dyeing rack
By designing a rotatable staining rack, the problems of inflexible operation and low efficiency of existing staining racks are solved, realizing automated batch staining, reducing costs, and making it suitable for small and medium-sized laboratories.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI INNOSTAR BIO TECH
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing staining racks are inflexible in operation during the staining process, requiring manual transfer of slides, resulting in low batch staining efficiency and high costs, making it difficult to meet the needs of small and medium-sized laboratories.
Design a staining rack containing two or more independently rotatable support structures. The smears can be changed between a first rotation position and a second rotation position to achieve smear angle adjustment. No manual transfer is required, and it supports an automated process of staining, settling, rinsing and drying.
It improves staining efficiency, reduces operational steps and contamination risks, lowers costs, saves waiting time, and is suitable for small and medium-sized laboratories.
Smart Images

Figure CN224552859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of experimental equipment, and in particular to a staining rack. Background Technology
[0002] The staining process for bone marrow or blood smears typically involves four steps: staining, settling, rinsing, and drying. To complete this process, a staining rack is needed to hold the smears (usually glass slides). In existing technologies, staining racks have a fixed angle and are generally divided into horizontal and vertical racks. Horizontal racks are typically used for staining and settling, but during rinsing, the slides need to be manually tilted, leading to unstable water flow control and potentially uneven staining or sample detachment. This limits operational flexibility. Vertical racks are mainly used for drying but cannot be used directly for staining; slides must be manually transferred, increasing the number of steps and the risk of contamination. Furthermore, in batch staining, each slide needs to be rinsed and transferred individually, which is inefficient and difficult to standardize. If a fully automated staining machine is chosen instead of a staining rack, the cost is higher because it requires a dedicated staining kit (closed system), making the staining cost higher than manual staining, which is unaffordable for small and medium-sized laboratories. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of existing technology that requires manual transfer of glass slides and has low batch staining efficiency, and to provide a staining rack.
[0004] The present invention solves the above-mentioned technical problems through the following technical solution:
[0005] A dyeing sheet holder, the dyeing sheet holder comprising a frame;
[0006] The smear holder also includes two or more support structures, each of which is used to hold smears.
[0007] Each of the aforementioned support structures is connected to the staining frame and can rotate independently between a first rotational position and a second rotational position to change the angle between the smear and the horizontal direction;
[0008] Each of the aforementioned load-bearing structures can be fixed at the first rotational position and the second rotational position.
[0009] In this technical solution, the slide staining rack is provided with two or more independently rotatable support structures for holding slides. Each support structure can be fixed in a first rotation position and a second rotation position, thereby adjusting the angle of the slides. This eliminates the need for manual slide transfer, reducing operational steps and lowering the risk of contamination. Furthermore, during batch staining, the slides on each support structure can be stained, settled, rinsed (fixed in the first rotation position), and dried sequentially (rotated to a large angle or fixed in the second rotation position). Thus, while staining, settling, and rinsing are being performed on slides on subsequent support structures, the slides on preceding support structures can be dried simultaneously. Compared to traditional slide staining rack designs where all slides undergo the same step simultaneously, this slide staining rack saves significant waiting time, improves work efficiency, and is less expensive than fully automatic slide staining machines.
[0010] Preferably, when the supporting structure is in the first rotational position, the coating is in a horizontal position; and / or,
[0011] When the supporting structure is in the second rotational position, the coating is in a vertical position.
[0012] In this technical solution, by setting the smear to a horizontal position when the supporting structure is in the first rotation position, it is convenient for the dyeing solution to spread evenly during the dyeing, settling, and rinsing steps.
[0013] By setting the smear to be in a vertical position when the supporting structure is in the second rotation position, it is beneficial for the natural flow and drainage of the remaining dye solution and water during the drying step.
[0014] Preferably, the support structure includes two or more coating receiving components, which are arranged sequentially along the rotation axis of the support structure.
[0015] In this technical solution, through the above-mentioned setup, a single supporting structure can simultaneously support two or more smears and uniformly adjust the tilt angle of these smears, further facilitating batch processing of smears, improving experimental efficiency, and ensuring the consistency of sample processing.
[0016] Preferably, the coating receiving assembly includes two first limiting members and one second limiting member, wherein one of the first limiting members, the second limiting member and the other first limiting member are sequentially connected and fixed to form a coating receiving space to receive the coating.
[0017] In this technical solution, through the above-mentioned settings, the first limiting member, the second limiting member, and another first limiting member achieve three-sided enclosure of the coating, ensuring the stability of the coating during the processing and reducing the risk of displacement or detachment of the coating.
[0018] Preferably, the second limiting member has a hollow structure and is located at the bottom of the coating receiving space; and / or,
[0019] The first limiting component is a buckle.
