A cervical sampling device for obstetrics and gynecology

Abstract

The present invention relates to the technical field of cervical biopsy sampling, and specifically to a gynecological and obstetric cervical sampling device, comprising an upper opening clamp and a lower opening clamp, wherein the upper opening clamp is arranged on the top of the lower opening clamp, and the outer side of the upper opening clamp is rotatably connected to a rotating pin. The present invention provides a gynecological and obstetric cervical sampling device, which has an upper opening clamp and a lower opening clamp as an auxiliary vaginal expansion structure during sampling. The upper opening clamp can be rotated along the rotating pin to facilitate opening the upper opening clamp and the lower opening clamp for intravaginal expansion, and the upper opening clamp and the lower opening clamp will contact the inner wall of the vagina through a contact bag made of flexible material to improve the degree of fit with the inner wall of the vagina. A sampling tube is provided and connected to the lower opening clamp. After the positions of the upper opening clamp and the lower opening clamp are relatively fixed, they can provide a certain auxiliary support for the sampling tube, which has the advantage that when a person holds the sampling tube and moves it, it is not easy to shake.

Description

Technical Field

[0001] The present invention relates to the technical field of cervical biopsy sampling, in particular to a cervical sampling device for obstetrics and gynecology. Background Art

[0002] As we all know, cervical biopsy is the most reliable basis for diagnosing cervical cancer and precancerous lesions. When cervical cytology examination finds abnormal cells, such as atypical squamous cells, low-grade squamous intraepithelial lesions, high-grade squamous intraepithelial lesions, etc., a cervical biopsy is needed to confirm whether cervical cancer or precancerous lesions exist. For some chronic cervicitis, such as long-term cervical erosion and cervical polyps, a biopsy can help doctors determine the type and severity of inflammation.

[0003] After searching, a Chinese patent discloses a cervical biopsy forceps, and its application publication number is CN106137269B. The patent has a shell and a sampling head. The sampling head is installed at the front end of the shell. The front end of the shell is also installed with a disinfection device. The cervical biopsy forceps provided by the application is installed with a disinfection device at the front end of the shell. The uterus can be disinfected during or after sampling, avoiding the secondary damage caused by the need to remove the cervical biopsy forceps after sampling and then insert the disinfection device into the cervix for disinfection in the prior art.

[0004] When performing a cervical biopsy, a sampling device is required. In the prior art, the vagina is usually opened with a dilator, and the suspicious tissue at the cervix is cut with biopsy forceps for examination. However, the dilator is usually rigid in structure. Therefore, when the ambient temperature is low, the low temperature structure is likely to cause temperature stimulation in the vagina, which can also cause severe discomfort. In addition, when the person holds the biopsy forceps, the cutting end is usually far away from the holding position, and the person may shake when applying force, which can easily cause errors in the cutting position.

[0005] Based on the above-mentioned problems, we found that it is difficult for the existing gynecological cervical sampling device to avoid the above problems at the same time. Therefore, we proposed a gynecological cervical sampling device that can provide auxiliary support to the sampling structure during sampling, and can pre-position before cutting to avoid deviation in the cutting position, while reducing irritation to the vagina of the examinee. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a gynecological and obstetric cervical sampling device, which can provide auxiliary support for the sampling structure during sampling and can be pre-positioned before cutting to avoid deviation in the cutting position, while reducing vaginal irritation to the examinee.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a gynecological and obstetric cervical sampling device, comprising an upper opening forceps and a lower opening forceps, wherein the upper opening forceps is arranged on top of the lower opening forceps, the outer side of the upper opening forceps is rotatably connected to a rotating pin, and the inner side of the lower opening forceps is rotatably connected to the rotating pin, the inner sides of the upper opening forceps and the lower opening forceps are both provided with contact pockets, and a sampling tube is provided between the upper opening forceps and the lower opening forceps;

[0008] The sampling tube includes an integrally formed collection tube and a bottom tube. The collection tube is arranged at the top of the bottom tube. An integrally formed extension section is provided on the right side of the bottom tube. An air pump is installed on the inside of the collection tube. The top of the air pump is provided on the inside of the collection tube. An interception mesh plate is fixedly connected to the inside of the collection tube. A cut-off mechanism is provided on the inside of the collection tube.

