Rapid smearing device

Abstract

The invention belongs to the field of specimen manufacturing, and discloses a rapid smearing device which comprises a bearing frame, an extrusion part and a sealing bag. A plurality of extrusion pieces are fixed to the outer side of the bearing frame, and a sponge frame is fixed between the fixed plate and the sliding plate; the outer side of the extrusion part is sleeved with a sealing bag; the sliding plate is tightly pressed on the sponge frame under the pre-compression action of the elastic piece; the edge of the sealing bag wraps the outer edge of the extrusion part, the middle of the sealing bag correspondingly covers the opening of the cavity of the sponge frame, the glass slide is pushed along the middle of the sponge frame to be inserted into the inner side of the sponge frame together with the sealing bag during use, and the sealing bag is tightly attached to the surface of the sealing bag to move under pressure when the glass slide is pulled out. Automatic scraping and collecting of overflowing sputum samples are achieved, the risk that poisonous and harmful samples leak to pollute the environment and make contact with operators is greatly reduced, and a solid foundation is laid for biological safety protection in the whole operation process.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the field of specimen preparation, and particularly relates to a rapid smear device. BACKGROUND

[0002] Sputum specimen is an important sample source for microbiological examination (such as bacterial and fungal culture and smear microscopic examination), cytological analysis (such as tumor cell search) and molecular diagnosis in clinical laboratories, and plays a key role in the pathogenic diagnosis and condition assessment of respiratory infectious diseases (such as pulmonary tuberculosis and bacterial pneumonia) and lung tumors.

[0003] In order to ensure the accuracy and reliability of the test results, the sputum specimen often needs to be centrifuged before smear preparation. The main purposes of centrifugal treatment are: first, the centrifugal force generated by high-speed rotation separates the impurities such as saliva and oral exfoliated cells in the sputum from the deep lung secretions, realizes the enrichment of pathogenic organisms or abnormal cells, and thus improves the detection rate under the microscope; second, the composition of the precipitate after centrifugation is uniform and the concentration is increased, which is beneficial to the subsequent preparation of high-quality smears with uniform thickness and concentrated cell distribution, and provides a clearer field of view for pathological or microbiological observation.

[0004] However, due to the high viscosity and uneven texture of sputum specimen, it faces significant challenges in the centrifugation process. The traditional glass slide is simply clamped and fixed by a sponge pad, which provides limited clamping force and is difficult to distribute uniformly. Under the severe vibration and impact generated by high-speed centrifugation, the glass slide is prone to displacement, loosening or even breakage. In addition, during the insertion and removal of the glass slide, due to the higher viscosity of sputum than blood, the sponge adsorption alone can easily cause the formation of a filamentous residue between the glass slide and the sponge after the sponge and the glass slide are separated, which in turn leads to environmental pollution and increases the risk of exposure of the operator to pathogens. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present disclosure is to provide a rapid smear device, which solves the problems of filament generation, residue formation, sample pollution of the environment and increased risk of exposure of the operator to pathogens during the removal of the glass slide due to the high viscosity of sputum in the prior art.

[0006] The purpose of the present disclosure can be achieved by the following technical solutions:

[0007] A rapid smear device, comprising: a carrier frame, an extrusion piece and a sealed bag;

[0008] The outer side of the carrier frame is fixed with a plurality of extrusion pieces, and the extrusion piece comprises a fixed plate, a sliding plate and an elastic piece, the outer side of the carrier frame is fixed with a fixed plate, the upper end of the fixed plate is slidingly provided with a sliding plate, and the sliding plate and the fixed plate on the adjacent extrusion piece are fixed with an elastic piece;

[0009] The sponge frame is fixed between the fixed plate and the sliding plate;

[0010] The outer side of the extrusion piece is sleeved with a sealing bag;

[0011] The sliding plate is pressed against the sponge frame under the pre-pressure of the elastic piece;

[0012] The edge of the sealing bag wraps the outer edge of the extrusion piece, and the middle part corresponds to the cavity opening of the sponge frame. In use, the slide glass is pushed along the middle part of the sponge frame, and the sealing bag and the slide glass are inserted into the inner side of the sponge frame.

[0013] In some embodiments, the sealing bag comprises a bag body, a rubber rope and a cotton layer. The bag body is slidably arranged in the inner side of the sponge frame, and the inner wall of the bag body is fixed with the cotton layer. The opening end edge of the bag body is fixed with the rubber rope.

