A dual-slide constant-thickness coating device

Abstract

This invention relates to the field of medical testing equipment technology, and in particular to a dual-slide thickness-fixed smear device. It includes a first and second support member, respectively carrying a first and a second slide, an operating member, a spacing adjustment unit, and a slide spreading transmission assembly. The first slide can move relative to the first support member in a first direction, and the two support members can move relative to each other in a second direction. When the operating member is pushed, the spacing adjustment unit sequentially guides the first slide from a sample-receiving state maintaining the sample spacing to a slide-spreading state maintaining the slide-spreading spacing, and after spreading, it separates from the second slide. The slide spreading transmission assembly synchronously drives the two support members to move in opposite directions. The housing is provided with a specimen input interface and an opening for the second slide to be removed. This smear device can continuously complete the pressing, thickness-fixed slide spreading, separation, and slide delivery after specimen collection with a single pushing and moving action, reducing the interference of manual slide pressing, breaking, and removal on the specimen smearing area.

Description

Technical Field

[0001] This invention relates to the field of medical testing equipment technology, and in particular to a dual-slide constant-thickness coating device. Background Technology

[0002] During fine-needle aspiration of the thyroid gland, tissue sampling, and cytological examination, a small amount of the obtained specimen is usually added to a glass slide and then spread or pressed with another glass slide to form a smear of suitable thickness and relatively uniform distribution on the working surface of the slide. The thickness and integrity of the smear layer will affect subsequent fixation, staining, microscopic observation, and image analysis.

[0003] Current manual smear techniques typically require the operator to perform actions such as sample drop, pressing two slides together, relative spreading, slide separation, and slide removal separately. This can lead to the following problems: There is a lack of stable positioning between the needle tip and the slide, potentially causing some specimens to deviate from the effective smear area, increasing the risk of specimen loss; the pressing force and minimum spacing between the two slides depend on the operator's experience; excessive pressure may cause excessive compression of cells, while insufficient pressure hinders specimen spreading; the relative movement direction, speed, and travel distance of the two slides are difficult to stabilize, leading to fluctuations in smear length and distribution; and if the slide is lifted obliquely or pulled further after spreading, secondary dragging or scraping may occur at the end of the smear.

[0004] Therefore, there is a need for a device that can accurately receive small amounts of puncture specimens and complete the specimen thickness expansion through controlled pressing, spreading, and separation actions. Summary of the Invention

[0005] To address the problems of positioning deviation, unstable pressing and spreading states, and separation marks that easily occur in existing open-type manual coating processes, this invention provides a dual-slide thickness coating device, including a first support member and a second support member, respectively used to support the first and second glass slides. The working surfaces of the first and second glass slides are arranged opposite to each other. The first and second support members can move relative to each other along a second direction parallel to the working surfaces. The first glass slide is movably disposed on the first support member and can move relative to the first support member along a first direction toward or away from the second glass slide. An operating member is connected to the first support member and is used to drive the first support member to move along the second direction. A spacing adjustment unit cooperates with the first glass slide to guide the first glass slide to move along the first direction as the first support member moves along the second direction driven by the operating member, so that the first and second glass slides switch from a sample-attachment state that maintains the sample-attachment spacing to a spreading state that maintains the spreading spacing. A spreading transmission assembly is connected to the first and second support members respectively to transmit the movement of the first support member along the second direction to the second support member, so that the first and second support members move in opposite directions.

[0006] Furthermore, the first support component includes a support frame and an elastic support member disposed on the support frame. The first glass slide is movably disposed on the support frame via the elastic support member. The elastic support member applies an elastic force to the first glass slide in a first direction away from the second glass slide, causing the first glass slide to at least partially protrude from the support frame in the sample receiving state. The elastic support member can maintain a sample receiving distance between the two glass slides during the sample dispensing stage to facilitate specimen entry, and allows the first glass slide to be compressed and retracted automatically during subsequent travel, providing a continuous operating basis for thickness pressing and separation after slide spreading.