[0009] The cutting mechanism includes a shrinkage cover, a flat plate cavity is fixedly connected to the top of the inner side of the collection tube, a piston plate is slidably connected to the inner side of the flat plate cavity, a blade is fixedly connected to the bottom of the piston plate, the bottom of the blade passes through the shrinkage cover and is movably connected to the shrinkage cover, an integrally formed guide cover is provided on the right side of the shrinkage cover, a transmission pipe is fixedly connected to the top of the left side of the flat plate cavity, the transmission pipe passes through the bottom of the bottom tube on the side away from the flat plate cavity and extends from the inner side of the extension section.

[0010] The above technical solution is adopted, by setting an upper opening clamp to cooperate with the lower opening clamp as a vaginal auxiliary expansion structure during sampling, the upper opening clamp can be rotated along the rotating pin to facilitate opening the upper opening clamp and the lower opening clamp for vaginal expansion, and the upper opening clamp and the lower opening clamp will contact the inner wall of the vagina through a contact bag made of flexible material to improve the fit with the inner wall of the vagina and reduce irritation. The set sampling tube is connected to the lower opening clamp, and can provide certain auxiliary support for the sampling tube after the positions of the upper opening clamp and the lower opening clamp are relatively fixed. When the personnel are taking samples, it is not easy to shake when holding the sampling tube to move, so as to reduce the possibility of sampling position deviation. In the process of sampling, the sampling tube is held at the position of the extension section and extended inward along the lower opening clamp until the collection tube contacts the sampling position. The angle of the sampling tube can then be adjusted to fit the sampling position. The sampling position is closed, and the inspection position is compressed to fit the shrinkage cover of the cut-off mechanism and be recessed. The air pump draws gas to make the left opening position of the collection tube negative pressure. At this time, the inspection position is further sucked into the collection tube. The sampling position can be observed at this time. If it is not the position where sampling is required, the air pump can be stopped and the position can be changed. If the sampling position is determined, gas can be blown into the inside of the transmission tube, and the gas fills the flat cavity, and pushes the piston plate and the blade to press down along the flat cavity, cutting off the sampling part, and making it close to the air pump under the influence of the airflow. It will fall into the bottom tube after being intercepted by the interception mesh plate, which can not only avoid the sampling error that may be caused by direct shearing of the tissue, but also ensure that the tissue size obtained each time is consistent. After that, the structure can be taken out, and the tissue can be taken out from the bottom of the collection tube for inspection.

[0011] The present invention is further configured as follows: the contact capsule includes a silicone outer layer, a rubber inner layer is provided on the inner side of the silicone outer layer, the inner side of the rubber inner layer is filled with a heating medium, an insulating cotton filling layer is provided between the silicone outer layer and the rubber inner layer, and a heating wire is installed on the inner side of the rubber inner layer.

[0012] By adopting the above technical solution, a softer silicone outer layer is set in direct contact with the inner wall of the vagina, which can cause a certain deformation when subjected to force. The rubber inner layer has a harder texture, which can not only withstand high temperatures to a certain extent, but also has a good storage effect for liquid media. Before sampling, the heating medium can be preheated through the heating wire to make the structural temperature close to the body temperature of the subject, further reducing discomfort.

[0013] The present invention is further configured as follows: the inner sides of the upper opening pliers and the lower opening pliers are fixedly connected with assembly plates, the inner sides of the assembly plates are provided with rivet pins, the outer sides of the rivet pins penetrate the silicone outer layer and the rubber inner layer and are bonded to the rubber inner layer by waterproof glue.

[0014] By adopting the above technical solution, by providing an assembly piece in conjunction with a rivet pin, the contact capsule and the upper opening clamp or the lower opening clamp can be firmly connected, and the waterproof adhesive bonding can reduce the possibility of leakage at the connection.

[0015] The present invention is further configured as follows: a narrow frame is fixedly connected to the bottom of the inner side of the lower opening clamp, a sliding sleeve is slidably connected to the outer side of the narrow frame, and the top of the sliding sleeve is movably connected to the sampling tube.

[0016] By adopting the above technical solution, by setting a narrow frame and a sliding sleeve, the sampling tube can be easily moved horizontally along the lower opening clamp, and the moving path of the sampling tube can be limited to avoid large-angle tilting or rotation, thereby assisting in supporting the sampling tube.