[0020] In this technical solution, by setting the second limiting member to a hollow structure, and the second limiting member being located at the bottom of the coating receiving space, the discharge efficiency of residual dyeing liquid and water during the drying process is improved.
[0021] By setting the first limiting element as a buckle, the smear can be detachably placed in the smear receiving space, further improving the ease of operation.
[0022] Preferably, the frame is provided with rotating channels at both ends;
[0023] The bearing structure further includes a rotating component, which includes a tension-rotation locking structure and a rotating handle. The rotating component is capable of displacement between a rotational position and a locking position along the rotation axis of the bearing structure, so that the tension-rotation locking mechanism can be rotatably or fixedly connected to the rotation channel.
[0024] The size of the rotating handle is larger than the size of the rotating channel, and it is located on the outer side of the end of the frame.
[0025] In this technical solution, the above-described configuration allows for convenient rotation or locking of the load-bearing structure using a tension-rotation locking structure. Specifically, when the load-bearing structure needs to rotate, the rotating component is moved to the rotational position along the rotation axis of the load-bearing structure; when the load-bearing structure needs to be fixed at a first or second rotational position, the rotating component is moved to the fixed position along the rotation axis of the load-bearing structure. This allows for convenient switching between fixed and rotating states of the load-bearing structure. A rotating handle is provided to prevent the load-bearing structure from detaching from the frame and to facilitate the operator's grip for manipulating the displacement and rotation of the tension-rotation locking mechanism.
[0026] Preferably, the rotating handle has a polygonal structure.
[0027] In this technical solution, the above settings provide operators with a better grip and operating experience, making it easier to adjust and fix the load-bearing structure more stably.
[0028] Preferably, the staining frame further includes multiple timing structures, each of which is connected to the frame and is respectively provided corresponding to each of the supporting structures.
[0029] In this technical solution, the above settings facilitate independent timing for each load-bearing structure, ensuring the accuracy and consistency of the staining time for the smear, and facilitating batch staining.
[0030] Preferably, the dyeing rack further includes a drainage ramp located at the bottom of the rack, corresponding to the position of the supporting structure.
[0031] In this technical solution, the above-mentioned settings allow the liquid at the bottom of the frame to drain naturally along the inclined direction of the drainage slope, preventing water from accumulating at the bottom of the frame and keeping the frame dry and clean.
[0032] Preferably, the dyeing rack further includes a drainage pipe, one end of which is located on the lower side of the drainage ramp, and the other end of which is connected to the outside.
[0033] In this technical solution, by using the above-mentioned setup, drainage pipes and drainage ramps are used for drainage, so that the staining rack does not need to be placed in the water tank for operation, thus not occupying water tank space, eliminating the need to move the rack, and making it less likely to cause waste liquid to overflow and contaminate the experimental area, thereby further improving operational efficiency.
[0034] The positive and progressive effects of this utility model are as follows:
[0035] This staining rack features two or more independently rotatable support structures for holding smears. Each support structure can be fixed in a first and second rotational position, allowing adjustment of the smear angle without manual slide transfer, reducing operational steps and lowering the risk of contamination. Furthermore, during batch staining, smears on each support structure can be sequentially stained, settled, rinsed (fixed in the first rotational position), and dried (rotated to a large angle or fixed in the second rotational position). This allows smears on subsequent support structures to undergo staining, settling, and rinsing while those on earlier support structures are simultaneously dried. Compared to traditional staining rack designs where all smears undergo the same step simultaneously, this rack saves significant waiting time, improves efficiency, and is less expensive than fully automatic staining machines. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the structure of a dyeing frame according to an embodiment of the present invention.
[0037] Figure 2 This is a schematic diagram of the load-bearing structure according to an embodiment of the present invention.
[0038] Figure 3 This is a schematic diagram of the structure of a coating receiving assembly according to an embodiment of the present invention.
[0039] Figure 4 This is a flowchart illustrating the method of using the staining rack according to an embodiment of the present invention.
[0040] Explanation of reference numerals in the attached figures:
[0041] Frame 1
[0042] Handle 11
[0043] Load-bearing structure 2
[0044] Patch receiving assembly 21
[0045] First limiting component 211
[0046] Second limiting component 212
[0047] 213 smear containment space
[0048] Rotating handle 22
[0049] 23 Stretch-rotation locking structure
[0050] Timing Structure 3
[0051] Drainage ramp 41
[0052] Drainage pipe 42 Detailed Implementation
[0053] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0054] like Figures 1-3 As shown, this embodiment provides a stencil holder, which includes a frame 1 and two or more support structures 2. Each support structure 2 is used to place stencils, is connected to the stencil holder, and can rotate independently between a first rotation position and a second rotation position to change the angle between the stencil and the horizontal direction.