[0007] Furthermore, the spacing adjustment unit has a moving path along the first carrier in the second direction, which sequentially includes a holding surface and a pressing surface. When the first carrier moves to the holding surface, the first glass slide abuts against the holding surface under the action of the elastic support. At this time, the elastic support is in a released state, and a sample-fitting spacing is formed between the first and second glass slides. When the first carrier moves to the pressing surface, the first glass slide moves along the first direction and approaches the second carrier. At this time, the elastic support is compressed, and a slide-spreading spacing is formed between the first and second glass slides. The pushing action of the first carrier along the second direction can synchronously control the first glass slide to switch spacing along the first direction, so that the sample-fitting state and the slide-spreading state are formed sequentially according to the operation stroke, without the need to press the glass slide separately.

[0008] Furthermore, the spacing adjustment section also includes a release surface located after the pressing surface. When the first carrier moves to the release surface, the first glass slide moves along the first direction and moves away from the second glass slide under the rebound action of the elastic support. After the first glass slide finishes its spreading stroke, it can automatically move away from the second glass slide, so that spreading and separation are completed continuously along the same push button stroke, reducing the dragging of the coating layer caused by manually prying the glass slide apart.

[0009] Furthermore, an inclined pressing surface is provided between the holding surface and the pressing surface. This inclined pressing surface is used to gradually apply pressure to the first glass slide, causing the first glass slide to move from a sample-attached state protruding from the support frame to a spread-out state. An inclined separating surface is provided between the pressing surface and the releasing surface. This inclined separating surface is used to gradually release pressure to the first glass slide, causing the first glass slide to return from the spread-out state to a separated state protruding from the support frame. The inclined pressing surface and the inclined separating surface respectively cause the first glass slide to gradually approach and gradually move away from the second glass slide, which can reduce the impact on the glass slide and the disturbance of the coating layer caused by abrupt changes in spacing.

[0010] Furthermore, the spacing adjustment section includes at least two stepped strips extending along the second direction and spaced apart. The holding surface, pressing surface, releasing surface, inclined pressing surface, and inclined separating surface are all formed on the side of the stepped strip closest to the first glass slide. At least two stepped strips are disposed on both sides of the first glass slide's movement path in the second direction. The stepped strips on both sides can simultaneously apply and release pressure to the opposite sides of the first glass slide, reducing the first glass slide's skewness during spacing switching and ensuring that the slide spacing remains consistent along the transverse direction of the glass slide.

[0011] Furthermore, the slide spreading drive assembly includes rack one, rack two, and a drive gear. Rack one is disposed on the first support member, rack two is disposed on the second support member, and the drive gear is disposed between rack one and rack two and meshes with both respectively, so as to drive the second support member to move in the opposite direction when the first support member moves in the second direction. The unidirectional input applied to the first support member by the push button can be synchronously converted into the opposite movement of the two support members, ensuring that the first and second glass slides maintain a relatively centrally symmetrical movement trajectory during the slide spreading process, which is beneficial to maintaining the uniformity of the coating layer and the stability of the slide spacing.

[0012] Furthermore, rack one is disposed at the bottom of the first support member and extends to the bottom of the second support member, and rack two is disposed at the bottom of the second support member. Rack one and rack two extend along the second direction and are respectively located on opposite sides of the transmission gear. The two racks are disposed on opposite sides of the transmission gear, enabling reverse linear transmission within the compact space at the bottom of the housing.

[0013] Furthermore, the operating component is a push button fixedly mounted on the first support component. The dual-slide thickness coating device also includes a housing that accommodates the first and second support components. The housing has a push button guide groove extending along a second direction, through which the push button extends out of the housing. One end of the housing has an opening located on the movement path of the second slide along the second direction and is in clearance fit with the second slide. By pushing the push button from the starting end near the opening to the ending end away from the opening, the slide spreading, separation, and delivery of the second slide can be completed in a coordinated manner. After the second slide extends, it can be directly removed along the second direction.

