Ophthalmic swab sampler

Abstract

The present invention relates to the technical field of swab sampling instruments, and specifically to an ophthalmic swab sampler, comprising a detachable medicine sachet box and swab swab, an optimized sealing end group and a one-button operation function. The design of the sampler can realize the independent replacement of the medicine box and the swab swab, thereby enhancing the flexibility and adaptability of the equipment. The sealing end group can be opened quickly and ensure that the medicine does not leak during the sampling process, thereby improving the safety of the operation and the accuracy of the sampling. Through the one-button push and one-button recovery design, the operation of the sampler becomes simple, reducing the error of manual operation and improving the sampling efficiency. The detachable structure of the sampler makes the equipment easier to clean and maintain, effectively avoiding the problem of cross-contamination during long-term use. The sampler is particularly suitable for ophthalmic sampling, laboratory research and other scenarios requiring precise sampling, and has high practical value and market prospects.

Description

Technical Field

[0001] The invention relates to the technical field of swab sampling instruments, in particular to an ophthalmic swab sampler. Background Art

[0002] With the development of medical technology, various types of sampling work in the field of ophthalmology have gradually introduced more efficient, accurate and convenient equipment. As an important tool for ophthalmic sampling, ophthalmic swab samplers have been widely used in many fields such as clinical diagnosis and experimental research. Most existing ophthalmic swab samplers are disposable in design, equipped with a fixed reagent box or swab, and sampling is performed manually. However, current equipment still has several shortcomings in terms of ease of operation, reagent storage and release, and sampling efficiency.

[0003] The operating steps of the existing ophthalmic swab sampler are as follows:

[0004] Removing the ophthalmic swab: First, remove the ophthalmic swab from the sterile packaging. To ensure the sterility of the sample, the entire procedure must be performed in a sterile environment, typically in a clean area of a laboratory or hospital. Performing ophthalmic sampling: After removing the ophthalmic swab, use the swab to collect the ophthalmic sample. The sampling site is usually the surface of the eye or near the eyelid. The sampling process requires ensuring that the swab head can evenly contact the ocular secretions to collect sufficient sample.

[0005] Place in a test tube: After sampling is completed, the swab is placed in a pre-prepared test tube. The test tube usually contains a certain amount of bail, which is used to maintain the stability of the sample and prevent it from deteriorating during transportation and storage.

[0006] Open the test tube cap and seal it: After the ophthalmic swab is placed in the test tube, the cap must be opened and the swab head placed into the test tube. The test tube is then sealed to prevent the sample from being contaminated by the outside environment.

[0007] Although the existing ophthalmic swab sampling procedure has been able to achieve sample collection and storage, there are still some shortcomings in the actual operation process:

[0008] Complicated operation: The existing sampling process requires multiple operations, including removing the swab from the sterile packaging, sampling, placing it in a test tube, sealing, and soaking. These processes are cumbersome and difficult to operate, which can easily lead to operational errors, especially in scenarios that require rapid response or high-frequency operations.

[0009] Inconvenient reagent replacement: The existing bail agent is usually fixed to the test tube and cannot be flexibly replaced. Different sampling tasks may require different bail agents, which makes the existing equipment inflexible. Once the reagent is used, it cannot be replaced, which may affect the processing effect of the sample.

[0010] Sealing issues: Although the purpose of test tube sealing is to prevent contamination, the sealing effect of existing equipment often relies on manual operation, which may result in loose sealing, causing the sample to come into contact with external air or contaminants, thereby affecting the accuracy of the results.

[0011] In view of this, research and improvement are conducted on the existing problems, and an ophthalmic swab sampler is provided to solve the current problems. Summary of the Invention

[0012] The present invention relates to an ophthalmic swab sampler, in particular to a device for performing ophthalmic swab sampling. The sampling process is made efficient, safe and stable through precise structural design.

