Slide dyeing device

By designing a staining device with a separator and water-permeable holes, the problem of uneven staining of glass slides was solved, and complete staining and efficient operation of glass slides were achieved.

CN224066458UActive Publication Date: 2026-03-31BEIJING OBSTETRICS & GYNECOLOGY HOSPITAL CAPITAL MEDICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing slide staining devices are prone to uneven staining when staining multiple slides simultaneously, resulting in incomplete staining of the samples.

Method used

A slide staining device was designed, including a bottom support, a stainer, and an operating handle. The stainer has a partition plate inside that divides it into multiple staining chambers. Each staining chamber has a mounting frame and a water permeable hole. By rotating the operating handle, the staining chamber is rotated, so that the staining solution can quickly soak the sample under centrifugal force.

Benefits of technology

Complete staining of the slides was achieved, improving staining efficiency and uniformity, and ensuring complete staining of the samples.

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Abstract

The utility model belongs to the technical field of medical examination, and particularly relates to a slide dyeing device which comprises a bottom support, a dyeing device and an operating handle. One end of the dyeing device is rotationally connected with the bottom bracket, and the other end is detachably connected with the operating handle; the dyeing device comprises a rotating bin; the interior of the rotating bin is divided into at least two dyeing cavities by a partition plate; each dyeing cavity is provided with an opening; a cover body is detachably connected to the opening; the interior of the dyeing cavity is detachably connected with a mounting frame; and at least two slide brackets are arranged in the mounting rack. The device has the beneficial effects that when the device is used, a slide carrying a sample is placed on the mounting frame, then the mounting frame is implanted into the dyeing cavity, proper dyeing liquid is injected into the dyeing cavity, then the cover body is used for blocking the opening, finally the operating handle is rotated to drive the dyeing bin to rotate, and the dyeing liquid penetrates through the space between the slide and the cover glass under the action of centrifugal force; the sample is quickly soaked in the staining solution, and the complete staining of the sample is realized.
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Description

Technical Field

[0001] This utility model belongs to the field of medical testing technology, specifically relating to a glass slide staining device. Background Technology

[0002] There are two main ways to observe microorganisms: one is to observe colony characteristics after culturing, and the other is to observe them under a microscope. Laboratory observation of microorganisms usually requires staining before microscopic observation. Common staining methods include simple staining, negative staining, Gram staining, spore staining, flagella staining, capsule staining, and live / dead staining. Preparing bacterial stain slides generally involves steps such as smearing, fixation, staining, washing, and drying, followed by observation under a microscope or even an oil immersion microscope.

[0003] In medical testing, it is necessary to frequently stain glass slides containing samples. In order to improve work efficiency, it is often necessary to stain multiple glass slides at the same time.

[0004] Although the staining racks currently in use can stain multiple slides simultaneously, the slides are fixed horizontally on the staining plate, which can easily lead to uneven soaking of the staining solution during the staining process, resulting in incomplete staining of the samples.

[0005] This invention addresses the aforementioned problems by providing a glass slide staining device. Utility Model Content

[0006] To address the aforementioned issues, this application discloses a slide staining apparatus.

[0007] A slide staining apparatus includes a bottom support, a stainer, and an operating handle; one end of the stainer is rotatably connected to the bottom support, and the other end is detachably connected to the operating handle; the stainer includes a rotating chamber; the interior of the rotating chamber is divided into at least two staining chambers by a partition plate; each staining chamber has an opening; a cover is detachably connected to the opening; a mounting frame is detachably connected to the interior of the staining chamber; and at least two slide supports are provided inside the mounting frame.

[0008] Furthermore, the mounting bracket has at least two water-permeable holes on its side wall.

[0009] Furthermore, a central shaft is provided at the center of the rotating chamber; one end of the central shaft is rotatably connected to the bottom support, and the other end is detachably connected to the operating handle.

[0010] Furthermore, the side wall of the central shaft is provided with an insertion hole; one end of the cover is detachably connected to the insertion hole, and the other end is detachably connected to the rotating chamber.

[0011] Furthermore, one end of the central shaft is provided with a first mounting hole and the other end is provided with a second mounting hole; the first mounting hole is detachably connected to the operating handle; the second mounting hole is rotatably connected to the bottom bracket.

[0012] Furthermore, the outer wall of the rotating chamber is provided with a drain outlet; the drain outlet is connected to the dyeing chamber; the number of drain outlets is the same as the number of dyeing chambers; and a sealing plug is detachably connected to the drain outlet.

[0013] Furthermore, the rotating chamber has a regular columnar structure; the staining chambers are arranged in a circle around the axis of the rotating chamber.

[0014] Furthermore, the axis of the staining chamber is parallel to the axis of the rotating chamber.

[0015] Furthermore, the dyeing chamber is equipped with a dyeing sleeve inside; the dyeing sleeve is wrapped around the outside of the mounting frame.

