A blood detection smear making device
By designing a blood smear preparation device, the automated preparation and information labeling of smears were realized, solving the problems of inconvenience and low efficiency in the preparation of smears in the existing technology, and improving the quality and efficiency of smears.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, the preparation of smears is inconvenient, inefficient and prone to errors. When multiple smears need to be prepared for different examination items, the workload of medical staff is large and the labeling information on the smears is cumbersome and easy to confuse.
A blood smear preparation device was designed, including a sliding frame, a sliding plate, and a smear preparation mechanism. Through the cooperation of the sliding plate and the smear preparation mechanism, the automatic preparation of multiple test slides is realized, and patient information is marked on the sliding plate to ensure the fixation of the smear angle and the accurate preparation of multiple smears.
It improves the quality and efficiency of smear preparation, reduces the workload of medical staff, avoids smear contamination and information confusion, and ensures the uniformity and consistency of smears.
Smart Images
Figure CN224399081U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to a blood smear preparation device. Background Technology
[0002] Smear preparation is an essential part of clinical medical testing and a crucial foundation for diagnostic work. Bone marrow aspiration smears are one of the gold standards for diagnosing hematopoietic system diseases, such as leukemia, myeloma, and myelofibrosis. By analyzing the blood cells on the smear and calculating the proportions of different cell lines (such as granulocytes, erythrocytes, and lymphocytes) in the bone marrow, abnormal cells can be identified (e.g., an increase in blast cells suggests leukemia), assisting pathologists in quickly assessing the condition. Currently, in clinical practice, medical staff mostly use pipettes to collect samples and place them on a glass slide, then manually spread the sample using a clean slide. This method is prone to errors due to varying levels of experience, resulting in low efficiency. Furthermore, different tests require different numbers of smears; a single patient may require multiple smears. Each smear must be labeled with patient information, specimen type, and collection time, further increasing the workload for medical staff. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a blood smear preparation device that is simple to operate and can improve the quality of smear preparation.
[0004] The present invention adopts the following technical solution:
[0005] A blood smear preparation device includes a sliding frame, a sliding plate, and a smear-pushing mechanism. The sliding frame is slidably connected to the sliding plate and includes a positioning groove on its top surface for mounting a sampling slide and a sliding groove on its top surface for the sliding plate to move back and forth. The sliding plate is detachably disposed in the sliding groove and includes multiple mounting grooves extending inward from one side of its top surface for mounting multiple test slides. The multiple mounting grooves are spaced apart along the length of the sliding plate. The smear-pushing mechanism is disposed on the sliding frame and can be sequentially positioned opposite the multiple mounting grooves. It includes a smear and a clamping block movably disposed on the sliding frame for holding the smear. The clamping block can drive the smear towards the sliding plate. The smear and the clamping block are detachably connected. When the clamping block moves above one of the mounting grooves, the clamping block can drive the lower part of the smear towards the mounting groove to contact the opposite test slide, thereby fixing the angle between the smear and the test slide placed in the mounting groove.
[0006] Furthermore, the sliding frame also includes a first mounting portion, a second mounting portion extending outward from one side of the first mounting portion, and two third mounting portions disposed opposite to each other on both sides of the second mounting portion.
[0007] Furthermore, the positioning groove extends inward from the top surface of the first mounting part away from the side of the second mounting part, and the sliding groove extends inward from the side of the top surface of the second mounting part.
[0008] Furthermore, both the first mounting part and the top surface of the sliding plate are provided with elastic fixing blocks that abut against the top surfaces of the relative sampling glass slide and the detection glass slide.
[0009] Furthermore, two position marks are provided on the top surface of the second mounting part near the sliding groove. The distance between the two position marks is the same as the width of the mounting groove. The sliding plate positions the two ends of the opening of the mounting groove in the sliding groove through the two position marks, so that the pusher applicator is opposite to one of the mounting grooves.