[0014] Furthermore, the box body is also provided with a specimen input interface that communicates with the sample receiving area between the first and second glass slides; two guide strips extending along a second direction are provided inside the box body, and the second carrier component slides in cooperation with the two guide strips respectively; the push button is connected to the first carrier component through a connecting part that slides in cooperation with the inner wall of the box body. The specimen input interface allows specimens to be dripped in from outside the box body; the two guide strips restrict the movement direction of the second carrier component, and the connecting part provides auxiliary guidance for the first carrier component, thereby enabling the two carrier components to maintain stable linear movement when completing the slide spreading and slide delivery linkage.

[0015] The beneficial effects of this invention are as follows: This invention provides a dual-slide thickness-fixed smear device. The pushing action of the first support member along the second direction simultaneously serves as the driving input for switching the spacing between the first slides, spreading the two slides in opposite directions, and delivering the second slide. This allows the operator to complete the progressive pressing after sample drop, thickness-fixed slide spreading, rebound separation, and second slide extension by simply moving the push button from the starting end near the opening to the ending end away from the opening. This reduces the need for separate operations such as pressing, breaking, and opening the box to retrieve the slides, and ensures that each action occurs continuously according to a predetermined stroke. The gap between the second slide and the opening also ensures relative shielding of the box, and the clearance on one side of the working surface reduces the possibility of scraping the thyroid specimen smear area during slide delivery and retrieval. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort. Figure 1 This is a schematic diagram of the external structure of the coating apparatus; Figure 2 This is a schematic diagram of the internal structure of the coating apparatus; Figure 3 This is a first-angle disassembly diagram of the coating apparatus; Figure 4 This is a second-angle disassembly diagram of the coating apparatus; Figure 5 This is a structural schematic diagram of the first load-bearing component; Figure 6 This is a structural schematic diagram of the second load-bearing component; Figure 7 This is a schematic diagram of the initial, spreading, and separation processes of the smearing apparatus; Figure 8 This is a schematic diagram of the initial position of the two glass slides; Figure 9 This is a schematic diagram of the initial state of the display panel transmission assembly; Figure 10 This is a schematic diagram showing the position of the two slides in the display state; Figure 11 This is a schematic diagram of the display panel transmission assembly in the display panel state; Figure 12 This is a schematic diagram showing the positions of the two glass slides in their separated state; Figure 13 This is a schematic diagram of the split-state panel transmission assembly; In the figure: 1. First support member, 11. Support frame, 12. Elastic support member, 13. Connecting part, 2. Second support member, 21. Supporting bottom frame, 22. Side baffle, 23. End baffle, 24. Extension part, 25. Clearance groove, 3. First slide, 4. Second slide, 5. Operating component, 6. Spacing adjustment part, 61. Holding surface, 62. Pressing surface, 63. Release surface, 64. Inclined pressing surface, 65. Inclined separation surface, 66. Limiting part, 7. Slide spreading transmission assembly, 71. Rack one, 72. Rack two, 73. Transmission gear, 8. Box body, 81. Push button guide groove, 82. Specimen input interface, 83. Opening, 9. Guide strip. Detailed Implementation

[0017] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] like Figure 1-4 As shown, this embodiment provides a dual-slide thickness coating device, including a first support member 1 and a second support member 2. The first support member 1 is used to support a first slide 3, and the second support member 2 is used to support a second slide 4. The working surfaces of the first slide 3 and the second slide 4 are arranged opposite to each other. The first support member 1 and the second support member 2 can move relative to each other along a second direction parallel to the two working surfaces. The first slide 3 is movably disposed on the first support member 1 and can move relative to the first support member 1 along a first direction toward or away from the second slide 4. An operating member 5 is connected to the first support member 1 and is used to drive... The first support member 1 moves along the second direction; the spacing adjustment part 6 is disposed on the lid of the box body 8 along the moving path of the first support member 1, and cooperates with the first glass slide 3 to guide the first glass slide 3 to move along the first direction when the first support member 1 moves along the second direction, so that the two glass slides switch from the sample receiving state of maintaining the sample receiving distance to the slide spreading state of maintaining the slide spreading distance, and the sample receiving distance is greater than the slide spreading distance; the slide spreading transmission assembly 7 is respectively connected to the first support member 1 and the second support member 2 for transmitting the movement of the first support member 1 along the second direction to the second support member 2, so that the two support members move in opposite directions. Among them, the upper and lower positions of the first glass slide 3 and the second glass slide 4 in the device can be interchanged, as long as the first glass slide 3 can move along the first direction and cooperate with the spacing adjustment part 6.