[0017] The present invention is further configured as follows: a sliding ball is fixedly connected to the top of the sliding sleeve, a ball joint is slidably connected to the inner side of the sliding ball, and the outer sides of the collection tube and the bottom tube are both fixedly connected to the ball joint.

[0018] By adopting the above technical solution, by setting a sliding ball in conjunction with a ball joint, when the sampling position needs to be adjusted at the extended section held by a person, the ball joint connected to the collection tube and the bottom tube will slide in the sliding ball, making the structure more flexible in moving position and more stable when adjusting the position.

[0019] The present invention is further configured as follows: the bottom of the right side of the lower opening pliers is fixedly connected to the outer body, the outer side of the outer body is fixedly connected to an outer hoop, the inner side of the outer hoop is threadedly connected to a threaded rod, and the top of the threaded rod is movably connected to the upper opening pliers.

[0020] By adopting the above technical solution, by setting up the outside of the body, the right sides of the lower opening pliers and the upper opening pliers are limited outside the body of the personnel during sampling and inspection, avoiding excessive penetration and difficulty in removal. At the same time, it allows personnel to easily operate or observe the internal structure on the right side of the upper opening pliers and the lower opening pliers. The outer hoop cooperates with the threaded rod to transmit the structure. When the threaded rod is rotated along the outer hoop, the right side of the upper opening pliers will be pulled downward along the rotating pin and open relative to the lower opening pliers.

[0021] The present invention is further configured as follows: a sample tank is provided on the top of the bottom tube, two isolation plates are fixedly connected to the inner side of the bottom tube, the outer side of the transmission tube passes through the isolation plates and is fixedly connected to the isolation plates, and a fill light is fixedly connected to the left side of the bottom tube.

[0022] By adopting the above technical solution, the air tightness of the structure can be improved by setting an isolation piece. At the same time, the fallen sample tissue can be protected and temporarily stored. The set fill light can provide certain lighting for the cervical position for observation during sampling.

[0023] The present invention is further configured as follows: a narrow groove is provided at the bottom of the bottom tube, a push piece is slidably connected to the inner side of the narrow groove, a return spring is fixedly connected to the right side of the push piece, and the right side of the return spring is fixedly connected to the right side of the inner side of the narrow groove.

[0024] By adopting the above technical solution, a push piece is set at the bottom of the bottom tube, and the sample tissue will be picked up when it falls. When the sample tissue needs to be taken out, the push piece can be slid along the narrow groove to expose the internal space of the bottom tube. At this time, the sample tissue will fall. The reset spring can be deformed when the push piece is moved, and reset when the person stops pushing to reset the structure.

[0025] The present invention is further configured as follows: an empty tube is fixedly connected to the right side of the transmission tube, a piston block is slidably connected to the inner side of the empty tube, a sliding rod is fixedly connected to the bottom of the piston block, the outer side of the sliding rod is slidably connected to the empty tube, a tension spring is fixedly connected to the bottom of the piston block, and the bottom of the tension spring is fixedly connected to the empty tube.

[0026] By adopting the above technical solution, an empty tube is set up to match the piston block. When gas is blown into the transmission tube, the piston block can be moved by pushing the slide rod to make it slide inside the empty tube, and the internal gas can be blown into the transmission tube to provide cutting power. The tension spring can pull the piston block to reset when the person stops pushing the slide rod after the cutting is completed.

[0027] The present invention is further configured as follows: the outer side of the upper opening pliers is highly connected to an inclined frame, the bottom of the inclined frame is fixedly connected to a guide rail, the inner side of the guide rail is slidably connected to a slider, and the bottom of the slider is rotatably connected to the top of the threaded rod.

[0028] By adopting the above technical solution, by setting up a tilting frame to cooperate with the guide rail, when the threaded rod moves along the outer hoop, it will push and pull the slider to move. While the slider slides on the inner side of the guide rail, it will drag or push the tilting frame and the upper opening clamp connected to it to open or close along the rotating pin.