[0010] Furthermore, the third mounting part is provided with a moving groove for the clamping block to move back and forth. The clamping block includes a clamping plate, two moving rods provided on both sides of the clamping plate, and a handle provided at the end of one of the moving rods. The two moving rods are respectively movably disposed in two opposite moving grooves.
[0011] Furthermore, two limiting rings are provided at intervals on one side of the movable rod near its end, and the two limiting rings are respectively located on both sides of the third mounting part.
[0012] Furthermore, the clamping plate includes a placement groove on the top surface of the clamping plate, two positioning plates respectively located on both sides of the placement groove on the top surface of the clamping plate, and positioning bolts movably disposed on the positioning plates and abutting against the top surface of the coated glass slide inserted in the placement groove.
[0013] Furthermore, the inner wall of the sliding groove is formed with two opposing grooves, and the two sides of the sliding plate are provided with two protrusions that are respectively opposite to the two grooves.
[0014] Furthermore, the sliding plate also includes a hand-held fixing block disposed on one side of its top surface.
[0015] As can be seen from the above description of this utility model, compared with the prior art, the beneficial effects of this utility model are as follows: By defining the specific structure of the blood test smear preparation device, this application allows the sliding frame to cooperate with the sliding plate detachably set in the sliding groove and the smear-pushing mechanism set on the sliding frame. In use, medical personnel place the sampling slide containing the patient's blood sample in the positioning groove, and place the corresponding number of test slides in multiple mounting grooves of the sliding plate according to the patient's examination items. Then, the sliding plate or sliding frame is moved so that the smear-pushing mechanism sequentially faces the multiple mounting grooves, thereby sequentially performing smear operations on the test slides placed in the corresponding mounting grooves. This facilitates the preparation of multiple test smears from the same blood sample by medical personnel, and medical personnel can mark the slides on the sliding plate. The system allows for one-person-one-slide testing, facilitating patient information verification by medical staff and preventing confusion. After smear preparation, multiple smears are fixedly placed in several mounting slots. Medical staff can easily store and send the smears by simply removing the sliding plate from the slot, avoiding contamination. Furthermore, by defining the specific structure of the smear-pushing mechanism, the lower end of the smear slide remains in contact with the sampling or testing slide during the process of smearing the slide with the patient's blood sample, thus fixing the smear angle and improving the quality of the test smears. Additionally, by limiting the clamping position of the smear slide on the clamping block, the smear angle can be adjusted. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a blood smear preparation device.
[0017] Figure 2 This is an exploded view of a blood smear preparation device.
[0018] Figure 3 This is a schematic diagram of the sliding frame.
[0019] Figure 4 This is a schematic diagram of the sliding plate.
[0020] Figure 5 This is a schematic diagram of the clamping block.
[0021] Figure 6 This is a schematic diagram of a smear applied to a glass slide at a 45° angle.
[0022] Figure 7 This is a schematic diagram of a smear applied to a glass slide at a 30° angle.
[0023] In the diagram: 1. Sliding frame; 11. Positioning groove; 12. Sliding groove; 13. First mounting part; 14. Second mounting part; 15. Third mounting part; 16. Elastic fixing block; 17. Position marker; 18. Groove; 19. Moving groove; 2. Sliding plate; 21. Mounting groove; 22. Protruding section; 23. Hand-held fixing block; 3. Slide application mechanism; 31. Application slide; 32. Clamping block; 33. Clamping plate; 34. Moving rod; 35. Handle; 36. Limiting ring; 37. Placement groove; 38. Positioning plate; 39. Positioning bolt; 4. Sampling slide; 5. Testing slide. Detailed Implementation
[0024] The present invention will be further described below through specific embodiments.
[0025] like Figures 1 to 7 As shown, this embodiment provides a blood smear preparation device, including a sliding frame 1, a sliding plate 2, and a smear pushing mechanism 3.
