Gynecological reproductive organ examination sampling device

Abstract

The invention discloses a sampling device for gynecological reproductive organ examination, relates to the technical field of gynecological examination auxiliary appliances, and aims at solving the problems that a traditional sampling device is complex in operation and low in sampling accuracy. The sampling device comprises an outer tube, a spherical valve is arranged at the far end of the outer tube, and the spherical valve is of a heart valve type structure; a concentric inner cylinder is arranged in the outer tube, when the far end of the inner cylinder moves towards the heart valve type structure, the heart valve type structure can be opened, a limiting disc is arranged at the near end of the inner cylinder, and the limiting disc is located on the outer side of the near end of the outer tube to limit transition forward movement of the inner cylinder. A sampling rod concentric with the inner cylinder is arranged in the inner cylinder, a sampling brush head is arranged at the far end of the sampling rod, a bending assembly is arranged between the sampling brush head and the sampling rod, and the bending angle of the sampling brush head can be controlled through the bending assembly. The limiting assembly is arranged on the inner cylinder, the bending assembly can be limited through the limiting assembly, and the current bending angle of the sampling brush head is kept.

Description

Technical Field

[0001] The invention belongs to the technical field of gynecological examination auxiliary tools, and in particular relates to a gynecological reproductive organ examination sampling device. Background Art

[0002] With the continuous advancement of modern medical technology, the diagnosis and treatment of gynecological diseases are also continuously improving. However, traditional gynecological reproductive organ examination and sampling methods often have problems such as complex operation, patient discomfort, and inaccurate sampling, which to a certain extent limits the accuracy of clinical diagnosis and treatment. Therefore, it is particularly important to develop a new, efficient, and safe gynecological reproductive organ examination and sampling device.

[0003] In gynecological clinical practice, accurate and rapid sampling and examination of reproductive organs is one of the key steps in diagnosing diseases. Traditional sampling methods such as cervical scraping and biopsy are not only cumbersome to operate, but also cause certain discomfort and trauma to patients. In addition, various factors during the operation, such as inaccurate sampling position, may affect the accuracy of the diagnosis results.

[0004] Chinese Patent Publication Number: CN111134603A, Patent Name: Gynecological Reproductive Organ Examination Sampling Device. The sampling device disclosed in the patent utilizes a first scraper to move and rotate the shell when passing through to scrape tissue samples. The scraping operation is likely to cause unsuitable trauma to the patient, and the force and direction cannot be accurately controlled during the operation, which can easily scratch the uterine mucosa or even pierce the uterine wall, causing serious complications and bringing physical pain and psychological fear to the patient.

[0005] In addition, some existing sampling devices have the following risks: (1) Insufficient contact: The brush head or collection part of most sampling devices is not flexible enough and cannot fit the uterine wall and intrauterine tissue well. For example, some rigid sampling heads cannot adapt to the physiological curvature of the uterus and are prone to miss the lesion site during sampling, especially in some concave or wrinkled tissues.

[0006] (2) Strong discomfort reaction: During the sampling process, due to the poor compatibility of the device with human tissue, as well as the pulling and friction during operation, the patient will feel strong discomfort, including pain, heaviness, etc., which reduces the patient's acceptance of the examination.

[0007] (3) Poor operational convenience: Multiple complex operating steps are required for use, involving the coordination of multiple instruments or complex manual adjustment processes. For example, some products require doctors to adjust the position and angle of multiple components at the same time during operation, which requires extremely high operating skills and experience of doctors and increases the difficulty of operation.

[0008] (4) High learning cost: Due to the complexity of the operation, doctors need to spend a lot of time to learn and become familiar with the use of these sampling products. This not only affects medical efficiency and may lead to delayed diagnosis in some emergency situations, but also may lead to inconsistency in sampling results due to different proficiency levels among different doctors. Summary of the invention

[0009] In response to the above problems, this application proposes a gynecological reproductive organ examination sampling device that can solve the problems of insufficient contact, strong discomfort reaction, and poor operation convenience of existing products. This sampling device is composed of three concentric sleeves that cooperate with each other to complete the sampling operation. The three layers of sleeves work together to make the entire sampling operation process logically clear and easy to master, reducing the difficulty of operation for medical staff The technical solution adopted by the present invention is: A gynecological reproductive organ inspection sampling device, comprising: an outer tube having a ball valve disposed at its distal end; The inner tube is arranged inside the outer tube and is coaxially distributed with the outer tube; A limit assembly, arranged on the inner tube body; The sampling rod is arranged inside the inner tube and is coaxially distributed with the inner tube. A sampling brush head is connected to its end through a deformed short rod. A traction line is arranged at the far end of the sampling brush head. The traction line is squeezed by a limiting component to achieve bending of the sampling brush head.

