Smear device for clinical laboratory

Abstract

The utility model discloses a smear device for a clinical laboratory, which belongs to the technical field of the clinical laboratory and is characterized in that the smear device comprises a base, the top of the base is in bolted connection with a vacuum adsorption platform, the two sides of the top of the base are in bolted connection with supporting plates, and the top between the opposite sides of the two supporting plates is rotationally connected with a two-way screw rod; and the surface of the bidirectional screw rod is in threaded connection with a screw block, the front side of the screw block is in bolted connection with a moving assembly, and a coating assembly is clamped in the moving assembly. The coating assembly comprises a fixing cylinder, the fixing cylinder is clamped in the moving assembly, the bottom of the interior of the fixing cylinder is slidably connected with an adjusting rod, by arranging the coating assembly, the appropriate pressure of the scraping plate on the glass slide can be accurately set and maintained, it is ensured that the sample can be evenly and stably coated on the glass slide in the smearing process, and the coating efficiency is improved. The smear quality and consistency are improved, subsequent inspection and analysis are facilitated, and therefore the coating problem caused by the fact that a pressing plate is adopted in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory testing, in particular to a smear device for laboratory testing. Background Art

[0002] A smear applicator is a professional tool widely used in the field of medical testing, especially in clinical testing departments. It is mainly used to evenly smear the sample to be tested on a glass slide to prepare a smear that meets the test requirements, which is convenient for subsequent microscopic observation, staining, and various related testing and analysis operations.

[0003] The existing smear is generally performed by the operator using two glass slides, which makes it difficult to control the smearing force, which not only easily leads to uneven smearing, but also easily causes the glass slides to break;

[0004] The existing patent (publication number: CN219870565U) discloses a smear device for laboratory use. By pushing the pressure rod, the pressure plate moves downward to squeeze the slide. The operation is convenient and the thickness of the thin layer after pushing is more uniform. The slide in the base can be extracted through the slide groove, which facilitates the installation and replacement of the slide. Finally, the pressure plate and the connecting plate are adsorbed by the iron plate and the magnetic plate, and the pressure plate can be removed, which is conducive to disassembling the pressure plate for disinfection and cleaning, effectively improving the practicality.

[0005] In view of the above problems, existing patents have provided solutions. However, in actual use, on the one hand, it is difficult to ensure the consistency of pressure through artificial pressure when using a pressure smear, thus affecting the uniformity of the smear. On the other hand, since the blood between the slide and the pressing plate has a certain tension, it is easy for the slide to be adsorbed on the bottom of the pressing plate and rise with the pressing plate, causing the slide to easily fall off midway.

[0006] For this reason, a smear device for laboratory is proposed. Utility Model Content

[0007] The utility model aims to provide a smear device for laboratory use, which can solve the problem that the existing pressure-type smear device is difficult to ensure the consistency of pressure through artificial pressure, thus affecting the uniformity of the smear, and on the other hand, due to the blood between the slide and the pressing plate having a certain tension, it is easy to cause the slide to be adsorbed on the bottom of the pressing plate and rise with the pressing plate, causing the slide to easily fall off midway.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smear device for laboratory, comprising a base, a vacuum adsorption platform is bolted to the top of the base, support plates are bolted to both sides of the top of the base, a bidirectional screw is rotatably connected to the top between the two opposite sides of the two support plates, and a screw block is threadedly connected to the surface of the bidirectional screw, a moving component is bolted to the front side of the screw block, and a coating component is provided inside the moving component;

[0009] The coating assembly includes a fixed cylinder, which is clamped inside the moving assembly. The bottom of the fixed cylinder is slidably connected to an adjusting rod, and the bottom of the adjusting rod is bolted to a fixed frame. The inside of the fixed frame is rotatably connected to a movable shaft, and the surface of the movable shaft is sleeved with a connecting sleeve, and the bottom of the connecting sleeve is bolted to a scraper. An adjusting piece is arranged inside the fixed cylinder, and the adjusting piece is used in conjunction with the adjusting rod.