[0029] Compared with the prior art, the present invention provides a gynecological cervical sampling device with the following beneficial effects:

[0030] The gynecological and obstetric cervical sampling device is provided with an upper opening clamp and a lower opening clamp as a vaginal auxiliary expansion structure during sampling. The upper opening clamp can be rotated along a rotating pin to open the upper opening clamp and the lower opening clamp for vaginal expansion. The upper opening clamp and the lower opening clamp will contact the inner wall of the vagina through a contact bag made of a flexible material to improve the fit with the inner wall of the vagina and reduce irritation. The sampling tube is connected to the lower opening clamp. After the positions of the upper opening clamp and the lower opening clamp are relatively fixed, a certain auxiliary support effect can be provided for the sampling tube. When a person is taking a sample, the sampling tube is not easily shaken when being held and moved, thereby reducing the possibility of deviation of the sampling position. During the sampling process, the sampling tube is held at the position of the extension section and extended inward along the lower opening clamp until the collection tube contacts the sampling position. The angle of the sampling tube can then be adjusted to Fitting the sampling position, the inspection position will be compressed to fit the shrinkage cover of the cut-off mechanism and be recessed. The air pump draws gas to create a negative pressure at the left opening of the collection tube. At this time, the inspection position is further sucked into the collection tube. The sampling position can be observed at this time. If it is not a position where sampling is required, the air pump can be stopped and the position can be changed. If the sampling position is determined, gas can be blown into the interior of the transmission tube. The gas fills the flat cavity and pushes the piston plate and the blade down along the flat cavity to cut off the sampling part and make it close to the air pump under the influence of the airflow. After being intercepted by the interception mesh, it will fall into the bottom tube, which not only avoids the sampling error that may be caused by direct shearing of the tissue, but also ensures that the tissue size obtained each time is consistent. The structure can then be taken out, and the tissue can be taken out from the bottom of the collection tube for inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the structure of the present invention;

[0032] Figure 2 Schematic diagram of the external structure of the sampling tube in the present invention;

[0033] Figure 3 Schematic diagram of the structure of the sampling tube in the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of the lower opening pliers of the present invention;

[0035] Figure 5 Schematic diagram of the structure of the contact capsule in the present invention;

[0036] Figure 6 Schematic diagram of the structure of the hollow tube of the present invention;

[0037] Figure 7 This is a schematic diagram of the connection of the tilting frame in the present invention;

[0038] Figure 8Schematic diagram of the structure of the truncation mechanism in the present invention;

[0039] Figure 9 Schematic diagram of the structure of the flat cavity in the present invention.

[0040] Figure: 1, upper opening pliers; 2, lower opening pliers; 3, rotating pin; 4, contact capsule; 401, silicone outer layer; 402, rubber inner layer; 403, thermal insulation cotton filling layer; 404, heating wire; 5, sampling tube; 501, collection tube; 502, bottom tube; 503, extension section; 504, air pump; 505, intercepting mesh plate; 506, cutting mechanism; 506a, shrinking mask; 506b, flat cavity; 506c, piston plate ; 506d, blade; 506e, guide cover; 506f, transmission tube; 6, assembly plate; 7, rivet pin; 8, narrow frame; 9, sliding sleeve; 10, sliding ball; 11, ball joint; 12, outside of the body; 13, outer hoop; 14, threaded rod; 15, isolation plate; 16, push plate; 17, return spring; 18, empty tube; 19, piston block; 20, sliding rod; 21, tension spring; 22, tilting frame; 23, guide rail; 24, slider. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figure 1-9 A gynecological and obstetric cervical sampling device includes an upper opening forceps 1 and a lower opening forceps 2. The upper opening forceps 1 is arranged on the top of the lower opening forceps 2. The outer side of the upper opening forceps 1 is rotatably connected to a rotating pin 3. The inner side of the lower opening forceps 2 is rotatably connected to the rotating pin 3. The inner sides of the upper opening forceps 1 and the lower opening forceps 2 are both provided with a contact bag 4. A sampling tube 5 is provided between the upper opening forceps 1 and the lower opening forceps 2.

[0043] The sampling tube 5 includes an integrally formed collection tube 501 and a bottom tube 502. The collection tube 501 is located at the top of the bottom tube 502. An integrally formed extension section 503 is provided on the right side of the bottom tube 502. An air pump 504 is installed on the inside of the collection tube 501. The top of the air pump 504 is located on the inside of the collection tube 501. An interception mesh plate 505 is fixedly connected to the inside of the collection tube 501. A cutoff mechanism 506 is provided on the inside of the collection tube 501.

