Sampling device for cervical cancer screening

Abstract

The utility model relates to a sampling device for cervical cancer screening, which comprises a storage tube, an observation window is fixed at the center of the front surface of the storage tube, a tube cover is inserted at the bottom end of the storage tube, a handle is fixed at the center of the bottom surface of the tube cover, and a sampling mechanism for cervical cancer screening is arranged on the storage tube. The sampling mechanism comprises fixed rods fixed on the left side and the right side of the inner top wall of the storage pipe, and the top ends of the outer surfaces of the fixed rods are movably sleeved with reset springs. By arranging the reset spring, the sampling capillary tube can be automatically moved into the storage tube after sampling is completed, only the storage tube needs to be operated when the device is taken out, and when the device does not need to be used immediately after sampling is completed under special conditions, a nut can be rotated after the sampling capillary tube is moved to the storage tube, so that the sampling capillary tube can be taken out. The nut is tightly attached to the top surface of the storage tube, so that the screw rod is fixed, the sampling capillary tube is prevented from moving out of the storage tube under the influence of other external factors, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of cervical cancer screening technology, specifically a sampling device for cervical cancer screening. Background Technology

[0002] Cervical cancer is a common type of malignant tumor in women. Therefore, cervical cancer screening is a common examination item in physical examinations and gynecological examinations. Before the examination, taking a sample from the cervix is ​​an important process. Therefore, the sampling device is particularly important for cervical cancer screening. At present, for the convenience of use, many test kits include a sampling device.

[0003] For example, Chinese Patent (Announcement No.: CN209360753U) discloses a sampling device for cervical cancer screening. This utility model provides a sampling device for cervical cancer screening in which the sampler can extend out of the cannula to take a sample, and then retract back into the cannula after taking the sample. Then, the cannula and the sampler are pulled out of the body, thus protecting the sample and preventing the sample from falling off the sampler during the removal process. Therefore, this sampling device can increase the sampling efficiency and also reduce the amount of liquid and other debris in the channel adhering to the sampling head during the insertion into the cervix, which would affect the screening results.

[0004] After sampling is completed, the sampling head is moved into the cannula. Since the handle can move and rotate, and the device does not have a structure to fix the handle, it is impossible to fix the sampling head and the cannula into a whole. Therefore, even if the sampling head is moved into the cannula by pulling the handle, the handle needs to be pulled continuously while the cannula needs to be fixed during the process of removing the device from the vagina, which is not convenient to use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a sampling device for cervical cancer screening, which is convenient to use and solves the problem of inconvenience in the use of existing devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for cervical cancer screening, comprising a receiving tube, an observation window fixed at the center of the front of the receiving tube, a tube cap inserted into the bottom end of the receiving tube, a handle fixed at the center of the bottom surface of the tube cap, and a sampling mechanism for cervical cancer screening provided on the receiving tube.

[0007] The sampling mechanism includes fixed rods fixed on the left and right sides of the top wall inside the receiving tube. A return spring is movably fitted on the top of the outer surface of the fixed rod. A support plate is fixed to the bottom of the fixed rod. A top block is slidably connected to the top of the outer surface of the fixed rod. A fixing block is fixed between the two top blocks on opposite sides. A screw is fixed on the inner peripheral wall of the fixing block. A nut is threaded to the top of the outer surface of the screw. A connecting plate is fixed to the bottom of the screw. Multiple sampling capillaries are evenly fixed on the bottom surface of the connecting plate.

[0008] Furthermore, the top surface of the storage tube is rotatably connected to rotating rods on both the left and right sides via bearings, and a wristband is fixed to the top of the rotating rod.

[0009] Furthermore, a rubber pad is fixed to the bottom surface of the support plate, and the left and right sides of the top surface of the connecting plate are respectively tightly fitted with two of the rubber pads.

[0010] Furthermore, the two support plates are respectively fixed to the bottom ends of the left and right sides of the inner wall of the storage tube, and the two ends of the reset spring abut against the bottom surface of the top block and the top surface of the support plate.