[0019] For ease of explanation, the direction perpendicular to the working surfaces of the first slide 3 and the second slide 4 is defined as the first direction, and the direction parallel to the two working surfaces and consistent with the linear movement path of the two support members is defined as the second direction. These directions are only used to illustrate the relative positions and movement relationships between the components and do not constitute a limitation on the actual placement of the device. During operation, the operator applies a thrust along the second direction to the operating member 5. This thrust is transmitted to the first slide 3 via the first support member 1, causing the first slide 3 to switch its spacing along the first direction according to the path defined by the spacing adjustment unit 6; on the other hand, it is transmitted to the second support member 2 via the slide spreading transmission assembly 7, causing the two support members to produce relative displacements in opposite directions, thereby unfolding the specimen located between the two working surfaces at the slide spreading spacing.

[0020] like Figure 5 As shown, in the above-mentioned basic structure, the first glass slide 3 not only needs to be able to approach the second glass slide 4 under pressure, but also needs to maintain a large sample gap during the sample assembly stage and automatically reset after the pressure is removed. To this end, the first support member 1 includes a support frame 11 and an elastic support member 12 disposed on the support frame 11. The support frame 11 is located around the periphery of the first glass slide 3, and the first glass slide 3 is movably disposed on the support frame 11 via the elastic support member 12. The elastic support member 12 applies an elastic force to the first glass slide 3 in a first direction away from the second glass slide 4, causing the first glass slide 3 to at least partially protrude from the support frame 11 in the sample assembly state; when the first glass slide 3 is subjected to pressure toward the second glass slide 4, the elastic support member 12 is compressed, and the first glass slide 3 can retract into the support frame 11 and become flush with the upper surface of the support frame 11. The elastic support 12 can be a spring, sheet, or other elastic component capable of applying a restoring force to the first slide 3. A guide column is provided at a corresponding position on the support frame 11 for the elastic support 12 to be installed. Due to the restriction of the box cover 8, the first slide 3 under the action of the elastic support 12 will not fall out of the box 8. The box cover and the box 8 can be detachably fixed by means of snap-fit ​​connection, hinge connection or magnetic connection, thereby forming a relatively closed chamber that accommodates the first support 1, the second support 2 and the two slides. This chamber not only provides the necessary axial limiting space for the elastic support 12 to prevent the first slide 3 from falling out under the action of the restoring force, but also effectively isolates external environmental interference to ensure the cleanliness and stability of the specimen during the sample collection and slide spreading process.

[0021] like Figure 6As shown, the second support member 2 includes a supporting base frame 21, side baffles 22, and end baffles 23. The side baffles 22 are disposed on both sides of the moving path of the supporting base frame 21 along the second direction, and the end baffles 23 are disposed at the end of the supporting base frame 21 away from the opening 83, so as to stably support the second glass slide 4 and not hinder the subsequent removal of the second glass slide 4 from the opening 83. In order to prevent the end of the second glass slide 4 from moving, the upper edge of the end baffle 23 is also provided with a bent part that contacts the upper surface of the second glass slide 4. This bent part does not put pressure on the glass slide, but only serves as an end limit. In order to further ensure the stability of movement in the second direction, the supporting base frame 21 is also provided with extensions 24 on both sides of the moving path in the second direction to cooperate with the guide strips 9 in the box 8. In order to avoid the rack 71 that extends to the bottom of the second support member 2 and is connected to the first support member 1, the side baffles 22 are provided with a clearance groove 25 extending along the second direction.

