Clinical examination dyeing and draining multifunctional rack
By designing a combined structure of support rods, staining racks, and drain baskets, the problems of slide displacement and leakage during staining were solved, achieving stable and efficient draining operations, simplifying laboratory procedures, and reducing slide breakage rate and space occupation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGGANG DISTRICT CENT HOSPITAL OF SHENZHEN
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-16
AI Technical Summary
Existing slide fixation mechanisms lack effective planar fixation devices, leading to easy displacement and liquid leakage during staining, increasing the risk of cross-contamination of biological samples, and the post-processing is inefficient and increases the slide breakage rate, while also occupying laboratory bench space.
A multifunctional staining and draining rack for clinical laboratory testing was designed, including a support rod, a staining rack, and a draining basket. It uses fasteners and a socket structure to stabilize the slides, and combines stainless steel material to improve stability. It can also be adapted to different water tank sizes through a telescopic extension rod, integrating staining and draining into one unit.
This technology ensures the stability of glass slides during the staining process, prevents liquid leakage, simplifies the post-processing steps, reduces slide breakage and space occupation, and improves operational efficiency and work area cleanliness.
Smart Images

Figure CN224365844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and in particular to a multifunctional rack for draining stains in clinical testing. Background Technology
[0002] In standardized staining procedures in clinical testing and laboratories, smear staining requires a staining rack or staining container. Currently available staining racks and containers are primarily designed for staining pathological sections, where the entire slide is submerged in the staining solution and then removed for rinsing or further processing after staining. In clinical testing or laboratory staining, slides need to be laid flat and stable to prevent liquid leakage. When rinsing, the slide should be held horizontally and rinsed with running water to remove the stain and prevent dye from settling on the membrane. After rinsing, the slide should be drained using a separate rack or container.
[0003] Existing slide processing techniques suffer from the following technical bottlenecks and safety hazards: 1) Defects in slide fixation mechanisms: Current methods lack effective planar fixation devices for slides, making them prone to leakage during staining due to slide displacement. This not only affects the uniformity of staining quality but also poses a risk of cross-contamination of biological samples; 2) Inefficient post-processing procedures: After rinsing, slides must be transferred to dedicated storage devices. This process significantly extends the operation cycle (increasing working hours by an average of 15%) and increases the slide breakage rate due to frequent contact (laboratory data shows an 8.2% increase in breakage rate). Furthermore, the additional storage equipment occupies more than 30% of the lab bench space, severely impacting the maintenance of cleanliness in the work area. Utility Model Content
[0004] This invention provides a multi-functional slide staining and draining rack for clinical testing, aiming to solve the technical problems existing in current slide processing technology.
[0005] This utility model provides a multifunctional staining and draining rack for clinical laboratory testing, including support rods, a staining rack, and a draining basket. At least two support rods are arranged in parallel. The staining rack is mounted above the support rods. The staining rack has at least one staining platform for placing glass slides. The staining platform has a fixing member and an insertion hole. The draining basket is connected to the bottom of the staining platform and aligned with the insertion hole. When the glass slide is placed flat on the staining platform, the fixing member limits the edge of the glass slide. When the glass slide is placed upright on the staining platform, the glass slide is inserted into the insertion hole and limited in the draining basket.
[0006] As a further improvement of this utility model, the fixing component includes a buckle, and the buckle is connected to one end and the side of the staining platform. The glass slide is placed flat into the staining platform from the other end, and the buckle respectively locks the side edge and one end edge of the glass slide.
[0007] As a further improvement of this utility model, the drain basket is composed of multiple drain bars arranged side by side at intervals, each drain bar having a U-shaped structure, and the U-shaped opening of the drain bar is connected to the bottom of the dyeing platform and aligned with the insertion hole.
[0008] As a further improvement of this utility model, multiple dyeing platforms are arranged side by side on the dyeing rack at intervals.
[0009] As a further improvement of this utility model, the bottom of the dyeing rack is provided with an arc-shaped slot, which is connected to the support rod.
[0010] As a further improvement of this utility model, the multifunctional clinical laboratory staining and draining rack also includes an extension rod, at least one end of the support rod is connected to the extension rod, and the extension rod is telescopically connected to the support rod.
[0011] As a further improvement of this utility model, the extension rod is sleeved on the support rod, and the inner surface of the extension rod is in contact with the outer surface of the support rod.
[0012] As a further improvement of this utility model, the dyeing rack is made of stainless steel.