[0010] As a preferred solution for the sampling rod, a steering wheel is provided at the connection between the distal end of the sampling brush head and the deformed short rod, one end of the traction rope is connected to the edge of the steering wheel, and the other end is wound around the proximal end of the sampling rod.

[0011] As a preferred solution for the steering wheel, the steering wheel is a trumpet-shaped structure, a fixing hole is arranged on the edge of the trumpet-shaped structure, and the far end of the traction line passes through the fixing hole and is knotted and fixed.

[0012] As a preferred solution for the inner tube, the inner tube is composed of two sections of casing, which are connected by a limiting assembly. The limiting assembly includes an annular airbag, wherein a retaining ring is provided at the distal end of one section of the casing, one side of the annular airbag is connected to the annular surface of the retaining ring, and a movable ring is provided on the tube body of the other section of the casing, the other opposite surface of the annular airbag is connected to the annular surface of the movable ring, and the top surface of the annular airbag is in contact with the inner wall of the outer tube.

[0013] Furthermore, a clamping ring is provided on the end surface of one of the sleeve sections, the clamping ring and the movable ring are located on the same sleeve section, and the bottom surface of the annular airbag is connected to the annular surface of the clamping ring close to the retaining ring.

[0014] Furthermore, the cross section of the annular airbag is a horizontally placed "L"-shaped structure.

[0015] As a preferred solution for the outer tube, the outer tube is composed of a short sleeve and a long sleeve, a spherical valve is arranged at the distal end of the short sleeve, and an expansion assembly is arranged between the short sleeve and the long sleeve. When the inner tube moves forward, the moving ring pushes the expansion assembly to be opened and fixed at the cervical position.

[0016] As a preferred embodiment of the expansion assembly, the expansion assembly includes a hose, one end of which is connected to the distal end surface of the long sleeve, and the other end of which is connected to the proximal end surface of the short sleeve, and a plurality of top plates are arranged on the inner wall of the hose, the plurality of top plates are evenly spaced along the circumference of the inner wall of the hose, and a expansion fork is arranged on the inner side of each top plate, the expansion fork is formed by hingedly connecting two crossed support rods, the bottom of one support rod is connected to the distal end surface of the hose, the bottom of the other support rod is connected to the proximal end surface of the hose, and the tops of the two support rods are in contact with the tube body of the top plate.

[0017] Furthermore, the distal end surface of the long sleeve is provided with an annular guide groove, which is distributed along the length direction of the inner wall of the long sleeve. The movable ring and the clamping ring are both located in the annular guide groove and can move in the guide groove.

[0018] Furthermore, the tube body of the long sleeve is provided with scales.

[0019] Beneficial effects of the present invention: (1) High-precision sampling: The design of the flexible brush head and steering wheel can accurately adapt to the complex shape and structure of the uterus. Whether it is the physiological curvature of the uterus, the depression in the uterine cavity, or the lesions at different angles, the brush head can accurately reach and fully contact the tissue through rotation and bending, effectively improving the accuracy and comprehensiveness of sampling and reducing the occurrence of false negative results.

[0020] The precise marking of centimeter scale enables doctors to accurately grasp the depth of the device in the uterine cavity, and combined with the positioning and sampling operations of the device, further ensure the accuracy of the sampling position.

[0021] (2) High compatibility: The entire device is made of soft, biocompatible materials, such as medical silicone, TPU and medical cotton wool, to reduce stimulation and damage to uterine tissue.

[0022] (3) Easy operation: The doctor can complete the placement of the entire device into the cervix by pushing the outer tube, inner tube and sampling rod, sampling rod, inner tube in sequence, while limiting the position of the part entering the cervix, and then rotating the sampling rod to complete the sampling operation. The design and coordination of the outer tube, inner tube and sampling tube make the operation process smooth, without the need for complex skills and long-term training, and even doctors with relatively less experience can quickly master it.

