Laboratory-based blood smear device

Abstract

The utility model discloses a blood smear device based on clinical laboratory belongs to medical instrument technical field. This kind of blood smear device based on clinical laboratory, including support platform, placing subassembly and smear subassembly, placing subassembly includes a pair of placing table, and the recess is set up on a pair of placing table, and the semicircular groove is set up in the inside of a pair of placing table one end, and the smear subassembly includes the fixed base, and the both ends rotation is connected with the pivot of fixed base, and the both ends of two pivots are installed with the connecting frame, and the outside of two pivots is all installed with the mounting sleeve, and the pointer is installed on the outside of mounting sleeve far from the connecting frame one end, and the both ends outer wall of fixed base is equipped with angle scale line, and the inside of fixed base is installed with double -shaft motor, and the transmission is connected between the two output of double -shaft motor and two pivots respectively, the utility model discloses can make two blood smears simultaneously, and according to the angle of adjusting the push piece of blood sample's dilute concentration, has higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a blood smear device for laboratory departments. Background Technology

[0002] A blood smear is a slide specimen prepared by evenly spreading a blood sample onto a glass slide. It is a commonly used clinical examination method. Its main purpose is to observe the morphology, number, and distribution of blood cells under a microscope to aid in the diagnosis of diseases. For example, observing the morphology of red blood cells can help determine the presence of anemia or hemolytic diseases; analyzing the types and numbers of white blood cells can help diagnose leukemia; and examining the number and morphology of platelets can assess whether hemostatic function is abnormal. During the examination, the doctor will collect a small amount of blood, such as from a fingertip, which is then smeared, stained, and observed under a microscope. This is an important means of preliminary screening for blood diseases.

[0003] For example, Chinese Patent CN221038282U discloses a blood smear device for laboratory use, including a support platform and a U-shaped support plate. The top surface of the support platform has a slot for fixing a glass slide. The U-shaped support plate has its opening facing downwards, and its front and rear ends are slidably connected to the support platform. An inclined support plate is fixed to the rear inner wall of the support platform, and a locking mechanism is provided at the top of the support platform for fixing a glass slide to the inclined support plate. This blood smear device can clamp and fix a glass slide on the support platform, fix a glass slide to the U-shaped support plate, and move the smear by pushing the U-shaped support plate on the support platform. This solves the problem of shaking or wobbling that easily occurs when holding a glass slide or pushing a glass slide, ensuring the uniformity of the blood film thickness formed on the glass slide.

[0004] The technical solution described in this paper is not convenient for producing two blood smears at the same time during actual use, and it is also not convenient for adjusting the angle of the slide according to the concentration of the blood sample, thus reducing the practicality of the blood smear device. Utility Model Content

[0005] The purpose of this invention is to provide a blood smear device for laboratory use, in order to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A blood smear device for a laboratory includes a support platform, a placement assembly, and a smear assembly. The placement assembly includes a pair of placement platforms, which are respectively installed on both sides of the top surface of the support platform. Each pair of placement platforms has a groove, and each pair of placement platforms has a semi-circular groove inside one end. The smear assembly includes a fixing base, with rotating shafts rotatably connected to both ends of the fixing base. A connecting frame is installed at the opposite ends of the two rotating shafts, and a mounting sleeve is fitted onto the outside of each of the two rotating shafts. A pointer is installed on the outside of the mounting sleeve at the end away from the connecting frame. An angle scale is provided on the outer walls of both ends of the fixing base. A dual-axis motor is installed inside the fixing base, and the two output ends of the dual-axis motor are respectively connected to the two rotating shafts for transmission.

[0008] Furthermore, one end of the pointer points to the zero-degree position of the angle scale line, and each mark on the angle scale line is spaced 15 degrees apart. The two output ends of the dual-axis motor rotate in the same direction and at the same speed. The beneficial effects of this further solution are: since one end of the pointer points to the zero-degree position of the angle scale line, the zero-degree position is the initial position before angle adjustment. When the pointer moves from the zero-degree position to the scale line it aligns with after rotation, the scale line is the endpoint position. Medical personnel can quickly determine the starting state through the pointer, avoiding operational errors caused by unclear initial angles. Since each mark on the angle scale line is spaced 15 degrees apart, different angles during blood smear operations affect the thickness and uniformity of the smear. Medical personnel can adjust the angle of the smear assembly according to the specific smear requirements and the 15-degree scale intervals, adjusting the connecting frame and its internal components according to the actual blood smear needs. The angle between the slide and the glass slide should be between 30 and 45 degrees. When the blood is thinner, the angle between the slide and the glass slide can be slightly smaller, between 30 and 35 degrees, to avoid the smear being too thin. When the blood is thicker, the angle between the slide and the glass slide can be slightly larger, between 40 and 45 degrees, to ensure uniform cell distribution. A suitable angle allows the smear to form an area of ​​appropriate thickness and a monolayer distribution of cells, which is convenient for microscopic observation. Since the two output ends of the biaxial motor rotate in the same direction and at the same speed, when the biaxial motor is working, the two connecting frames are adjusted simultaneously and in the same direction. This avoids the two connecting frames tilting or uneven force due to inconsistent rotation of the two shafts, thus ensuring that the smear operation can be carried out smoothly and improving the quality and success rate of the smear.