[0014] In some embodiments, the lower end of the bearing frame is fixed with a support disc, and a plurality of limiting compartments are arranged around the inner side of the support disc. A plurality of the bearing frames are fixed in the limiting compartments in the support disc.

[0015] In some embodiments, the bearing frame comprises a plurality of parallel arranged supporting rods. The supporting rods are fixed through the fixed plate and the sliding plate, and the supporting rods are fixedly connected with the fixed plate. The moving path of the sliding plate is adapted to the path of the supporting rods.

[0016] In some embodiments, the fixed plate is provided with locking pieces on both upper and lower sides.

[0017] In some embodiments, hooks are fixed on the side of the fixed plate and the sliding plate away from the sponge frame, and cylindrical bars are fixed on the end of the fixed plate and the sliding plate away from the bearing frame.

[0018] In some embodiments, the elastic piece is a butterfly spring or a truncated cone spring, and the position of the elastic piece corresponds to the position of the edge of the slide glass.

[0019] In some embodiments, supporting rods are fixed on the two side edges of the cylindrical bar, and the outer wall of the supporting rod is in the shape of a circular arc.

[0020] In some embodiments, an accommodating cavity is arranged in the middle part of the inner side of the sponge frame, and the shape of the accommodating cavity is matched with the shape of the slide glass.

[0021] The nouns, conjunctions or adjectives involved in the above technical solutions are explained as follows:

[0022] Fixed connection refers to the connection of parts or components after being fixed, without any relative movement;

[0023] Rotary connection refers to the connection between parts that can rotate relative to each other;

[0024] Threaded connection is a detachable fixed connection, which has the advantages of simple structure, reliable connection, convenient assembly and disassembly, and is widely used in mechanical engineering and connection structure fields;

[0025] Sliding connection refers to the connection between parts that can slide relative to each other.

[0026] The beneficial effects of the present disclosure are:

[0027] 1. Through the unique design of the sealing bag moving tightly on the surface of the slide under pressure when the slide is pulled out, automatic scraping and collection of overflowed sputum specimens are realized, which greatly reduces the risk of leakage and pollution of the environment and contact with the operator by toxic and harmful samples, and lays a solid foundation for biological safety protection in the entire operation process.

[0028] 2. Through the elastic pressure mechanism composed of the elastic member driving the sliding plate and the sponge, stable and buffered clamping of the slide is realized, which significantly improves the positioning and holding capacity and impact resistance of the slide during centrifugation, reduces the possibility of displacement, rupture and specimen scattering of the slide, and provides important support for the reliability of the detection result and the operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0030] Figure 1 is a schematic diagram of the overall structure of the present disclosure embodiment;

[0031] Figure 2 is a schematic diagram of the overall structure of the present disclosure embodiment;

[0032] Figure 3 is a schematic diagram of the overall structure of the present disclosure embodiment;

[0033] Figure 4 is a schematic diagram of the overall structure of the present disclosure embodiment; Figure 3 is a schematic diagram of the overall structure of the present disclosure embodiment;

[0034] Figure 5 is a schematic diagram of the internal cross-sectional structure of the two adjacent groups of extrusion members of the present disclosure embodiment;

[0035] Figure 6 is a schematic diagram of the connection structure of the carrier frame and the support disc of the present disclosure embodiment.

[0036] In the figure: 1, bearing frame; 11, support rod; 12, locking piece; 2, extrusion piece; 21, fixed plate; 22, sliding plate; 23, elastic piece; 221, hook; 222, cylindrical bar; 223, support rod; 3, sealing bag; 31, bag body; 32, rubber rope; 33, cotton layer; 4, sponge frame; 41, containing cavity; 5, limiting bin; 6, support disc; 7, glass slide. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0038] Please refer to Figures 1 to 6 A rapid smear device, comprising a bearing frame 1, an extrusion piece 2 and a sealing bag 3.

[0039] A plurality of extrusion pieces 2 are fixed on the outer side of the bearing frame 1, and the extrusion piece 2 comprises a fixed plate 21, a sliding plate 22 and an elastic piece 23. The fixed plate 21 is fixed on the outer side of the bearing frame 1, the sliding plate 22 is slidingly arranged on the upper end of the fixed plate 21, and the elastic piece 23 is fixed between the sliding plate 22 and the fixed plate 21 on the adjacent extrusion piece 2.

