A reproductive secretion sampling device
The fully sealed design of the reproductive secretion sampling device solves the problems of cotton swab contamination and activity loss during the sampling process, achieving efficient and accurate sample collection and testing.
Patent Information
- Application Number
- CN202511622107.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2045-11-07
AI Technical Summary
In the current process of collecting reproductive secretions, the cotton swabs are easily contaminated by the external environment and lose the activity of pathogens during the transfer process, which affects the accuracy of the test results.
A reproductive secretion sampling device was designed. Through the coordinated use of the release structure, the tube and the sampling container, the sampling swab is sealed throughout the entire process from the extension of the swab to the collection. Combined with the polygonal sealing cap and the screw-on sleeve structure, it ensures that the sample is not exposed to the external environment during the transfer process, thus preventing contamination and loss of activity.
It effectively reduces the risk of sample contamination, ensures pathogen activity, improves the accuracy of test results and the reliability of operation, is compatible with sampling containers of different sizes, and simplifies the operation process.
Smart Images
Figure CN121059218B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of medical diagnostic sampling technology, more particularly to a reproductive secretion sampling device. BACKGROUND
[0002] In the field of reproductive medicine and pathogen detection, cervical canal secretion sampling is a key link for diagnosing chlamydia, neisseria gonorrhoeae and other reproductive tract infections. The sterility and pathogen activity of the sample directly determine the accuracy of the test results. In clinical practice, the sampling of cervical canal secretion for chlamydia and neisseria gonorrhoeae must strictly follow the three-step principle of "sterile operation-precise collection-active preservation". First, a sterile saline cotton swab is used to clean the external os of the cervix to remove the interference of vaginal secretion. If the bacteria and epithelial cells in the vaginal secretion mix into the cervical canal sample, it may cause false negative or false positive results. For example, an excessive amount of lactobacillus in the vagina can mask the chlamydia antigen signal, reducing the detection rate by 15-20%.
[0003] However, the existing process has a significant defect in the "sampling transfer" link: the sterile cervical canal cotton swab after sampling needs to be taken out from the vagina and then manually placed into a test tube containing pathogen preservation liquid (such as a chlamydia detection tube containing pH 7.2-7.4 phosphate buffer for maintaining chlamydia activity). This transfer process takes at least 3-5 seconds, during which the cotton swab is completely exposed to the external environment. On the one hand, airborne bacteria (such as staphylococcus and streptococcus) may adhere to the surface of the cotton swab, especially in environments with high outpatient traffic and poor air circulation, the sample contamination rate can reach 8-12%. On the other hand, if the hand accidentally touches the cotton swab rod or head during operation, it will introduce pathogenic microorganisms on the skin surface, further interfering with the test results. In addition, if the cotton swab is exposed to room temperature (>25℃) for a long time during the transfer process, the activity of the pathogen will decrease before the addition of the preservation liquid. Studies have shown that the activity of chlamydia will decrease by 10% after 5 seconds of exposure to room temperature, and by 23% after 10 seconds of exposure, directly affecting the sensitivity of subsequent nucleic acid amplification or antigen detection.
[0004] The existing solutions mostly rely on the proficiency of the operator (such as fast transfer and wearing double gloves), but cannot fundamentally eliminate the risk of environmental exposure. With the continuous improvement of the sensitivity and specificity requirements of reproductive tract infection detection (such as single copy level detection for nucleic acid detection), the contamination and activity loss problems in the sample transfer link have become increasingly prominent. In view of this, we propose a reproductive secretion sampling device. SUMMARY
[0005] The present application aims to provide a reproductive secretion sampling device to solve the technical problem that the sampling of cervical canal secretion is easily affected by external environment.
[0006] To solve the above technical problems, the present application provides the following technical solution: a reproductive secretion sampling device, comprising an operating handle sleeve, one end of the operating handle sleeve is provided with a sampling sleeve, the inner periphery of the sampling sleeve is provided with a sampling container, and a notch is formed at the top of the sampling sleeve and is in communication with the port of the sampling container;
[0007] The other end of the operating handle sleeve is provided with an elongated handle sleeve, the end of the elongated handle sleeve away from the sampling sleeve is provided with a sampling cotton swab, the sampling cotton swab is composed of a cotton head and a short rod, the cotton head is made of adsorbing cotton material, and a convex head is integrally formed at one end of the short rod.
[0008] The outer periphery of the sampling cotton swab is provided with a loose clamping structure, the loose clamping structure comprises a plurality of bending plates, the plurality of bending plates are arranged in an annular array, the bending plates are made of elastic metal material, the bottom end of the bending plate is connected with a fixing buckle, one side of the fixing buckle is rotatably connected with a traction rod, a synchronous ring is hingedly connected between one end of the plurality of traction rods, a displacement ring is arranged below the synchronous ring, the displacement ring is integrally formed with a sliding rod which is limited to slide with the operating handle sleeve, and a plurality of extension rods are fixed between the displacement ring and the synchronous ring.
[0009] Preferably, the bending plate as a whole is an arc segment which is curved towards the direction of the sampling cotton swab, and the bending plate has a multiple wave-shaped structure along the arc segment trajectory.