[0009] Furthermore, the coating assembly also includes an electrically operated telescopic rod, the movable end of which is fixedly connected to the bottom end of the fixed base.

[0010] The beneficial effect of adopting the above-mentioned further solution is that, by setting up the electric telescopic rod, the height of the two connecting frames can be flexibly adjusted according to actual needs. When performing blood smear operations, the height of the connecting frames may need to be adjusted according to different smear sample requirements. When the electric telescopic rod is working, its movable end drives the fixed seat to rise or fall, adjusting the height of the fixed seat, and thus adjusting the position of the slide pusher.

[0011] Furthermore, an installation groove is provided at the center of the top surface of the support platform. An electric slide rail is installed inside the installation groove. Both ends of the electric slide rail are fixedly connected to the inner wall of the installation groove. An electric slider is slidably connected to the outside of the electric slide rail. The upper end of the electric slider is fixedly connected to the fixed end of the electric telescopic rod.

[0012] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of electric slide rail and electric slider, after the height of the two connecting frames is adjusted, one end of the pusher in the connecting frame abuts against the glass slide, and after the angle of the connecting frame is adjusted, a blood line is generated at the end of the pusher that abuts against the glass slide. When the electric slide rail and electric slider are working, the electric slide rail drives the electric slider to work, so that the pusher moves on the glass slide towards the end of the glass slide away from the semi-circular groove, thereby completing the blood smear operation.

[0013] Furthermore, mounting boxes are installed on both sides of the outer wall of the connecting frame, and negative pressure pipes are installed inside the mounting boxes. Several first connecting pipes are connected to the negative pressure pipes. Several connecting ports pass through the mounting boxes and the connecting frame at the end away from the negative pressure pipes, and suction cups are connected to the end of several connecting ports away from the negative pressure pipes.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the pusher is fixed by suction cups. Multiple suction cups are distributed on the connecting frame, which can apply adsorption force to the pusher from multiple points, ensuring that the pusher is fixed more firmly and stably on the connecting frame. During the coating operation, the pusher will not be displaced or loosened due to external force, thereby ensuring the accuracy and stability of the coating operation.

[0015] Furthermore, the negative pressure tube is connected to a second connecting tube on the side away from the suction cup, and the mounting box is equipped with a pump base on the side away from the connecting frame. A miniature vacuum pump is installed inside the pump base, and the air inlet of the miniature vacuum pump passes through the mounting box and is connected to the second connecting tube.

[0016] The beneficial effect of adopting the above-mentioned further solution is that by setting up a micro vacuum pump, a stable negative pressure source is provided for the suction cup. Utilizing the principle of negative pressure adsorption, the micro vacuum pump draws air to create a negative pressure between the suction cup and the pusher, thereby achieving the adsorption and fixation of the pusher. When it is necessary to replace the pusher or perform other operations, the micro vacuum pump is turned off to control the cessation of negative pressure and release the adsorption of the pusher.

[0017] Furthermore, the size of the connecting frame is smaller than the size of the pusher, a cavity is formed at the center of the connecting frame, the thickness of the cavity is greater than the thickness of the pusher, and the distance between the suction cups on both sides of the inner wall of the cavity is the same as the thickness of the pusher.

[0018] The beneficial effects of adopting the above-mentioned further solution are that, since the size of the connecting frame is smaller than the size of the pusher, after the pusher is fixed inside the connecting frame, part of the pusher is located outside the connecting frame; since the distance between the suction cups on both sides of the cavity inner wall is the same as the thickness of the pusher, when the pusher is placed between the suction cups on both sides inside the connecting frame, the suction cups can fit tightly against the two sides of the pusher, thereby producing a good adsorption effect, further enhancing the fixed stability of the pusher on the connecting frame, and preventing the pusher from shaking or shifting during operation.

[0019] Furthermore, the size of the groove is consistent with the size of the glass slide.