[0023] Compared with existing similar products, this device has significant advantages in ease of operation, and can effectively improve the efficiency of medical examinations, reduce patient waiting time and doctors' operating burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0025] Figure 1 Shown is a stereoscopic view of a gynecological reproductive organ inspection sampling device.

[0026] Figure 2 Shown is a front view of a gynecological reproductive organ inspection sampling device.

[0027] Figure 3 Shown is a partial enlarged view of the distal end of the sampling device.

[0028] Figure 4 Shown is a partial enlarged view of the inner tube (the natural state of the annular airbag).

[0029] Figure 5 Shown is a partial enlarged view of the inner tube (the annular airbag is in compressed state).

[0030] Figure 6 Shown is an exploded perspective view of a gynecological reproductive organ inspection sampling device.

[0031] Figure 7 Shown is an exploded front view of a gynecological reproductive organ inspection sampling device.

[0032] Figure 8 The figure shows a stereoscopic view of a gynecological reproductive organ inspection sampling device in use.

[0033] Fig. 9 The figure shows a front view of a gynecological reproductive organ inspection sampling device in use.

[0034] Fig.10 Shown Figure 6 sectional view of .

[0035] Fig.11 Shown Figure 7 Enlarged view of point A in the middle.

[0036] Fig.12 Shown is a perspective view of the sampling device.

[0037] Fig.13A perspective view of the distal end layout of the sampling device.

[0038] Among them, 1. outer tube; 2. inner tube; 3. sampling rod; 4. ball valve; 5. expansion assembly; 501. hose; 502. top plate; 503. support rod; 6. deformable short rod; 7. sampling brush head; 8. traction line; 9. limit assembly; 901. moving ring; 902. annular airbag; 903. retaining ring; 904. retaining ring; 10. limit plate; 11. steering wheel; 12. scale. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0041] The present embodiment provides a gynecological reproductive organ inspection sampling device, including an outer tube 1, the distal end of the outer tube 1 is a ball valve 4, the ball valve 4 adopts a heart valve structure, an inner tube with a coaxial axis is arranged inside the outer tube 1, when the distal end of the inner tube moves toward the heart valve structure, the heart valve structure can be opened, and a limit plate 10 is arranged at the proximal end of the inner tube, the limit plate 10 is located on the proximal outer side of the outer tube 1, and limits the transition forward movement of the inner tube.

[0042] A sampling rod 3 coaxial with the inner cylinder is arranged in the inner cylinder, a sampling brush head 7 is arranged at the distal end of the sampling rod 3, and a bending component is arranged between the sampling brush head 7 and the sampling rod 3, through which the bending angle of the sampling brush head 7 can be controlled.

[0043] A limiting component 9 is arranged on the inner cylinder, and the limiting component 9 can be used to limit the bending component to maintain the current bending angle of the sampling brush head 7.

[0044] The flexible operation of the sampling brush head 7 can accurately adapt to the complex shapes and structures in the uterus. Whether it is the physiological curvature of the uterus, the depression in the uterine cavity, or the lesions at different angles, the brush head can accurately reach and fully contact the tissue through rotation and bending, effectively improving the accuracy and comprehensiveness of sampling and reducing the occurrence of false negative results. Example 2

[0045] This embodiment further describes the bending component based on the first embodiment.

[0046] The bending assembly includes a deformable short rod 6 and a traction line 8, one end of the deformable short rod 6 is connected to the distal end of the sampling rod 3, and the other end is connected to the sampling brush head 7, and a steering wheel 11 is provided at the connection between the sampling brush head 7 and the deformable short rod 6, one end of the traction rope is connected to the edge of the steering wheel 11, and the other end is wrapped around the proximal end of the sampling rod 3.

[0047] The edge of the steering wheel 11 is provided with a fixing hole, and the distal end of the traction line 8 passes through the fixing hole and is knotted and fixed. The traction line 8 is made of a high-strength polyester fiber rope.

[0048] In this embodiment, the sampling rod 3 is made of medical grade nylon material, which has good smoothness and flexibility. The tube diameter is 2 mm and the length is 26 cm. The sampling brush head 7 is in the shape of a water drop and is pressed by multiple layers of medical absorbent cotton. The steering wheel 11 is a trumpet flower structure made of a nickel-titanium alloy with a memory shape, and the sampling brush head 7 is glued to the center of the steering wheel 11. By pulling the traction line 8, the sampling brush head 7 can be driven to bend. Example 3

[0049] This embodiment describes the structure of the inner tube 2 in detail.