[0022] like Figure 8-13 As shown, after the first slide 3 is lifted by the elastic support 12, it needs to be stopped at the sample receiving position and the slide spreading position respectively within the predetermined stroke of the operating member 5. For this purpose, the spacing adjustment part 6 has a holding section and a pressing section with different heights along the moving path of the first support member 1 in the second direction. The holding section and the pressing section have a holding surface 61 and a pressing surface 62 respectively. When the first support member 1 is located at the position corresponding to the holding surface 61, the first slide 3 abuts against the holding surface 61 under the action of the elastic support member 12. The elastic support member 12 is in the released state, and a sample receiving gap is formed between the two slides. When the first support member 1 moves to the position corresponding to the pressing surface 62, the pressing surface 62 applies pressure to the first glass slide 3 toward the second glass slide 4, causing the first glass slide 3 to move closer to the second glass slide 4 along the first direction and compress the elastic support member 12. As a result, a slide spreading gap is formed between the two working surfaces. The supporting frame 11 limits the pressure position of the first glass slide 3, so that the first glass slide 3 remains in a repeatable slide spreading position when passing through the corresponding section of the pressing surface 62.

[0023] After the specimen is unfolded at the specified slide spacing, if the two working surfaces remain pressed together, the coating layer can easily be dragged again when the slide is removed. To release the pressure between the two slides within the same operating stroke, the spacing adjustment unit 6 also includes a release surface 63 located after the pressing surface 62. When the first support member 1 moves to the position corresponding to the release surface 63, the pressure applied by the spacing adjustment unit 6 to the first slide 3 is removed, the elastic support member 12 rebounds and pushes the first slide 3 away from the second slide 4 in a first direction, so that the two working surfaces automatically separate after the slide unfolding is completed. Preferably, a limiting part 66 is also provided after the release surface 63 to keep the two slides in a separated state.

[0024] Switching directly from the sample mounting spacing to the slide spreading spacing, or suddenly releasing the first slide 3 after spreading, may cause slide impact and disturb a small amount of specimen. To make the pressing and separation process smoother, an inclined pressing surface 64 is provided between the holding surface 61 and the pressing surface 62, and an inclined separation surface 65 is provided between the pressing surface 62 and the release surface 63. The inclined pressing surface 64 gradually transitions towards the second slide 4 along the moving direction of the first support member 1, so that the first slide 3 is subjected to gradually increasing pressure and moves from the sample mounting position to the slide spreading position; the inclined separation surface 65 gradually moves away from the second slide 4 along the moving direction, so that the pressure applied to the first slide 3 gradually decreases, and the first slide 3 gradually returns from the slide spreading position to the sample mounting position under the action of the elastic support member 12. Among them, the holding surface 61, the pressing surface 62, and the release surface 63 can be mutually parallel planes, and the inclined pressing surface 64 and the inclined separation surface 65 can also be curved surfaces that can form a continuous transition.

[0025] When the first slide 3 passes the aforementioned adjustment surfaces, applying pressure only to one side or a local area may cause the first slide 3 to deviate relative to the second slide 4. To enable the relative spacing of the two sides of the first slide 3 to switch synchronously, the spacing adjustment part 6 includes at least two stepped strips extending along the second direction and spaced apart. The at least two stepped strips are located on both sides of the moving path of the first slide 3. The holding surface 61, pressing surface 62, releasing surface 63, inclined pressing surface 64, and inclined separating surface 65 are all formed on the side of the stepped strip closest to the first slide 3 and are correspondingly provided on the stepped strips on both sides. When the first slide 3 moves with the first carrier 1, its relative sides are simultaneously subjected to pressing or releasing action, thereby maintaining parallelism to the second slide 4 during the spacing switching process.

[0026] After the first support member 1 moves along the second direction, the movement needs to be reliably transmitted to the second support member 2 to form the opposite spreading displacement of the two glass slides. For this purpose, the spreading transmission assembly 7 includes a rack 71, a rack 72, and a transmission gear 73. The rack 71 is disposed on the first support member 1, the rack 72 is disposed on the second support member 2, and the transmission gear 73 is located between and meshes with both racks 71 and 72. When the operating member 5 pushes the first support member 1 to move along the second direction, the rack 71 drives the transmission gear 73 to rotate. The transmission gear 73 then drives the rack 72 and the second support member 2 to move in opposite directions, causing the two glass slides to separate within the section maintaining the spreading distance and completing the spreading process.

