Ophthalmic swab sampler

Abstract

The invention relates to the technical field of swab sampling instruments, in particular to an ophthalmology swab sampler which comprises a detachable medicine bag box, a swab label, an optimized sealing end set and a one-key operation function. Due to the design of the sampler, the medicament box and the swab label can be independently replaced, and the flexibility and the adaptability of equipment are enhanced. And the sealing end group can be quickly opened and ensures that the medicament is not leaked in the sampling process, so that the operation safety and the sampling accuracy are improved. Through the design of one-key pushing and one-key recycling, the operation of the sampler becomes simple and convenient, the error of manual operation is reduced, and meanwhile, the sampling efficiency is improved. Due to the detachable structure of the sampler, the equipment is easier to clean and maintain, and the problem of cross contamination in the long-term use process is effectively avoided. The sampler is particularly suitable for ophthalmology sampling, laboratory research and other scenes needing accurate sampling, and has high practical value and market prospect.

Description

Technical Field

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

[0002] With the development of medical technology, more efficient, precise and convenient devices have been gradually introduced for various sampling tasks in the field of ophthalmology. As an important tool for ophthalmic sampling, the ophthalmic swab sampler has been widely used in multiple fields such as clinical diagnosis and experimental research. Most of the existing ophthalmic swab samplers adopt a disposable design, equipped with a fixed reagent cartridge or swab stick, and the sampling is carried out manually. However, the current devices still have several deficiencies in terms of operation convenience, reagent storage and release, and sampling efficiency.

[0003] The operation steps of the existing ophthalmic swab sampler are as follows: Take out the ophthalmic swab: First, take out the ophthalmic swab from the sterile packaging bag. To ensure the sterility of the sample, the whole operation needs to be carried out in a sterile environment, usually in a laboratory or a clean area of a hospital. Conduct ophthalmic sampling: After taking out the ophthalmic swab, use the swab to collect the ophthalmic sample. The sampling site is usually the eye surface or near the eyelid. During the sampling process, it is necessary to ensure that the head of the swab can evenly contact the eye secretions to collect sufficient samples.

[0004] Put it into a test tube: After sampling, the swab is put into a pre-prepared test tube. The test tube usually contains a certain amount of preservative, and the role of the preservative is to maintain the stability of the sample and prevent the sample from deteriorating during transportation and storage.

[0005] Open the test tube cap and seal it: After the sampled ophthalmic swab is put into the test tube, it is necessary to open the test tube cap, put the head part of the swab into the test tube. Subsequently, the test tube is sealed to ensure that the sample is not contaminated by the external environment.

[0006] Although the existing ophthalmic swab sampling steps can already achieve the collection and storage of samples, there are still some deficiencies in the actual operation process: Complicated operation: The existing sampling steps require multiple operations, including taking out the swab from the sterile packaging, sampling, putting it into the test tube, sealing, soaking, etc. These processes are relatively complicated and the operation difficulty is relatively high, which is prone to operation errors, especially in scenarios that require quick response or high-frequency operations.

[0007] Inconvenient reagent replacement: The preservative in the existing technology is usually fixed to the test tube and cannot be flexibly replaced. For different sampling tasks, different preservatives may be required, which makes the existing equipment lack flexibility. Once the used reagent cannot be replaced, it may affect the processing effect of the sample.

[0008] Sealing problem: Although the purpose of sealing the test tube is to prevent contamination, the sealing effect of existing equipment often depends on manual operation, and there may be a situation of insufficient sealing, resulting in the contact between the sample and external air or pollutants, thus affecting the accuracy of the results.

[0009] In view of this, research and improvement are carried out on the existing problems, and an ophthalmic swab sampler is provided to solve the existing problems. Summary of the Invention

[0010] The present invention relates to an ophthalmic swab sampler, specifically a device for performing ophthalmic swab sampling. Through precise structural design, the sampling process is efficient, safe and stable.