[0010] Preferably, the adjusting member includes an adjusting bolt, which is threadedly connected to the top of the fixed cylinder, and the bottom of the adjusting bolt is rotatably connected to a pressure plate, a pressure spring is arranged between the pressure plate and the side opposite to the adjusting rod, a supporting spring is sleeved on the surface of the adjusting rod, and a transmission plate is arranged at the bottom of the supporting spring, and the bottom of the transmission plate is in close contact with a pressure sensor.

[0011] Preferably, the moving component includes a fixed shell, which is connected to the screw block, a moving plate is slidably connected to the inside of the fixed shell, a return spring is provided at the bottom of the moving plate, and the bottom of the return spring is connected to the inner wall of the fixed shell, a push rod is bolted to the top of the moving plate, and the top of the push rod extends to the top of the fixed shell.

[0012] Preferably, a connecting plate is bolted to the front side of the movable plate, and the front side of the connecting plate extends to the front side of the fixed shell and is provided with an elastic snap ring, and the inner wall of the elastic snap ring is in close contact with the surface of the fixed cylinder.

[0013] Preferably, an insert block is slidably provided at the top of the right side inside the fixed shell, and the left side of the insert block extends to the inside of the push rod.

[0014] Preferably, a fixed plate is bolted to the front side of the fixed frame, and the front side of the movable shaft passes through the interior of the fixed plate and is bolted to a turntable, a scale is provided on the top of the front side of the fixed plate, an indicator needle is bolted to the top of the turntable, and the indicator needle is used in conjunction with the scale.

[0015] Preferably, a stud is bolted to the top of the front side of the fixed disk, and the front side of the stud extends to the front side of the turntable. A screw sleeve is threadedly connected to the surface of the stud, and the screw sleeve is in close contact with the turntable on one side.

[0016] Preferably, a guide rod is bolted to the bottom between opposite sides of the two support plates, and a sliding block is sleeved on the surface of the guide rod, and the sliding block is connected to the fixed shell.

[0017] Preferably, a return spring is provided on the front side and the rear side of the left side of the insert block, and the return spring is connected to the fixed shell at one side thereof.

[0018] Preferably, a digital display structure is bolted to the right side of the base, and the digital display structure is electrically connected to the pressure sensor.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The present application can accurately set and maintain the appropriate pressure of the scraper on the glass slide by setting a coating component, ensuring that the sample can be evenly and stably coated on the glass slide during the smearing process, thereby improving the smear quality and consistency, facilitating subsequent inspection and analysis, and thus solving the problems of coating caused by using a pressure plate in the prior art;

[0021] 2. By setting up a moving component, the present application can achieve precise positioning and movement of the coating component on the slide, and can evenly apply the sample according to a predetermined trajectory, effectively avoiding the problem of position deviation caused by human operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the overall structure diagram of the smear device for laboratory use of the utility model;

[0023] Figure 2 This is a schematic diagram of the connection between the coating component and the moving component of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the adjusting member of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the movable shaft of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the mobile component of the utility model;

[0027] Figure 6 For this utility model Figure 5 A magnified schematic diagram of center A.

[0028] In the figure, 1, base; 2, vacuum adsorption platform; 3, support plate; 4, bidirectional screw; 5, screw block; 6, moving assembly; 61, fixed shell; 62, moving plate; 63, reset spring; 64, push rod; 65, connecting plate; 66, elastic snap ring; 67, plug block; 7, coating assembly; 71, fixed cylinder; 72, adjusting rod; 73, fixed frame; 74, movable shaft; 75, connecting sleeve; 76, scraper; 77, adjusting piece; 771, adjusting bolt; 772, pressure plate; 773, pressure spring; 774, support spring; 775, transmission plate; 776, pressure sensor; 8, fixed plate; 9, turntable; 10, stud; 11, screw sleeve; 12, guide rod; 13, slider; 14, reset spring; 15, digital display structure. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6 , the utility model provides a technical solution:

[0031] A smear device for laboratory testing comprises a base 1, a vacuum adsorption platform 2 is bolted to the top of the base 1, support plates 3 are bolted to both sides of the top of the base 1, a bidirectional screw 4 is rotatably connected to the top between the two opposite sides of the two support plates 3, and a screw block 5 is threadedly connected to the surface of the bidirectional screw 4, a moving component 6 is bolted to the front side of the screw block 5, and a coating component 7 is provided inside the moving component 6;