[0044] The cutting mechanism 506 includes a shrinking cover 506a. A flat chamber 506b is fixedly connected to the top of the inner side of the collection tube 501. A piston plate 506c is slidably connected to the inner side of the flat chamber 506b. A blade 506d is fixedly connected to the bottom of the piston plate 506c. The bottom of the blade 506d passes through the shrinking cover 506a and is movably connected to the shrinking cover 506a. An integrally formed guide cover 506e is provided on the right side of the shrinking cover 506a. A transmission tube 506f is fixedly connected to the top of the left side of the flat chamber 506b. The side of the transmission tube 506f away from the flat chamber 506b passes through the bottom of the bottom tube 502 and extends from the inner side of the extension section 503.

[0045] By setting the sampling tube 5 to be connected with the lower opening clamp 2, after the positions of the upper opening clamp 1 and the lower opening clamp 2 are relatively fixed, a certain auxiliary support effect can be provided to the sampling tube 5. When the personnel are taking samples, the sampling tube 5 is not easily shaken when being held and moved, so as to reduce the possibility of deviation of the sampling position. In the sampling process, the extension section 503 is held and extended inward along the lower opening clamp 2 until the collection tube 501 contacts the sampling position. The angle of the sampling tube 5 can then be adjusted to fit the sampling position. The inspection position is compressed to fit the shrinkage cover 506a of the cut-off mechanism 506 and become concave. The air pump 504 draws gas to make the left opening position of the collection tube 501 negative pressure. At this time, the inspection position is further inhaled. In the collection tube 501, the sampling position can be observed at this time. If it is not the position where sampling is required, the air pump 504 can be stopped from extracting and the position can be changed. If the sampling position is determined, gas can be blown into the interior of the transmission tube 506f, and the gas is filled into the flat cavity 506b, and the piston plate 506c and the blade 506d are pushed down along the flat cavity 506b, cutting off the sampling part, and making it close to the air pump 504 under the influence of the airflow. After being intercepted by the interception mesh plate 505, it will fall into the bottom tube 502, which not only avoids the sampling error that may be caused by direct shearing of the tissue, but also ensures that the size of the tissue obtained each time is consistent. After that, the structure can be taken out, and the tissue can be taken out from the bottom of the collection tube 501 for inspection.

[0046] Among them, the bottom of the inner side of the lower opening clamp 2 is fixedly connected with a narrow frame 8, the outer side of the narrow frame 8 is slidably connected with a sliding sleeve 9, and the top of the sliding sleeve 9 is movably connected to the sampling tube 5. By setting the narrow frame 8 in conjunction with the sliding sleeve 9, the sampling tube 5 can be easily moved horizontally along the lower opening clamp 2, and the moving path of the sampling tube 5 is limited to avoid large-angle tilting or rotation, and to assist in supporting the sampling tube 5. The top of the sliding sleeve 9 is fixedly connected with a sliding ball 10, and the inner side of the sliding ball 10 is slidably connected with a ball joint 11. The outer sides of the collection tube 501 and the bottom tube 502 are fixedly connected with the ball joint 11. By setting the sliding ball 10 in conjunction with the ball joint 11, the personnel need to adjust the extended section 503 when holding it. When adjusting the sampling position, the ball joint 11 connected to the collection tube 501 and the bottom tube 502 will slide in the sliding ball 10, making the structure more flexible in moving the position and more stable when adjusting the position. A sample groove is provided on the top of the bottom tube 502, and two isolation plates 15 are fixedly connected to the inner side of the bottom tube 502. The outer side of the transmission tube 506f passes through the isolation plate 15 and is fixedly connected to the isolation plate 15. A fill light is fixedly connected to the left side of the bottom tube 502. By setting the isolation plate 15, the air tightness of the structure can be improved, and the fallen sample tissue can be protected and temporarily stored. The set fill light can provide a certain amount of illumination for the cervical position during sampling. For observation, a narrow groove is provided at the bottom of the bottom tube 502, and a push piece 16 is slidably connected to the inner side of the narrow groove. A reset spring 17 is fixedly connected to the right side of the push piece 16. The right side of the reset spring 17 is fixedly connected to the right side of the inner side of the narrow groove. By setting the push piece 16 at the bottom of the bottom tube 502, the sample tissue will be picked up when it falls. When the sample tissue needs to be taken out, the push piece 16 can be slid along the narrow groove to expose the internal space of the bottom tube 502. At this time, the sample tissue will fall. The reset spring 17 can be deformed when the push piece 16 is moved, and reset when the person stops pushing to reset the structure. The right side of the transmission tube 506f is fixedly connected to the empty tube 18 The inner side of the empty tube 18 is slidably connected with a piston block 19, and the bottom of the piston block 19 is fixedly connected with a slide rod 20. The outer side of the slide rod 20 is slidably connected to the empty tube 18, and the bottom of the piston block 19 is fixedly connected with a tension spring 21. The bottom of the tension spring 21 is fixedly connected to the empty tube 18. By setting the empty tube 18 to cooperate with the piston block 19, when gas is blown into the transmission tube 506f, the piston block 19 can be moved by pushing the slide rod 20 to slide inside the empty tube 18, and the internal gas can be blown into the transmission tube 506f to provide power for cutting. The tension spring 21 can pull the piston block 19 to reset when the personnel stop pushing the slide rod 20 after the cutting is completed.