[0013] To this end, the technical solution adopted by the present invention is: an ophthalmic swab sampler, comprising: a sleeve body, a pusher, a sealing end group, a medicine bag box and a swab swab, one end of the sleeve body is provided with a pressure wing, and the sealing end group is fixed to the other end of the sleeve body; the pusher comprises a push rod, a guide block and a shaft tube connected in sequence, the surface of the guide block is provided with a sliding pin for slidingly guiding the guide block inside the sleeve body, one end of the guide block is provided with a spring, the surface of the shaft tube is provided with a sleeve hole for installing the swab swab, and the surface of the shaft tube is fixedly sleeved with a bursting disk; the sealing end group comprises a fixed sleeve seat, a rotating sleeve seat and a plurality of valve plates, the fixed sleeve seat is fixed to the end of the sleeve body, the rotating sleeve seat is rotatably installed on the inner side of the fixed sleeve seat, and There is a distance between the outer periphery of the rotating sleeve seat and the inner side of the fixed sleeve seat, a plurality of rotary grooves are opened on the surface of the fixed sleeve seat, a rotating pin is provided on the surface of the rotating sleeve seat, and a coupling groove is provided at one end of the rotating sleeve seat, a shaft hole is provided on the surface of the valve plate which is sleeved on the surface of the rotating pin, and a sliding protrusion is fixedly installed on the surface of the valve plate which is slidably sleeved on the inner side of the rotary groove, each of the valve plates is fan-shaped, and a plurality of valve plates are combined to form a hemispherical cover; a bail agent storage cavity is provided on the inner side of the medicine sac box and a sealing film is provided at one end, a hanging ear for engaging with the coupling groove is provided on the surface of the medicine sac box which is sleeved on the surface of the shaft tube and a guide groove is opened on the inner side of the medicine sac box, a sliding key is provided on the surface of the shaft tube, and the sliding key slides in contact with the inner side of the guide groove.

[0014] The design of the present invention ensures the stability and sealing of the internal structure of the sampler, prevents leakage of reagents and external contamination, and improves the safety and reliability of sampling work.

[0015] In a preferred example, the present invention can be further configured as follows: the guide groove includes an arc segment and a straight end, and the arc segment has the same pitch and direction of rotation as the rotary groove, the length of the arc segment is greater than the length of the rotary groove, and the straight end of the guide groove is arranged parallel to the axis of the shaft tube.

[0016] This design allows for smoother and more precisely controlled release of the drug during use, thereby enhancing the stability and efficiency of drug dissolution.

[0017] In a preferred embodiment, the present invention can be further configured such that the ends of the spring abut against the end of the guide block and one side of the lug, respectively, with the guide block in a compressed state. The compression of the spring ensures stable thrust transmission, prevents component loosening, and improves the stability and service life of the sampler.

[0018] In a preferred embodiment, the present invention can be further configured such that the surfaces of the sleeve body and the guide block are each provided with a pin hole and a locking pin rod for locking the guide block and sleeve body relative to each other. This locking design effectively prevents structural displacement during sampling, increasing the safety and stability of the sampler.

[0019] In a preferred embodiment of the present invention, the sliding key is a spring pin structure that slides against the inner side of the guide groove. Specifically, the use of a retractable sliding key allows for detachable installation of the shaft tube and the sachet box. The retractable spring pin improves detachability, simplifies maintenance and cleaning of the device, and extends its service life.

[0020] In a preferred example, the present invention can be further configured as follows: the bursting disc is disc-shaped and has spikes on its surface, and each spike has a through hole on its surface for puncturing the sealing film on the surface of the medicine sachet box and draining the liquid.

[0021] The thorn tooth design improves the efficiency of drug release, ensures that the sampler can efficiently extract the drug during operation, and enhances the dissolution effect.

[0022] In a preferred example, the present invention can be further configured as follows: the rotary groove is in the shape of a spiral strip, and a plurality of rotary grooves are evenly distributed on the outer circumference of the fixed sleeve seat in the circumferential direction, and the rotating pins and rotary grooves correspond to the number of valve plates one by one; the inner and outer sides of the valve plates are respectively in sliding contact with the outer surface of the rotating sleeve seat and the inner wall of the fixed sleeve seat, and a sealing strip is provided on the edge of each valve plate for sealing when adjacent valve plates are in abutment.

[0023] Technical effect: The spiral strip design provides efficient thrust conversion, and the sealing strip ensures that the agent does not leak during the sampling process, improving the overall sealing and reliability of the sampler.

[0024] The beneficial effects achieved by the present invention are:

[0025] 1. The present invention features a removable sachet case and swab structure, enabling independent and convenient replacement of the sachet case. This structural design allows for more flexible sealed storage and release of the drug, facilitating quick replacement of different sachet cases based on different sampling requirements, avoiding cross-contamination or unsuitable drug products. The replaceable sachet case not only enhances the adaptability of the device but also facilitates maintenance and cleaning, significantly reducing hygiene risks during use.