[0040] The sponge frame 4 is fixed between the fixed plate 21 and the sliding plate 22.

[0041] The extrusion piece 2 is sleeved with the sealing bag 3 on the outer side.

[0042] The sliding plate 22 is pressed against the sponge frame 4 under the pre-pressure of the elastic piece 23.

[0043] The edge of the sealing bag 3 wraps the outer edge of the extrusion piece 2, and the middle part covers the cavity opening of the sponge frame 4. In use, the glass slide 7 is inserted into the inner side of the sponge frame 4 together with the sealing bag 3 by pushing the glass slide 7 along the middle part of the sponge frame 4.

[0044] In use, the sealed bag 3 is sleeved on the outside of the extrusion piece 2, at this time, the edge of the sealed bag 3 wraps the outer edge of the extrusion piece 2, and the middle part of the sealed bag 3 corresponds to the middle part of the sponge holder 4, and the slide glass 7 is inserted into the middle part of the sponge holder 4, and the slide glass 7 is pushed towards the end close to the extrusion piece 2, and the middle part of the sealed bag 3 is sent into the sponge holder 4 in the process of inserting the slide glass 7, in the initial state, the elastic piece 23 is elastically deformed to make the sliding plate 22 exert downward pressure on the sponge holder 4, and the slide glass 7 is clamped and fixed by the extrusion piece 2 on the inside of the sponge holder 4, so as to fix the slide glass 7, then the carrier frame 1 and the slide glass 7 are rotated to make the sputum specimen in the slide glass 7 uniformly disperse to the inside of the slide glass 7, and the extrusion piece 2 clamps the slide glass 7 during the centrifugation process, and the continuous elastic force provided by the elastic piece 23 is beneficial to improve the stability of the position of the slide glass 7 in the centrifugation process, and is transmitted through the sliding plate 22 and the sponge holder 4, so that the extrusion piece 2 (especially the sponge holder 4) can stably and reliably clamp and fix the slide glass 7, and the sponge holder 4 itself has elasticity and cooperates with the elastic piece 23 to absorb part of the vibration and impact, further protect the slide glass 7 from breaking during the centrifugation process, and maintain the stability of the specimen.

[0045] When the centrifugation is completed, the slide glass 7 specimen is pulled out, the inner wall of the sealed bag 3 is in close contact with the slide glass 7 under the compression of the elastic piece 23, so as to increase the friction between the sealed bag 3 and the slide glass 7, and in the process of pulling out the slide glass 7, the sputum specimen overflowing from the edge of the slide glass 7 is collected in the sealed bag 3 in the process of pulling out, so as to reduce the pollution of the surrounding environment by the sputum specimen when the slide glass 7 is collected, and the cross infection caused by the contact of the sputum specimen with the hands of medical staff.

[0046] Inserting the slide glass 7 simultaneously completes the fixing and the initial sealing (the sealed bag 3 is pressed into the sponge holder 4), and pulling out the slide glass 7 simultaneously completes the overflow collection (the overflow is collected through the friction of the sealed bag 3). The operation process is simplified, and the steps of separately processing the overflow or additional wiping are omitted.

[0047] Please refer to Figures 4 to 5 The sealed bag 3 comprises a bag body 31, a rubber rope 32 and a cotton layer 33, the bag body 31 is slidably arranged on the inside of the sponge holder 4, the inner wall of the bag body 31 is fixed with the cotton layer 33, and the opening end edge of the bag body 31 is fixed with the rubber rope 32.

[0048] In use, the opening of the bag body 31 is turned outward, and the rubber rope 32 of the edge of the bag body 31 is sleeved on the outer side of the extrusion piece 2. By sleeving the sealing bag 3 on the outer side of the extrusion piece 2 and wrapping the edge thereof, a closed or semi-closed protection environment is formed during the insertion and extraction of the slide glass 7. After the slide glass 7 is inserted into the sealing bag 3 and the sponge frame 4, the outer periphery of the slide glass 7 is in contact with the cotton layer 33 in the sealing bag 3, and the sputum specimen overflowing from the edge of the slide glass 7 is absorbed by the cotton layer 33, so that the neatness of the outer periphery of the slide glass 7 is maintained when the slide glass 7 is extracted. The sputum can be immediately absorbed and locked by the cotton layer 33 by the capillary action and high liquid absorption of the internal fiber structure of the cotton layer 33.