[0027] When using rack and pinion reverse transmission, it is also necessary to reduce the space occupied by the transmission structure in the device plane. To allow the display panel transmission assembly 7 to be compactly arranged below the two support members, rack 1 71 is located at the bottom of the first support member 1 and extends to the bottom of the second support member 2, while rack 2 72 is located at the bottom of the second support member 2. Both rack 1 71 and rack 2 72 extend along the second direction and are located on opposite sides of the transmission gear 73. Thus, when the transmission gear 73 rotates, it can simultaneously mesh with the two racks that are offset vertically, converting the unidirectional displacement of the first support member 1 into the reverse displacement of the second support member 2.

[0028] To reduce external contact during the slide preparation process and provide movement boundaries for the operating component 5 and the two carriers, this embodiment also includes a housing 8. The housing 8 houses the first carrier 1 and the second carrier 2. The operating component 5 is a push button fixedly mounted on the first carrier 1. The housing 8 has a push button guide groove 81 extending along a second direction. The push button extends out of the housing 8 via the push button guide groove 81, allowing the operator to drive the first carrier 1 from outside the housing 8. One end of the housing 8 has an opening 83, located on the movement path of the second slide 4 along the second direction and with a clearance fit to the second slide 4. When the second carrier 2 moves towards the opening 83 under the action of the slide spreading transmission assembly 7, the second slide 4 can gradually extend out of the housing 8 through the opening 83, allowing it to be directly removed along the second direction after spreading. The outline of the opening 83 is adapted to the outer outline of the second slide 4, with a small gap between them allowing the second slide 4 to slide smoothly. The side of the opening 83 facing the working surface of the second slide 4 avoids the specimen coating area to reduce the possibility of the well wall scraping the specimen when the slide is extended and removed. The specific outline and fitting gap of the opening 83 can be determined according to the shape of the second slide 4 and the position of the specimen coating area, but it should simultaneously meet the requirements of allowing the second slide 4 to move smoothly and the well wall avoiding the specimen coating area on its working surface.

[0029] With the two slides enclosed in the housing 8, sample dispensing needs to be performed from outside the housing 8, and the movement direction of the two support components needs to be restricted. To meet this requirement, the housing 8 is provided with a specimen input interface 82, which communicates with the sample receiving area between the first slide 3 and the second slide 4. Preferably, the specimen input interface 82 is opposite to the slide spreading area so that the slide spreading operation can be performed immediately after the specimen is dispensed. The housing 8 has a mounting hole into which a rubber stopper is inserted to form the specimen input interface 82. The rubber stopper has a through hole in the middle for a pipette tip or dropper to pass through. The rubber stopper is made of elastic material and can close relatively after the operating tool is removed, preventing external dust or contaminants from entering the housing 8 and affecting the specimen quality.

[0030] The box body 8 is provided with two guide strips 9 extending in the second direction. The two sides of the second support member 2 are slidably engaged with the two guide strips 9. Preferably, the cross-section of the guide strips 9 is L-shaped. The two sides of the second support member 2 are provided with extensions 24 that engage with the L-shaped grooves. The engagement between the L-shaped guide strips 9 and the second support member 2 can prevent the second support member 2 from moving up and down, further ensuring the stability of movement in the second direction. The push button is connected to the first support member 1 through the connecting part 13. The cross-section of the connecting part 13 is L-shaped. The connecting part 13 is slidably engaged with the inner wall of the box body 8 to provide auxiliary guidance for the first support member 1. Thus, the specimen can enter between the two working surfaces without opening the box body 8. The first support member 1 and the second support member 2 are kept moving in the second direction under the constraint of the connecting part 13 and the guide strips 9, respectively.