[0026] 2. The present invention utilizes a precisely designed sealing end assembly to achieve rapid opening and sealing. This highly effective sealing design not only prevents leakage of the drug during sampling but also ensures a secure connection between the sachet box and other components. With simple operation, users can quickly activate the device, ensuring efficient and stable sampling. The sealing design also effectively extends the device's service life, preventing contamination and ensuring the long-term effectiveness of the drug.

[0027] 3. In the present invention, the one-button push and recovery function makes the sampling work extremely convenient. The user only needs to press lightly and start with one button to quickly open the sealed end group port and push the swab to perform the sampling operation; similarly, the operating system also provides a one-button recovery function, so that the swab can be quickly recovered, releasing the bail agent inside the medicine bag box to dissolve the sample. This design significantly improves the simplicity and efficiency of operation, reduces the number of operating steps, and reduces the risk of operational errors. For medical staff or researchers, the operation is simple and quick, which reduces unnecessary complex operations and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0029] Figure 2 A schematic cross-sectional view of an embodiment of the present invention;

[0030] Figure 3 This is a schematic structural diagram of a swab, a sealing end assembly, and a medicine sachet box according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of a sealing end group and a medicine capsule box according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic structural diagram of a shaft tube and a medicine capsule box according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of a bursting disc according to an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the exploded structure of the sealing end group according to one embodiment of the present invention.

[0035] Reference numerals:

[0036] 100, sleeve body; 110, pressure wing; 120, locking pin rod;

[0037] 200, propulsion element; 210, push rod; 220, guide block; 230, shaft tube; 221, slide pin; 222, spring; 231, bursting disc; 232, slide key;

[0038] 300, sealing end assembly; 310, fixed sleeve seat; 320, rotating sleeve seat; 330, valve plate; 311, rotary slide groove; 321, engaging groove; 322, rotating pin; 331, sliding protrusion; 332, shaft hole;

[0039] 400, medicine sachet box; 410, hanging ear; 420, guide groove; 401, sealing film;

[0040] 500. Swab. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0042] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0043] The following is combined with Figures 1 to 7 An ophthalmic swab sampler provided in some embodiments of the present invention is described.

[0044] Combined with attachment Figures 1 to 7As shown, the present invention provides an ophthalmic swab sampler, comprising: a sleeve body 100, a pusher 200, a sealing end group 300, a medicine bag box 400 and a swab 500, wherein one end of the sleeve body 100 is provided with a pressure wing 110, and the sealing end group 300 is fixed to the other end of the sleeve body 100; the pusher 200 comprises a push rod 210, a guide block 220 and a shaft tube 230 connected in sequence, and the surface of the guide block 220 is provided with a sliding pin 221 for the guide block 220 to be pressed in the sleeve body 100. The sliding guide inside the sleeve body 100, one end of the guide block 220 is provided with a spring 222, the surface of the shaft tube 230 is provided with a sleeve hole for installing the swab 500, and the surface of the shaft tube 230 is fixedly sleeved with a bursting disk 231; the sealing end group 300 includes a fixed sleeve seat 310, a rotating sleeve seat 320 and a plurality of valve plates 330, the fixed sleeve seat 310 is fixed to the end of the sleeve body 100, the rotating sleeve seat 320 is rotatably installed on the inner side of the fixed sleeve seat 310, and the rotating sleeve seat 320 is rotatably installed on the inner side of the fixed sleeve seat 310, and the rotating sleeve seat 320 is rotatably installed on the inner side of the fixed sleeve seat 310. There is a gap between the outer periphery of the sleeve 320 and the inner side of the fixed sleeve 310. The surface of the fixed sleeve 310 is provided with a plurality of rotary grooves 311. The surface of the rotating sleeve 320 is provided with a rotating pin 322, and one end of the rotating sleeve 320 is provided with a coupling groove 321. The surface of the valve plate 330 is provided with an axial hole 332 that is sleeved on the surface of the rotating pin 322. The surface of the valve plate 330 is fixedly installed with a sliding protrusion 331 that is slidably sleeved on the inner side of the rotary groove 311. Each of the valve plates 330 is fixed with a sliding protrusion 331 that is slidably sleeved on the inner side of the rotary groove 311. 0 is fan-shaped, and several valve plates 330 are combined to form a hemispherical cover; the inner side of the medicine sachet box 400 is provided with a bail agent storage cavity and a sealing film 401 is provided at one end, the surface of the medicine sachet box 400 is provided with a hanging ear 410 for engaging with the engagement groove 321, the medicine sachet box 400 is sleeved on the surface of the shaft tube 230 and a guide groove 420 is opened on the inner side of the medicine sachet box 400, the surface of the shaft tube 230 is provided with a sliding key 232, and the sliding key 232 is in sliding contact with the inner side of the guide groove 420.