[0010] Preferably, the fixing buckle comprises an upper straight sticking segment, a lower straight sticking segment is arranged below the upper straight sticking segment, an inner concave arc segment is connected between the upper straight sticking segment and the lower straight sticking segment, and a recessed space for accommodating the convex head is arranged at one side of the inner concave arc segment.
[0011] Preferably, a fixing member is arranged inside the fixing buckle, the fixing member is composed of a sharp arc and a barb protrusion, the sharp arc is an acute-angled arc which is inclined towards the direction of the sampling sleeve, the sharp arc is made of elastic material, the barb protrusion is located at the arc inflection point of the sharp arc, and the barb protrusion is a barb stress point.
[0012] Preferably, a through pipe is arranged in the inner periphery of the operating handle sleeve, an extension edge which is fixed with the inner top wall of the operating handle sleeve is integrally formed at the top of the through pipe, a plurality of horizontal grooves for the extension rods to slide are formed in the upper half of the through pipe, and the openings of the through pipe which extend and communicate with the elongated handle sleeve and the sampling container form a guide channel.
[0013] Preferably, an inner wall space is formed between the through pipe and the operating handle sleeve, and a plurality of return springs are arranged in the inner wall space.
[0014] Preferably, a plurality of sealing covers are rotatably connected to the inner wall of the slot of the sampling sleeve, the plurality of sealing covers form a complete polygonal seal, a torsion spring is connected between the sealing cover and the inner wall of the slot, and a plurality of lower top columns are fixed between the top of the sealing cover and the bottom of the displacement ring.
[0015] Preferably, the sampling sleeve comprises an outer sampling sleeve, an inner sampling sleeve is fixed to the inner wall of the outer sampling sleeve, a plurality of through cavities are formed in the outer sampling sleeve, a plurality of inner pressure cavities are formed in the inner sampling sleeve, a flexible and elastic pressure receiving strip is arranged between the inner pressure cavities and the through cavities, a fixed outer ring is fixed to the outer wall of the top end of the outer sampling sleeve, and a screwing sleeve is slidably limited on the outer wall of the fixed outer ring.
[0016] Preferably, one side edge of the pressure receiving strip is close to the inner sampling sleeve and forms a bonding area, the bonding area is bonded and fixed with the inner sampling sleeve, a plurality of protruding parts penetrating through the through cavities are integrally formed on the other side of the pressure receiving strip, and a plurality of screwing blocks are arranged on the inner wall of the screwing sleeve, and the screwing blocks can extrude the protruding parts when the screwing sleeve rotates.
[0017] Preferably, a plug ring is mounted at the end of the elongated handle sleeve, a port cover is fixed to one side of the plug ring, the port cover is a semicircular structure formed by a plurality of petals, the petals are composed of a layered structure of a reset outer layer, a moisture absorbing inner layer and a reset inner layer from inside to outside, the reset outer layer and the reset inner layer are made of an elastic reset material, the moisture absorbing inner layer is made of a moisture absorbing material, and the reset outer layer is provided with a moisture absorbing port in communication with the moisture absorbing inner layer.
[0018] Compared with the prior art, the application has the following beneficial effects:
[0019] 1、The present application realizes the whole sealing process of the sampling cotton swab from extending sampling to storage through the cooperation of the loose clamping structure, the through pipe and the sampling container. When sampling, the sampling cotton swab extends from the elongated handle sleeve into the cervical canal, and then falls directly into the sampling container along the through pipe after the clamping is released, without being exposed to the external environment. At the same time, the sealing cover of the sampling sleeve slot remains closed when not sampling, and the rubber layer forms a flexible seal to prevent external pollutants from entering. When the sampling cotton swab falls, the sealing cover is opened synchronously, and then automatically resets after falling to seal, thereby completely isolating airborne bacteria and hand contact pollution, greatly reducing the risk of sample contamination, protecting the activity of pathogens, solving the problem of exposure pollution in the transfer link after traditional sampling, and solving the problem that cervical canal secretion sampling is easily affected by the external environment.
[0020] 2、The application also forms a double fixing mechanism through the fixing part and the loose card structure. When installing the sampling cotton swab, only the short rod needs to be directly inserted. The sharp arc of the elastic material drives the barb protrusion to avoid. After insertion, it is automatically reset to fit the short rod. The fixed buckle is matched with the protruding head to realize one-way limiting and axial fixing, avoid the cotton swab from falling off or moving during sampling, and remove the fixing by pulling the synchronous ring after sampling. The barb protrusion changes with the sharp arc to avoid, and does not hinder the cotton swab from falling. Without complex adjustment steps, the installation operation is simplified, the cotton swab is stable during sampling, the reliability and efficiency of clinical operation are improved, and the problems of traditional fixing methods, such as complexity and poor stability, are solved.
[0021] 3、The application also forms a polygonal sealing structure through the splicing of the plurality of sealing covers at the sampling sleeve slot. When not sampling, it is closed under the action of the torsion spring, and the rubber layer is tightly fitted with the slot. Even if the device is tilted during sampling, the storage liquid in the sampling container can also be prevented from overflowing from the slot, so that the sample is not lost or diluted due to solution pouring. When the sampling cotton swab falls, the sealing cover is synchronously opened by the lower top column, and is automatically reset to seal after storage. The sealing property of the sampling container is maintained throughout the process, the angle adjustment requirement in clinical operation is effectively met, the sample storage environment is stable, and the problem of traditional sampling containers that are prone to pouring when tilted is solved.