[0031] The usage process of this embodiment is as follows: Figure 7 As shown, in the initial sample reception state, the push button is located at the starting end of the push button guide groove 81 near the opening 83. The ends of the first slide 3 and the second slide 4 facing the opening 83 are both located at the opening 83. The first slide 3 is abutted against the holding surface 61 under the action of the elastic support 12, and a sample reception distance is maintained between the two working surfaces. At this time, a thyroid puncture specimen or other specimen to be tested is dripped in through the specimen input interface 82 on the box cover. The specimen falls onto the second slide 4 at a position adjacent to the first slide 3. When the first slide 3 moves under the drive of the push button, the specimen immediately enters the sample reception area between the two working surfaces.

[0032] After the sample is dispensed, the operator pushes the push button from the starting end near the opening 83 to the ending end away from the opening 83 in the second direction. The first slide 3 moves with the first carrier 1 in the corresponding section of the holding surface 61, and then enters the corresponding section of the inclined pressing surface 64. The inclined pressing surface 64 gradually applies pressure to the first slide 3, making the first slide 3 approach the second slide 4 and compressing the elastic support 12. After the first slide 3 enters the corresponding section of the pressing surface 62, the two working surfaces maintain the slide spacing. At the same time, the first carrier 1 continues to move away from the opening 83, and the second carrier 2 moves towards the opening 83 under the action of the slide spreading transmission assembly 7. The two slides are pulled apart in opposite directions, so that the specimen is spread at the set spacing and a coating layer is formed along the working surface.

[0033] As the first slide 3 continues to enter the corresponding section of the inclined separation surface 65, the inclined separation surface 65 gradually releases the pressure on the first slide 3, and the elastic support 12 rebounds and pushes the first slide 3 away from the second slide 4. After the first slide 3 reaches the release surface 63, the two working surfaces complete the separation after slide unfolding. During this process, the second support 2 continues to move towards the opening 83. When the push button reaches the end of the push button guide groove 81 away from the opening 83, at least half of the second slide 4 has extended out of the opening 83, and the operator can grasp the extended part of the second slide 4 and remove it horizontally in the second direction. Thus, a single continuous movement of the push button from the starting end to the ending end sequentially completes the progressive pressing, fixed-thickness slide unfolding, rebound separation, and delivery of the second slide 4, without the need to switch hands or separate the two slides during the slide unfolding process.

[0034] The above description is illustrative only and not restrictive of the present invention. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of the present invention.

Claims

1. A device for applying a coating to two glass slides at a fixed thickness, characterized in that: include The first support member (1) and the second support member (2) are respectively used to support the first glass slide (3) and the second glass slide (4). The working surfaces of the first glass slide (3) and the second glass slide (4) are arranged opposite to each other. The first support member (1) and the second support member (2) can move relative to each other in a second direction parallel to the working surface. The first glass slide (3) is movably disposed on the first support member (1) and can move relative to the first support member (1) in a first direction that is close to or away from the second glass slide (4). An operating component (5) is connected to the first carrier component (1) and is used to drive the first carrier component (1) to move in the second direction; The spacing adjustment part (6) cooperates with the first glass slide (3) to guide the first glass slide (3) to move along the first direction during the process of the first carrier (1) being driven by the operating member (5) to move along the second direction, so that the first glass slide (3) and the second glass slide (4) are switched from the sample-attaching state of maintaining the sample-attaching spacing to the slide-spreading state of maintaining the slide-spreading spacing. The display piece transmission assembly (7) is connected to the first carrier (1) and the second carrier (2) respectively, and is used to transmit the movement of the first carrier (1) along the second direction to the second carrier (2), so that the first carrier (1) and the second carrier (2) move in opposite directions.

2. The dual-slide thickness coating apparatus according to claim 1, characterized in that: The first support member (1) includes a support frame (11) and an elastic support member (12) disposed on the support frame (11). The first glass slide (3) is movably disposed on the support frame (11) through the elastic support member (12). The elastic support member (12) applies an elastic force to the first glass slide (3) in a first direction away from the second glass slide (4), so that the first glass slide (3) protrudes at least partially from the support frame (11) in the sample mounting state.