[0055] Each load-bearing structure 2 can be fixed at the first rotational position and the second rotational position.
[0056] In this way, by providing this staining rack, two or more independently rotatable support structures 2 are provided for placing the smears. Each support structure 2 can be fixed in a first rotation position and a second rotation position, thereby adjusting the angle of the smear. This eliminates the need for manual transfer of slides, reducing operational steps and lowering the risk of contamination. Furthermore, during batch staining, the smears on each support structure 2 can be stained, allowed to stand, rinsed (fixed in the first rotation position), and dried (rotated to a large angle or fixed in the second rotation position) in sequence.
[0057] While the coatings on the rear support structure 2 undergo dyeing, settling, and rinsing steps, the coatings on the front support structure 2 can simultaneously undergo drying. Compared to traditional coating rack designs where all coatings undergo the same step simultaneously, this coating rack saves significant waiting time, improves work efficiency, and is less expensive than fully automatic coating machines.
[0058] In this embodiment, when the supporting structure 2 is in the first rotation position, the smear is in a horizontal position, which facilitates the uniform spreading of the dyeing solution during the dyeing, settling and rinsing steps.
[0059] In this embodiment, when the supporting structure 2 is in the second rotation position, the smear is in a vertical position, which is conducive to the natural flow and drainage of the remaining dyeing solution and water during the drying step.
[0060] In this embodiment, the support structure 2 includes two or more smear receiving components 21. Along the rotation axis of the support structure 2, each smear receiving component 21 is arranged in sequence, so that a single support structure 2 can simultaneously support two or more smears and uniformly adjust the tilt angle of these smears, which further facilitates batch processing of smears, improves experimental efficiency, and ensures the consistency of sample processing.
[0061] In this embodiment, the smear receiving assembly 21 includes two first limiting members 211 and one second limiting member 212. One first limiting member 211, the second limiting member 212, and the other first limiting member 211 are sequentially connected and fixed to form a smear receiving space 213 to accommodate the smear. In this way, the first limiting member 211, the second limiting member 212, and the other first limiting member 211 achieve three-sided enclosure of the smear, ensuring the stability of the smear during processing and reducing the risk of smear displacement or detachment.
[0062] In this embodiment, the second limiting member 212 is a hollow structure. The second limiting member 212 is located at the bottom of the coating receiving space 213, which improves the discharge efficiency of residual dyeing liquid and water during the drying process.
[0063] In this embodiment, the first limiting member 211 is a buckle, which facilitates the detachable placement of the smear in the smear receiving space 213, further improving the ease of operation.
[0064] In this embodiment, the supporting structure 2 is made of stainless steel, which, together with the aforementioned buckle, achieves the effects of corrosion resistance, eliminating the need for frequent component replacements, and resulting in low long-term operating costs.
[0065] In this embodiment, the frame 1 has rotating channels at both ends.
[0066] The bearing structure 2 also includes a rotating assembly, which includes a tension-rotation locking structure 23 and a rotating handle 22. The rotating assembly is capable of displacement between a rotating position and a locking position along the rotation axis of the bearing structure 2, so that the tension-rotation locking mechanism can be rotatably or fixedly connected to the rotating channel.
[0067] The size of the rotating handle 22 is larger than the size of the rotating channel, and it is located on the outer side of the end of the frame 1.
[0068] In this way, the tension-rotation locking structure 23 can be used to conveniently rotate or lock the bearing structure 2. That is, when the bearing structure 2 needs to be rotated, the rotating component is moved to the rotation position along the rotation axis of the bearing structure 2; when the bearing structure 2 needs to be fixed at the first rotation position or the second rotation position, the rotating component is moved to the fixed position along the rotation axis of the bearing structure 2, thereby achieving a relatively convenient switching between the fixed and rotating states of the bearing structure 2. A rotating handle 22 is provided to prevent the bearing structure 2 from detaching from the frame 1, and at the same time, it is convenient for the operator to hold and operate the displacement and rotation of the tension-rotation locking mechanism.
[0069] The stretch-rotation locking structure 23 can refer to existing designs in the prior art and may include the following operating steps: stretch unlocking: by pulling the side spiral or rod outward, it releases the lock between the spiral and the bottom or other parts, allowing the structure to rotate freely or adjust the angle; rotation adjustment: in the unlocked state, the bottom rod or part can rotate freely to the desired position; press locking: press the spiral or rod back to its original position, so that it engages with the buckle in another position, thereby re-fixing the part and ensuring its stability.
[0070] In this embodiment, the rotating handle 22 has a polygonal structure, which provides the operator with a better grip and operating experience, and facilitates more stable adjustment and fixation of the load-bearing structure 2.