[0049] Compared with the conventional blood specimen detection, the sputum has higher viscosity. The outer periphery of the conventional slide glass 7 is only adsorbed by the sponge. Due to the higher viscosity of the sputum, the sputum is easily pulled into a filament shape during adsorption. These filament-shaped sputums not only pollute the surrounding environment of the equipment, but also more seriously increase the risk of cross infection of the operator contacting the pathogen.

[0050] The rubber rope 32 is integrated on the edge of the opening of the bag body 31. When the opening of the bag body 31 is turned outward and the rubber rope 32 is sleeved on the outer side of the extrusion piece 2, the rubber rope 32 can be tightly wrapped around the extrusion piece 2 due to its inherent high elasticity and shrinkage.

[0051] The material of the outer bag body 31 is polyethylene material. Since it has good waterproofness, the sputum overflowing from the slide glass 7 is collected in the sealing bag 3, so as to prevent the sponge frame 4 outside from being polluted. When the new slide glass 7 is put into the sponge frame 4 in the next centrifugal operation, the next slide glass 7 is easily polluted.

[0052] Please refer to Figure 6 The lower end of the bearing frame 1 is fixed with a support disc 6, and a plurality of limiting warehouses 5 are arranged around the inner side of the support disc 6. A plurality of bearing frames 1 are fixed in the limiting warehouses 5 in the support disc 6.

[0053] In use, the drive motor is fixed on the inner bottom of the support disc 6, and the output shaft of the drive motor is coaxially arranged with the central axis of the support disc 6. When the drive motor rotates, the support disc 6 rotates coaxially, and then the bearing frame 1 and the slide glass 7 on the bearing frame 1 revolve around the central axis of the support disc 6, so that the sputum specimen in the slide glass 7 is more uniformly distributed by high-speed rotation, which is beneficial to more accurate detection, testing and observation.

[0054] Please refer to Figures 3 to 4The bearing frame 1 comprises a plurality of parallelly arranged supporting rods 11, and the supporting rods 11 are arranged through the fixing plate 21 and the sliding plate 22, and the supporting rods 11 are fixedly connected with the fixing plate 21, and the moving path of the sliding plate 22 is adapted to the path of the supporting rods 11.

[0055] The position of the fixing plate 21 is fixed by the supporting rods 11, and the elastic modulus of different springs is different, so if the distance between the sliding plate 22 and the fixing plate 21 is the same, it is difficult to control the pressure of the elastic member 23 on the slide glass 7, and the sliding plate 22 is slidingly connected with the supporting rods 11, and the sliding plate 22 is pushed up and down, so that the sliding plate 22 slides up and down along the supporting rods 11, and the distance between the sliding plate 22 and the fixing plate 21 below the sliding plate 22 is adjusted, which is beneficial to improve the applicability of the device.

[0056] Please refer to Figures 3 to 4 The upper and lower sides of the fixing plate 21 are provided with locking members 12.

[0057] The locking member 12 is a clamp, a similar flange structure or the like which can be fixed outside the supporting rod 11, or a C-shaped plastic buckle, which is elastically deformed to make the buckle enter the outer wall of the supporting rod 11 from the opening of the C-shaped buckle, so as to realize the quick installation of the locking member 12, and form axial fixation on the supporting rod 11, so that the outer side of the supporting rod 11 forms a protrusion similar to a shaft shoulder, and at this time, the diameter of the through hole of the sliding plate 22 through which the supporting rod 11 penetrates is smaller than the diameter of the locking member 12, so that when the sliding plate 22 moves upward, it is rigidly resisted by the locking member 12, and then the distance between the sliding plate 22 and the fixing plate 21 is adjusted.

[0058] Please refer to Figures 2 to 5 The fixing plate 21 and the sliding plate 22 are fixed with hooks 221 away from the sponge frame 4, and the fixing plate 21 and the sliding plate 22 are fixed with cylindrical bars 222 away from the bearing frame 1.

