Reagent dissolving device for medical detection
By employing a dissolving cylinder inner wall structure with a transition between conical and arc-shaped surfaces, along with an annular stirring rack and sealing disc design, the problems of uneven reagent dissolution and poor sealing are solved, achieving efficient and uniform reagent dissolution and convenient aseptic collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEST CHINA HOSPITAL SICHUAN UNIV
- Filing Date
- 2026-03-24
- Publication Date
- 2026-05-01
AI Technical Summary
Existing reagent dissolution devices for medical testing suffer from problems such as poor dissolution uniformity, easy formation of dead zones, poor sealing, cumbersome collection operations, and difficulty in maintaining a sterile environment.
The dissolving cylinder features a smooth transition between a conical and an arc-shaped inner wall structure. Combined with a ring-shaped stirring rack, a sealing plate, and a guide hole design, it achieves uniform dissolution and sterile collection of reagents. Threaded and snap-fit connections ensure quick assembly and disassembly of the device.
It improves the uniformity of reagent dissolution, avoids reagent residue on the wall, ensures the sealing of the dissolution environment and the convenience of operation, and simplifies the cleaning and replacement process.
Smart Images

Figure CN224180718U_ABST
Abstract
Description
A reagent dissolving device for medical testing Technical Field
[0001] This utility model relates to the field of medical testing experimental equipment technology, and in particular to a reagent dissolving device for medical testing. Background Technology
[0002] In the field of medical testing, reagent dissolution devices are commonly used instruments for sample pretreatment. Existing devices mostly consist of a dissolution chamber, a stirring assembly, and a sealing structure. They achieve the mixing and dissolution of reagents and solvents through mechanical stirring and are widely used in reagent preparation stages such as clinical testing and biochemical experiments to provide a uniform reagent solution for subsequent testing.
[0003] Existing reagent dissolving devices for medical testing mostly have a cylindrical structure for their dissolving chambers. This makes it easy for dead corners to form on the inner wall, resulting in reagent residue adhering to the wall and poor dissolution uniformity. Furthermore, the mixing area is not well-suited to the chamber, and poorly soluble reagents tend to settle and clump at the bottom. At the same time, the dissolution and collection stages lack effective separation structures, making it easy for liquid to leak prematurely. The collection operation is cumbersome, and the sealing and disassembly structures of some devices are poorly designed, making it difficult to maintain a sterile dissolution environment and facilitating subsequent cleaning and component replacement. As a result, these devices fail to meet the requirements of medical testing for the accuracy and convenience of reagent dissolution.
[0004] Based on this, a reagent dissolution device for medical testing is proposed. Summary of the Invention
[0005] The purpose of this invention is to provide a reagent dissolving device for medical testing in order to solve the above-mentioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A reagent dissolving device for medical testing includes a dissolving cylinder, a sealing cap detachably connected to the upper end of the dissolving cylinder, a motor fixedly connected to the sealing cap, the output end of the motor passing through the sealing cap and connected to a stirring rack, a docking cover fixedly connected to the lower end of the dissolving cylinder, a collecting cylinder detachably connected to the lower end of the docking cover, a connecting column slidingly connected up and down inside the collecting cylinder, a sealing plate fixedly connected to the upper end of the connecting column, and a docking plate fixedly connected to the lower end, the collecting cylinder having multiple guide holes at the upper end, the sealing plate being adapted to the guide holes, and the inner wall of the dissolving cylinder having a conical surface and an arc surface.
[0008] Preferably, an exhaust valve is fixedly connected to the sealing cap, and the exhaust valve is in communication with the inside of the dissolving cylinder.
[0009] Preferably, a control button is fixedly connected to the sealing cover, and the control button is electrically connected to the motor to control the start and stop of the motor.
[0010] Preferably, a handle is fixedly connected to the lower end of the docking plate, and a disc groove adapted to the docking plate is opened at the lower end of the collecting cylinder.
[0011] Preferably, the conical surface is disposed on the upper part of the inner wall of the dissolving cylinder, and the arcuate surface is disposed on the lower part of the inner wall of the dissolving cylinder, with the conical surface and the arcuate surface smoothly transitioning and connecting.
[0012] Preferably, the plurality of flow guide holes are arranged around the upper end of the collection cylinder, and during sealing, the plurality of flow guide holes are arranged around the outside of the sealing disc.
[0013] Preferably, the stirring rack is a ring-shaped stirring structure, and its stirring range is located in the arc-shaped area inside the dissolving cylinder.
[0014] Preferably, the connection between the collecting cylinder and the docking cover is a threaded connection, and the connection between the sealing cover and the dissolving cylinder is a snap-fit connection.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0016] 1. This application eliminates dead corners in the cavity and reduces reagent residue by adopting a dissolving cylinder inner wall structure with a smooth transition between a conical and an arc-shaped surface. At the same time, the arc-shaped surface, together with the annular stirring rack, forms a vortex zone, which improves the uniformity of reagent dissolution and solves the problem of poor dissolution effect in existing devices.