[0022] 4、The application also adjusts the deformation of the pressure strip by rotating the rotating and tightening sleeve, and adapts to sampling containers of different diameters. When installing, the container is clamped into the inner sampling sleeve, and the rotating and tightening sleeve is rotated to make the extrusion block extrude the protruding part of the pressure strip. The pressure strip deforms inward to fit the outer periphery of the container, and is fixed by balanced extrusion force. The container can be removed by reverse rotation, and the sampling sleeve can be adapted to various specifications of test tubes, thereby improving the fixing stability and the adaptability of the equipment to different detection requirements, and solving the problems of poor adaptability and poor stability of the traditional plug-in method.
[0023] 5、The application also adopts a multi-flap layered structure for the port cover at the end of the elongated handle sleeve. The reset outer layer and the reset inner layer are made of elastic material, and the moisture-absorbing inner layer can absorb secretions. When the sampling cotton swab is extended, the port cover deforms and opens under the pushing force, without affecting sampling. After sampling, the cotton swab is stored, and the elastic material automatically resets and closes the port. During the process, the vaginal secretions are absorbed by the moisture-absorbing inner layer through the moisture-absorbing port of the reset outer layer, so that the secretions are prevented from entering the inside of the elongated handle sleeve and mixing into the cervical canal sample, reducing the interference of bacteria and epithelial cells, improving the purity of the sample, avoiding false negative and false positive caused by pollution of vaginal secretions, and ensuring the accuracy of the detection result. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of the application;
[0025] Figure 2 It is an internal structure schematic diagram of the application;
[0026] Figure 3 The matching structure diagram of the outer sample sleeve and the pressure bar in the application;
[0027] Figure 4 The overall split structure diagram of the sample sleeve in the application;
[0028] Figure 5 The structure diagram of the pressure bar in the application;
[0029] Figure 6 The arrangement structure diagram of the sealing cover in the application;
[0030] Figure 7 The structure diagram of a single sealing cover in the application;
[0031] Figure 8 The overall connection structure diagram of the internal structure of the handle sleeve in the application;
[0032] Figure 9 The structure diagram of the card loosening structure in the application;
[0033] Figure 10 The structure diagram of the through pipe in the application;
[0034] Figure 11 The matching structure diagram of the sample cotton swab and the fixing buckle in the application;
[0035] Figure 12 The connection structure diagram of a single bending plate and the fixing buckle in the application;
[0036] Figure 13 The structure diagram of the fixing buckle in the application;
[0037] Figure 14 The half-section structure diagram of the port cover in the application.
[0038] Explanation of the figure marks:
[0039] 1, handle sleeve; 2, sample sleeve; 3, sample container; 4, elongated handle sleeve; 5, sample cotton swab; 501, cotton head; 502, short rod; 503, convex head; 6, card loosening structure; 7, fixing piece; 8, through pipe; 9, return spring; 10, sealing cover; 11, torsion spring; 12, lower top column; 13, port cover; 14, plug ring;
[0040] 201. Outer sample sleeve; 202. Inner sample sleeve; 203. Through cavity; 204. Inner pressure cavity; 205. Pressure strip; 2051. Adhesive area; 2052. Protrusion; 206. Fixing outer ring; 207. Tightening sleeve; 208. Extrusion block; 601. Bending plate; 602. Fixing buckle; 6021. Upper straight section; 6022. Lower straight section; 6023. Concave arc section; 603. Traction rod; 604. Synchronization ring; 605. Displacement ring; 606. Sliding rod; 607. Extension rod; 701. Sharp arc; 702. Barbed protrusion; 81. Extension edge; 82. Horizontal groove; 131. Reset outer layer; 132. Moisture-absorbing inner layer; 133. Reset inner layer. Detailed Implementation
[0041] like Figures 1 to 14 As shown, the present invention relates to a reproductive secretion sampling device, including an operating handle sleeve 1, a sampling sleeve 2 installed at one end of the operating handle sleeve 1, a sampling container 3 fixedly inserted into the inner circumference of the sampling sleeve 2, the sampling container 3 can be selected according to the actual situation, preferably a test tube, and a slot communicating with the port of the sampling container 3 is provided on the top of the sampling sleeve 2.
[0042] The other end of the operating handle sleeve 1 is equipped with a slender handle sleeve 4. The end of the slender handle sleeve 4 away from the sampling sleeve 2 is provided with a sampling cotton swab 5. The sampling cotton swab 5 is composed of a cotton head 501 and a short rod 502. The cotton head 501 is made of absorbent cotton material, and one end of the short rod 502 is integrally formed with a protrusion 503.