[0045] In this embodiment, the guide groove 420 includes an arc segment and a straight end. The arc segment has the same pitch and direction of rotation as the rotary groove 311, the arc segment is longer than the length of the rotary groove 311, and the straight end of the guide groove 420 is arranged parallel to the axis of the shaft tube 230. Under the advancement of the shaft tube 230, the first segment slides on the inside of the arc segment via the sliding key 232 to achieve deflection drive of the medicine sachet box 400 and the fixed sleeve 310, and the valve plate 330 deflects to open the sealing end group 300. The second segment is pushed forward by the linear advancement of the shaft tube 230 to eject the swab 500. The arc segment is longer than the length of the rotary groove 311, and the valve plate 330 is effectively maintained in a closed state under the operation of the spring 222.

[0046] In this embodiment, the two ends of the spring 222 are respectively in contact with the guide block 220 and the end and one side of the lug 410, and the guide block 220 is in a compressed state to ensure smooth thrust transmission. After the thrust is applied, the spring 222 is in a compressed state to ensure that the component remains in a stable state, thereby improving the service life and stability of the entire device.

[0047] In this embodiment, the surfaces of the cannula body 100 and the guide block 220 are each provided with a pin hole and a locking pin rod 120 for locking the guide block 220 and the cannula body 100 relative to each other. The pin hole design precisely locks the cannula body 100 and the guide block 220, preventing misalignment during use. The pin hole and the locking pin rod 120 cooperate to easily lock and unlock, ensuring smooth use of the sampler.

[0048] The locking design can prevent structural displacement during operation, avoid the bursting disk 231 from compressing and damaging the sealing film 401 on the surface of the medicine capsule box 400, and improve safety and stability.

[0049] In this embodiment, the sliding key 232 is a spring pin structure that slides against the inner side of the guide slot 420. Specifically, the retractable sliding key 232 enables the detachable installation of the shaft tube 230 and the medicine sachet box 400. The retracting action of the spring pin ensures that the shaft tube 230 and the medicine sachet box 400 can be quickly separated and installed when needed.

[0050] In this embodiment, the bursting disk 231 is disk-shaped and has spikes on its surface. Each spike has a through hole on its surface for puncturing the sealing film 401 on the surface of the medicine sachet box 400 and draining the liquid.

[0051] The thorn teeth are provided with through holes, through which the surface of the medicine sachet box 400 can be pierced and the medicine can be efficiently released to the surface of the swab 500 for dissolution of the sample.

[0052] In this embodiment, the rotary groove 311 is in the shape of a spiral strip, and several rotary grooves 311 are evenly distributed in the circumferential direction on the outer periphery of the fixed sleeve 310. The number of the rotating pins 322 and the rotary grooves 311 is equal to the number of the valve disc 330; the inner and outer sides of the valve disc 330 are respectively in sliding contact with the outer surface of the rotating sleeve 320 and the inner wall of the fixed sleeve 310, and a sealing strip is provided on the edge of each valve disc 330 for sealing when adjacent valve discs 330 are in abutment state.

[0053] The spiral strip design allows the component to convert part of the thrust into a deflection effect during movement, thereby achieving rapid opening and closing of the valve plate 330. The sealing strip design improves the sealing effect, reduces the risk of drug leakage, and ensures the efficiency and safety of the sampling process during use.