[0050] The inner tube 2 is made of medical grade polyvinyl chloride material, which has moderate strength and good plasticity. The outer diameter of the tube is 6-8mm, the inner diameter is 5-6mm, and the length is 22cm. The inner tube 2 is composed of two sections of sleeves, which are connected by a limit assembly 9. The limit assembly 9 includes an annular airbag 902, wherein a retaining ring 903 is provided at the distal end of one section of the sleeve, one side of the annular airbag 902 is glued to the annular surface of the retaining ring 903, and a moving ring 901 is sleeved on the tube body of the other section of the sleeve, and the other opposite surface of the annular airbag 902 is glued to the annular surface of the moving ring 901, and the top surface of the annular airbag 902 is in contact with the inner wall of the outer tube 1.

[0051] In order to prevent the annular airbag 902 from twisting, a limiting structure is set between the movable ring 901 and the inner wall of the outer tube 1. The limiting structure includes a limiting protrusion and a limiting groove. The limiting groove is distributed along the length direction of the inner wall of the outer tube 1. The limiting groove can penetrate the wall thickness of the outer tube 1. The protrusion is distributed along the length direction of the outer end face of the movable ring 901. The protrusion is located in the limiting groove and moves along the limiting groove (not shown in the drawings).

[0052] The outer walls of the retaining ring 903 and the moving ring 901 are in contact with the inner wall of the outer tube 1, so that the inner tube 2 can be kept moving horizontally and linearly inside the outer tube 1.

[0053] A snap ring 904 is provided on the end face of one section of the casing. The snap ring 904 and the movable ring 901 are located on the same section of the casing. The bottom surface of the annular airbag 902 is glued to the annular surface of the snap ring 904 near the retaining ring 903. The cross section of the annular airbag 902 is a horizontally placed "L"-shaped structure. The annular airbag 902 is made of thermoplastic polyurethane elastomer rubber (TPU) with excellent biocompatibility. The airbag is flat when not compressed, and can expand inward after compression. The wall thickness of the top of the annular airbag 902 that contacts the inner wall of the outer tube 1 is greater than the wall thickness of other parts.

[0054] When the inner tube 2 moves toward the distal end, the structure on the outer tube 1 squeezes the moving ring 901 to move toward the clamping ring 904, the volume of the annular airbag 902 is reduced, and the air pressure inside the annular airbag 902 is increased. Since the top of the annular airbag 902 is limited by the inner wall of the outer tube 1, the bottom wall of the annular airbag 902 expands inward, squeezing the traction line 8, thereby assisting the traction line 8 to pull the sampling brush head 7 to bend, and at the same time suppressing the traction line 8 to prevent the traction line 8 from loosening and causing the bending angle to change.

[0055] If you want to further increase the bending angle of the sampling brush head 7, you can pull the traction line 8 by yourself to control the bending angle of the sampling brush head 7, and wrap the flexible end of the traction line 8 around the distal end of the sampling rod 3 to fix the traction line 8. Example 4

[0056] This embodiment describes the structure of the outer tube 1 in embodiment 1 in detail.

[0057] The outer tube 1 is made of medical grade high-strength transparent polyester material with good flexibility and pressure resistance. The tube body is cylindrical, with an outer diameter of 7-9mm, an inner diameter of 6-8mm, and a length of 20cm. The outer tube 1 is composed of a short sleeve and a long sleeve, and a spherical valve 4 is arranged at the distal end of the short sleeve. A spreading assembly 5 is arranged between the short sleeve and the long sleeve. When the inner tube 2 moves forward, the moving ring 901 pushes the spreading assembly 5 to be opened and fixed at the cervical position, which can maintain the stability of the part entering the uterine cavity.

[0058] The expansion assembly 5 includes a hose 501, one end of which is connected to the distal end surface of the long sleeve, and the other end of which is connected to the proximal end surface of the short sleeve. The distal end surface of the long sleeve is provided with an annular guide groove, which is distributed along the length direction of the inner wall of the long sleeve. The movable ring 901 and the retaining ring 904 are both located in the annular guide groove and can move in the guide groove.

[0059] A plurality of top plates 502 are arranged on the inner wall of the hose 501, and the plurality of top plates 502 are evenly spaced along the circumference of the inner wall of the hose 501, and a support fork is arranged on the inner side of each top plate 502, and the support fork is formed by hingedly connecting two crossed support rods 503, wherein the bottom of one support rod 503 is connected to the distal end surface of the hose 501, and the bottom of the other support rod 503 is connected to the proximal end surface of the hose 501, and the tops of the two support rods 503 are in contact with the tube body of the top plate 502.