[0043] The sampling swab 5 is surrounded by a release structure 6, which includes multiple bending and shifting plates 601 arranged in a ring array. The bending and shifting plates 601 are made of elastic metal. A fixing buckle 602 is connected to the bottom of the bending and shifting plate 601. A traction rod 603 is rotatably connected to one side of the fixing buckle 602. A synchronization ring 604 is hinged between one end of the multiple traction rods 603. A displacement ring 605 is provided below the synchronization ring 604. The displacement ring 605 is integrally formed with a sliding rod 606 that slides and limits the operation handle sleeve 1. Several extension rods 607 are fixed between the displacement ring 605 and the synchronization ring 604. The displacement ring 605 slides and limits the operation handle sleeve 1 through the sliding rod 606. The extension rods 607 connect the synchronization ring 604 and the displacement ring 605 to maintain the overall stability of the release structure 6.
[0044] The bending plate 601 is an arc-shaped segment that bends toward the sampling swab 5. The bending plate 601 has a multi-wave structure along the arc-shaped segment. The fixing buckle 602 includes an upper straight section 6021. Below the upper straight section 6021 is a lower straight section 6022. The lower straight section 6022 and the upper straight section 6021 are connected by an inwardly concave arc section 6023. One side of the inwardly concave arc section 6023 is a recessed space to accommodate the protrusion 503.
[0045] Working principle: the short rod 502 and the convex head 503 of the sampling cotton swab 5 are stably clamped by the loose clamping structure 6: a plurality of ring array distributed bending plates 601 (elastic metal material) form a radial wrapping force on the short rod 502 due to their own "bending arc segment towards the sampling cotton swab 5" characteristics; at the same time, the inner concave arc segment 6023 (the recessed space between the upper straight section 6021 and the lower straight section 6022) of the fixed buckle 602 accurately accommodates the convex head 503, further limits the axial displacement of the sampling cotton swab 5 through mechanical clamping, and ensures that it is stably located at the end of the slender handle sleeve 4.
[0046] When the cervical canal secretion sampling needs to be performed, the operator pushes the synchronous ring 604 forward (towards the slender handle sleeve 4 direction), the synchronous ring 604 drives the displacement ring 605 to move forward synchronously through the extension rod 607, the sliding rod 606 smoothly slides along the limiting structure (such as sliding groove) of the operation handle sleeve 1, ensuring that the synchronous ring 604 does not deviate, when the synchronous ring 604 moves forward, the hinged multiple traction rods 603 rotate, pulling the fixed buckle 602 outward, the fixed buckle 602 drives the bending plate 601 to move synchronously: because the bending plate 601 is made of elastic metal material and has a multiple wave shape structure, its arc segment can slightly expand outward under external force, releasing the wrapping force on the short rod 502; at the same time, the inner concave arc segment 6023 of the fixed buckle 602 still maintains slight contact with the convex head 503, only releasing the axial restriction, guiding the sampling cotton swab 5 to extend along the slender handle sleeve 4 under the pushing force of the synchronous ring 604, after the cotton head 501 of the sampling cotton swab 5 extends out of the slender handle sleeve 4, it can deeply enter the cervical canal to absorb the secretion, completing the sampling operation.
[0047] After sampling is completed, the operator pulls the synchronous ring 604 backward (towards the sampling sleeve 2 direction), triggering the loose clamping structure 6 to release the clamping of the sampling cotton swab 5, so that it automatically falls into the sampling container 3, when the synchronous ring 604 moves backward, the traction rod 603 reversely rotates, pushing the fixed buckle 602 and the bending plate 601 to move downward as a whole (along the axis of the through pipe 8 towards the sampling sleeve 2 direction), during the downward movement of the bending plate 601, the elastic metal material of the bending plate 601 restores its initial bending state due to the rebound force, but because the whole position moves downward, it cannot wrap the short rod 502 of the sampling cotton swab 5; at the same time, the inner concave arc segment 6023 of the fixed buckle 602 is completely separated from the convex head 503, completely canceling the clamping and limiting of the sampling cotton swab 5, the sampling cotton swab 5 loses the clamping force and falls under its own gravity and the slight shaking of the operator, finally, the sampling cotton swab 5 (including the cotton head 501 absorbing the secretion) automatically falls into the sampling container 3 through the slot at the top of the sampling sleeve 2, completing the sealed storage of the sample, without exposure to the external environment throughout, avoiding pollution and pathogen activity loss.
[0048] The above can realize non-contact sampling with the external environment, but the fixation of the sampling cotton swab 5 is relatively troublesome and the stability of the fixation is relatively weak, aiming at this point.
[0049] The fixed buckle 602 is internally provided with a fixing part 7, which is composed of a sharp arc 701 and a barb protrusion 702. The sharp arc 701 is an acute-angled arc that is inclined towards the sampling sleeve 2. The sharp arc 701 is made of elastic material. The barb protrusion 702 is located at the inflection point of the sharp arc 701. The barb protrusion 702 is a barb stress point.
[0050] Working principle: The fixing part 7 is integrated in the fixed buckle 602. The sharp arc 701 is arranged in an acute-angled arc (30°-45°) that is inclined towards the sampling sleeve 2, and is made of elastic material (such as medical-grade elastic plastic with a Shore hardness of 50-60A). In a natural state, the barb protrusion 702 (triangular protrusion with a height of 0.3-0.5mm) at the inflection point of the sharp arc 701 protrudes towards the central axis of the synchronous ring 604, forming an inwardly retracting elastic barb array. At this time, the minimum distance between the barb protrusions 702 is slightly smaller than the diameter of the short rod 502 of the sampling cotton swab 5 (for example, when the short rod diameter is 1mm, the interval is set to 0.8-0.9mm), reserving deformation space for subsequent insertion.