[0011] Furthermore, a handwheel is fixed to the top of the screw, and a circular hole is opened at the center of the top surface of the receiving tube. The diameter of the circular hole is larger than the diameter of the screw but smaller than the diameter of the nut.

[0012] Furthermore, a clearance hole is provided at the center of the bottom surface of the receiving tube. The clearance hole is circular, and the vertical drop of the clearance hole is greater than the diameter of the connecting plate.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects: This utility model is provided with a sampling mechanism. By setting a reset spring, the sampling capillary can be automatically moved into the inside of the receiving tube after sampling. When the device is taken out, only the receiving tube needs to be operated. In special cases, such as when it is not needed to be used immediately after sampling, the nut can be turned after the sampling capillary moves into the receiving tube, so that the nut is tightly fitted with the top surface of the receiving tube to fix the screw, thus preventing the sampling capillary from moving out of the receiving tube under the influence of other external factors, making it more convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the sampling mechanism of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the connection between the screw and the fixing block of this utility model.

[0017] In the diagram: 1. Storage tube, 2. Observation window, 3. Tube cover, 4. Handle, 5. Rotating rod, 6. Hand ring, 7. Sampling mechanism, 701. Fixing rod, 702. Return spring, 703. Support plate, 704. Rubber pad, 705. Top block, 706. Fixing block, 707. Screw, 708. Nut, 709. Connecting plate, 710. Sampling capillary tube, 711. Handwheel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 A sampling device for cervical cancer screening in this embodiment includes a receiving tube 1, an observation window 2 fixed at the center of the front of the receiving tube 1, a tube cap 3 inserted into the bottom end of the receiving tube 1, a handle 4 fixed at the center of the bottom surface of the tube cap 3, and a sampling mechanism 7 for cervical cancer screening on the receiving tube 1.

[0020] Please see Figure 2-3 To improve the ease of use of the device, the sampling mechanism 7 includes a fixed rod 701 fixed on the left and right sides of the top wall inside the receiving tube 1. A return spring 702 is movably fitted on the top of the outer surface of the fixed rod 701. A support plate 703 is fixed to the bottom of the fixed rod 701. A top block 705 is slidably connected to the top of the outer surface of the fixed rod 701. A fixed block 706 is fixed between the opposite sides of the two top blocks 705. A screw 707 is fixed on the inner peripheral wall of the fixed block 706. A nut 708 is threadedly connected to the top of the outer surface of the screw 707. A connecting plate 709 is fixed to the bottom of the screw 707. Multiple sampling capillaries 710 are evenly fixed on the bottom surface of the connecting plate 709.

[0021] The top surface of the storage tube 1 has rotating rods 5 connected to the left and right sides of the top surface via bearings. The top of the rotating rods 5 is fixed with a wristband 6, which can play an auxiliary role in use and prevent the handwheel 711 from being too far away from the top surface of the storage tube 1, making it inconvenient to use.

[0022] Meanwhile, a rubber pad 704 is fixed to the bottom surface of the support plate 703, and the left and right sides of the top surface of the connecting plate 709 are tightly fitted with the two rubber pads 704 respectively. This can play a buffering role during the process of the connecting plate 709 driving the sampling capillary 710 to move into the storage tube 1.

[0023] In addition, the two support plates 703 are fixed to the bottom ends of the left and right sides of the inner wall of the storage tube 1, and the two ends of the return spring 702 are respectively abutted between the bottom surface of the top block 705 and the top surface of the support plate 703. The elastic potential energy of the return spring 702 can be used to make the connecting plate 709 drive the sampling capillary 710 to automatically move into the interior of the storage tube 1.

[0024] It should be noted that a handwheel 711 is fixed at the top of the screw 707, and a circular hole is opened at the center of the top surface of the storage tube 1. The diameter of the circular hole is larger than the diameter of the screw 707 and smaller than the diameter of the nut 708, so that the screw 707 can be fixed by rotating the nut 708 to fit tightly against the top surface of the storage tube 1 and by increasing the friction.