[0011] For this reason, the technical solution adopted by the present invention is: an ophthalmic swab sampler, comprising: a sleeve body, a pushing member, a sealing end group, a medicine capsule box and a swab stick. One end of the sleeve body is provided with a pressing wing, and the sealing end group is fixed to the other end of the sleeve body; the pushing member includes 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 guiding the sliding of 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 socket hole for installing the swab stick, and a bursting disc is fixedly sleeved on the surface of the shaft tube; the sealing end group includes a fixed socket seat, a rotating socket seat and a plurality of valve pieces. The fixed socket seat is fixed to the end of the sleeve body. The rotating socket seat is rotatably installed inside the fixed socket seat, and there is a distance between the outer periphery of the rotating socket seat and the inner side of the fixed socket seat. A plurality of rotating chute grooves are opened on the surface of the fixed socket seat. The surface of the rotating socket seat is provided with a rotating pin, and one end of the rotating socket seat is provided with a joint groove. The surface of the valve piece is provided with a shaft hole sleeved on the surface of the rotating pin, and a sliding convex fixedly installed on the surface of the valve piece is slidably sleeved inside the rotating chute groove. Each of the valve pieces is in a fan shape, and a plurality of valve pieces are combined to form a hemispherical cover shape; the inside of the medicine capsule box is provided with a bailer agent storage cavity and one end is provided with a sealing film. The surface of the medicine capsule box is provided with a hanging ear for engaging with the joint groove. The medicine capsule box is sleeved on the surface of the shaft tube, and a guide groove is opened inside the medicine capsule box. The surface of the shaft tube is provided with a sliding key, and the sliding key is slidably abutted against the inside of the guide groove.

[0012] The design of the present invention ensures the stability and sealing of the internal structure of the sampler, prevents the leakage of the medicine and external contamination, and improves the safety and reliability of the sampling work.

[0013] The present invention can be further configured in a preferred example as: the guide groove includes an arc segment and a straight line end, and the arc segment has the same pitch and rotation direction as the rotating chute groove. The length of the arc segment is greater than the length of the rotating chute groove, and the straight line end of the guide groove is arranged parallel to the axis of the shaft tube.

[0014] This design makes the release of the medicine more stable and the control more precise during use, enhancing the stability and efficiency of the dissolution of the medicine.

[0015] In a preferred embodiment of the present invention, it can be further configured that both ends of the spring respectively abut against the end of the guide block and one side of the hanging ear, and the guide block is in a compressed state. The compression of the spring ensures the stable transmission of the thrust, avoids the loosening of components, and improves the stability and service life of the sampler.

[0016] In a preferred embodiment of the present invention, it can be further configured that pin holes are provided on the surfaces of both the sleeve body and the guide block, and locking pin rods are provided for locking the relative positions of the guide block and the sleeve body. The locking design effectively prevents the displacement of the structure during the sampling process, and increases the safety and stability of the sampler.

[0017] In a preferred embodiment of the present invention, it can be further configured that the sliding key is a spring pin structure and slidably abuts against the inner side of the guide groove. Specifically, a retractable sliding key is adopted to achieve the detachable installation of the shaft tube and the medicine capsule box. The retraction of the spring pin improves the detachability, simplifies the maintenance and cleaning process of the equipment, and extends the service life of the equipment.

[0018] In a preferred embodiment of the present invention, it can be further configured that the shaft tube is disc-shaped and has spines on its surface, and through holes are provided on the surfaces of the spines for piercing the sealing film on the surface of the medicine capsule box and guiding out the liquid.

[0019] The spine design improves the drug release efficiency, ensures that the sampler efficiently guides out the drug during operation, and enhances the dissolution effect.

[0020] In a preferred embodiment of the present invention, it can be further configured that the spiral chute is spiral strip-shaped, and a plurality of spiral chutes are evenly distributed on the outer periphery of the fixed sleeve seat in the circumferential direction, and the rotating pins and the spiral chutes correspond to the number of valve plates one by one; the inner side and the outer side of the valve plate respectively slide and abut against the outer surface of the rotating sleeve seat and the inner wall of the fixed sleeve seat, and sealing strips are provided at the edges of the valve plates for sealing in the abutting state of adjacent valve plates.

[0021] Technical effect: The spiral strip-shaped design provides efficient thrust conversion, and the sealing strip ensures that the drug does not leak during the sampling process, improving the overall sealing performance and reliability of the sampler.

[0022] The beneficial effects achieved by the present invention are: 1. In the present invention, it has a detachable medicine capsule box and swab stick structure, and the medicine capsule box can be replaced independently and conveniently. This structural design makes the sealed storage and release of the drug more flexible, facilitating the quick replacement of different drug boxes according to different sampling requirements, avoiding the problems of drug cross-contamination or inapplicability. The replaceable medicine capsule box not only improves the adaptability of the equipment, but also facilitates maintenance and cleaning, greatly reducing the hygienic risks during use.

[0023] 2. In the present invention, the function of rapid opening and sealing is achieved through a precisely designed sealing end group. The efficient sealing design of the sealing end group not only ensures that the medicament does not leak during the sampling process, but also guarantees a reliable connection between the medicine capsule box and other components. Through simple operations, users can quickly start the device, ensuring that the sampling work can be carried out efficiently and stably. The sealing design also effectively extends the service life of the device, prevents the medicament from being contaminated by the outside world, and ensures the long-term effectiveness of the medicament.