[0051] When installing the sampling cotton swab 5, the operator only needs to insert the short rod 502 at one end (with a protrusion 503) along the central axis of the synchronous ring 604 towards the elongated handle sleeve 4. When the short rod 502 contacts the barb protrusion 702, it will exert an outward pushing force on the inflection point of the sharp arc 701. Because the sharp arc 701 is elastic, it will slightly deform radially outward (deformation amplitude 0.2-0.3mm) after being pushed, driving the barb protrusion 702 to avoid outwardly, so that the short rod 502 can smoothly pass through the fixing part 7. The entire process does not require additional adjustment of the loose card structure 6, and can be completed by "direct insertion + elastic avoidance", solving the problem of complicated operation of traditional fixing methods.
[0052] When the short rod 502 is completely inserted (the protrusion 503 reaches the inner concave arc segment 6023 of the fixed buckle 602), the sharp arc 701 restores to the initial state under its own elasticity, and the barb protrusion 702 protrudes towards the central axis again, tightly fitting the outer periphery of the short rod 502.
[0053] One-way limiting mechanism: Because the sharp arc 701 is inclined towards the sampling sleeve 2, the stress surface of the barb protrusion 702 is also directed towards the sampling sleeve 2. When the sampling cotton swab 5 has a displacement trend towards the sampling sleeve 2 due to sampling operation (such as slight pulling when deep into the cervical canal), the barb protrusion 702 will be embedded in the outer periphery of the short rod 502 (or in contact with the edge of the protrusion 503), forming a rigid barrier that cannot deform outwardly to avoid, completely limiting the reverse displacement of the sampling cotton swab 5.
[0054] Double fixation cooperation: the one-way limiting and fixing of the barbed convex point cooperates with the clamping of the convex head 503 by the concave arc segment 6023 in the fixing buckle 602, the former prevents the sampling cotton swab 5 from falling off, and the latter limits the axial movement of the sampling cotton swab 5, so that the sampling cotton swab 5 remains stable during the sampling process (such as the residence of the cotton head 501 when absorbing secretions, pulling out), avoiding sampling failure or sample contamination caused by loose fixation.
[0055] When the sampling is completed and the synchronization ring 604 is pulled, the fixing buckle 602 moves downward to release the clamping of the convex head 503, the short rod 502 will move towards the sampling sleeve 2, at this time the short rod 502 exerts a pushing force on the barbed convex point 702 towards the sampling sleeve 2: because the inclined direction of the sharp arc 701 is consistent with the direction of the pushing force, the barbed convex point 702 can elastically deform outward along the sharp arc 701 to avoid hindering the falling of the short rod 502, ensuring that the sampling cotton swab 5 can smoothly fall into the sampling container 3 along the through pipe 8, realizing the full-process adaptation of "convenient installation-stable fixation-smooth release".
[0056] In order to further make the sampling of the sampling cotton swab 5 more smooth.
[0057] The inner wall of the operation handle sleeve 1 is provided with a through pipe 8, the top of the through pipe 8 is integrally formed with an extension edge 81 fixed to the inner top wall of the operation handle sleeve 1, a plurality of horizontal grooves 82 for sliding the extension rod 607 are formed in the upper half of the through pipe 8, the opening of the through pipe 8 extending along the inner wall of the through pipe 8 connects the elongated handle sleeve 4 and the sampling container 3 to form a guide channel, reserving a path for subsequent storage of the sampling cotton swab 5, and an inner wall space is formed between the through pipe 8 and the operation handle sleeve 1, and a plurality of return springs 9 are arranged in the inner wall space.
[0058] Although the slot is in communication with the port of the sampling container 3, during the sampling process, there will be an inclined action, in order to avoid the internal solution from pouring during sampling, a cover body is designed for this point.
[0059] A plurality of sealing covers 10 are rotatably connected to the inner wall of the slot of the sampling sleeve 2, a rubber layer is bonded to the outer circle of the plurality of sealing covers 10, the plurality of sealing covers 10 form a complete polygonal seal, a torsion spring 11 is connected between the sealing cover 10 and the inner wall of the slot, the torsion spring 11 serves as an automatic reset, and a plurality of lower top columns 12 are fixed between the top of the sealing cover 10 and the bottom of the displacement ring 605.
[0060] Working principle: when the device is not sampling, the plurality of sealing covers 10 at the slot of the sampling sleeve 2 remain closed under the action of the torsion spring 11.
[0061] Polygonal sealing structure: multiple sealing covers 10 (such as 4-6, arranged in a ring) are spliced to form a complete polygonal seal, completely covering the notch of the sampling sleeve 2, and the rubber layer bonded to the outer circle of the sealing cover 10 tightly fits the inner circle of the notch, forming a flexible seal. Even if the device is tilted during sampling (such as angle adjustment during clinical operation), it can still block the solution (such as pathogen preservation solution) inside the sampling container 3 from spilling out of the notch, completely solving the problem of solution pouring caused by tilting.