[0032] The coating component 7 includes a fixed cylinder 71, which is clamped inside the movable component 6. The bottom of the fixed cylinder 71 is slidably connected to an adjusting rod 72, and the bottom of the adjusting rod 72 is bolted to a fixed frame 73. The fixed frame 73 is rotatably connected to a movable shaft 74, and the surface of the movable shaft 74 is sleeved with a connecting sleeve 75, and the bottom of the connecting sleeve 75 is bolted to a scraper 76. An adjusting member 77 is provided inside the fixed cylinder 71, and the adjusting member 77 is used in conjunction with the adjusting rod 72.

[0033] Specifically, Figure 3As shown, the adjusting member 77 includes an adjusting bolt 771, which is threadedly connected to the top of the fixed cylinder 71, and the bottom of the adjusting bolt 771 is rotatably connected to a pressure plate 772, a pressure spring 773 is arranged between the pressure plate 772 and the side opposite to the adjusting rod 72, a supporting spring 774 is sleeved on the surface of the adjusting rod 72, and a transmission plate 775 is arranged at the bottom of the supporting spring 774, and the bottom of the transmission plate 775 is in close contact with a pressure sensor 776.

[0034] In this embodiment: by setting up the coating component 7, before coating the sample, the scraper 76 can be lowered by the moving component 6 to make it contact with the glass slide, and then pressure is applied to the pressure plate 772 by adjusting the bolt 771, and the pressure spring 773 is compressed. The pressure sensor 776 can be adjusted according to different smear requirements by the pressure spring 773 between the pressure plate 772 and the adjusting rod 72 and the supporting spring 774 on the surface of the adjusting rod 72. Therefore, the pressure of the scraper 76 on the glass slide can be adjusted, so as to facilitate the adjustment of the appropriate coating pressure according to different samples, and the movable shaft 74 drives the rotation of the connecting sleeve 75 to adjust the coating angle of the scraper 76, so that the sample can be coated on the glass slide evenly and stably, thereby improving the smear quality and consistency.

[0035] Specifically, Figure 5 As shown, the moving assembly 6 includes a fixed shell 61, which is connected to the screw block 5, and a moving plate 62 is slidably connected inside the fixed shell 61, and a return spring 63 is provided at the bottom of the moving plate 62, and the bottom of the return spring 63 is connected to the inner wall of the fixed shell 61, and a push rod 64 is bolted to the top of the moving plate 62, and the top of the push rod 64 extends to the top of the fixed shell 61.

[0036] Specifically, Figure 5 As shown, a connecting plate 65 is bolted to the front side of the movable plate 62 , and the front side of the connecting plate 65 extends to the front side of the fixed shell 61 and is provided with an elastic snap ring 66 , and the inner wall of the elastic snap ring 66 is in close contact with the surface of the fixed cylinder 71 .

[0037] Specifically, Figure 5 As shown, an insert block 67 is slidably disposed at the top of the right side inside the fixed shell 61 , and the left side of the insert block 67 extends to the inside of the push rod 64 .

[0038] In this embodiment: through the moving component 6, it can be moved out from the preset socket at the bottom of the push rod 64 through the plug block 67, and the limit on the push rod 64 is released. Then, the push rod 64 moves downward in the fixed shell 61 and overcomes the elasticity of the reset spring 63, so that the moving plate 62 can synchronously drive the connecting plate 65 and the elastic clamp 66 to drive the coating component 7 to move downward. When the coating component 7 contacts the glass slide, it can enter the preset socket at the top of the push rod 64 through the plug block 67, and the position of the push rod 64 and the coating component 7 can be fixed, so that the coating component 7 can be accurately positioned and moved on the glass slide, and the sample can be evenly smeared according to the predetermined trajectory.