[0024] 3. In the present invention, through the one-key push and recycle function, the sampling work becomes extremely convenient. Users only need to gently press to start with one key to quickly open the port of the sealing end group and push the swab stick for sampling operations; similarly, the operating system also provides a one-key recycle function, enabling the swab stick to be quickly recycled, releasing the release agent inside the medicine capsule box for sample dissolution. This design significantly improves the simplicity and efficiency of the operation, reduces the operation steps, and lowers the risk of operation errors. For medical staff or researchers, the operation is simple and fast, reducing unnecessary complex operations and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic diagram of the cross-sectional structure of an embodiment of the present invention; Figure 3 is a schematic diagram of the structures of the swab stick, the sealing end group, and the medicine capsule box of an embodiment of the present invention; Figure 4 is a schematic diagram of the structures of the sealing end group and the medicine capsule box of an embodiment of the present invention; Figure 5 is a schematic diagram of the structures of the shaft tube and the medicine capsule box of an embodiment of the present invention; Figure 6 is a schematic diagram of the structure of the bursting disc of an embodiment of the present invention; Figure 7 is a schematic diagram of the exploded structure of the sealing end group of an embodiment of the present invention.

[0026] Reference Signs: 100, sleeve body; 110, pressing wing; 120, locking pin rod; 200, pushing member; 210, push rod; 220, guide block; 230, shaft tube; 221, sliding pin; 222, spring; 231, bursting disc; 232, sliding key; 300, sealing end group; 310, fixed sleeve seat; 320, rotating sleeve seat; 330, valve plate; 311, spiral chute; 321, engaging groove; 322, rotating pin; 331, sliding protrusion; 332, shaft hole; 400, Medicine Capsule Box; 410, Hanging Ear; 420, Guide Groove; 401, Sealing Film 500, Swab Stick Detailed Embodiment

[0027] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention.

[0029] The following combines the attached Figures 1 to 7 Describe an ophthalmic swab sampler provided by some embodiments of the present invention.

[0030] Combined with the attached Figures 1 to 7 As shown, an ophthalmic swab sampler provided by the present invention includes: a sleeve body 100, a pusher 200, a sealing end group 300, a medicine capsule box 400 and a swab stick 500. One end of the sleeve body 100 is provided with a pressing wing 110, and the sealing end group 300 is fixed to the other end of the sleeve body 100; the pusher 200 includes a push rod 210, a guide block 220 and a shaft tube 230 connected in sequence. The surface of the guide block 220 is provided with a sliding pin 221 for guiding the sliding of the guide block 220 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 socket hole for installing the swab stick 500, and a bursting disc 231 is fixedly sleeved on the surface of the shaft tube 230; the sealing end group 300 includes a fixed socket seat 310, a rotating socket seat 320 and a plurality of valve sheets 330. The fixed socket seat 310 is fixed to the end of the sleeve body 100. The rotating socket seat 320 is rotatably installed inside the fixed socket seat 310, and there is a gap between the outer circumference of the rotating socket seat 320 and the inner side of the fixed socket seat 310. A plurality of rotating chute grooves 311 are opened on the surface of the fixed socket seat 310. The surface of the rotating socket seat 320 is provided with a rotating pin 322, and one end of the rotating socket seat 320 is provided with a joint groove 321. The surface of the valve sheet 330 is provided with a shaft hole 332 sleeved on the surface of the rotating pin 322. The surface of the valve sheet 330 is fixedly installed with a sliding convex 331 slidably sleeved inside the rotating chute groove 311. Each of the valve sheets 330 is fan-shaped, and a plurality of valve sheets 330 are combined to form a hemispherical cover shape; the inner side of the medicine capsule box 400 is provided with a bursapholin storage cavity and one end is provided with a sealing film 401. The surface of the medicine capsule box 400 is provided with a hanging ear 410 for engaging with the joint groove 321. The medicine capsule box 400 is sleeved on the surface of the shaft tube 230, and a guide groove 420 is opened inside the medicine capsule 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.

[0031] In this embodiment, 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. Under the advancement of the shaft tube 230, the first section slides on the inner side of the arc segment through the sliding key 232 to achieve the deflection drive of the medicine bag box 400 and the fixed sleeve seat 310, the valve plate 330 deflects to open the sealing end group 300, and the second section realizes the ejection of the swab 500 through the linear advancement of the shaft tube 230; the length of the arc segment is greater than the length of the rotary slide groove 311, and the closing effect of the valve plate 330 is effectively maintained under the operation of the spring 222.