[0020] The beneficial effect of adopting the above-mentioned further solution is that, since the groove size is consistent with the slide size, the groove provides a precisely fitting placement space for the slide. When placing the slide, the slide can be embedded in the groove without shaking or shifting, thus avoiding quality problems in the blood smear due to slide movement.

[0021] Compared with existing technologies, the beneficial effects of this utility model are as follows: This blood smear device for laboratory use has two placement stages, each with a groove to facilitate the placement of two glass slides into the grooves of the two stages. After two pushers are fixed inside two connecting frames, medical staff use a syringe to drip blood samples onto the glass slides. When the blood samples on both slides are either too thick or too thin, the height of the pushers is adjusted by an electric telescopic rod so that one end abuts against the glass slide. When the dual-axis motor is working, the two connecting frames are simultaneously and synchronously adjusted in the same direction. During the blood smear operation, different angles will affect the thickness of the smear. The device achieves effects such as uniformity and evenness. Medical staff can adjust the angle of the smear assembly according to the specific smear requirements and the 15-degree scale intervals. The angle range of the connecting frame and its interior is between 30 and 45 degrees according to the actual blood smear needs. After the angle of the connecting frame is adjusted, a blood line is generated at the end where the pusher contacts the glass slide. When the electric slide rail and electric slider are working, the electric slide rail drives the electric slider to work, so that the pusher moves on the glass slide towards the end of the glass slide away from the semi-circular groove, thereby completing the blood smear operation. This utility model can produce two blood smears at the same time and adjust the angle of the pusher according to the concentration of the blood sample, which has high practical value. Attached Figure Description

[0022] Figure 1 A three-dimensional structural schematic diagram of the blood smear device based on the laboratory department provided by this utility model;

[0023] Figure 2 A three-dimensional structural diagram of the support platform and placement components of the blood smear device based on the laboratory department provided by this utility model;

[0024] Figure 3 A three-dimensional structural schematic diagram of the image component of the blood smear device based on the laboratory department provided by this utility model;

[0025] Figure 4 A front cross-sectional three-dimensional structural diagram of the fixing seat of the blood smear device based on the laboratory department provided by this utility model;

[0026] Figure 5 A top cross-sectional view of the connecting frame of the blood smear device based on the laboratory provided by this utility model.