[0060] In the natural state, the fork pieces are gathered together and close to the body of the hose 501, and the hose 501 part is flush with the body of the short sleeve and the long sleeve. The fork pieces are retracted into the outer tube 1, and the thickness of the body of the hose 501 is less than the thickness of the two end faces of the hose 501, and the bottoms of the two support rods 503 are respectively connected to the bottoms of the two end faces.

[0061] When the inner tube 2 is pushed forward, the moving ring 901 and the retaining ring 903 move forward along the annular guide groove. First, the ball valve 4 is opened, and the sampling brush head 7 and the deformed short rod 6 move to the outside of the ball valve 4. At the same time, the moving ring 901 is next to the proximal surface of the hose 501, and the inner tube 2 continues to move forward. The moving ring 901 will squeeze the adjacent support rods 503, and the two cross-connected support rods 503 will approach each other, pushing the top plate 502 outward, thereby opening the hose 501, and the hose 501 is against the uterine opening, improving the stability of the sampling operation. In this process, the moving ring 901 reversely squeezes the annular airbag 902, and the annular airbag 902 shrinks, so that the internal gas moves to the inside of the annular airbag 902, and the annular airbag expands inward, squeezing the traction line 8, pulling the sampling brush head 7 to bend, and at this time, the inner tube 2 emerges from the outside of the ball valve 4.

[0062] In addition, a scale 12 is printed on the tube of the long cannula, and the minimum unit of the scale 12 is 0.1 cm, which is convenient for accurate measurement of the uterine cavity depth and sampling depth. Example 5

[0063] In combination with the structures of the sampling rod 3, the inner tube 2 and the outer tube 1 shown in Examples 2-4, the specific operation process is as follows: (1) Preparation stage The doctor first checked the tools to ensure that they were all sterilized and that the sampling device packaging bag was intact, and prepared to carry out the sampling operation.

[0064] (2) Insertion and initial positioning The patient lies down on the designated examination chair or bed according to the doctor's instructions and exposes the vagina. The doctor puts on examination gloves, opens the packaging bag, takes out the sampling device, and slowly inserts the sampling device into the disinfected vagina, advancing it along the cervix, and always observing the scale 12 on the outer tube 1. When the front end of the sampling device approaches the cervix, the insertion speed is slowed down.

[0065] When the customer shows that the distal end of the sampling device has entered the uterine cavity about 2-3 cm, stop insertion and complete the initial positioning of the sampling device.

[0066] (3) Fix in preparation for sampling The doctor holds the proximal end of the inner tube 2 and slowly pushes it forward to open the spherical valve 4. During this process, the inner tube 2 and the sampling rod 3 move synchronously. After the spherical valve 4 is opened, the sampling brush head 7 and the deformed short rod 6 are first moved forward to the outside of the spherical valve 4, and the inner tube 2 continues to be moved forward. The moving ring 901 and the clamping ring 904 move forward along the annular guide groove. The moving ring 901 is adjacent to the proximal end surface of the hose 501. The moving ring 901 will squeeze the adjacent support rods 503, and the two cross-connected support rods 503 will approach each other, pushing the top plate 502 outward, thereby opening the hose 501. The hose 501 is against the cervical opening, and the stability of the outer tube 1, the inner tube 2 and the sampling rod 3 is basically fixed, thereby improving the stability of the sampling operation.

[0067] During the above process, the movable ring 901 squeezes the annular airbag 902 in the reverse direction, and the annular airbag 902 contracts, causing the internal gas to move toward the inside of the annular airbag 902, and the annular airbag expands inward, squeezing the traction line 8, pulling the sampling brush head 7 to bend. While squeezing the traction line 8, the traction line 8 can be pressed to limit the position. The distal end of the traction line 8 is synchronously contracted and tightened with the squeezing of the annular airbag 902, and the sampling rod 3 is basically fixed.

[0068] (4) Sampling operation The doctor rotates the sampling rod 3 to drive the sampling brush head 7 to rotate in the uterine cavity to sample tissues at different axial positions.