[0016] Furthermore, the bottom support includes a positioning plate and a rotating shaft; one end of the rotating shaft is fixedly connected to the positioning plate, and the other end is rotatably connected to the rotating chamber.

[0017] The beneficial effects of this utility model are as follows: When in use, place the glass slide containing the sample on the mounting frame, then insert the mounting frame into the staining chamber, and inject a suitable staining solution into the staining chamber. Then, use the cover to seal the opening, and finally turn the operating handle to drive the staining chamber to rotate. Under the action of centrifugal force, the staining solution passes between the glass slide and the coverslip, so that the staining solution quickly soaks the sample and achieves complete staining of the sample. Attached Figure Description

[0018] Figure 1 A perspective view of a slide staining apparatus for implementing this utility model;

[0019] Figure 2 A front view of a slide staining apparatus for implementing this utility model;

[0020] Figure 3 for Figure 2 Sectional view of type AA;

[0021] Figure 4 A perspective view of a mounting bracket that implements this utility model;

[0022] Figure 5 A front view of a dyeing apparatus that implements this utility model;

[0023] Figure 6 for Figure 5 BB-direction sectional view;

[0024] Figure 7 A perspective view of a dyeing apparatus that implements this utility model;

[0025] In the diagram, 1. Bottom support; 2. Staining apparatus; 3. Operating handle; 21. Sealing plug; 22. Rotating chamber; 23. Cover; 24. Divider plate; 25. Mounting bracket; 26. Central shaft; 31. Turntable; 32. Connecting rod; 221. Drain outlet; 231. Pin; 251. Slide holder; 252. Water permeable hole; 261. First mounting hole; 262. Second mounting hole; 263. Insertion hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0028] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0029] In this document, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this document, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figure 1-7 The slide staining apparatus shown includes a bottom support 1, a stainer 2, and an operating handle 3. One end of the stainer 2 is rotatably connected to the bottom support 1, and the other end is detachably connected to the operating handle 3. The stainer 2 includes a rotating chamber 22. The interior of the rotating chamber 22 is divided into at least two staining chambers by a partition plate 24. Each staining chamber has an opening. A cover 23 is detachably connected to the opening. A mounting frame 25 is detachably connected to the interior of the staining chamber. Multiple slide supports 251 are provided inside the mounting frame 25.

[0032] In use, place the glass slide containing the sample on the mounting frame 25, then insert the mounting frame 25 into the staining chamber, and inject the appropriate staining solution into the staining chamber. Then, use the cover 23 to seal the opening, and finally turn the operating handle 3 to drive the staining chamber to rotate. Under the action of centrifugal force, the staining solution passes between the glass slide and the coverslip, so that the staining solution quickly soaks the sample and achieves complete staining of the sample.

[0033] like Figure 2 As shown, a drain outlet 221 is provided on the outer wall of the rotating chamber 22, and a sealing plug 21 is detachably connected to the drain outlet 221.

[0034] The operating handle 3 includes a turntable 31 and a connecting rod 32; one end of the connecting rod 32 is rotatably connected to the turntable 31, and the other end is detachably connected to the rotating chamber 22. The axis of the turntable 31 coincides with the axis of the connecting rod 32. Specifically, when the connecting rod 32 is connected to the rotating chamber 22, the axis of the connecting rod 32 coincides with the axis of the rotating chamber 22.

[0035] Combination Figure 1-2 It can be seen that the connecting rod 32 is a rod-shaped object with a non-circular cross-section, so that when the turntable 31 drives the connecting rod 32 to rotate, the connecting rod 32 can drive the rotating chamber 22 to rotate synchronously.

[0036] In some embodiments of this application, the connecting rod 32 is a rod-shaped object with a circular cross-section. The side wall of the connecting end of the connecting rod 32 and the rotating chamber 22 is provided with a protrusion, and the rotating chamber 22 is provided with a groove that is detachably connected to the protrusion, so that the connecting rod 32 can rotate synchronously with the rotating chamber 22.

[0037] Alternatively, the connecting rod 32 is a rod-shaped object with a circular cross-section. The side wall of the connecting end of the connecting rod 32 and the rotating chamber 22 is provided with a groove. The rotating chamber 22 is provided with a protrusion that can be detachably connected to the protrusion, so that the connecting rod 32 can rotate synchronously with the rotating chamber 22.

[0038] like Figure 3As shown, drain outlet 221 is connected to the staining chamber; the number of drain outlets 221 is the same as the number of staining chambers. During staining, sealing plugs 21 are used to seal drain outlets 221 to prevent staining solution leakage. After staining, sealing plugs 21 are removed from drain outlets 221, allowing the staining solution inside the staining chamber to flow out through drain outlets 221.

[0039] A central shaft 26 is provided at the center of the rotating chamber 22; one end of the central shaft 26 is rotatably connected to the bottom bracket 1, and the other end is detachably connected to the operating handle 3.