[0062] Reset guarantee of torsion spring: the torsion spring 11 connected between the sealing cover 10 and the inner wall of the notch is always in a pre-torsion state, providing continuous closing force for the sealing cover 10, avoiding loosening of the sealing cover 10 due to vibration or slight impact, and ensuring stable sealing state.
[0063] When the sampling is completed, the operator pulls the synchronization ring 604 backward to release the fixation of the sampling swab 5, the action of the loose card structure 6 is transmitted to the sealing cover 10 through the lower jack 12, realizing the automatic opening of the sealing cover 10. When the synchronization ring 604 moves backward, the displacement ring 605 is driven by the extension rod 607 to move backward along the operation handle sleeve 1 (towards the sampling sleeve 2), and the multiple lower jacks 12 fixed at the bottom of the displacement ring 605 are synchronized to move downward, accurately acting on the top of each sealing cover 10. During the downward movement of the lower jack 12, a downward thrust is applied to the sealing cover 10, which overcomes the closing force of the torsion spring 11, causing the sealing cover 10 to rotate outward around the rotation connection point (such as the rotation shaft) of the notch inner wall. The multiple sealing covers 10 are synchronized to open, and the originally closed polygonal seal forms a channel with a diameter matching that of the sampling swab 5, reserving space for the falling of the sampling swab 5.
[0064] The action of the lower jack 12 opening the sealing cover 10 is completely synchronized with the action of releasing the fixation of the sampling swab 5. When the sealing cover 10 is opened to the maximum angle (the channel is completely opened), the loose card structure 6 just completes the release of the clamping of the sampling swab 5 (the lower fixation buckle 602 moves downward to disengage from the protrusion 503, and the bent plate 601 loses the wrapping force on the short rod 502). The sampling swab 5 (including the cotton head 501 absorbing the excretion) loses fixation and falls along the guide channel of the through pipe 8 under the action of its own gravity, passes through the channel formed by the opening of the sealing cover 10, and directly falls into the sampling container 3, without any jamming throughout the process.
[0065] After the sampling cotton swab 5 falls into the sampling container 3, the operator stops the rear pulling force on the synchronous ring 604, the displacement ring 605 reversely moves under the rebounding action of the reset spring 9 in the operation handle sleeve 1, the lower top column 12 is withdrawn upward to disengage the sealing cover 10, the sealing cover 10 loses the pushing force of the lower top column 12, the pre-torsion elastic force of the torsion spring 11 is released, the sealing cover 10 is reversely flipped to re-splice the polygonal seal, the rubber layer is again attached and sealed with the inner circumferential groove, and the subsequent transfer of the sampling container 3 is avoided, so that the pollutants in the external environment enter the container, and the sterility of the sample is further ensured.
[0066] In summary, the structure realizes the automatic process of "sealing-opening-resetting" through the initial sealing of the sealing cover 10 against tilting, in cooperation with the linkage opening of the lower top column 12 and the loose card structure, which not only solves the problem of solution pouring when the sampling is tilted, but also ensures that the sampling cotton swab 5 is efficiently and non-pollutedly dropped into the sampling container 3, and improves the sealing and convenience of sample collection.
[0067] The ordinary carding method has poor fixing stability, and different sampling container diameters, in order to improve the stability and applicability, the following structure is designed.
[0068] The sampling sleeve 2 comprises an outer sampling sleeve 201, the inner sampling sleeve 202 is fixed to the inner circumferential surface of the outer sampling sleeve 201, the outer sampling sleeve 201 is provided with a plurality of through cavities 203, the inner sampling sleeve 202 is provided with a plurality of inner pressure cavities 204, the flexible and elastic pressure receiving strips 205 are arranged between the inner pressure cavities 204 and the through cavities 203, the outer sampling sleeve 201 is provided with a fixed outer ring 206 at the top end, and the outer circumferential surface of the fixed outer ring 206 is slidably limited by the outer circumferential surface of the rotating sleeve 207.
[0069] The flexible and elastic pressure receiving strips 205 are attached to the inner sampling sleeve 202 at one side edge and form an adhesive area 2051, the adhesive area 2051 is fixedly attached to the inner sampling sleeve 202, and a plurality of protruding portions 2052 of the pressure receiving strips 205 are integrally formed at the other side, the rotating sleeve 207 is provided with a plurality of rotating extrusion blocks 208 on the inner circumferential surface, and the rotating extrusion blocks 208 can extrude the protruding portions 2052 when the rotating sleeve 207 rotates.
[0070] Working principle: when the sampling container 3 is not installed, the outer sampling sleeve 201 and the inner sampling sleeve 202 of the sampling sleeve 2 are coaxially nested, the inner pressure cavities 204 on the inner circumferential surface of the inner sampling sleeve 202 are in a natural state, the flexible and elastic pressure receiving strips 205 are fixed to the inner sampling sleeve 202 through the adhesive area 2051, and the protruding portions 2052 on the other side extend outward to the outer circumferential surface of the outer sampling sleeve 201 through the through cavities 203 of the outer sampling sleeve 201, at this time, the pressure receiving strips 205 do not deform, the accommodating space formed by the inner pressure cavities 204 has the maximum diameter, and can adapt to the sampling container 3 with a larger diameter, and sufficient space is reserved for subsequent installation.
