implant portion. The operating portion is bent upward to form an angle with the implant portion.

2. The device for visualizing vaginal assisted reproductive embryo transfer according to claim 1, characterized in that: The vaginal speculum and the cavity ultrasound probe are connected by a sliding connection, which includes a fixed connection plate and a sliding connection plate. The fixed connection plate is detachably connected to the upper leaf, and the sliding connection plate is slidably connected to the fixed connection plate. The sliding connection plate is detachably connected to the cavity ultrasound probe.

3. The device for visualizing vaginal assisted reproductive embryo transfer according to claim 2, characterized in that: The fixed connecting plate is provided with a first connecting structure for connecting a vaginal speculum, a linear slide groove is provided on the fixed connecting plate, a first buckle, a fixed slider, a movable slider and an adjustment mechanism are provided on the sliding connecting plate, the first buckle is provided on the sliding connecting plate, and a first slot corresponding to the first buckle is provided on the cavity ultrasound probe, the fixed slider is provided on the lower side of the sliding connecting plate and is slidably connected to the linear slide groove, the movable slider is provided on the adjustment mechanism, the movable slider is slidably connected to the linear slide groove, and the adjustment mechanism is used to adjust the forward and backward offset of the movable slider.

4. The device for visualizing vaginal assisted reproductive embryo transfer according to claim 3, characterized in that: The first connecting structure includes a U-shaped bayonet and a second buckle. The U-shaped bayonet is formed by bending the end of the fixed connecting plate. The U-shaped bayonet is clamped on the edge of the notch. A second slot corresponding to the second buckle is opened on the upper leaf.

5. The device for visualized vaginal assisted reproductive embryo transfer according to claim 3, characterized in that: The adjustment mechanism includes a first turntable, a first joint, a pull wire, a sliding sleeve, a second turntable, a second joint, and a first adjusting knob. The sliding connecting plate includes a horizontal section in contact with the fixed connecting plate and a bending section that bends upward. The first turntable is rotatably connected to the horizontal section. Two first joints are eccentrically provided on the first turntable. The movable slider is eccentrically provided on the lower side of the first turntable. The second turntable is connected to the bending section. Two second joints are eccentrically provided on the second turntable. The two ends of the pull wire are respectively connected to the first joint and the second joint. The pull wire passes through multiple sliding sleeves in sequence. Multiple sliding sleeves are fixedly connected to the upper side of the sliding connecting plate. The sliding sleeve is used to adjust the path of the current pull wire. The first adjusting knob is provided on the side of the sliding connecting plate. The first adjusting knob is connected to the second turntable.

6. The device for visualizing vaginal assisted reproductive embryo transfer according to claim 1, characterized in that: The cavity ultrasound probe includes a detection head, a wire, an elastic connecting ring and a fine-tuning structure. The detection head is fixedly connected to the end of the implant part through the elastic connecting ring. The fine-tuning structure is connected to the detection head and is used to fine-tune the position and direction of the detection head.

7. The device for visualizing vaginal assisted reproductive embryo transfer according to claim 6, characterized in that: The fine-tuning structure includes an elastic sleeve, a centering bearing, a cylinder, a first rotating sleeve, a second rotating sleeve, a hollow universal joint, and a second adjusting knob. The centering bearing is arranged on the inner wall of the implant part, and the inner ring of the centering bearing is provided with an elastic sleeve. One end of the elastic sleeve is fixedly connected to the detection head, and the other end is rotatably eccentrically arranged on the cylinder. The cylinder is provided with a through hole for the wire to pass through. The cylinder is rotatably connected to the inner wall of the implant part, and the centering bearing is located between the detection head and the cylinder. The cylinder is fixedly connected to the first rotating sleeve, the first rotating sleeve is located in the implant part, and the second rotating sleeve is rotatably connected to the inner wall of the operating part. The second rotating sleeve and the first rotating sleeve are transmission-connected through a hollow universal joint. The second rotating sleeve is fixedly connected to the second adjusting knob. The wire is electrically connected to the detection head and passes through the elastic sleeve, the through hole, the first rotating sleeve, the hollow universal joint, the second rotating sleeve and the second adjusting knob in sequence to reach the outside of the cavity ultrasound probe.

8. The device for visualized vaginal assisted reproductive embryo transfer according to claim 5, characterized in that: The first adjusting knob is configured as a knob with a self-locking function.

9. The device for visualizing vaginal assisted reproductive embryo transfer according to claim 7, characterized in that: The second adjusting knob is configured as a knob with a self-locking function.

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