[0026] The sliding frame 1 is slidably connected to the sliding plate 2, and includes a positioning groove 11 on its top surface for mounting sampling slides 4 and a sliding groove 12 on its top surface for the sliding plate 2 to move back and forth. The sliding plate 2 is detachably mounted within the sliding groove 12, and includes multiple mounting grooves 21 extending inward from one side of its top surface for mounting multiple test slides 5. These mounting grooves 21 are spaced apart along the length of the sliding plate 2. Specifically, in use, medical personnel place the sampling slide 4 containing the patient's blood sample in the positioning groove 11, and place the corresponding number of test slides 5 in the multiple mounting grooves 21 of the sliding plate 2 according to the patient's examination items. Then, the sliding plate 2 is moved or slid... The frame 1 allows the slide smearing mechanism 3 to sequentially face multiple mounting slots 21, thereby sequentially smearing the test slides 5 placed in the corresponding mounting slots 21. This facilitates the preparation of multiple test smears from the same blood sample by medical staff, and allows medical staff to annotate patient information on the sliding plate 2, enabling one set of test smears per person, making it convenient for medical staff to verify patient information and preventing confusion. Furthermore, the sliding frame 1 also includes a first mounting part 13, a second mounting part 14 extending outward from one side of the first mounting part 13, and two third mounting parts 15 disposed opposite to each other on both sides of the second mounting part 14. Furthermore, the positioning groove 11 extends from the top surface of the first mounting part 13 away from the second mounting part 21. The first mounting part 13 and the sliding plate 2 are both provided with elastic fixing blocks 16 that abut against the top surfaces of the sampling slide 4 and the detection slide 5. The elastic fixing blocks 16 can temporarily position the detection slide 5 placed in the mounting groove 21 and the positioning groove 11 to prevent the detection slide 5 from shifting during the preparation or testing process. Furthermore, the top surface of the second mounting part 14 near the sliding groove 12 is provided with two position marks 17. The distance between the two position marks 17 is the same as the width of the mounting groove 21. The sliding plate 2 is located in the sliding groove 12. The two ends of the opening of the mounting groove 21 are positioned by two position marks 17, so that the pusher applicator 3 is opposite to one of the mounting grooves 21. The position of the mounting groove 21 can be indicated by the two position marks 17, which makes it convenient for medical staff to move the sliding frame 1 or the sliding plate 2. Furthermore, the inner wall of the sliding groove 12 is formed with two opposite grooves 18, and the two sides of the sliding plate 2 are provided with two protrusions 22 that are respectively opposite to the two grooves 18. The sliding frame 1 and the sliding plate 2 are slidably connected by the grooves 18 and the protrusions 22. Furthermore, the sliding plate 2 also includes a hand-held fixing block 23 provided on one side of its top surface, which makes it convenient for medical staff to move and pick up the sliding plate 2.Furthermore, after the application is complete, multiple test slides 5 for each patient are fixed on the sliding plate 2. One sliding plate 2 corresponds to one set of test slides 5 for each patient. By using a separate storage box with multiple storage slots on the box that conform to the shape of the sliding plate 2, multiple sliding plates 2 can be stored in corresponding slots. This facilitates the storage of multiple sets of test slides from multiple patients by medical staff, making storage and delivery for testing convenient.