[0071] When installing different caliber sampling container 3, the sampling container 3 is clamped into the inner sampling sleeve 202 from the bottom of the sampling sleeve 2, and then the operator rotates the rotating sleeve 207 on the outer periphery of the outer sampling sleeve 201 (the rotating sleeve 207 is limited to slide with the fixed outer ring 206, to ensure that it does not deviate axially during rotation).
[0072] When the rotating sleeve 207 rotates, the multiple rotating extrusion blocks 208 on the outer periphery of the rotating sleeve 207 (corresponding to the protrusions 2052) rotate synchronously with the rotating sleeve 207, gradually approaching and extruding the protrusions 2052 of the pressure receiving strip 205.
[0073] The rotating extrusion blocks 208 apply a radial inward extrusion force to the protrusions 2052. Due to the flexibility and elasticity of the pressure receiving strip 205, the extrusion force causes the pressure receiving strip 205 to deform inwardly along the cavity 203 towards the inner pressure cavity 204 of the inner sampling sleeve 202, breaking the initial natural state.
[0074] The pressure receiving strip 205 deforms under the extrusion of the rotating extrusion blocks 208, and the side close to the inner pressure cavity 204 gradually approaches and adheres to the outer periphery of the sampling container 3, achieving the adaptation and fixation of different caliber sampling containers.
[0075] Adapting to small caliber sampling containers: If the sampling container 3 has a small caliber, the rotating sleeve 207 needs to be continuously rotated, so that the rotating extrusion blocks 208 further extrude the protrusions 2052, and the pressure receiving strip 205 deforms inwardly with an increased amplitude, until it completely fills the gap between the inner pressure cavity 204 and the outer periphery of the sampling container 3, tightly adheres to the sampling container 3, and forms a stable clamping through radial extrusion force.
[0076] Adapting to large caliber sampling containers: If the sampling container 3 has a large caliber, only a slight rotation of the rotating sleeve 207 is needed, and the rotating extrusion blocks 208 apply a small extrusion force to the protrusions 2052, so that the pressure receiving strip 205 can adhere to the outer periphery of the sampling container 3 with a small deformation, also achieving fixation through extrusion force, avoiding the shaking of the sampling container 3.
[0077] Stability of fixation: The pressure receiving strip 205 is firmly fixed to the inner sampling sleeve 202 through the bonding area 2051, and does not separate from the inner sampling sleeve 202 during deformation. The multiple pressure receiving strips 205 are evenly distributed along the circumference, exerting balanced extrusion force on the sampling container 3, avoiding excessive local stress that may damage the sampling container 3, and ensuring the precise alignment of the sampling container 3 and the slot of the sampling sleeve 2, without affecting the falling and collection of the sampling cotton swab 5.
[0078] When the sampling container 3 needs to be taken out, the rotating sleeve 207 is rotated in the opposite direction, the rotating extrusion blocks 208 gradually move away from the protrusions 2052, and the pressure receiving strip 205 returns to its initial state under the action of its own elasticity after losing the extrusion force, and separates from the outer periphery of the sampling container 3. At this time, the sampling container 3 can be easily taken out, and the operation is convenient and does not damage the sampling container.
[0079] In summary, the structure adjusts the deformation degree of the pressure receiving strip 205 by rotating the rotating sleeve 207, realizes the adaptive fixing of the sampling container 3 with different diameters, solves the problems of poor stability and weak adaptability of the common plug-in mode, and ensures the accurate position and firm fixing of the sampling container after installation, thereby providing stable container support for sample collection.
[0080] In order to reduce the interference of vaginal secretions during insertion, a resettable sealing structure is designed at the end of the elongated handle sleeve 4.
[0081] The end of the elongated handle sleeve 4 is provided with a plug ring 14, and one side of the plug ring 14 is fixed with a port cover 13, which is a semicircular structure formed by multiple petals.
[0082] Working principle: the port cover 13 (multiple petal semicircular structure) at the end of the elongated handle sleeve 4 is reset by elasticity and cooperates with moisture absorption to reduce the interference of vaginal secretions during insertion: when the sampling cotton swab 5 is extended, the pushing force causes the reset outer layer 131 and the reset inner layer 133 (elastic material) to deform and open, without hindering sampling; after sampling, the two layers of elastic material automatically reset and close the port; during the process, the vaginal secretions are absorbed by the moisture-absorbing inner layer 132 through the moisture-absorbing port of the reset outer layer 131, so as to avoid the interference of the secretions on the sample.
[0083] The above device, in actual use, is a device body cooperating with multiple sampling cotton swabs 5, the device body can be used for cyclic disinfection, the sampling container 3 is selected according to actual conditions, and the sampling cotton swab 5 can be mass-produced as a disposable product.
[0084] The embodiments of the present application disclose the preferred embodiments, but are not limited thereto, and those skilled in the art can easily understand the spirit of the present application according to the above embodiments, and make different inferences and changes, as long as they do not deviate from the spirit of the present application, and are within the protection scope of the present application.