[0017] 2. This application achieves effective isolation between the dissolution and collection stages by adopting a separation structure that matches the sealing plate and the guide hole, thus preventing premature liquid leakage. At the same time, the threaded connection between the collection cylinder and the docking cover, and the snap-fit connection between the sealing cover and the dissolution cylinder, not only ensure the sealing of the dissolution environment, but also enable quick disassembly and assembly of the device, facilitating cleaning and operation. This solves the problems of cumbersome collection and poor sealing and disassembly effects of existing devices. Attached Figure Description
[0018] Figure 1 shows a schematic diagram of the dissolving apparatus provided according to an embodiment of the present invention;
[0019] Figure 2 shows a schematic diagram of the connection of the stirring rack according to an embodiment of the present invention;
[0020] Figure 3 shows a schematic diagram of the flow guide hole provided according to an embodiment of the present invention;
[0021] Figure 4 shows a schematic diagram of the connection of the connecting column according to an embodiment of the present invention.
[0022] Legend:
[0023] 1. Dissolving cylinder; 2. Sealing cap; 3. Motor; 4. Exhaust valve; 5. Button; 6. Collection cylinder; 7. Stirring rack; 8. Connecting cover; 9. Connecting plate; 10. Handle; 11. Conical surface; 12. Arc-shaped surface; 13. Guide hole; 14. Sealing plate; 15. Connecting column. Detailed Implementation
[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Please refer to Figures 1-4. This utility model provides a technical solution:
[0026] A reagent dissolving device for medical testing includes a dissolving cylinder 1. A sealing cap 2 is detachably connected to the upper end of the dissolving cylinder 1. A motor 3 is fixedly connected to the sealing cap 2. The output end of the motor 3 passes through the sealing cap 2 and is connected to a stirring rack 7. A docking cover 8 is fixedly connected to the lower end of the dissolving cylinder 1. A collecting cylinder 6 is detachably connected to the lower end of the docking cover 8. A connecting column 15 is slidably connected up and down inside the collecting cylinder 6. A sealing plate 14 is fixedly connected to the upper end of the connecting column 15, and a docking plate 9 is fixedly connected to the lower end. A plurality of guide holes 13 are opened at the upper end of the collecting cylinder 6. The sealing plate 14 is adapted to the guide holes 13. A conical surface 11 and an arc surface 12 are provided on the inner wall of the dissolving cylinder 1. The conical surface 11 is used to guide the liquid to flow along the wall and reduce reagent residue. The arc surface 12 is used to form a vortex zone and enhance the mixing effect.
[0027] Specifically, as shown in Figure 1, an exhaust valve 4 is fixedly connected to the sealing cap 2. The exhaust valve 4 is connected to the inside of the dissolving cylinder 1. The exhaust valve 4 is a one-way exhaust valve 4, which can automatically discharge the gas in the cavity during the dissolving process to prevent excessive pressure from causing splashing. At the same time, it prevents outside air from entering and maintains a sterile environment in the cavity.
[0028] Specifically, as shown in Figure 1, a control button 5 is fixedly connected to the sealing cover 2. The control button 5 is electrically connected to the motor 3 to control the start and stop of the motor 3. The control button 5 can be set to multiple levels of adjustment to achieve the switching of different stirring speeds to adapt to the mixing requirements of different soluble reagents.
[0029] Specifically, as shown in Figure 2, a handle 10 is fixedly connected to the lower end of the docking plate 9, and a disc groove adapted to the docking plate 9 is opened at the lower end of the collecting cylinder 6. A sealing ring is provided on the inner wall of the disc groove. When the docking plate 9 is embedded in the disc groove, the bottom of the collecting cylinder 6 can be sealed to prevent liquid leakage.
[0030] Specifically, as shown in Figure 3, the conical surface 11 is set on the upper part of the inner wall of the dissolving cylinder 1, and the arc-shaped surface 12 is set on the lower part of the inner wall of the dissolving cylinder 1. The conical surface 11 and the arc-shaped surface 12 are smoothly connected. The smooth transition structure can avoid the formation of right-angle dead corners, reduce reagent residue, and at the same time make the liquid flow smoother and enhance the vortex formation effect.
[0031] Specifically, as shown in Figure 3, multiple guide holes 13 are arranged around the upper end of the collection cylinder 6. When sealing, the multiple guide holes 13 are arranged around the outside of the sealing disk 14. The upper surface of the sealing disk 14 is provided with a sealing gasket, which can fit tightly with the edge of the guide holes 13 to achieve complete sealing and prevent liquid from entering the collection cylinder 6 in advance during the dissolution process.