[0047] The working principle of this embodiment is as follows: when a person is taking a sample, he or she holds the sampling tube 5 and moves it. The narrow frame 8 cooperates with the sliding sleeve 9 to facilitate the horizontal movement of the sampling tube 5 along the lower opening clamp 2, and limits the movement path of the sampling tube 5, which is not prone to shaking. When the person needs to adjust the sampling position at the extended section 503 held by the person, the ball joint 11 connected to the collection tube 501 and the bottom tube 502 will slide in the sliding ball 10 for auxiliary support. During the sampling process, the sampling tube 5 is inserted along the lower opening clamp 2 until the collection tube 501 contacts the sampling position. Then, the angle of the sampling tube 5 can be adjusted to fit the sampling position. The inspection position is compressed to fit the shrinkage cover 506a of the cut-off mechanism 506. , and a part of it is recessed. The air pump 504 draws gas to make the left opening position of the collection tube 501 negative pressure. At this time, the inspection position is further sucked into the collection tube 501, and the piston block 19 is moved by pushing the slide rod 20 to slide inside the empty tube 18, and the internal gas is blown into the transmission tube 506f to fill the flat cavity 506b with gas, and the piston plate 506c and the blade 506d are pushed down along the flat cavity 506b to cut off the sampling part, and make it close to the air pump 504 under the influence of the airflow. After being intercepted by the interception mesh plate 505, it will fall into the bottom tube 502, and the push piece 16 is slid along the narrow groove to expose the internal space of the bottom tube 502. At this time, the sample tissue will fall.

[0048] Example 2: Reference Figure 1-7 A gynecological cervical sampling device further includes a contact capsule 4, wherein the contact capsule 4 includes a silicone outer layer 401, a rubber inner layer 402 is provided on the inner side of the silicone outer layer 401, the inner side of the rubber inner layer 402 is filled with a heating medium, a heat insulating cotton filling layer 403 is provided between the silicone outer layer 401 and the rubber inner layer 402, and a heating wire 404 is installed on the inner side of the rubber inner layer 402;

[0049] The upper opening forceps 1 cooperates with the lower opening forceps 2 as an auxiliary vaginal expansion structure during sampling. The upper opening forceps 1 can be rotated along the rotating pin 3 to open the upper opening forceps 1 and the lower opening forceps 2 for intravaginal expansion, and the upper opening forceps 1 and the lower opening forceps 2 will contact the inner wall of the vagina through the contact bag 4 made of flexible material to improve the fit with the inner wall of the vagina and reduce irritation. By setting the softer silicone outer layer 401 in direct contact with the inner wall of the vagina, it can undergo a certain deformation when subjected to force. The rubber inner layer 402 has a harder texture, which can not only withstand high temperatures to a certain extent, but also have a good storage effect on liquid media. Before sampling, the heating medium can be preheated by the heating wire 404 to make the structural temperature close to the body temperature of the subject, further reducing discomfort.