[0032] In this embodiment, the two ends of the spring 222 are respectively abutted against the guide block 220 and the end and one side of the ear 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.

[0033] In this embodiment, the surfaces of the sleeve body 100 and the guide block 220 are provided with pin holes and a locking pin rod 120, which are used to lock the relative position of the guide block 220 and the sleeve body 100. The pin hole design can accurately lock the position of the sleeve body 100 and the guide block 220 to avoid misalignment during use. The pin hole cooperates with the locking pin rod 120, which can be easily locked and unlocked to ensure smooth use of the sampler.

[0034] 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.

[0035] In this embodiment, the sliding key 232 is a spring pin structure and is slidably abutted against the inner side of the guide groove 420. Specifically, the retractable sliding key 232 is used to realize the detachable installation of the shaft tube 230 and the medicine capsule box 400. Through the retracting action of the spring pin, it is ensured that the shaft tube 230 and the medicine capsule box 400 can be quickly separated and installed when needed.

[0036] In this embodiment, the shaft tube 230 is disc-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 out the liquid.

[0037] 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.

[0038] In this embodiment, the spiral chute 311 is in a spiral strip shape, and a plurality of spiral chutes 311 are evenly distributed in the circumferential direction on the outer periphery of the fixed sleeve seat 310. The number of the rotating pins 322 and spiral chutes 311 is equal to that of the valve plates 330. The inner and outer sides of the valve plate 330 are respectively in sliding contact with the outer surface of the rotating sleeve seat 320 and the inner wall of the fixed sleeve seat 310. A sealing strip is provided at the edge of each valve plate 330 for sealing in the state where adjacent valve plates 330 are in contact with each other.

[0039] The spiral strip design enables the component to convert part of the thrust into a deflection effect during movement, realizing the 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.

[0040] The working principle and usage process of the present invention are as follows: 1. Assembly work of the disposable medicine cartridge 400 and the swab stick 500: Remove the whole pusher 200 on the surface of the sleeve body 100, push the medicine cartridge 400 into one end of the sleeve body 100, and use the hanging ear 410 on the surface of the medicine cartridge 400 to engage with the engaging groove 321 at the end of the rotating sleeve seat 320 to realize the installation of the medicine cartridge 400. Reinstall the pusher 200 so that one end of the shaft tube 230 passes through the inner hole of the medicine cartridge 400 and is connected to the end of the guide block 220. The shaft tube 230 faces the sealing film 401 surface of the medicine cartridge 400. At the same time, the sliding key 232 on the surface of the shaft tube 230 is located inside the guide groove 420. Load the swab stick 500 at one end of the shaft tube 230. After pushing the guide block 220 to a suitable position, insert the locking pin rod 120 from the surface of the sleeve body 100 to lock the positions of the guide block 220 and the shaft tube 230. In this locked state, the bursting disc 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; The sealing end group 300 can prevent the end of the swab stick 500 from being contaminated, and the swab preservative is sealed and stored inside the medicine cartridge 400, which can maintain long-term effectiveness.

[0041] 2. Conduct the sampling work: When holding the surface of the handheld sleeve body 100, press the end of the push rod 210 with the thumb to pull out the locking pin rod 120 on the surface of the sleeve body 100, and at the same time, push the pushing member 200 to slide inside the sleeve body 100 with the thumb to further compress the spring 222. During the sliding 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 rotational kinetic energy of the medicine capsule box 400 and the rotating sleeve seat 320. Furthermore, through the deflection of the rotating sleeve seat 320 relative to the fixed sleeve seat 310 and the guidance of the spiral chute 311 and the sliding convex 331, the deflection movement of the valve plate 330 can be realized. The valve plate 330 deflects with the rotating pin 322 as the axis to open the ports of the fixed sleeve seat 310 and the rotating sleeve seat 320. Further, the pushing movement of the shaft tube 230 realizes the ejection of the swab stick 500, and the swab stick 500 is used for sampling work; 3. End of sampling work: Release the pushing member 200, and utilize the restoring effect of the spring 222 to push the guide block 220 to move away from the sealing end group 300. Furthermore, during the retraction of the sliding key 232, after the swab stick 500 retracts into the inside of the rotating sleeve seat 320, the rotating sleeve seat 320 rotates reversely relative to the fixed sleeve seat 310, guiding each valve plate 330 to deflect and close. Under the retraction impact of the bursting disc 231 on the surface of the shaft tube 230, the bursting disc 231 pierces the hanging ear 410 on the surface of the medicine capsule box 400 and releases the preservative sealed inside the medicine capsule box 400 to soak and dissolve the swab stick 500. Under the elastic action of the guide block 220, the tension between the guide block 220 and the hanging ear 410 is maintained, thus avoiding the free deflection between the fixed sleeve seat 310 and the rotating sleeve seat 320, and further maintaining the abutting effect between each valve plate 330 to achieve an efficient sealing effect. The inner cavities of the rotating sleeve seat 320, the valve plate 330 and the medicine capsule box 400 form a whole sealed cavity for the sealed preservation of the sample on the surface of the swab stick 500; 4. Release the sample and take out the swab stick 500: 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 stick 500, and synchronously open the sealing end group 300 to pour out the liquid of the dissolved sample inside, and after disassembling and cleaning the sleeve body 100 and the pushing member 200, the above method can be repeated to install a new medicine capsule box 400 and swab stick 500.