[0039] Specifically, Figure 4 As shown, a fixed plate 8 is bolted to the front side of the fixed frame 73, and a turntable 9 is bolted to the front side of the movable shaft 74 through the interior of the fixed plate 8, a scale is provided on the top of the front side of the fixed plate 8, an indicator needle is bolted to the top of the turntable 9, and the indicator needle is used in conjunction with the scale.

[0040] Specifically, Figure 4 As shown, a stud 10 is bolted to the top of the front side of the fixing plate 8, and the front side of the stud 10 extends to the front side of the rotating plate 9. A screw sleeve 11 is threadedly connected to the surface of the stud 10, and the screw sleeve 11 is in close contact with the rotating plate 9 on one side thereof.

[0041] In this embodiment: through the fixed disk 8 and the turntable 9, when the movable shaft 74 drives the turntable 9 to rotate, it will also drive the indicator needle to rotate synchronously. The angle of the scraper 76 can be accurately adjusted by the coordinated use of the indicator needle and the scale. After the adjustment is completed, the screw sleeve 11 squeezes the turntable 9 through the threaded cooperation of the stud 10 and the screw sleeve 11, thereby fixing the position of the turntable 9 and the movable shaft 74.

[0042] Specifically, Figure 2 As shown, a guide rod 12 is bolted to the bottom between the two opposite sides of the two support plates 3 , and a sliding block 13 is sleeved on the surface of the guide rod 12 , and the sliding block 13 is connected to the fixed shell 61 .

[0043] Specifically, Figure 6 As shown, the front and rear sides of the left side of the insert block 67 are both provided with a return spring 14 , and the return spring 14 is connected to the fixed shell 61 at one side thereof.

[0044] In this embodiment: by providing the guide rod 12 and the slider 13, the moving trajectory of the fixed shell 61 can be limited to make it move smoothly, and by providing the reset spring 14, the tension of the reset spring 14 can be used to ensure the firmness of the connection between the plug block 67 and the push rod 64.

[0045] Specifically, Figure 1As shown, a digital display structure 15 is bolted to the right side of the base 1 , and the digital display structure 15 is electrically connected to the pressure sensor 776 .

[0046] In this embodiment: by setting an electrical connection between the digital display structure 15 and the pressure sensor 776, the pressure can be sensed in real time, and the data can be transmitted to the digital display structure 15 for display. The operator can accurately adjust the pressure of the scraper 76 according to the displayed data.

[0047] Working principle: before coating the sample, first move it out of the preset socket at the bottom of the push rod 64 through the plug block 67 to release the limit on the push rod 64, then move the push rod 64 downward in the fixed shell 61 and overcome the elasticity of the reset spring 63, so that the movable plate 62 synchronously drives the coating component 7 downward through the connecting plate 65 and the elastic clamp 66. When the coating component 7 contacts the glass slide, it can enter the preset socket at the top of the push rod 64 through the plug block 67, and the position of the push rod 64 and the coating component 7 can be fixed. Then adjust the use angle of the scraper 76, and then use the adjusting bolt 771 to thread the top of the fixed cylinder 71. Turning the adjusting bolt 771 can move the pressure plate 772 up and down, and the pressure between the pressure plate 772 and the adjusting rod 72 The spring 773 and the support spring 774 on the surface of the adjustment rod 72 work together to adjust the pressure on the pressure sensor 776 according to different smear requirements, and the pressure sensor 776 can sense the pressure in real time and transmit the data to the digital display structure 15 for display. The operator can accurately adjust the pressure applied by the scraper 76 on the slide according to the displayed data. When the adjustment is completed, the moving component 6 is reset, the sample is pipetted onto the slide, and the slide is fixed by the vacuum adsorption platform 2. Then the operating steps of the moving component 6 are repeated to make the scraper 76 contact with the slide. Finally, the bidirectional screw 4 is driven to rotate by an external drive device, so that the screw block 5 synchronously drives the moving component 6 and the coating component 7 to perform a smear operation on the sample.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A smear device for laboratory use, comprising a base (1), characterized in that: The top of the base (1) is bolted to a vacuum adsorption platform (2), and both sides of the top of the base (1) are bolted to support plates (3), the top between the two support plates (3) is rotatably connected to a bidirectional screw (4), and the surface of the bidirectional screw (4) is threadedly connected to a screw block (5), the front side of the screw block (5) is bolted to a moving component (6), and the interior of the moving component (6) is provided with a coating component (7); The coating assembly (7) comprises a fixed cylinder (71), wherein the fixed cylinder (71) is clamped inside the movable assembly (6), an adjusting rod (72) is slidably connected to the bottom of the fixed cylinder (71), and a fixing frame (73) is bolted to the bottom of the adjusting rod (72), a movable shaft (74) is rotatably connected to the inside of the fixing frame (73), and a connecting sleeve (75) is sleeved on the surface of the movable shaft (74), and a scraper (76) is bolted to the bottom of the connecting sleeve (75), and an adjusting member (77) is provided inside the fixed cylinder (71), and the adjusting member (77) is used in conjunction with the adjusting rod (72).