[0050] Among them, the inner sides of the upper opening pliers 1 and the lower opening pliers 2 are fixedly connected with an assembly piece 6, and the inner side of the assembly piece 6 is provided with a rivet pin 7, and the outer side of the rivet pin 7 penetrates the silicone outer layer 401 and the rubber inner layer 402 and is bonded to the rubber inner layer 402 by waterproof glue. By arranging the assembly piece 6 and cooperating with the rivet pin 7, it is convenient to firmly connect the contact capsule 4 and the upper opening pliers 1 or the lower opening pliers 2, and the leakage at the connection can be reduced by waterproof glue. The bottom of the right side of the lower opening pliers 2 is fixedly connected to the external body part 12, and the outer side of the external body part 12 is fixedly connected to the outer hoop 13. The inner side of the outer hoop 13 is threadedly connected to a threaded rod 14, and the top of the threaded rod 14 is movably connected to the upper opening pliers 1. By arranging the external body part 12, the right sides of the lower opening pliers 2 and the upper opening pliers 1 are limited outside the body of the person during sampling and inspection to avoid excessive penetration and difficulty in removal. At the same time, it is convenient for personnel to operate or observe the internal structure on the right side of the upper and lower opening pliers 1, 2. The outer hoop 13 cooperates with the threaded rod 14 to transmit the structure. When the threaded rod 14 is rotated along the outer hoop 13, the right side of the upper opening pliers 1 will be pulled downward along the rotating pin 3 and opened relative to the lower opening pliers 2. The outer height of the upper opening pliers 1 is connected to a tilting frame 22, and the bottom of the tilting frame 22 is fixedly connected to a guide rail 23, and the inner side of the guide rail 23 is slidably connected to a slider 24. The bottom of the slider 24 is rotatably connected to the top of the threaded rod 14. By setting the tilting frame 22 to cooperate with the guide rail 23, when the threaded rod 14 is displaced along the outer hoop 13, the slider 24 will be pushed and pulled to move. When the slider 24 slides on the inner side of the guide rail 23, it will drag or push the tilting frame 22 and the upper opening pliers 1 connected thereto along the rotating pin 3 to open or close.

[0051] The working principle of this embodiment is as follows: when in use, the upper opening forceps 1 and the lower opening forceps 2 can be inserted into the subject's body, and the threaded rod 14 is rotated inside the outer hoop 13. The threaded rod 14 is displaced along the outer hoop 13 and will pull the slider 24 to move. The slider 24 slides on the inner side of the guide rail 23 and drags the tilting frame 22 and the upper opening forceps 1 connected thereto to open along the rotating pin 3 to expand the vagina. The upper opening forceps 1 and the lower opening forceps 2 will contact the inner wall of the vagina through the contact bag 4 made of flexible material to improve the fit with the inner wall of the vagina and reduce irritation. By setting a softer silicone outer layer 401 in direct contact with the inner wall of the vagina, it can undergo a certain deformation when subjected to force. The rubber inner layer 402 has a harder texture, which can not only withstand high temperatures to a certain extent, but also has a good storage effect on the liquid medium. Before sampling, the heating wire 404 can facilitate the preheating of the heating medium to make the structural temperature close to the body temperature of the subject.

[0052] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gynecological cervical sampling device, comprising an upper opening forceps (1) and a lower opening forceps (2), wherein the upper opening forceps (1) is arranged on the top of the lower opening forceps (2), and is characterized in that: The outer side of the upper opening clamp (1) is rotatably connected to a rotating pin (3), the inner side of the lower opening clamp (2) is rotatably connected to the rotating pin (3), the inner sides of the upper opening clamp (1) and the lower opening clamp (2) are both provided with a contact capsule (4), and a sampling tube (5) is provided between the upper opening clamp (1) and the lower opening clamp (2); The sampling tube (5) comprises an integrally formed collection tube (501) and a bottom tube (502); the collection tube (501) is arranged at the top of the bottom tube (502); an integrally formed extension section (503) is provided on the right side of the bottom tube (502); an air pump (504) is installed on the inner side of the collection tube (501); the top of the air pump (504) is arranged on the inner side of the collection tube (501); an interception screen (505) is fixedly connected to the inner side of the collection tube (501); and a cut-off mechanism (506) is provided on the inner side of the collection tube (501); The cutting mechanism (506) includes a shrinking cover (506a), the top of the inner side of the collection tube (501) is fixedly connected to a flat cavity (506b), the inner side of the flat cavity (506b) is slidably connected to a piston plate (506c), the bottom of the piston plate (506c) is fixedly connected to a blade (506d), the bottom of the blade (506d) passes through the shrinking cover (506a) and is movably connected to the shrinking cover (506a), and the right side of the shrinking cover (506a) is provided with an integrally formed The guide cover (506e) is fixedly connected to the top of the left side of the flat cavity (506b) with a transmission tube (506f). The side of the transmission tube (506f) away from the flat cavity (506b) passes through the bottom of the bottom tube (502) and extends from the inner side of the extension section (503). After gas is blown into the interior of the transmission tube 506f, the gas is filled into the flat cavity (506b) and pushes the piston plate (506c) and the blade (506d) downward along the flat cavity (506b) to cut off the sampling portion.

