Cervical sampler

Abstract

The utility model provides a kind of cervix sampler, including sampling rod and the sleeve joint part being arranged at its top end, the sleeve joint part is equipped with at least two sampling brush compositions detachable sampling brush head;The bottom of the detachable sampling brush head is equipped with the plug-in part, the plug-in part is inserted in sleeve joint part;It further includes the ejection device of sliding sleeve in the outside of sampling rod, the top of ejection device two sides is equipped with at least two long and short different ejectors. The cervix sampler, by setting the sleeve joint part of sampling rod top end and the detachable sampling brush head combined mode, sampling brush head is equipped with at least two sampling brushes, cooperate the ejector of long and short different in ejection device, in one sampling operation, multiple samples can be collected simultaneously. After sampling is completed, sliding ejection device, ejector can eject detachable sampling brush head, so that plug-in part is smoothly separated from sleeve joint part.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a cervical sampler. Background Technology

[0002] The single-brush sampler commonly used in current clinical cervical cancer screening has significant limitations in clinical application. Liquid-based cytology (TCT) combined with human papillomavirus (HPV) testing is the widely recommended strategy for cervical cancer screening. Currently, the commonly used sampler has only one brush head, requiring two sampling procedures to complete both TCT and HPV sampling. This repeated sampling not only prolongs treatment time and increases medical costs, but more importantly, it causes patients to endure double the discomfort. In special diagnostic and treatment scenarios such as colposcopy, it is more likely to cause patient anxiety, affecting doctor-patient cooperation and objectively hindering the promotion and efficiency of cervical cancer screening programs.

[0003] While existing technologies have attempted to improve sampling efficiency by modifying the material or shape of the sampling brush, they have not fundamentally overcome the design bottleneck of a single sampling unit. The increased instrument wear and disinfection costs caused by repeated sampling, along with the doubled discomfort experienced by patients, contradict the limited resources of primary healthcare institutions and the patient experience. Therefore, current technologies have not yet resolved the fundamental technical obstacle of simultaneous collection of dual-sample testing. Utility Model Content

[0004] This invention proposes a cervical sampler, which solves the technical obstacle in the prior art that makes it difficult to achieve the use of multiple samples with a single sample.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A cervical sampler includes a sampling rod and a sleeve disposed at its top end, the sleeve being provided with a detachable sampling brush head consisting of at least two sampling brushes; the bottom of the detachable sampling brush head is provided with a connector, the connector being inserted into the sleeve.

[0007] It also includes an ejector device that is slidably sleeved outside the sampling rod. The ejector device has at least two ejector parts of different lengths on both sides of its top. The ejector device slides along the outside of the sampling rod so that the ejector parts push against the detachable sampling brush head. The detachable sampling brush head is forced to disengage the connector from the sleeve.

[0008] Furthermore, the ejector device is a cylindrical component that slides vertically along the sampling rod, with the inner diameter of the cylindrical component being larger than the outer diameter of the sleeve component, so that the cylindrical component slides over the sleeve component on the sampling rod.

[0009] Furthermore, the ejector is a rod or column, with one end connected to the ejector device located at the top or side of the ejector device.

[0010] Furthermore, the connector is a semi-circular shell, and the sleeve is a cylindrical structure with a closed bottom. The bottom of the cylindrical structure is provided with a column, and there is a positioning groove between the column and the inner wall of the cylindrical structure to guide the semi-circular shell to be inserted.

[0011] Furthermore, the column tapers from bottom to top, and the semi-circular shell tapers from top to bottom, with the tapering design of the column and the semi-circular shell wedging into each other.

[0012] Furthermore, the inner wall of the semi-circular shell has friction patterns to increase friction with the column, and the outer wall of the column has friction particles to increase friction with the inner wall of the semi-circular shell.

[0013] The beneficial effects of the technical solution provided in this application are as follows:

[0014] 1. This cervical sampler combines a sleeve at the top of the sampling rod with a detachable sampling brush head. The sampling brush head is equipped with at least two sampling brushes, which, along with ejector components of varying lengths in the ejection device, allow for the simultaneous collection of multiple samples in a single sampling operation. After sampling, sliding the ejector device pushes out the detachable sampling brush head, allowing the connector to easily detach from the sleeve. This enables the collected samples to be used for various tests, such as TCT and HPV testing, significantly improving sampling efficiency.