2. A smear device for laboratory use according to claim 1, characterized in that: The adjusting member (77) comprises an adjusting bolt (771), wherein the adjusting bolt (771) is threadedly connected to the top of the interior of the fixing tube (71), and the bottom of the adjusting bolt (771) is rotatably connected to a pressure plate (772), a pressure spring (773) is arranged between the pressure plate (772) and the side opposite to the adjusting rod (72), a support spring (774) is sleeved on the surface of the adjusting rod (72), and a transmission plate (775) is arranged at the bottom of the support spring (774), and the bottom of the transmission plate (775) is in close contact with a pressure sensor (776).

3. A smear device for laboratory use according to claim 1, characterized in that: The moving assembly (6) comprises a fixed shell (61), the fixed shell (61) is connected to the screw block (5), a moving plate (62) is slidably connected inside the fixed shell (61), a return spring (63) is provided at the bottom of the moving plate (62), and the bottom of the return spring (63) is connected to the inner wall of the fixed shell (61), a push rod (64) is bolted to the top of the moving plate (62), and the top of the push rod (64) extends to the top of the fixed shell (61).

4. A smear device for laboratory use according to claim 3, characterized in that: The front side of the movable plate (62) is bolted with a connecting plate (65), and the front side of the connecting plate (65) extends to the front side of the fixed shell (61) and is provided with an elastic snap ring (66), and the inner wall of the elastic snap ring (66) is in close contact with the surface of the fixed cylinder (71).

5. The smear device for laboratory use according to claim 3, characterized in that: An insert block (67) is slidably disposed at the top of the right side of the interior of the fixed shell (61), and the left side of the insert block (67) extends to the interior of the push rod (64).

6. A smear device for laboratory use according to claim 1, characterized in that: A fixed disk (8) is bolted to the front side of the fixed frame (73), and a rotating disk (9) is bolted to the front side of the movable shaft (74), which passes through the interior of the fixed disk (8) and is bolted to the front side of the movable shaft (74). A scale is provided on the top of the front side of the fixed disk (8), and an indicator needle is bolted to the top of the rotating disk (9), and the indicator needle is used in conjunction with the scale.

7. A smear device for laboratory use according to claim 6, characterized in that: A stud (10) is bolted to the top of the front side of the fixed disk (8), and the front side of the stud (10) extends to the front side of the rotating disk (9). A screw sleeve (11) is threadedly connected to the surface of the stud (10), and the screw sleeve (11) is in close contact with the rotating disk (9) on one side thereof.

8. The smear device for laboratory use according to claim 3, characterized in that: A guide rod (12) is bolted to the bottom between opposite sides of the two support plates (3), and a sliding block (13) is sleeved on the surface of the guide rod (12), wherein the sliding block (13) is connected to the fixed shell (61).

9. A smear device for laboratory use according to claim 5, characterized in that: A return tension spring (14) is provided on the front side and the rear side of the left side of the insert block (67), and the return tension spring (14) is connected to the fixed shell (61) at a side close to the fixed shell (61).

10. The smear device for laboratory use according to claim 1, characterized in that: A digital display structure (15) is bolted to the right side of the base (1), and the digital display structure (15) is electrically connected to the pressure sensor (776).

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