[0069] (5) Sampling completion and exit After the sampling is completed, the inner tube 2 is looped and slowly withdrawn a short distance backwards to reset the annular airbag 902, lose the pressure on the traction line 8, reset the sampling brush head 7, and then synchronously withdraw the inner tube 2 and the sampling rod 3, and withdraw the distal end surface of the inner tube 2 and the sampling brush head 7 to the inner side of the outer tube 1. At this time, the support rod 503 gathers the hose 501 and shrinks and resets, and the outer tube 1 is directly pulled out, and the entire sampling device can be withdrawn from the cervix, and the sampling brush head 7 is removed and placed in a specific sample collection container for inspection.

[0070] When the entire device is withdrawn from the cervix, the sampling brush head 7 is retracted into the inner tube 2, thereby ensuring the safety of the sampling brush head 7 and preventing the sampling brush head 7 from being contaminated.

[0071] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A gynecological reproductive organ inspection sampling device, characterized in that: include: an outer tube having a ball valve disposed at its distal end; The inner tube is arranged inside the outer tube and is coaxially distributed with the outer tube; A limit assembly, arranged on the inner tube body; The sampling rod is arranged inside the inner tube and is coaxially distributed with the inner tube. A sampling brush head is connected to its end through a deformed short rod. A traction line is arranged at the far end of the sampling brush head. The traction line is squeezed by a limiting component to achieve bending of the sampling brush head.

2. A gynecological reproductive organ inspection sampling device according to claim 1, characterized in that: A steering wheel is arranged at the connection between the far end of the sampling brush head and the deformed short rod, one end of the traction rope is connected to the edge of the steering wheel, and the other end of the traction rope is wound around the proximal end of the sampling rod.

3. A gynecological reproductive organ inspection sampling device according to claim 2, characterized in that: The steering wheel is a trumpet-shaped structure, and a fixing hole is arranged on the edge of the trumpet-shaped structure. The far end of the traction line passes through the fixing hole and is knotted and fixed.

4. A gynecological reproductive organ inspection sampling device according to claim 1, characterized in that: The inner tube is composed of two sections of sleeves, which are connected by a limiting assembly. The limiting assembly includes an annular airbag. A retaining ring is provided at the distal end of one section of the sleeve, and one side of the annular airbag is connected to the annular surface of the retaining ring. A movable ring is provided on the tube body of the other section of the sleeve, and the other opposite surface of the annular airbag is connected to the annular surface of the movable ring, and the top surface of the annular airbag contacts the inner wall of the outer tube.

5. A gynecological reproductive organ inspection sampling device according to claim 4, characterized in that: A clamping ring is arranged on the end surface of one of the sleeve sections. The clamping ring and the moving ring are located on the same sleeve section. The bottom surface of the annular airbag is connected to the annular surface of the clamping ring close to the retaining ring.

6. A gynecological reproductive organ inspection sampling device according to claim 5, characterized in that: The cross section of the annular airbag is a horizontally placed "L"-shaped structure.

7. A gynecological reproductive organ inspection sampling device according to claim 5, characterized in that: The outer tube is composed of a short sleeve and a long sleeve, a spherical valve is arranged at the distal end of the short sleeve, and a distraction assembly is arranged between the short sleeve and the long sleeve. When the inner tube moves forward, the moving ring pushes the distraction assembly to be opened and fixed at the cervical position.

8. A gynecological reproductive organ inspection sampling device according to claim 7, characterized in that: The expansion assembly includes a hose, one end of which is connected to the distal end surface of the long sleeve, and the other end of which is connected to the proximal end surface of the short sleeve, and a plurality of top plates are arranged on the inner wall of the hose, and the plurality of top plates are evenly spaced along the circumference of the inner wall of the hose, and an expansion fork is arranged on the inner side of each top plate, and the expansion fork is formed by hingedly connecting two crossed support rods, wherein the bottom of one support rod is connected to the distal end surface of the hose, and the bottom of the other support rod is connected to the proximal end surface of the hose, and the tops of the two support rods are in contact with the tube body of the top plate.

9. A gynecological reproductive organ inspection sampling device according to claim 8, characterized in that: The distal end surface of the long sleeve is provided with an annular guide groove, which is distributed along the length direction of the inner wall of the long sleeve. The movable ring and the clamping ring are both located in the annular guide groove and can move in the guide groove.

10. The gynecological reproductive organ inspection sampling device according to claim 7, characterized in that: The tube body of the long sleeve is provided with scales.

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