Claims
1. A reproductive secretion sampling device, characterized in that, It includes an operating handle sleeve (1), a sampling sleeve (2) is installed at one end of the operating handle sleeve (1), a sampling container (3) is fixed inside the sampling sleeve (2), and a slot communicating with the port of the sampling container (3) is opened on the top of the sampling sleeve (2). The other end of the operating handle sleeve (1) is equipped with a slender handle sleeve (4). The end of the slender handle sleeve (4) away from the sampling sleeve (2) is provided with a sampling cotton swab (5). The sampling cotton swab (5) consists of a cotton head (501) and a short rod (502). The cotton head (501) is made of absorbent cotton material, and one end of the short rod (502) is integrally formed with a protrusion (503). The sampling swab (5) is provided with a release structure (6) on its outer periphery. The release structure (6) includes multiple bending and shifting plates (601). The multiple bending and shifting plates (601) are arranged in a ring array. The bending and shifting plates (601) are made of elastic metal. A fixing buckle (602) is connected to the bottom end of the bending and shifting plate (601). A traction rod (603) is rotatably connected to one side of the fixing buckle (602). A synchronization ring (604) is hinged to the other end of the multiple traction rods (603). A displacement ring (605) is provided below the synchronization ring (604). The displacement ring (605) is integrally formed with a sliding rod (606) that slides and limits the operation handle sleeve (1). Several extension rods (607) are fixed between the displacement ring (605) and the synchronization ring (604). The fixing buckle (602) includes an upper straight section (6021), and a lower straight section (6022) is provided below the upper straight section (6021). A concave arc section (6023) is connected between the lower straight section (6022) and the upper straight section (6021). One side of the concave arc section (6023) is a recessed space for accommodating the protrusion (503). The sampling sleeve (2) has multiple sealing caps (10) rotatably connected to the inner circumference of the slot. The multiple sealing caps (10) form a complete polygonal seal. A torsion spring (11) is connected between the sealing cap (10) and the inner wall of the slot. Multiple lower top columns (12) are fixed at the bottom of the displacement ring (605). The lower top columns (12) apply a downward pushing force to the sealing cap (10) during the downward movement.
2. The reproductive secretion sampling device according to claim 1, characterized in that, The bending plate (601) is an arc-shaped segment that bends toward the sampling swab (5), and the bending plate (601) has a multi-wave structure along the arc-shaped segment trajectory.
3. The reproductive secretion sampling device according to claim 2, characterized in that, The fixing buckle (602) is provided with a fixing member (7), which is composed of a sharp arc (701) and a barb protrusion (702). The sharp arc (701) is an acute-angled arc inclined towards the sampling sleeve (2). The sharp arc (701) is made of elastic material. The barb protrusion (702) is located at the arc inflection point of the sharp arc (701). The barb protrusion (702) is the barb force point.
4. A reproductive secretion sampling device according to claim 3, characterized in that, The inner circumference of the operating handle sleeve (1) is provided with a through tube (8), the top of the through tube (8) is integrally formed with an extension edge (81) fixed to the inner top wall of the operating handle sleeve (1), the upper half of the through tube (8) is provided with multiple transverse grooves (82) for the extension rod (607) to slide, and the inner circumference of the through tube (8) extends to connect the opening of the slender handle sleeve (4) and the sampling container (3) to form a guide channel.
5. A reproductive secretion sampling device according to claim 4, characterized in that, An inner wall space is formed between the through pipe (8) and the operating handle sleeve (1), and the inner wall space is provided with a plurality of reset springs (9).
6. A reproductive secretion sampling device according to claim 1 or 5, characterized in that, The sampling sleeve (2) includes an outer sample sleeve (201), an inner sample sleeve (202) is fixed on the inner circumference of the outer sample sleeve (201), the outer sample sleeve (201) has multiple through cavities (203), the inner sample sleeve (202) has multiple internal pressure cavities (204), and a flexible and elastic pressure strip (205) is provided between the internal pressure cavities (204) and the through cavities (203) in the same row. A fixed outer ring (206) is fixed on the outer circumference of the top of the outer sample sleeve (201), and a tightening sleeve (207) is limited and slidable on the outer circumference of the fixed outer ring (206).
7. A reproductive secretion sampling device according to claim 6, characterized in that, The edge of one side of the pressure strip (205) is attached to the inner sample sleeve (202) and forms an adhesive area (2051). The adhesive area (2051) is bonded and fixed to the inner sample sleeve (202). The other side of the pressure strip (205) is integrally formed with multiple protrusions (2052) that pass through the cavity (203). Multiple extrusion blocks (208) are provided on the outer periphery of the tightening sleeve (207). When the tightening sleeve (207) rotates, the extrusion blocks (208) can squeeze the protrusions (2052).
8. A reproductive secretion sampling device according to claim 7, characterized in that, The end of the slender handle (4) is fitted with a plug ring (14), and a port cover (13) is fixed on one side of the plug ring (14). The port cover (13) is a semi-circular structure formed by multiple petals. The petals are a layered structure composed of a reset outer layer (131), a moisture-absorbing inner layer (132), and a reset inner layer (133) from the inside to the outside. The reset outer layer (131) and the reset inner layer (133) are made of elastic resettable material. The moisture-absorbing inner layer (132) is made of moisture-absorbing material. The reset outer layer (131) has a moisture-absorbing port that communicates with the moisture-absorbing inner layer (132).
Citation Information
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