[0032] Specifically, as shown in Figure 2, the stirring rack 7 is a ring-shaped stirring structure, and its stirring range is located in the arc-shaped surface 12 area inside the dissolving cylinder 1. The ring-shaped stirring structure can cooperate with the arc-shaped surface 12 to form an up-and-down circulating liquid flow, which avoids the sedimentation and clumping of sparingly soluble reagents and improves the uniformity of dissolution.
[0033] Specifically, as shown in Figure 3, the collection cylinder 6 and the docking cover 8 are connected by a threaded connection. The threaded connection structure allows for quick disassembly and assembly, and has good sealing performance, making it easy to replace and clean the collection cylinder 6. The sealing cover 2 and the dissolving cylinder 1 are connected by a snap-fit connection. The snap-fit connection allows for quick opening and closing, making it convenient to add reagents and solvents, while ensuring the stability of the connection.
[0034] In summary, the working principle of the medical testing reagent dissolving device provided in this embodiment is as follows:
[0035] Dissolution stage:
[0036] The sealing cap 2 is fixed to the upper end of the dissolving cylinder 1 via a snap-fit connection. At this time, the sealing plate 14, supported by the docking plate 9, seals the guide hole 13 at the upper end of the collecting cylinder 6, preventing liquid from entering the collecting cylinder 6 prematurely. Reagents and solvents are added to the dissolving cylinder 1. The liquid slides down the conical surface 11 and enters the vortex zone formed by the arc surface 12. The motor 3 is started via the control button 5, driving the stirring rack 7 to perform circular stirring in the arc surface 12 area, forming an up-and-down circulating liquid flow to fully dissolve the reagents. During this process, the single-way exhaust valve 4 automatically discharges the gas inside the chamber, maintaining pressure balance and preventing outside air from entering, ensuring a sterile environment.
[0037] Collection phase:
[0038] After dissolution is complete, pull down the connecting plate 9 using the handle 10, causing the connecting column 15 and the sealing plate 14 to move downwards, releasing the seal of the sealing plate 14 from the guide hole 13. The dissolved liquid flows into the collection cylinder 6 through the guide hole 13, achieving liquid collection. After collection, the collection cylinder 6 can be quickly disassembled via the threaded connection for subsequent testing or treatment of the internal liquid, while also facilitating the cleaning and maintenance of the device.
[0039] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A reagent dissolving device for medical testing, comprising a dissolving cylinder (1), characterized in that, The upper end of the dissolving cylinder (1) is detachably connected to a sealing cover (2), and a motor (3) is fixedly connected to the sealing cover (2). The output end of the motor (3) passes through the sealing cover (2) and is connected to a stirring rack (7). The lower end of the dissolving cylinder (1) is fixedly connected to a docking cover (8), and the lower end of the docking cover (8) is detachably connected to a collecting cylinder (6). The collecting cylinder (6) is slidably connected to a connecting column (15). The upper end of the connecting column (15) is fixedly connected to a sealing plate (14), and the lower end is fixedly connected to a docking plate (9). The upper end of the collecting cylinder (6) is provided with multiple guide holes (13). The sealing plate (14) is adapted to the guide holes (13). The inner wall of the dissolving cylinder (1) is provided with a conical surface (11) and an arc surface (12).
2. The reagent dissolving device for medical testing according to claim 1, characterized in that, An exhaust valve (4) is fixedly connected to the sealing cap (2), and the exhaust valve (4) is connected to the inside of the dissolving cylinder (1).
3. The reagent dissolving device for medical testing according to claim 1, characterized in that, A control button (5) is fixedly connected to the sealing cover (2). The control button (5) is electrically connected to the motor (3) to control the start and stop of the motor (3).
4. The reagent dissolving device for medical testing according to claim 1, characterized in that, The lower end of the docking plate (9) is fixedly connected to a handle (10), and the lower end of the collecting cylinder (6) is provided with a disc groove that is compatible with the docking plate (9).
5. The reagent dissolving device for medical testing according to claim 1, characterized in that, The conical surface (11) is disposed on the upper part of the inner wall of the dissolving cylinder (1), and the arc-shaped surface (12) is disposed on the lower part of the inner wall of the dissolving cylinder (1). The conical surface (11) and the arc-shaped surface (12) are smoothly connected.
6. The reagent dissolving device for medical testing according to claim 1, characterized in that, Multiple flow guide holes (13) are arranged around the upper end of the collection cylinder (6). When sealing, multiple flow guide holes (13) are arranged around the outside of the sealing disc (14).
7. The reagent dissolving device for medical testing according to claim 1, characterized in that, The stirring rack (7) is a ring-shaped stirring structure, and its stirring range is located in the arc-shaped surface (12) area inside the dissolving cylinder (1).
8. The reagent dissolving device for medical testing according to claim 1, characterized in that, The collection tube (6) is connected to the docking cover (8) by a threaded connection, and the sealing cover (2) is connected to the dissolving tube (1) by a snap-fit connection.