[0059] In use, the rubber rope 32 of the sealing bag 3 is expanded outward to cause elastic deformation of the rubber rope 32, until the area surrounded by the rubber rope 32 completely wraps the fixing plate 21 and the sliding plate 22, and the rubber rope 32 at the end of the bag body 31 is hung on the hooks 221 on the fixing plate 21 and the sliding plate 22, and the elastic restoring force of the rubber rope 32 is used to tighten the rubber rope 32 on the outer side of the sliding plate 22 and the fixing plate 21, so as to fix the position of the bag body 31, which is beneficial to improve the convenience of disassembly, and when the distance between the fixing plate 21 and the sliding plate 22 changes, the rubber rope 32 can adaptively contract and always be sleeved on the outer side of the fixing plate 21 and the sliding plate 22, which is beneficial to improve the stability of the sealing bag 3.

[0060] And when the slide 7 is taken out, the contact part of the slide 7 and the bag 31 is the part of the sealed bag 3 which is deep into the sponge frame 4, and the part of the bag 31 which wraps the pressing piece is not in contact with the slide 7, so the inside and outside of the end of the bag 31 with the rubber rope 32 are not in direct contact with the slide 7 during the centrifugal operation, so that the medical staff can reduce the pollution to the medical staff when taking off the bag 31.

[0061] Please refer to Figure 2 The elastic member 23 is a butterfly spring or a truncated cone spring, and the position of the elastic member 23 corresponds to the position of the edge of the slide 7.

[0062] In use, the compression of the elastic member 23 makes the tightness of the four sides of the two mutually adhered slides 7 greater than the tightness of the middle part, so that the resistance of the sputum to move to the middle part is much smaller than the resistance to move to the four sides of the slide 7. Therefore, during the high-speed rotation of the slide, the sputum specimen is affected by the centrifugal force and moves to the middle part first and is evenly distributed in the inner part of the slide 7, rather than directly rushing to the tightly sealed edge. This controlled flow pattern ensures that the sputum has sufficient time and power to achieve maximum uniformity in the middle part of the slide 7, laying a solid foundation for subsequent centrifugal enrichment and microscopic observation, significantly improving the detection rate and reducing false negatives caused by uneven distribution.

[0063] Please refer to Figure 4 The two side edges of the cylindrical bar 222 are fixed with support rods 223, and the outer wall of the support rod 223 is arc-shaped.

[0064] In use, the contact surface of the fixed plate 21 and the sliding plate 22 and the bag 31 is arc-shaped, which reduces the sharp edges of the extrusion piece 2 around the slide 3 when the sealed bag 3 is fixed outside the extrusion piece 2, thereby reducing the damage to the sealed bag 3 and the leakage of the sputum in the sealed bag 3, which is conducive to improving the safety and reliability of the fixed sealed bag 3.

[0065] Please refer to Figure 4 The inner side of the sponge frame 4 is provided with a receiving cavity 41, and the shape of the receiving cavity 41 is consistent with the shape of the slide 7.

[0066] In use, the sealed bag 3 is installed at the entrance of the receiving cavity 41, and the slide 7 is inserted into the receiving cavity 41. After the slide 7 is inserted into the receiving cavity 41, the sponge frame 4 is a semi-enclosed structure for the slide 7, and the side wall of the receiving cavity 41 exerts an inward pressure on the slide 7 and the sealed bag 3, so that the bag 31 and the side wall of the slide 7 are more closely adhered.

[0067] Compared with the clamping and fixing of the bag 31 by the sponge sheet from the upper and lower two, the side wall of the accommodating cavity 41 can provide axial positioning for the bag 31, and the stability of the position of the slide 7 during revolution is further improved.

[0068] When the slide 7 is pulled out, the continuous radial pressure applied by the side wall of the accommodating cavity 41 is the source of generating and maintaining a large and stable friction force. The pressure ensures that the inner wall of the sealed bag 3 (and the cotton layer 33) can be tightly attached to the side wall of the slide 7 like a "rubber squeegee" when being pulled out, so as to effectively scrape, adhere and collect all the residual sputum attached to the side wall. Without the stable pressure provided by the side wall of the accommodating cavity 41, the scraping effect will be greatly reduced.

[0069] The application provides a rapid smear device.

[0070] When the slide 7 is inserted, the sealed bag 3 is sleeved on the outside of the extrusion piece 2, and then the slide 7 is inserted along the opening of the accommodating cavity 41 in the sponge frame 4; in this process, the slide 7 presses the middle part of the sealed bag 3 into the cavity, and the elastic piece 23 pushes the sliding plate 22 to compress the slide 7 during the insertion process; the sliding plate 22 stably clamps the slide 7 in the sponge frame 4 by means of the continuous pressure generated by the elastic piece 23 recovering the deformation, so as to realize reliable fixation and preliminary sealing of the slide 7.