[0071] In this embodiment, the staining frame also includes multiple timing structures 3, each of which is connected to the frame 1 and is set to correspond to each support structure 2. This facilitates independent timing for each support structure 2, ensuring the accuracy and consistency of the staining time for the smears and enabling batch staining.
[0072] In this embodiment, the timing structure 3 includes a timer frame and a corresponding timer embedded in the frame 1.
[0073] In this embodiment, the dyeing rack also includes a drainage ramp 41, which is located at the bottom of the rack 1 and is positioned corresponding to the bearing structure 2. This allows liquid at the bottom of the rack 1 to drain naturally along the inclined direction of the drainage ramp 41, preventing water from accumulating at the bottom of the rack 1 and keeping the rack 1 dry and clean.
[0074] In this embodiment, the staining rack also includes a drainage pipe 42. One end of the drainage pipe 42 is located on the lower side of the drainage ramp 41, and the other end of the drainage pipe 42 is connected to the outside. By using the drainage pipe 42 and the drainage ramp 41 together for drainage, the staining rack does not need to be placed in the water tank for operation, thus saving water tank space and eliminating the need to move the rack. It also reduces the risk of waste liquid overflowing and contaminating the experimental area, further improving operational efficiency.
[0075] In this embodiment, the other end of the drainage pipe 42 is connected to the water tank, and the drainage pipe 42 is a flexible hose to facilitate flexible adjustment of the positional relationship between the dyeing sheet rack and the water tank.
[0076] In this embodiment, the frame 1 is provided with a handle 11 to facilitate the operator in adjusting the position of the dyeing sheet rack, which is usually adjusted at the end of dyeing or before dyeing begins.
[0077] like Figure 4 As shown, this embodiment also provides a method for using a staining frame, the steps of which include:
[0078] S1. Fix the support structure 2 in the first rotation position and insert the glass slide to be stained into the support structure 2;
[0079] S2. Add staining solution to the slide and let it stand, then place the timer in the timer holder;
[0080] S3. After the timer displays the specified time, slowly rinse off the staining solution from one side of the smear with running water. The staining solution is discharged through the drainage ramp 41 and the drainage pipe 42.
[0081] S4. The operator holds the rotating handle 22 to move and rotate, so that the supporting structure 2 is fixed in the second rotation position, and the remaining water on the glass slide flows downward through the second limiting member 212 and is discharged through the drainage ramp 41 and the drainage pipe 42.
[0082] S5. Leave the glass slide on the supporting structure 2 for a period of time until the glass slide dries, thus completing the staining process.
[0083] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A dyeing sheet holder, the dyeing sheet holder comprising a frame body, characterized in that: The smear holder also includes two or more support structures, each of which is used to hold smears. Each of the aforementioned support structures is connected to the staining frame and can rotate independently between a first rotational position and a second rotational position to change the angle between the smear and the horizontal direction; Each of the aforementioned load-bearing structures can be fixed at the first rotational position and the second rotational position.
2. The staining frame as described in claim 1, characterized in that, When the supporting structure is in the first rotational position, the coating is in a horizontal position; and / or, When the supporting structure is in the second rotational position, the coating is in a vertical position.
3. The staining frame as described in claim 1, characterized in that, The support structure includes two or more coating receiving components, which are arranged sequentially along the rotation axis of the support structure.
4. The staining frame as described in claim 3, characterized in that, The coating receiving assembly includes two first limiting members and one second limiting member, wherein one first limiting member, the second limiting member and the other first limiting member are sequentially connected and fixed to form a coating receiving space to receive the coating.
5. The staining frame as described in claim 4, characterized in that, The second limiting member has a hollow structure and is located at the bottom of the coating receiving space; and / or, The first limiting component is a buckle.
6. The staining frame as described in claim 1, characterized in that, The frame is provided with rotating channels at both ends; The bearing structure further includes a rotating component, which includes a tension-rotation locking structure and a rotating handle. The rotating component is capable of displacement between a rotational position and a locking position along the rotation axis of the bearing structure, so that the tension-rotation locking structure can be rotatably or fixedly connected to the rotation channel. The size of the rotating handle is larger than the size of the rotating channel, and it is located on the outer side of the end of the frame.
7. The staining frame as described in claim 6, characterized in that, The rotating handle has a polygonal structure.
8. The staining frame as described in claim 1, characterized in that, The staining rack also includes multiple timing structures, each of which is connected to the rack body and is respectively set corresponding to each of the supporting structures.
9. The staining frame as described in any one of claims 1-8, characterized in that, The dyeing rack also includes a drainage ramp, which is located at the bottom of the rack and is positioned corresponding to the location of the supporting structure.
10. The staining frame as described in claim 9, characterized in that, The staining rack also includes a drainage pipe, one end of which is located on the lower side of the drainage ramp, and the other end of which is connected to the outside.