[0027] In the diagram: 1. Support platform; 2. Placement component; 21. Placement platform; 22. Groove; 23. Semicircular groove; 3. Coating assembly; 31. Electric slide rail; 32. Electric slider; 33. Electric telescopic rod; 34. Fixing base; 35. Rotating shaft; 36. Mounting sleeve; 37. Pointer; 38. Dual-axis motor; 39. Connecting frame; 310. Mounting box; 311. Negative pressure tube; 312. Suction cup; 313. Miniature vacuum pump. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 This utility model provides a technical solution: a blood smear device for a laboratory, comprising a support platform 1, a placement component 2, and a smear component 3. The placement component 2 includes a pair of placement platforms 21, which are respectively installed on both sides of the top surface of the support platform 1. Each pair of placement platforms 21 has a groove 22, and a semi-circular groove 23 is formed inside one end of each pair of placement platforms 21. The smear component 3 includes a fixing seat 34, with rotating shafts 35 rotatably connected to both ends of the fixing seat 34. A connecting bracket 39 is installed at the opposite ends of the two rotating shafts 35, and an installation sleeve 36 is fitted onto the outside of each of the two rotating shafts 35. The mounting sleeve 36 has a pointer 37 mounted on its outer side at the end furthest from the connecting bracket 39. Angle scale lines are provided on the outer walls of both ends of the fixing base 34. A dual-axis motor 38 is installed inside the fixing base 34. The two output ends of the dual-axis motor 38 are respectively connected to two rotating shafts 35. One end of the pointer 37 points to the zero-degree position of the angle scale line. Each graduation on the angle scale line is spaced 15 degrees apart. The two output ends of the dual-axis motor 38 rotate in the same direction and have the same speed. Two placement stages 21 are used, each with a groove 22, to facilitate the placement of the two glass slides. After placing the two pushers in the grooves 22 of the two placement platforms 21 and fixing them inside the two connecting frames 39 respectively, the medical staff then uses a syringe to drip blood samples onto the glass slide. When one end of the pusher abuts against the glass slide, the dual-axis motor 38 operates, causing the two connecting frames 39 to simultaneously and synchronously adjust their angles in the same direction. During blood smear operations, different angles will affect the thickness and uniformity of the smear. The medical staff can adjust the angle of the smear assembly 3 according to the specific smear requirements and the 15-degree scale intervals, adjusting the connecting frames 39 and their angles according to the actual blood smear needs. The internal angle range is between 30 and 45 degrees. When the blood is thinner, the angle between the slide and the glass slide can be slightly smaller, between 30 and 35 degrees, to avoid the smear being too thin. When the blood is thicker, the angle between the slide and the glass slide can be slightly larger, between 40 and 45 degrees, to ensure uniform cell distribution. When the pointer 37 moves from the zero position to the graduated line after rotation, the graduated line is the end position. Medical staff can quickly determine the starting state through the pointer 37. After the angle of the connecting frame 39 is adjusted, a blood line is generated at the end where the slide and the glass slide are in contact.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5 The present invention provides the following technical solution: the coating assembly 3 further includes an electric telescopic rod 33, the movable end of which is fixedly connected to the bottom end of the fixed base 34. A mounting groove is provided at the center of the top surface of the support platform 1. An electric slide rail 31 is installed inside the mounting groove. Both ends of the electric slide rail 31 are fixedly connected to the inner wall of the mounting groove. An electric slider 32 is slidably connected to the outside of the electric slide rail 31. The upper end of the electric slider 32 is fixedly connected to the fixed end of the electric telescopic rod 33. When the electric telescopic rod 33 is working, its movable end drives the fixed base 34 to rise or... The height of the fixed base 34 is adjusted by lowering the slide and adjusting its position. With the cooperation of the electric slide rail 31 and the electric slider 32, after the height of the two connecting frames 39 is adjusted, one end of the slide in the connecting frame 39 abuts against the glass slide. After the angle of the connecting frame 39 is adjusted, a blood line is generated at the end of the slide that abuts against the glass slide. When the electric slide rail 31 and the electric slider 32 are working, the electric slide rail 31 drives the electric slider 32 to work, so that the slide moves on the glass slide towards the end of the glass slide away from the semi-circular groove 23, thereby completing the blood smear operation.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-5The present invention provides the following technical solution: Mounting boxes 310 are installed on both sides of the outer wall of the connecting frame 39. Negative pressure pipes 311 are installed inside each mounting box 310. Several first connecting pipes are connected to the negative pressure pipes 311. Several connecting ports at the ends away from the negative pressure pipes 311 pass through the mounting box 310 and the connecting frame 39. Suction cups 312 are connected to the ends of the several connecting ports at the ends away from the negative pressure pipes 311. Second connecting pipes are connected to the side of the negative pressure pipes 311 away from the suction cups 312. A pump base is installed on the side of the mounting box 310 away from the connecting frame 39. A miniature vacuum pump 313 is installed inside the pump base. The air inlet of the miniature vacuum pump 313 passes through the mounting box 310 and is connected to the second connecting pipe. The size of the connecting frame 39 is smaller than the size of the push plate. A cavity is formed at the center of the connecting frame 39. The thickness of the cavity... The thickness of the slide is greater than that of the pusher. The distance between the suction cups 312 on both sides of the inner wall of the cavity is the same as the thickness of the pusher. The size of the groove 22 is the same as the size of the glass slide. Since the size of the connecting frame 39 is smaller than that of the pusher, when the pusher is fixed inside the connecting frame 39, part of the pusher is located outside the connecting frame 39. Since the distance between the suction cups 312 on both sides of the inner wall of the cavity is the same as the thickness of the pusher, when the pusher is placed between the suction cups 312 on both sides inside the connecting frame 39, the suction cups 312 can fit tightly against the two sides of the pusher. Using the principle of negative pressure adsorption, the micro vacuum pump 313 is started to draw air, so that a negative pressure is formed between the suction cups 312 and the pusher, thereby achieving the adsorption and fixation of the pusher. When it is necessary to replace the pusher or perform other operations, the micro vacuum pump 313 is turned off to control the stop of the negative pressure and release the adsorption of the pusher.