[0054] The working principle and use process of the present invention:

[0055] 1. Assembly of the disposable medicine sachet box 400 and the swab 500:

[0056] Remove the pushing member 200 from the surface of the sleeve body 100 as a whole, push the medicine capsule box 400 from one end of the sleeve body 100, and use the ear 410 on the surface of the medicine capsule box 400 to engage with the engaging groove 321 at the end of the rotating sleeve seat 320 to achieve the installation of the medicine capsule box 400, reinstall the pushing member 200, so that one end of the shaft tube 230 passes through the inner hole of the medicine capsule box 400 and is connected to the end of the guide block 220, and the shaft tube 230 faces the sealing film 401 of the medicine capsule box 400. At the same time, the sliding key 232 on the surface of the shaft tube 230 is located inside the guide groove 420, and a swab 500 is loaded at one end of the shaft tube 230; after pushing the guide block 220 to a suitable position, the locking pin rod 120 is inserted from the surface of the sleeve body 100 to lock the position of the guide block 220 and the shaft tube 230. In this locked state, the bursting disk 231 does not contact the surface of the sealing film 401, the spring 222 is in a compressed state, and at the same time, the sealing end group 300 is in a closed state;

[0057] The sealed end group 300 can prevent the end of the swab 500 from being contaminated, and the swab bail agent is sealed and stored inside the medicine bag box 400 to maintain long-term effectiveness.

[0058] 2. Carry out sampling work:

[0059] When holding the surface of the sleeve body 100, the thumb presses the end of the push rod 210 to pull out the locking pin rod 120 on the surface of the sleeve body 100, and at the same time, the thumb pushes the pusher 200 to slide inside the sleeve body 100 to further compress the spring 222. During the sliding process of the sliding key 232 on the surface of the shaft tube 230 in the guide groove 420, part of the thrust of the shaft tube 230 is converted into the deflection kinetic energy of the medicine capsule box 400 and the rotating sleeve seat 320, and then the rotating sleeve seat 320 can be deflected relative to the fixed sleeve seat 310, in conjunction with the guidance of the rotary groove 311 and the sliding protrusion 331, to achieve the deflection movement of the valve plate 330. The valve plate 330 deflects with the rotating pin 322 as the axis to open the fixed sleeve seat 310 and the rotating sleeve seat 320 ports. Further, the shaft tube 230 pushes the movement to realize the ejection of the swab 500, and the swab 500 is used for sampling.

[0060] 3. Sampling work is completed:

[0061] The pusher 200 is released, and the restoring effect of the spring 222 is used to push the guide block 220 away from the sealing end group 300. Then, when the sliding key 232 retreats, the swab 500 retreats into the inner side of the rotating sleeve 320, and the rotating sleeve 320 rotates in the opposite direction relative to the fixed sleeve 310, guiding each valve plate 330 to deflect and close. Under the retreat impact of the bursting disk 231 on the surface of the shaft tube 230, the bursting disk 231 pierces the ear 410 on the surface of the medicine capsule box 400 and releases the medicine capsule box 400. The bail agent sealed inside the 00 soaks and dissolves the swab 500, and the elastic action of the guide block 220 maintains the tension between the guide block 220 and the ear 410, thereby preventing free deflection between the fixed sleeve 310 and the rotating sleeve 320, thereby maintaining the abutment effect between the valve plates 330, achieving an efficient sealing effect. The rotating sleeve 320, the valve plate 330 and the inner cavity of the medicine sachet box 400 form a whole sealed cavity for sealing and storing the sample on the surface of the swab 500;

[0062] 4. Release the sample and remove the swab 500:

[0063] Hold the surface of the sleeve body 100 again and press the end of the push rod 210 to push the shaft tube 230 and the swab 500, and simultaneously open the sealing end group 300, pour out the liquid dissolving the sample inside, and disassemble and clean the sleeve body 100 and the pusher 200. Then repeat the above method to install a new medicine bag box 400 and swab 500.