[0027] The slide application mechanism 3, mounted on the sliding frame 1, can sequentially face multiple mounting slots 21. It includes an application slide 31 and a clamping block 32 movably mounted on the sliding frame 1 for holding the application slide 31. The clamping block 32 can move the application slide 31 towards the sliding plate 2. The application slide 31 and the clamping block 32 are detachably connected. When the clamping block 32 moves above one of the mounting slots 21, it can rotate the lower part of the application slide 31 towards the mounting slot 21 to contact the corresponding detection slide 5, thus fixing the angle between the application slide 31 and the detection slide 5 placed in the mounting slot 21. The cooperation between the smear slide 31 and the clamping block 32 ensures that the lower end of the smear slide 31 remains in contact with the sampling slide 4 or the test slide 5 during the process of smearing the slide 31 with the patient's blood sample from the sampling slide 4 or smearing the test slide 5. This fixes the smear angle of the smear slide 31, which helps improve the quality of the test smear. The smear slide 31 is a commonly used slide in the prior art, and it needs to be replaced with a new slide for the next smear. Specifically, the clamping block 32 includes a clamping plate 33, two moving rods 34 on both sides of the clamping plate 33, and a handle 35 at the end of one of the moving rods 34. The mounting part 15 is provided with a moving groove 19 for the clamping block 32 to move back and forth. Two moving rods 34 are respectively movably disposed in the two opposing moving grooves 19. Furthermore, two limiting rings 36 are provided at intervals on one side of the moving rod 34 near its end. The two limiting rings 36 are respectively located on both sides of the third mounting part 15. By providing the two limiting rings 36, the left and right movement of the moving rod 34 within the opposing moving grooves 19 is restricted. Furthermore, the clamping plate 33 includes a placement groove 37 provided on the top surface of the clamping plate 33, two positioning plates 38 respectively provided on both sides of the placement groove 37 on the top surface of the clamping plate 33, and a movably disposed on the positioning plates 38 for insertion. A positioning bolt 39 is provided in the placement groove 37 to abut the top surface of the smeared glass slide 31. In use, the smeared glass slide 31 can be inserted between the placement groove 37 and the positioning plate 38 and the positioning bolt 39 is used to fix the smeared glass slide 31 in the placement groove 37. Furthermore, by changing the relative position of the smeared glass slide 31 and the placement groove 37, when the two positioning plates 38 are clamped near the middle and upper positions of the smeared glass slide 31, so that the lower end of the smeared glass slide 31 contacts and abuts the surface of the relative test glass slide 5, the smearing angle of the smeared glass slide 31 is between 30° and 45°, and the blood sample smear on the test glass slide 5 will not be too thick or too thin.By limiting the clamping position of the smear slide 31, the smear angle can be adjusted. After the clamping position is fixed, the handle 35 is held and rotated downwards to make the front end of the smear slide 31 abut against the surface of the relative test slide 5. At this time, the smear angle is fixed. When medical staff prepare the test smear, they apply force by holding the handle 35 so that the lower end of the smear slide 31 always abuts against the sampling slide 4 or the test slide 5 during the movement, preventing the smear slide 31 from flipping upwards when smearing blood samples, and ensuring the uniformity of blood sample smears on multiple test slides 5.
[0028] The specific working principle of this application is as follows:
[0029] When preparing a test smear, medical staff first fix the sampling slide 4 containing the patient's blood sample in the positioning groove 11 of the sliding frame 1 and fix the multiple test slides 5 that need to be smeared in the multiple mounting grooves 21 of the sliding plate 2. Then, the sliding frame 1 or the sliding plate 2 is moved so that the two ends of the opening of one of the mounting grooves 21 on the sliding plate 2 are aligned with the two position marks 17 on the sliding frame 1. Next, the smearing slide 31 is rotated so that its lower end contacts and abuts against the surface of the sampling slide 4 and evenly picks up the blood sample on the test slide 5 in the positioning groove 11. Then, the smearing slide 31 is moved forward to above the corresponding mounting groove 21. At this time, the clamping block 32 drives the lower end of the smearing slide 31 to rotate towards the mounting groove 21 and abut against the surface of the corresponding test slide 5 and move forward, thereby spreading the blood sample on the corresponding test slide 5. The test smear preparation is completed.
[0030] In summary, by utilizing the above-mentioned technical solution of this utility model and defining the specific structure of the blood smear preparation device, the sliding frame 1, through the cooperation between the sliding plate 2 detachably disposed within the sliding groove 12 and the smear-pushing mechanism 3 disposed on the sliding frame 1, facilitates the preparation of multiple test smears from the same blood sample by medical personnel. Furthermore, medical personnel can annotate patient information on the sliding plate 2, enabling one set of test smears per person, which is convenient for medical personnel to verify patient information and prevents confusion. Simultaneously, after the smears are completed, multiple test smears are fixedly placed in multiple mounting slots 21, allowing medical personnel to... The sliding plate 2 needs to be removed from the sliding groove 12 to store and send multiple test smears on the sliding plate 2 for testing, avoiding contamination of the test smears; in addition, by defining the specific structure of the slide application mechanism 3, the smearing slide 31 is clamped on the clamping plate 33, and the moving rod 34 and the handle 35 are rotated downward to apply force, so that the lower end of the smearing slide 31 contacts and abuts against the surface of the sampling slide 4 or the test slide 5, thereby fixing the smearing angle of the smearing slide 31; in addition, by defining the clamping position of the smearing slide 31 on the clamping block 32, the smearing angle of the smearing slide 31 is adjusted.