[0040] The central shaft 26 has an insertion hole 263 on its side wall; one end of the cover 23 is detachably connected to the insertion hole 263, and the other end is detachably connected to the rotating chamber 22. Specifically, the rotating chamber 22 has a positioning groove on its side wall, one side of the cover 23 has a positioning block detachably connected to the positioning groove, and the other end has an insert detachably connected to the insertion hole 263. In use, the insert is first inserted into the insertion hole 263, and then the positioning block is inserted into the positioning groove, thus installing the cover 23 onto the rotating chamber 22.

[0041] The bottom support 1 includes a positioning plate and a rotating shaft; one end of the rotating shaft is fixedly connected to the positioning plate, and the other end is rotatably connected to the rotating chamber 22. The axis of the rotating shaft coincides with the axis of the rotating chamber 22, allowing the rotating chamber 22 to rotate around the rotating shaft under the drive of the operating handle 3.

[0042] like Figure 4 As shown, the mounting bracket 25 has five slide supports 251 inside. The five slide supports 251 are evenly arranged along a straight line inside the mounting bracket 25.

[0043] Furthermore, the side wall of the mounting frame 25 is provided with at least two water-permeable holes 252, so that the staining solution can enter the interior of the mounting frame 25 through the water-permeable holes 252, thereby completely immersing the sample in the staining solution.

[0044] Specifically, the water-permeable holes 252 are evenly distributed on the side wall of the mounting bracket 25.

[0045] like Figure 5-6 As shown, one end of the central shaft 26 is provided with a first mounting hole 261 and the other end is provided with a second mounting hole 262; the first mounting hole 261 is detachably connected to the operating handle 3; the second mounting hole 262 is rotatably connected to the bottom bracket 1.

[0046] like Figure 7 As shown, the rotating chamber 22 has a regular columnar structure; the staining chambers are arranged in a circle around the axis of the rotating chamber 22. The rotating chambers 22 have the same volume.

[0047] The axis of the staining chamber is parallel to the axis of the rotating chamber 22.

[0048] In some embodiments of this application, a dyeing sleeve is provided inside the dyeing chamber; the dyeing sleeve is wrapped around the outside of the mounting frame 25.

[0049] The staining sleeve is a disposable consumable. To use, place the staining sleeve inside the staining chamber, then insert the mounting bracket 25 with the slides inside the staining sleeve, and add the staining solution. After staining, remove the staining sleeve and staining solution simultaneously. The next batch of slides can be stained without cleaning the staining chamber.

[0050] The above description is merely a specific embodiment of this application. Under the guidance of the above teachings, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this application, and the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A slide staining apparatus comprising a base support, a stainer, and an operating handle, wherein, One end of the dyeing device is rotationally connected with the bottom support, and the other end is detachably connected with the operating handle; the dyeing device comprises a rotating bin; the inside of the rotating bin is divided into at least two dyeing cavities by a partition plate; each dyeing cavity is provided with an opening; a cover is detachably connected on the opening; an installation frame is detachably connected in the dyeing cavity; at least two slide supports are arranged in the installation frame.

2. The slide staining apparatus of claim 1, wherein At least two water-permeable holes are arranged on the side wall of the installation frame.

3. The slide staining apparatus of claim 1, wherein, A central shaft is arranged at the shaft center of the rotating bin; one end of the central shaft is rotationally connected with the bottom support, and the other end is detachably connected with the operating handle.

4. The slide staining apparatus of claim 3, wherein A bushing is arranged on the side wall of the central shaft; one end of the cover is detachably connected with the bushing, and the other end is detachably connected with the rotating bin.

5. The slide staining apparatus of claim 3, wherein the slide rack is configured to receive a plurality of slides, and the slide rack is configured to rotate the plurality of slides about the axis of rotation. One end of the central shaft is provided with a first installation hole, and the other end is provided with a second installation hole; the first installation hole is detachably connected with the operating handle; the second installation hole is rotationally connected with the bottom support.

6. The slide staining apparatus of claim 1, wherein, A drain port is arranged on the outer wall of the rotating bin; the drain port is communicated with the dyeing cavity; the number of the drain ports is the same as that of the dyeing cavities; a sealing plug is detachably connected on the drain port.

7. The slide staining apparatus of claim 1, wherein The rotating bin is a regular columnar structure; the dyeing cavities are arranged in a circle with the axis of the rotating bin as the center.

8. The slide staining apparatus of claim 1, wherein, The axis of the dyeing cavity is parallel to the axis of the rotating bin.

9. The slide staining apparatus of claim 1, wherein, A dyeing sleeve is arranged in the dyeing cavity; the dyeing sleeve is wrapped outside the installation frame.

10. The slide staining apparatus of any one of claims 1-9, wherein, The bottom support comprises a positioning disc and a rotating shaft; one end of the rotating shaft is fixedly connected with the positioning disc, and the other end is rotationally connected with the rotating bin.