3. The dual-slide thickness coating apparatus according to claim 2, characterized in that: The spacing adjustment part (6) has a moving path along the first support member (1) in the second direction, which includes a holding surface (61) and a pressing surface (62) in sequence. When the first carrier (1) moves to the holding surface (61), the first glass slide (3) abuts against the holding surface (61) under the action of the elastic support (12). At this time, the elastic support (12) is in a released state, and the sample connection gap is formed between the first glass slide (3) and the second glass slide (4). When the first support member (1) moves to the pressing surface (62), the first glass slide (3) moves along the first direction and approaches the second support member (2). At this time, the elastic support member (12) is compressed, and the slide spacing is formed between the first glass slide (3) and the second glass slide (4).

4. The dual-slide thickness coating apparatus according to claim 3, characterized in that: The spacing adjustment part (6) also includes a release surface (63) located after the pressing surface (62). When the first carrier (1) moves to the release surface (63), the first glass slide (3) moves along the first direction and moves away from the second glass slide (4) under the rebound action of the elastic support (12).

5. The dual-slide thickness coating apparatus according to claim 4, characterized in that: An inclined pressing surface (64) is provided between the holding surface (61) and the pressing surface (62). The inclined pressing surface (64) is used to gradually apply pressure to the first glass slide (3) so that the first glass slide (3) moves from the sample-attached state protruding from the support frame (11) to the unfolded state. An inclined separation surface (65) is provided between the pressing surface (62) and the releasing surface (63). The inclined separation surface (65) is used to gradually release pressure on the first glass slide (3) so that the first glass slide (3) returns from the unfolded state to the separated state protruding from the supporting frame (11).

6. The dual-slide thickness coating apparatus according to claim 5, characterized in that: The spacing adjustment part (6) includes at least two stepped strips that extend along the second direction and are spaced apart. The retaining surface (61), pressing surface (62), releasing surface (63), inclined pressing surface (64) and inclined separating surface (65) are all formed on the side of the stepped strips near the first glass slide (3). At least two of the stepped strips are disposed on both sides of the first glass slide (3) in the second direction of the moving path.

7. The dual-slide thickness coating apparatus according to claim 1, characterized in that: The display panel transmission assembly (7) includes a rack one (71), a rack two (72), and a transmission gear (73). The rack one (71) is disposed on the first support member (1), the rack two (72) is disposed on the second support member (2), and the transmission gear (73) is disposed between the rack one (71) and the rack two (72) and meshes with both of them respectively, so as to drive the second support member (2) to move in the opposite direction when the first support member (1) moves in the second direction.

8. The dual-slide thickness coating apparatus according to claim 7, characterized in that: The first rack (71) is disposed at the bottom of the first support member (1) and extends to the bottom of the second support member (2). The second rack (72) is disposed at the bottom of the second support member (2). The first rack (71) and the second rack (72) extend along the second direction and are respectively located on opposite sides of the transmission gear (73).

9. The dual-slide thickness coating apparatus according to claim 1, characterized in that: The operating component (5) is a push button fixedly installed on the first support component (1). The double slide thickness coating device also includes a box (8) that accommodates the first support component (1) and the second support component (2). The box (8) is provided with a push button guide groove (81) extending along the second direction. The push button extends out of the box (8) through the push button guide groove (81). One end of the box (8) is provided with an opening (83). The opening (83) is located on the moving path of the second slide (4) along the second direction and is in clearance fit with the second slide (4).

10. The dual-slide thickness coating apparatus according to claim 9, characterized in that: The box body (8) is also provided with a specimen input interface (82) that communicates with the sample receiving area between the first slide (3) and the second slide (4); the box body (8) is provided with two guide strips (9) extending along the second direction, and the second carrier (2) is slidably engaged with the two guide strips (9) respectively; the push button is connected to the first carrier (1) through the connecting part (13) that is slidably engaged with the inner wall of the box body (8).

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