[0015] 2. This cervical sampler breaks through the limitations of traditional single-brush samplers, allowing for multiple sample testing needs to be met with a single sample. This avoids the additional discomfort caused to patients by repeated sampling, reduces patient anxiety, helps improve doctor-patient cooperation, and promotes the efficient promotion of cervical cancer screening programs. It also reduces instrument wear and disinfection costs, providing a more economical and practical sampling solution for primary healthcare institutions. It is expected to be widely used and achieve good results in the field of cervical cancer screening. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cervical sampler of this utility model;

[0018] Figure 2 This is an exploded view of the cervical sampler of this utility model;

[0019] Figure 3 This is a schematic diagram of the detachable sampling brush head of this utility model.

[0020] In the diagram: 10 Sampling rod, 20 Ejection device, 21 Ejection component, 30 Detachable sampling brush head, 31 Connector, 40 Socket, 41 Column, 42 Positioning groove. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figure 1-3 The cervical sampler includes a sampling rod 10 and a sleeve 40 at its top end. The sleeve 40 is provided with a detachable sampling brush head 30 consisting of at least two sampling brushes 32. The bottom of the detachable sampling brush head 30 is provided with a connector 31, which is inserted into the sleeve 40. The sampler also includes an ejector device 20 that is slidably sleeved outside the sampling rod 10. The ejector device 20 has at least two ejector parts 21 of different lengths on both sides of its top. The ejector device 20 slides along the outside of the sampling rod 10, causing the ejector parts 21 to push against the detachable sampling brush head 30. The detachable sampling brush head 30 is forced to disengage the connector 31 from the sleeve 40.

[0023] The detachable sampling brush head 30 consists of at least two sampling brushes 32, with its bottom connector 31 inserted into the socket 40. Ejector members 21 of varying lengths on the ejector device 20 push against the detachable sampling brush head 30, causing the connector 31 to detach from the socket 40. Its function is to ensure stable connection of the sampling brush head 30 during sampling and easy disassembly after sampling, providing a guarantee for achieving multiple samples from a single sample. After sampling is completed, the ejector device 20 is slid, and the ejector members 21 of varying lengths sequentially push against the detachable sampling brush head 30. The resulting different forces are transmitted to the connector 31. When the force exceeds the friction between the connector 31 and the socket 40, the connector 31 detaches from the socket 40, realizing the disassembly of the sampling brush head 30, thereby achieving the purpose of multiple samples from a single sample.

[0024] In some embodiments, the ejector device 20 is a cylindrical component that slides vertically along the sampling rod 10. The inner diameter of the cylindrical component is larger than the outer diameter of the sleeve 40, allowing the cylindrical component to slide over the sleeve 40 on the sampling rod 10. The ejector device 20 is designed as a cylindrical component that slides vertically along the sampling rod 10, with an inner diameter larger than the outer diameter of the sleeve 40. This structural design allows the ejector device 20 to smoothly pass over the sleeve 40 during its sliding motion on the sampling rod 10. Its function is to provide sufficient space and operating path for the disassembly of the detachable sampling brush head 30, ensuring that the ejector device 20 can apply a pushing force to the detachable sampling brush head 30 at a suitable position, thereby achieving smooth disassembly of the sampling brush head 30. Its purpose is to improve the reliability and ease of operation of the sampler by optimizing the dimensional and structural relationship between the ejector device 20 and the sleeve 40, avoiding interference or inability to slide normally between the ejector device 20 and the sleeve 40 during the sliding process. After sampling, when separating the sampled brush head 30 from the socket 40, the operator holds the ejector device 20. Since the ejector device 20 is a cylindrical component extending vertically, and its inner diameter is larger than the outer diameter of the socket 40, it can slide smoothly on the sampling rod 10. As the ejector device 20 slides along the sampling rod 10 towards the sampled brush head 30, it passes over the socket 40, preventing collisions or jamming between them. When the ejector device 20 reaches the appropriate position, the ejector 21 pushes against the detachable sampled brush head 30. Through this pushing force, the connector 31 overcomes the friction between itself and the socket 40, ultimately detaching from the socket 40, thus completing the disassembly of the sampled brush head 30. This structural design ensures that the ejector device 20 accurately reaches the disassembly position during sliding, while avoiding structural interference between the ejector device 20 and the socket 40, ensuring the smoothness and reliability of the entire disassembly process.