[0013] The beneficial effects of this invention are: This structure is an auxiliary instrument for staining specifically designed for clinical testing or laboratories. This multifunctional rack can stabilize slides during staining, preventing them from shaking; it is not limited by the size of the water tank during draining; slides are easy to pick up when rinsing and can be placed directly on the rack to drain after rinsing, eliminating the need to find a separate place to drain; and it can be disassembled and stored when not in use, saving space. Attached Figure Description
[0014] Figure 1 This is an overall structural diagram of the multifunctional clinical laboratory staining and draining rack of this utility model;
[0015] Figure 2 This is a top view of the structure of the multifunctional clinical laboratory staining and draining rack of this utility model;
[0016] Figure 3 This is a side view of the structure of the multifunctional clinical laboratory staining and draining rack of this utility model;
[0017] Figure 4 This is a front view of the structure of the multifunctional clinical laboratory staining and draining rack of this utility model;
[0018] Figure 5 This is a structural diagram of the multifunctional clinical laboratory staining and draining rack for laying flat glass slides.
[0019] Figure 6 This is a structural diagram of the multifunctional slide holder for clinical laboratory staining and draining. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0021] like Figures 1 to 6 As shown, this utility model discloses a multi-functional clinical laboratory staining and draining rack, comprising a support rod 1, a staining rack 2, and a draining basket 3. At least two support rods 1 are arranged in parallel. The staining rack 2 is mounted above the support rods 1. The staining rack 2 has at least one staining platform 4 for placing glass slides 10. The staining platform 4 is provided with a fixing member and an insertion hole 5. The draining basket 3 is connected below the staining platform 4 and aligned with the insertion hole 5. When the glass slide 10 is placed flat on the staining platform 4, the fixing member limits the edge of the glass slide 10. When the glass slide 10 is placed upright on the staining platform 4, the glass slide 10 is inserted into the insertion hole 5 and limited within the draining basket 3.
[0022] The multi-functional staining and draining rack for clinical laboratory use consists of three parts: a support rod 1, a staining rack 2, and a draining basket 3. The staining rack 2 is detachably mounted on the support rod 1. The staining rack 2 has multiple staining platforms 4 for placing glass slides 10. Each staining platform 4 corresponds to one glass slide 10 and is also connected to a draining basket 3. Through the cooperation of the fixing parts, insertion holes 5, and draining baskets 3 on the staining platforms 4, the glass slides 10 can be placed flat on the staining rack 2 for smearing or placed upright on the staining rack 2 for draining.
[0023] The fixing components include clips 6. Clips 6 are connected to one end and the side of the staining platform 4. The slide 10 is placed flat into the staining platform 4 from the other end, and the clips 6 respectively lock the side edge and one end edge of the slide 10. The staining platform 4 is used for staining. The standard size of the slide 10 is 25×75mm, and the thickness is 1-1.2mm. A maximum of 10 slides 10 can be placed on one staining rack 2. The plane length of a single slide 10 is 67mm and the width is 26mm. There are clips 6 on the left and middle of the staining platform 4 to secure the slide 10 from the end and the side. After staining, the slide 10 is picked up from the right side with tweezers or taken out by hand and rinsed with water.
[0024] The drain basket 3 is composed of multiple drain strips 7 arranged side-by-side at intervals. Each drain strip 7 has a U-shaped structure, and the U-shaped opening of the drain strip 7 is connected to the bottom of the staining platform 4 and aligned with the insertion hole 5. The drain basket 3 serves to drain water. A drain basket 3 is placed in the middle of the plane where the slide 10 is placed. After rinsing, the slide can be directly inserted into the staining platform 4 to drain, eliminating the need for a separate draining area. The U-shaped structure of the drain strips 7 allows the slide 10 to be inserted into the drain basket 3 and restricts its position. The intervals between the multiple drain strips 7 allow water to flow away along the gaps, preventing water accumulation in the drain basket 3.
[0025] Multiple staining platforms 4 are arranged side by side on the staining rack 2 with intervals between them. Each staining platform 4 can hold one glass slide 10. The multiple staining platforms 4 are arranged with intervals so that multiple glass slides 10 can be placed on the staining rack 2 at the same time, and it can be ensured that each glass slide 10 does not affect each other.
[0026] The bottom of the staining rack 2 is provided with an arc-shaped slot 8, which is connected to the support rod 1. The support rod 1 can be connected in the arc-shaped slot 8 to limit the staining rack 2 to be connected to the support rod 1, preventing the staining rack 2 from wobbling from side to side and affecting the smearing operation.
[0027] The multi-functional clinical laboratory staining and draining rack also includes an extension rod 9. At least one end of the support rod 1 is connected to the extension rod 9, which is telescopically connected to the support rod 1. Preferably, an extension rod 9 is sleeved at each end of the support rod 1. The extension rod 9 is sleeved on the support rod 1, and the inner surface of the extension rod 9 contacts the outer surface of the support rod 1. The extension rod 9 and the support rod 1 are fixed by friction. With the aid of external force, the position of the extension rod 9 sleeved on the support rod 1 can be adjusted, thereby increasing the extension length of the support rod 1 to meet the needs of various sizes of water tanks.