[0064] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An ophthalmic swab sampler, characterized in that: include: A sleeve body (100), a propulsion member (200), a sealing end group (300), a medicine sachet box (400) and a swab (500), wherein one end of the sleeve body (100) is provided with a pressure wing (110), and the sealing end group (300) is fixed to the other end of the sleeve body (100); The propulsion member (200) comprises a push rod (210), a guide block (220), and a shaft tube (230) connected in sequence; The sealing end group (300) includes a fixed sleeve seat (310), a rotating sleeve seat (320) and a plurality of valve plates (330), wherein the fixed sleeve seat (310) is fixed to the end of the sleeve body (100), and the rotating sleeve seat (320) is rotatably mounted on the inner side of the fixed sleeve seat (310), and a distance is provided between the outer periphery of the rotating sleeve seat (320) and the inner side of the fixed sleeve seat (310), and a plurality of rotary sliding grooves (311) are provided on the surface of the fixed sleeve seat (310). A rotating pin (322) is provided on the surface of the (320), and a coupling groove (321) is provided at one end of the rotating sleeve seat (320). A shaft hole (332) sleeved on the surface of the rotating pin (322) is provided on the surface of the valve plate (330). A sliding protrusion (331) that is slidably sleeved on the inner side of the rotating groove (311) is fixedly mounted on the surface of the valve plate (330). Each valve plate (330) is fan-shaped, and a plurality of valve plates (330) are combined to form a hemispherical cover. The medicine sachet box (400) is provided with a bail agent storage cavity on its inner side and a sealing film (401) at one end. The surface of the medicine sachet box (400) is provided with a hanging ear (410) for engaging with the engaging groove (321); The guide block (220) is provided with a sliding pin (221) on the surface thereof for guiding the guide block (220) to slide inside the sleeve body (100); a spring (222) is provided at one end of the guide block (220); a sleeve hole for mounting a swab (500) is provided on the surface of the shaft tube (230); and a bursting disc (231) is fixedly sleeved on the surface of the shaft tube (230); The two ends of the spring (222) are respectively in contact with the end of the guide block (220) and one side of the hanging ear (410), and the guide block (220) is in a compressed state; The medicine sachet box (400) is sleeved on the surface of the shaft tube (230), and a guide groove (420) is provided on the inner side of the medicine sachet box (400). A sliding key (232) is provided on the surface of the shaft tube (230), and the sliding key (232) is in sliding contact with the inner side of the guide groove (420). The guide groove (420) includes an arc segment and a straight end, and the arc segment has the same pitch and direction of rotation as the rotary slide groove (311), the length of the arc segment is greater than the length of the rotary slide groove (311), and the straight end of the guide groove (420) is arranged parallel to the axis of the shaft tube (230); The bursting disc (231) is disc-shaped and has thorns on its surface. Each thorn is provided with a through hole on its surface for puncturing the sealing film (401) on the surface of the medicine sachet box (400) and draining the liquid. The end of the push rod (210) is pressed to push the propulsion member (200) to slide inside the sleeve body (100) to further compress the spring (222). During the sliding process of the sliding key (232) on the surface of the shaft tube (230) inside the guide groove (420), part of the thrust of the shaft tube (230) is converted into the deflection kinetic energy of the medicine bag box (400) and the rotating sleeve seat (320). With the guidance of the rotary groove (311) and the sliding protrusion (331), the deflection movement of the valve plate (330) is realized. The valve plate (330) deflects with the rotating pin (322) as the axis to open the fixed sleeve seat (310) and the rotating sleeve seat (320). The shaft tube (230) pushes the movement to realize The swab (500) is ejected, releasing the propulsion member (200), and utilizing the restoring action of the spring (222) to push the guide block (220) away from the sealing end group (300). Then, when the sliding key (232) retracts, the swab (500) retracts into the inner side of the rotating sleeve seat (320), and the rotating sleeve seat (320) rotates in the opposite direction relative to the fixed sleeve seat (310), guiding each valve plate (330) to deflect and close. Under the retraction impact of the bursting disk (231) on the surface of the shaft tube (230), the bursting disk (231) pierces the surface ear (410) of the medicine capsule box (400) and releases the bail agent sealed inside the medicine capsule box (400).

2. An ophthalmic swab sampler according to claim 1, characterized in that: The surfaces of the sleeve body (100) and the guide block (220) are both provided with pin holes and a locking pin rod (120) for locking the relative positions of the guide block (220) and the sleeve body (100).

3. An ophthalmic swab sampler according to claim 1, characterized in that: The sliding key (232) is a spring pin structure and is in sliding contact with the inner side of the guide groove (420).

4. An ophthalmic swab sampler according to claim 1, characterized in that: The rotary slide groove (311) is in the shape of a spiral strip, and a plurality of the rotary slide grooves (311) are evenly distributed on the outer periphery of the fixed sleeve (310) in a circumferential direction. The number of the rotating pins (322), the rotary slide grooves (311) and the valve plates (330) corresponds one to one.

5. An ophthalmic swab sampler according to claim 1, characterized in that: The inner side and outer side of the valve disc (330) are in sliding contact with the outer surface of the rotating sleeve seat (320) and the inner wall of the fixed sleeve seat (310), respectively. A sealing strip is provided on the edge of each valve disc (330) for sealing when adjacent valve discs (330) are in contact.

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