[0025] In some embodiments, the ejector 21 is a rod or column, with one end connected to the ejector device 20 located at the top or side of the ejector device 20. The shape of the rod or column ensures that the ejector 21 can stably transmit thrust during sliding, while its flexible connection position on the ejector device 20 optimizes the force transmission path and improves disassembly efficiency. The purpose is to ensure that the sliding of the ejector device 20 is accurately converted into thrust on the detachable sampling brush head 30 through the optimization of the shape and connection position of the ejector 21, thereby achieving reliable disassembly of the sampling brush head 30 and avoiding poor force transmission or disassembly failure due to improper shape or connection position of the ejector 21.

[0026] In some embodiments, the connector 31 is a semi-circular shell, and the sleeve 40 is a bottom-closed cylindrical structure. A column 41 is located at the bottom of the cylindrical structure, and a positioning groove 42 is spaced between the column 41 and the inner wall of the cylindrical structure to guide the insertion of the semi-circular shell. The cooperation between the semi-circular shell and the positioning groove 42 ensures that the connector 31 can be accurately and securely inserted into the sleeve 40, thereby maintaining a stable connection of the detachable sampling brush head 30 during sampling. The structural design of the column 41 and the positioning groove 42 not only improves the connection strength between the connector 31 and the sleeve 40 but also provides a clear guiding path for the insertion and removal of the connector 31, avoiding loosening of the connection or difficulty in disassembly due to improper structural design. When installing the detachable sampling brush head 30, the semi-circular shell of the connector 31 is inserted along the positioning groove 42 at the bottom of the socket 40. The shape of the positioning groove 42 matches the semi-circular shell of the connector 31, ensuring that the connector 31 can smoothly enter the socket 40 and cooperate with the column 41. The column 41 plays a supporting and limiting role to a certain extent, preventing the connector 31 from shifting or rotating during insertion, thereby ensuring the stability of the connection. When it is necessary to disassemble the sampling brush head 30, the ejector 21 of the ejector device 20 pushes against the detachable sampling brush head 30, causing the connector 31 to be subjected to force and overcome the friction between it and the socket 40, and finally detach from the positioning groove 42, completing the disassembly process. This structural design, through a clear guiding and limiting mechanism, ensures the smoothness and reliability of the connection and separation process between the connector 31 and the socket 40, meeting the needs of single sampling and multiple sample use.

[0027] In some embodiments, the column 41 tapers upwards, and the semi-circular shell tapers downwards, with the tapered design of the column 41 and the semi-circular shell wedging into each other. This structural design makes the connection between the connector 31 and the socket 40 tighter and more stable. Its function is to enhance the friction and connection strength between the connector 31 and the socket 40, preventing the sampling brush head 30 from loosening due to vibration or external force during sampling, ensuring the reliability of the sampling operation and the integrity of sample collection. The tapered wedging design optimizes the fit between the connector 31 and the socket 40, allowing the detachable sampling brush head 30 to be separated more easily by overcoming friction when disassembly is required, improving the ease of operation and reliability of the sampler. When the semi-circular shell of the connector 31 is inserted into the socket 40, the tapered structure of the semi-circular shell and the tapered structure of the column 41 wedge into each other. As the insertion depth increases, the contact area between the two gradually increases, thereby gradually increasing the friction and connection strength. During sampling, this tapered wedge design effectively prevents the sampling brush head 30 from loosening due to external force or vibration, ensuring the stability of sample collection. When it is necessary to disassemble the sampling brush head 30, the ejector 21 of the ejector device 20 pushes against the sampling brush head 30, and the resulting thrust allows the connector 31 to overcome the friction between itself and the column 41. Due to the tapered design, the thrust only needs to overcome the maximum friction within a certain range to achieve separation, making the disassembly process more effortless and convenient. This structural design, by optimizing the fit between the connector 31 and the socket 40, ensures the reliability and convenience of the sampler during sampling and disassembly.