2. The cervical sampling device for obstetrics and gynecology according to claim 1, characterized in that: The contact capsule (4) comprises a silicone outer layer (401), a rubber inner layer (402) is provided on the inner side of the silicone outer layer (401), a heating medium is filled on the inner side of the rubber inner layer (402), a heat-insulating cotton filling layer (403) is provided between the silicone outer layer (401) and the rubber inner layer (402), and a heating wire (404) is installed on the inner side of the rubber inner layer (402).

3. The cervical sampling device for obstetrics and gynecology according to claim 2, characterized in that: The inner sides of the upper opening pliers (1) and the lower opening pliers (2) are both fixedly connected with an assembly sheet (6), and the inner side of the assembly sheet (6) is provided with a rivet pin (7), and the outer side of the rivet pin (7) penetrates the silicone outer layer (401) and the rubber inner layer (402) and is bonded to the rubber inner layer (402) by waterproof glue.

4. The cervical sampling device for obstetrics and gynecology according to claim 1, characterized in that: The bottom of the inner side of the lower opening clamp (2) is fixedly connected to a narrow frame (8), the outer side of the narrow frame (8) is slidably connected to a sliding sleeve (9), and the top of the sliding sleeve (9) is movably connected to the sampling tube (5).

5. The cervical sampling device for obstetrics and gynecology according to claim 4, characterized in that: The top of the sliding sleeve (9) is fixedly connected to a sliding ball (10), the inner side of the sliding ball (10) is slidably connected to a ball joint (11), and the outer sides of the collection tube (501) and the bottom tube (502) are fixedly connected to the ball joint (11).

6. The cervical sampling device for obstetrics and gynecology according to claim 1, characterized in that: The bottom of the right side of the lower opening pliers (2) is fixedly connected to the outer body (12), the outer side of the outer body (12) is fixedly connected to the outer hoop (13), the inner side of the outer hoop (13) is threadedly connected to the threaded rod (14), and the top of the threaded rod (14) is movably connected to the upper opening pliers (1).

7. The cervical sampling device for obstetrics and gynecology according to claim 1, characterized in that: A sample tank is provided on the top of the bottom tube (502), two isolation plates (15) are fixedly connected to the inner side of the bottom tube (502), the outer side of the transmission tube (506f) passes through the isolation plates (15) and is fixedly connected to the isolation plates (15), and a fill light is fixedly connected to the left side of the bottom tube (502).

8. The cervical sampling device for obstetrics and gynecology according to claim 1, characterized in that: A narrow groove is provided at the bottom of the bottom tube (502), a push piece (16) is slidably connected to the inner side of the narrow groove, a return spring (17) is fixedly connected to the right side of the push piece (16), and the right side of the return spring (17) is fixedly connected to the right side of the inner side of the narrow groove.

9. The cervical sampling device for obstetrics and gynecology according to claim 1, characterized in that: The right side of the transmission tube (506f) is fixedly connected to an empty tube (18), the inner side of the empty tube (18) is slidably connected to a piston block (19), the bottom of the piston block (19) is fixedly connected to a slide rod (20), the outer side of the slide rod (20) is slidably connected to the empty tube (18), the bottom of the piston block (19) is fixedly connected to a tension spring (21), and the bottom of the tension spring (21) is fixedly connected to the empty tube (18).

10. The cervical sampling device for obstetrics and gynecology according to claim 6, characterized in that: The outer side of the upper opening pliers (1) is connected to an inclined frame (22) at a height thereof, the bottom of the inclined frame (22) is fixedly connected to a guide rail (23), the inner side of the guide rail (23) is slidably connected to a slider (24), and the bottom of the slider (24) is rotatably connected to the top of the threaded rod (14).

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