[0071] During centrifugation, the continuous elastic pressure ensures the stability of the position of the slide 7, and the sponge frame 4 cooperates with the buffer vibration to prevent the slide 7 from being broken and the sputum from being scattered.

[0072] When the slide 7 is pulled out, the slide 7 is pulled out outward, the sealed bag 3 moves closely to the surface of the slide 7 under the pressure of the elastic piece 23 which is not released, and the viscous sputum overflowing from the edge of the slide 7 is effectively scraped and collected in the bag by the friction and the adsorption of the cotton layer 33 laid on the inner wall of the bag 31, so as to avoid sputum stringing or external leakage to pollute the environment and significantly reduce the risk of cross infection.

[0073] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means 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 disclosure. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0074] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present disclosure, and various changes and improvements can be made to the present disclosure without departing from the spirit and scope of the present disclosure, and all such changes and improvements fall within the scope of the claimed present disclosure.

Claims

1. A rapid smear device, characterized in that: include: A carrier frame (1), an extruded member (2) and a sealed bag (3); A plurality of extrusion members (2) are fixed on the outside of the carrier (1), and the extrusion members (2) include a fixed plate (21), a sliding plate (22) and an elastic member (23); a fixed plate (21) is fixed on the outside of the carrier (1), and a sliding plate (22) is slidably provided on the upper end of the fixed plate (21), and an elastic member (23) is fixed between the sliding plate (22) and the fixed plate (21) on the adjacent extrusion member (2); A sponge rack (4) is fixed between the fixed plate (21) and the sliding plate (22); A sealing bag (3) is sleeved on the outer side of the extrusion piece (2); The sliding plate (22) is pressed against the sponge rack (4) under the pre-pressure of the elastic member (23); The edge of the sealing bag (3) wraps around the outer edge of the extrusion piece (2), and the middle portion thereof corresponds to and covers the cavity opening of the sponge frame (4). When in use, the glass slide (7) is pushed along the middle portion of the sponge frame (4) to insert the sealing bag (3) and the glass slide (7) together into the inner side of the sponge frame (4).

2. A rapid smear device according to claim 1, characterized in that: The sealing bag (3) comprises a bag body (31), a rubber rope (32) and a cotton layer (33); the bag body (31) is slidably arranged on the inner side of the sponge rack (4); the cotton layer (33) is fixed to the inner wall of the bag body (31); and the rubber rope (32) is fixed to the edge of the opening end of the bag body (31).

3. A rapid smear device according to claim 1, characterized in that: A support plate (6) is fixed to the lower end of the carrier (1), and a plurality of limiting bins (5) are provided around the inner side of the support plate (6), and the plurality of carriers (1) are fixed in the limiting bins (5) in the support plate (6).

4. A rapid smear device according to claim 3, characterized in that: The support frame (1) comprises a plurality of support rods (11) arranged in parallel, and the outer sides of the support rods (11) pass through a fixed plate (21) and a sliding plate (22), and the support rods (11) are fixedly connected to the fixed plate (21), and the moving path of the sliding plate (22) is adapted to the path of the support rods (11).

5. A rapid smear device according to claim 4, characterized in that: Locking pieces (12) are provided on both the upper and lower sides of the fixing plate (21).

6. A rapid smear device according to claim 5, characterized in that: A hook (221) is fixed to one side of the fixed plate (21) and the sliding plate (22) away from the sponge rack (4), and a cylindrical bar (222) is fixed to one end of the fixed plate (21) and the sliding plate (22) away from the supporting frame (1).

7. A rapid smear device according to claim 6, characterized in that: The elastic member (23) is a butterfly spring or a truncated cone spring, and the position of the elastic member (23) corresponds to the position of the edge of the slide glass (7).

8. A rapid smear device according to claim 7, characterized in that: Support rods (223) are fixed to both side edges of the cylindrical bar (222), and the outer wall of the support rod (223) is in an arc shape.

9. A rapid smear device according to claim 1, characterized in that: An accommodating cavity (41) is provided in the middle of the inner side of the sponge rack (4), and the shape of the accommodating cavity (41) matches the shape of the glass slide (7).

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