[0028] In some embodiments, the inner wall of the semi-circular shell has friction textures to increase friction with the column 41, and the outer wall of the column 41 has friction particles to increase friction with the inner wall of the semi-circular shell. Increased friction ensures a more stable connection between the connector 31 and the socket 40 during sampling, preventing the sampling brush head 30 from loosening or falling off due to vibration or external force, thereby ensuring the integrity and reliability of sample collection. The dual effect of the friction textures and friction particles enhances the connection stability between the connector 31 and the column 41. Furthermore, when disassembly is required, separation can be achieved simply by overcoming the increased friction, ensuring the reliability and convenience of the sampler during sampling and disassembly. When the semi-circular shell of the connector 31 is inserted into the socket 40, the friction textures on the inner wall of the semi-circular shell contact the friction particles on the outer wall of the column 41, generating significant friction. This friction effectively resists external forces and vibrations during sampling, preventing the sampling brush head 30 from loosening or falling off and ensuring the stability of sample collection.

[0029] In some embodiments, the sampling brush 32 is arranged from top to bottom with multiple soft bristles arranged in a stepped, equidistant ring, and the soft bristles are covered with tendrils to increase the contact area. During sampling, the progressively increasing height of the soft bristles of the sampling brush 32 allows the bristles to conform to the shape of the cervical surface. The progressively increasing bristles can cover different depths and areas of the cervix, thereby improving the comprehensiveness of sample collection. When the tendrils on the soft bristles contact the cervical surface, they can penetrate into the tiny depressions and folds of the cervical surface, increasing the contact area with cervical cells, thereby collecting more cell and virus samples. This structural design, by optimizing the physical characteristics of the sampling brush 32, ensures that a sufficient amount of sample can be collected efficiently during the sampling process, meeting the needs of TCT and HPV testing, and improving the reliability and accuracy of the test results.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cervical sampler, characterized in that: It includes a sampling rod (10) and a socket (40) provided at its top end. The socket (40) is provided with a detachable sampling brush head (30) consisting of at least two sampling brushes (32). The bottom of the detachable sampling brush head (30) is provided with a plug (31), which is inserted into the socket (40). It also includes an ejector device (20) that is slidably sleeved outside the sampling rod (10). The ejector device (20) has at least two ejector parts (21) of different lengths on both sides of its top. The ejector device (20) slides along the outside of the sampling rod (10) so that the ejector parts (21) push against the detachable sampling brush head (30). The detachable sampling brush head (30) is forced to drive the plug (31) to disengage from the sleeve (40).

2. The cervical sampler as described in claim 1, characterized in that, The ejector device (20) is a cylindrical component that slides up and down along the sampling rod (10). The inner diameter of the cylindrical component is larger than the outer diameter of the sleeve (40), so that the cylindrical component slides over the sleeve (40) on the sampling rod (10).

3. The cervical sampler as described in claim 1, characterized in that, The ejector (21) is a rod or column, and one end of it is connected to the ejector (20) at the top or side of the ejector (20).

4. The cervical sampler as described in claim 1, characterized in that, The plug-in component (31) is a semi-circular shell, and the sleeve component (40) is a cylindrical structure with a closed bottom. A column (41) is provided at the bottom of the cylindrical structure, and a positioning groove (42) for guiding the semi-circular shell to be inserted is spaced between the column (41) and the inner wall of the cylindrical structure.

5. The cervical sampler as described in claim 4, characterized in that, The column (41) tapers from bottom to top, and the semi-circular shell tapers from top to bottom. The tapering design of the column (41) and the semi-circular shell wedges together.

6. The cervical sampler as described in claim 4, characterized in that, The inner wall of the semi-circular shell has friction patterns to increase friction with the column (41), and the outer wall of the column (41) has friction particles to increase friction with the inner wall of the semi-circular shell.

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