[0042] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An ophthalmic swab sampler, characterized in that, Comprising: A sleeve body (100), a pusher (200), a sealing end group (300), a medicine capsule box (400) and a swab stick (500). One end of the sleeve body (100) is provided with a pressing wing (110), and the sealing end group (300) is fixed to the other end of the sleeve body (100); The pusher (200) includes 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). The fixed sleeve seat (310) is fixed to the end of the sleeve body (100). The rotating sleeve seat (320) is rotatably installed inside the fixed sleeve seat (310), and there is a gap between the outer periphery of the rotating sleeve seat (320) and the inner side of the fixed sleeve seat (310). A plurality of spiral sliding grooves (311) are formed on the surface of the fixed sleeve seat (310). A rotating pin (322) is provided on the surface of the rotating sleeve seat (320), and a joint 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 convex (331) slidably sleeved inside the spiral sliding groove (311) is fixedly installed on the surface of the valve plate (330). Each of the valve plates (330) is fan-shaped, and a plurality of valve plates (330) are combined to form a hemispherical cover shape; A release agent storage cavity is provided inside the medicine capsule box (400), and a sealing film (401) is provided at one end. A hanging ear (410) for engaging with the joint groove (321) is provided on the surface of the medicine capsule box (400).

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

3. The ophthalmic swab sampler according to claim 1, wherein, A sliding pin (221) is provided on the surface of the guide block (220) for guiding the sliding of the guide block (220) inside the sleeve body (100). A spring (222) is provided at one end of the guide block (220). A sleeve hole for installing the swab stick (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).

4. The ophthalmic swab sampler according to claim 3, wherein, Two ends of the spring (222) are respectively abutted against 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.

5. An ophthalmic swab sampler according to claim 1, wherein The medicine capsule box (400) is sleeved on the surface of the shaft tube (230), and a guide groove (420) is formed inside the medicine capsule box (400). A sliding key (232) is provided on the surface of the shaft tube (230), and the sliding key (232) is slidably abutted against the inside of the guide groove (420).

6. The ophthalmic swab sampler according to claim 5, characterized in that, The guide groove (420) includes an arc segment and a straight line end. The arc segment has the same pitch and rotation direction as the spiral sliding groove (311). The length of the arc segment is greater than the length of the spiral sliding groove (311). The straight line end of the guide groove (420) is arranged parallel to the axis of the shaft tube (230).

7. An ophthalmic swab sampler according to claim 5, characterized in that, The sliding key (232) is of a spring pin structure and is slidably abutted against the inside of the guide groove (420).

8. The ophthalmic swab sampler according to claim 1, characterized in that, The shaft tube (230) is disc-shaped and its surface is provided with barbs. Each barb surface is provided with a through hole for piercing the sealing film (401) on the surface of the medicine capsule box (400) and for liquid discharge.

9. An ophthalmic swab sampler according to claim 1, wherein, The spiral chute (311) is spiral-shaped, and a plurality of spiral chutes (311) are uniformly distributed on the outer periphery of the fixed socket (310) in the circumferential direction. The number of the rotating pins (322) and the spiral chutes (311) corresponds one by one to the number of the valve plates (330).

10. The ophthalmic swab sampler according to claim 1, wherein, The inner side and the outer side of the valve plate (330) are respectively in sliding contact with the outer surface of the rotating socket (320) and the inner wall of the fixed socket (310). A sealing strip is provided at the edge of each valve plate (330) for sealing in the state where adjacent valve plates (330) are in contact.

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