[0034] Specifically, the working principle of this blood smear device for laboratory use is as follows: Two glass slides are placed in the grooves 22 of the two placement stages 21, respectively. The pusher slide is placed between the suction cups 312 on both sides inside the connecting frame 39. The suction cups 312 can tightly adhere to the two sides of the pusher slide. Utilizing the principle of negative pressure adsorption, air is drawn out by activating the micro vacuum pump 313, creating a negative pressure between the suction cups 312 and the pusher slide, thereby achieving adsorption and fixation of the pusher slide. After the pusher slide is fixed inside the connecting frame 39, a portion of the pusher slide is located outside the connecting frame 39. By activating the electric telescopic rod 33, its movable end drives the fixing seat 34 to descend. Adjusting the height of the fixing seat 34 adjusts the position of the pusher slide, so that one end of the pusher slide inside the connecting frame 39 abuts against the glass slide. Then, medical personnel use a syringe to drip blood samples onto the glass slide. Depending on the actual blood smear requirements, the angle of the connecting frame 39 and its interior is between 30 and 45 degrees. During blood smear operations, different angles will affect the thickness and uniformity of the smear. When the blood is thinner, the angle between the slide and the glass slide can be slightly smaller, between 30 and 35 degrees, to avoid the smear being too thin. When the blood is thicker, the angle between the slide and the glass slide can be slightly larger, between 40 and 45 degrees, to ensure uniform cell distribution. When one end of the slide abuts against the glass slide, the dual-axis motor 38 operates, causing the two connecting frames 39 to simultaneously and synchronously adjust their angles in the same direction. Medical personnel can adjust the angle of the smear assembly 3 according to the specific smear requirements and the 15-degree scale intervals. After adjusting the angle... When pointer 37 moves from the zero position to the graduated line it aligns with after rotation, the graduated line is the end position. Medical staff can quickly determine the starting state and turn off the dual-axis motor 38 through pointer 37. After the angle of the connecting frame 39 is adjusted, a blood line is generated at the end of the slide that is in contact with the glass slide. When the electric slide rail 31 and the electric slider 32 are working, the electric slide rail 31 drives the electric slider 32 to work, so that the slide moves on the glass slide towards the end of the glass slide away from the semi-circular groove 23, thereby completing the blood smear operation.

[0035] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.

Claims

1. A blood smear device based on a laboratory, characterized in that, The device includes a support platform (1), a placement assembly (2), and a coating assembly (3). The placement assembly (2) includes a pair of placement platforms (21), which are respectively installed on both sides of the top surface of the support platform (1). Each pair of placement platforms (21) has a groove (22) and a semi-circular groove (23) inside one end of each pair of placement platforms (21). The coating assembly (3) includes a fixing seat (34), and the two ends of the fixing seat (34) are rotatably connected to a rotating shaft (35). Each of the two rotating shafts (35) has a connecting bracket (39) installed at one of their opposite ends. Each of the two rotating shafts (35) is fitted with a mounting sleeve (36). A pointer (37) is installed on the outside of the mounting sleeve (36) at the end away from the connecting bracket (39). Angle scale lines are provided on the outer walls of both ends of the fixed base (34). A dual-axis motor (38) is installed inside the fixed base (34). The two output ends of the dual-axis motor (38) are respectively connected to the two rotating shafts (35) for transmission. Wherein: both sides of the outer wall of the connecting frame (39) are equipped with mounting boxes (310), and negative pressure pipes (311) are installed inside the mounting boxes (310). Several first connecting pipes are connected to the negative pressure pipes (311), and several connecting ports pass through the mounting boxes (310) and the connecting frame (39) at the end away from the negative pressure pipes (311). Several connecting ports are connected to suction cups (312) at the end away from the negative pressure pipes (311). The negative pressure pipe (311) is connected to a second connecting pipe on the side away from the suction cup (312). The mounting box (310) is equipped with a pump base on the side away from the connecting frame (39). A miniature vacuum pump (313) is installed inside the pump base. The air inlet of the miniature vacuum pump (313) passes through the mounting box (310) and is connected to the second connecting pipe. The size of the connecting frame (39) is smaller than the size of the push plate. A cavity is provided at the center of the connecting frame (39). The thickness of the cavity is greater than the thickness of the push plate. The distance between the suction cups (312) on both sides of the inner wall of the cavity is the same as the thickness of the push plate.

2. The blood smear device based on a clinical laboratory according to claim 1, characterized in that, One end of the pointer (37) points to the zero-degree position of the angle scale line. Each scale line is spaced 15 degrees apart. The two output ends of the dual-axis motor (38) have the same direction of rotation and the same speed.

3. The blood smear device based on a clinical laboratory according to claim 1, characterized in that, The coating assembly (3) also includes an electric telescopic rod (33), the movable end of which is fixedly connected to the bottom end of the fixed base (34).

4. The blood smear device based on a clinical laboratory according to claim 1, characterized in that, An installation groove is provided at the center of the top surface of the support platform (1). An electric slide rail (31) is installed inside the installation groove. Both ends of the electric slide rail (31) are fixedly connected to the inner wall of the installation groove. An electric slider (32) is slidably connected to the outside of the electric slide rail (31). The upper end of the electric slider (32) is fixedly connected to the fixed end of the electric telescopic rod (33).

5. The blood smear device based on a clinical laboratory according to claim 1, characterized in that, The dimensions of the groove (22) are the same as the dimensions of the glass slide.

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