[0025] It is understandable that a clearance hole is provided at the center of the bottom surface of the storage tube 1. The clearance hole is circular and its diameter is greater than that of the connecting plate 709, so that the connecting plate 709 can drive the sampling capillary 710 out of the storage tube 1 for sampling.

[0026] The working principle of the above embodiments is as follows:

[0027] When using this device for cervical cancer screening, the doctor first uses a vaginal speculum to open the examinee's vagina, then inserts the receiving tube 1 into the speculum, and then pushes the screw 707 through the handwheel 711. During the movement of the screw 707, the sampling capillary 710 is pushed out of the receiving tube 1 through the connecting plate 709, thus facilitating sampling through the sampling capillary 710. After sampling is completed, the handwheel 711 is released. At this time, because the return spring 702 was compressed by the top block 705 during the process of pushing the sampling capillary 710 out of the receiving tube 1 and possesses elastic potential energy, the handwheel 711 is released, and the top block 705... 5. Under the action of the return spring 702, it moves towards the side closer to the wristband 6, thereby driving the sampling capillary 710 on the connecting plate 709 to move into the inside of the receiving tube 1, which helps to protect the sample. Finally, the device can be removed from the examinee's vagina through the receiving tube 1. If the sample does not need to be used immediately, the top of the receiving tube 1 can be sealed by the tube cap 3 to prevent the sample from being contaminated. Then, rotate the nut 708 to make the nut 708 fit tightly with the top surface of the receiving tube 1, thereby fixing the screw 707 and preventing the sampling capillary 710 from moving out of the receiving tube 1 under the influence of other external factors, making it more convenient to use.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for cervical cancer screening comprising a receiving tube (1), characterized in that: An observation window (2) is fixed at the center of the front of the storage tube (1), a tube cap (3) is inserted into the bottom end of the storage tube (1), a handle (4) is fixed at the center of the bottom surface of the tube cap (3), and a sampling mechanism (7) for cervical cancer screening is provided on the storage tube (1). The sampling mechanism (7) includes a fixed rod (701) fixed on the left and right sides of the inner top wall of the receiving tube (1). A return spring (702) is movably fitted on the top of the outer surface of the fixed rod (701). A support plate (703) is fixed at the bottom of the fixed rod (701). A top block (705) is slidably connected to the top of the outer surface of the fixed rod (701). A fixed block (706) is fixed between the opposite sides of the two top blocks (705). A screw (707) is fixed on the inner peripheral wall of the fixed block (706). A nut (708) is threadedly connected to the top of the outer surface of the screw (707). A connecting plate (709) is fixed at the bottom of the screw (707). Multiple sampling capillaries (710) are evenly fixed on the bottom surface of the connecting plate (709).

2. A sampling device for cervical cancer screening according to claim 1, characterized in that: The top surface of the storage tube (1) is connected to a rotating rod (5) on both the left and right sides by bearings, and a wristband (6) is fixed to the top of the rotating rod (5).

3. A sampling device for cervical cancer screening according to claim 1, characterized in that: The bottom surface of the support plate (703) is fixed with a rubber pad (704), and the left and right sides of the top surface of the connecting plate (709) are respectively tightly attached to the two rubber pads (704).

4. A sampling device for cervical cancer screening according to claim 1, characterized in that: The two support plates (703) are respectively fixed to the bottom ends of the left and right sides of the inner wall of the storage tube (1), and the two ends of the reset spring (702) are respectively abutted between the bottom surface of the top block (705) and the top surface of the support plate (703).

5. The sampling device for cervical cancer screening according to claim 1, wherein: A handwheel (711) is fixed to the top of the screw (707), and a circular hole is provided at the center of the top surface of the storage tube (1). The diameter of the circular hole is larger than the diameter of the screw (707) and smaller than the diameter of the nut (708).

6. A sampling device for cervical cancer screening according to claim 1, characterized in that: The storage tube (1) has a relief hole at the center of its bottom surface. The relief hole is circular and its diameter is greater than that of the connecting plate (709).

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