[0028] The staining rack 2 is made of stainless steel. Using stainless steel increases the rack's rigidity and weight, providing ample support for the placement of the glass slide 10.
[0029] The operating principle of this multi-functional clinical laboratory staining and draining rack is as follows:
[0030] According to the size of the water tank, adjust the length of the extension rod 9 on the support rod 1, and set the adjusted support rod 1 above the water tank. Then, set the staining rack 2 on the support rod 1. When preparing the smear, first place the slide 10 flat on the surface of the staining platform 4 along the right side of the platform. Push the slide 10 flat into the clip 6 in the middle of the staining platform 4, with the side of the slide 10 limited and the end of the slide 10 limited to the clip 6 on the left side of the platform 4. At this point, the slide 10 is fixed in a flat position, and the smearing operation is completed in this state. When draining, use tweezers or your hand to horizontally remove the stained slide 10 from the right side of the staining platform 4, and align one end of the slide 10 with the insertion hole 5 and insert it into the drain basket 3 until it reaches the bottom of the drain basket 3. At this point, the slide 10 is placed upright on the staining platform 4 under the restriction of the insertion hole 5 and the drain basket 3. The drained water flows into the water tank along the gap of the drain basket 3 until the slide 10 is completely drained.
[0031] The staining rack 2 integrates staining and draining, greatly facilitating and meeting the needs of laboratory personnel for staining slides. In terms of detailed design, it has the following advantages: (1) The staining platform 4 is designed with a plane according to the standard size of the slide 10. Each staining platform 4 can just place a slide 10 flat or upright; (2) The staining rack 2 is made of stainless steel to ensure that the staining rack 2 has a certain weight to maintain the stability of the slide 10 during staining and draining; (3) There are buckles 6 on the left and middle of the staining rack 2. When placing the slide 10, it is secured by the buckles 6 to ensure that the staining solution of the slide 10 will not leak. There are no buckles 6 on the right side of the staining rack 2, making it easy to pick up; (4) A draining basket 3 is set at the bottom of the staining rack 2. After rinsing, the slide 10 can be placed directly on the rack to drain without having to find another place to drain, saving laboratory table space and not affecting the cleanliness of the work area; (5) Extendable extension rods 9 are added to both ends of the support rod 1. The corresponding support length can be adjusted according to the width of the water tank and is not limited by the size of the water tank.
[0032] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A multifunctional rack for draining staining in clinical laboratory tests, characterized in that, The device includes a support rod, a staining rack, and a drain basket. At least two of the support rods are arranged in parallel. The staining rack is mounted above the support rods. The staining rack has at least one staining platform for placing glass slides. The staining platform has a fixing element and an insertion hole. The drain basket is connected to the bottom of the staining platform and aligned with the insertion hole. When the glass slide is placed flat on the staining platform, the fixing element limits the edge of the glass slide. When the glass slide is placed upright on the staining platform, the glass slide is inserted into the insertion hole and limited in the drain basket.
2. The multifunctional clinical laboratory staining and draining rack according to claim 1, characterized in that, The fastener includes a buckle, and the staining platform is connected to one end and the side. The glass slide is placed flat into the staining platform from the other end, and the buckles respectively lock the side edge and one end edge of the glass slide.
3. The multifunctional clinical laboratory staining and draining rack according to claim 1, characterized in that, The drain basket is composed of multiple drain bars arranged side by side at intervals. Each drain bar has a U-shaped structure, and the U-shaped opening of the drain bar is connected to the bottom of the dyeing platform and aligned with the insertion hole.
4. The multifunctional clinical laboratory staining and draining rack according to claim 1, characterized in that, Multiple staining platforms are arranged side-by-side with intervals between them on the staining rack.
5. The multifunctional clinical laboratory staining and draining rack according to claim 1, characterized in that, The dyeing rack has an arc-shaped slot at the bottom, which is connected to the support rod.
6. The multifunctional clinical laboratory staining and draining rack according to claim 1, characterized in that, It also includes an extension rod, at least one end of which is connected to the support rod, the extension rod being telescopically connected to the support rod.
7. The multifunctional clinical laboratory staining and draining rack according to claim 6, characterized in that, The extension rod is sleeved on the support rod, and the inner surface of the extension rod is in contact with the outer surface of the support rod.
8. The multifunctional clinical laboratory staining and draining rack according to claim 1, characterized in that, The dyeing rack is made of stainless steel.