[0031] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model application and the contents of the specification should still fall within the scope of the present utility model application.
Claims
1. A blood smear preparation device, characterized in that: The system includes a sliding frame, a sliding plate, and a slide application mechanism. The sliding frame is slidably connected to the sliding plate and includes a positioning groove on its top surface for mounting sampling slides and a sliding groove on its top surface for the sliding plate to move back and forth. The sliding plate is detachably mounted in the sliding groove and includes multiple mounting grooves extending inward from one side of its top surface for mounting multiple detection slides. The multiple mounting grooves are spaced apart along the length of the sliding plate. The slide application mechanism is mounted on the sliding frame and can be sequentially positioned opposite the multiple mounting grooves. It includes an application slide and a clamping block movably mounted on the sliding frame for holding the application slide. The clamping block can drive the application slide to move towards the sliding plate. The application slide and the clamping block are detachably connected. When the clamping block moves above one of the mounting grooves, the clamping block can drive the lower part of the application slide to rotate towards the mounting groove and contact the opposite detection slide, thereby fixing the angle between the application slide and the detection slide placed in the mounting groove.
2. The blood smear preparation device according to claim 1, characterized in that: The sliding frame also includes a first mounting portion, a second mounting portion extending outward from one side of the first mounting portion, and two third mounting portions disposed opposite to each other on both sides of the second mounting portion.
3. The blood smear preparation device according to claim 2, characterized in that: The positioning groove extends inward from the top surface of the first mounting part away from the side of the second mounting part, and the sliding groove extends inward from the side of the top surface of the second mounting part.
4. The blood smear preparation device according to claim 2, characterized in that: Both the first mounting part and the top surface of the sliding plate are provided with elastic fixing blocks that abut against the top surfaces of the relative sampling glass slide and the detection glass slide.
5. The blood smear preparation device according to claim 2, characterized in that: Two position marks are provided on the top surface of the second mounting part near the sliding groove. The distance between the two position marks is the same as the width of the mounting groove. The sliding plate positions the two ends of the opening of the mounting groove in the sliding groove through the two position marks, so that the push-plate application mechanism is opposite to one of the mounting grooves.
6. The blood smear preparation apparatus according to claim 2, characterized in that: The third mounting part is provided with a moving groove for the clamping block to move back and forth. The clamping block includes a clamping plate, two moving rods provided on both sides of the clamping plate, and a handle provided at the end of one of the moving rods. The two moving rods are respectively movably arranged in two opposite moving grooves.
7. The blood smear preparation apparatus according to claim 6, characterized in that: Two limiting rings are provided at intervals on one side of the movable rod near its end, and the two limiting rings are respectively located on both sides of the third mounting part.
8. The blood smear preparation apparatus according to claim 6, characterized in that: The clamping plate includes a placement groove on the top surface of the clamping plate, two positioning plates respectively located on both sides of the placement groove on the top surface of the clamping plate, and positioning bolts movably mounted on the positioning plates and abutting against the top surface of the coated glass slide inserted in the placement groove.
9. The blood smear preparation apparatus according to claim 1, characterized in that: The inner wall of the sliding groove has two opposing grooves, and the two sides of the sliding plate are provided with two protrusions that are respectively opposite to the two grooves.
10. The blood smear preparation apparatus according to claim 1, characterized in that: The sliding plate also includes a hand-held fixing block disposed on one side of its top surface.