Pathological specimen treatment device

Abstract

The utility model relates to the technical field of sample detection, in particular to a pathological specimen treatment device which comprises an upper solution bottle assembly, a piston assembly and a lower sampling bottle assembly, the upper solution bottle assembly comprises a solution bottle body, the piston assembly comprises a piston rod, a drainage part and a sealing plate, the drainage part is provided with a through hollow channel, and when the piston assembly is located at a pressing station, the drainage part partially extends out of the drainage channel; the lower sampling bottle assembly comprises a sampling bottle body, a sampling cavity used for storing a sample is formed in the sampling bottle body, an opening of the sampling cavity faces the drainage passage, and when the piston assembly is located at a pressing station, the hollow passage is communicated with the solution cavity and the sampling cavity, so that direct fixation after sampling is realized, and the sampling effect is good. Meanwhile, a pressing type liquid release mode is adopted, it is ensured that the solution directionally flows into the sampling cavity only during pressing, and leakage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of sample detection technology, specifically to a pathological specimen processing device. Background Technology

[0002] The pathological biopsy specimens obtained by patients through gastroscopy and colonoscopy are very important, as they are related to the nature of the lesion, surgical options, medication methods, etc. The traditional procedure is to place the biopsy tissue obtained by forceps on filter paper and then place the biopsy tissue in a pathology bottle containing formalin. However, in this process, on the one hand, there is a possibility that the biopsy tissue will fall to the ground, which will lead to a decrease in the accuracy of the test. On the other hand, formalin leakage during the dripping of the solution will cause contamination of the treatment area. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a pathological specimen processing device to improve the accuracy of biopsy tissue testing and prevent formalin leakage.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a pathological specimen processing device, including: an upper solution bottle assembly, a piston assembly, and a lower sampling bottle assembly;

[0006] The upper solution bottle assembly includes a solution bottle body, the solution bottle body having a solution cavity for containing solution and a drain passage through the solution cavity, and the piston assembly being disposed in the drain passage and moving axially along the drain passage;

[0007] The piston assembly includes a piston rod, a drain section, and a sealing plate. The drain section and the sealing plate are sequentially disposed at one end of the piston rod. The diameter of the drain section is larger than the diameter of the piston rod and has a through hollow channel. A filter screen is disposed inside the hollow channel. The piston assembly has a pressing position and an initial position. When the piston assembly is in the initial position, the sealing plate closes the drain path. When the piston assembly is in the pressing position, the drain section partially protrudes out of the drain path.

[0008] The lower sampling bottle assembly includes a sampling bottle body, which is threadedly connected to the solution bottle body. The sampling bottle body has a sampling cavity for storing samples inside. The opening of the sampling cavity faces the drainage path. When the piston assembly is in the pressing position, the hollow channel connects the solution cavity and the sampling cavity.

[0009] In some embodiments, the upper solution bottle assembly further includes a cap body, which is disposed at one end of the solution bottle body away from the sampling bottle body and is used to close the solution cavity. The cap body is also provided with a clearance hole for avoiding the piston rod, and the piston rod extends out of the clearance hole at one end away from the sealing plate.

[0010] In some embodiments, the piston assembly further includes a pressing portion disposed at one end of the piston rod portion that protrudes from the clearance hole.

[0011] In some embodiments, the pressing part includes a pressing cap and a connecting section. The diameter of the connecting section is larger than the diameter of the clearance hole and has a first end and a second end that are far apart from each other. The first end is connected to the piston rod, and the second end is connected to the pressing cap. The distance between the first end and the bottle cap body is a first distance, and the distance between the sealing plate and the end of the leakage path near the sampling chamber is a second distance. The first distance is greater than the second distance and less than the length of the leakage part along the axial direction of the piston rod.

[0012] In some embodiments, the bottom of the sampling bottle body is provided with a barbed structure, wherein the barbed structure is a triangular protrusion with its tip facing the solution bottle body.

[0013] In some embodiments, the length of the threaded connection section between the upper solution bottle assembly and the lower sampling bottle assembly is 0.8-1.2 cm.

[0014] In some embodiments, the sealing plate is made of elastic silicone material, and its diameter is larger than the inner diameter of the leakage passage to achieve an interference seal.

[0015] In some embodiments, the mesh diameter of the filter screen is less than 0.5 mm.

[0016] In some embodiments, the filter screen is made of stainless steel and can be detachably installed in the hollow channel via a snap-fit ​​structure.

[0017] In some embodiments, the inner wall of the solution chamber is coated with a corrosion-resistant coating.

[0018] Furthermore, the beneficial effects of this application are as follows:

[0019] The pathological specimen processing device of this application achieves direct fixation after sampling by connecting the upper solution bottle assembly and the lower sampling bottle assembly through a threaded connection, avoiding the risk of specimen transfer. At the same time, this application adopts a press-type liquid release method to ensure that the solution flows into the sampling chamber only when pressed, preventing leakage. In addition, the hollow channel in the piston assembly integrates a filter screen, which filters out impurities in the solution as it enters the lower sampling bottle assembly, ensuring the purity of the solution and improving the accuracy of subsequent pathological analysis. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of the pathological specimen processing device provided by this utility model;

[0021] Figure 2 Exploded cross-sectional view of the upper solution bottle assembly, bottle cap body, and lower sampling bottle assembly in the pathological specimen processing device provided by this utility model;

[0022] Figure 3 A schematic diagram showing the structural cooperation between the piston assembly and the filter screen in the pathological specimen processing device provided by this utility model;

[0023] Figure 4 A schematic diagram of the sampling bottle body in the pathological specimen processing device provided by this utility model;

[0024] Figure 5 A schematic diagram of the bottle cap body in the pathological specimen processing device provided by this utility model.

[0025] In the diagram: 1-Solution bottle body, 11-Solution chamber, 12-Drainage path, 2-Sampling bottle body, 21-Sampling chamber, 22-Barbed structure, 3-Bottle cap body, 31-Allowing hole, 4-Piston rod, 41-Press cap, 42-Connecting section, 43-Drainage part, 44-Sealing plate, 5-Filter screen. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more. Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0027] like Figures 1-3 As shown, this embodiment of the present invention provides a pathological specimen processing device, including: an upper solution bottle assembly, a piston assembly, and a lower sampling bottle assembly;

[0028] The upper solution bottle assembly includes a solution bottle body 1, a solution cavity 11 for containing solution and a drain passage 12 that passes through the solution cavity 11, and a piston assembly disposed in the drain passage 12 and moving axially along the drain passage 12.

[0029] The piston assembly includes a piston rod 4, a drain section 43, and a sealing plate 44. The drain section 43 and the sealing plate 44 are sequentially arranged at one end of the piston rod 4. The diameter of the drain section 43 is larger than the diameter of the piston rod 4 and has a through hollow channel. A filter screen 5 is installed inside the hollow channel. The piston assembly has a pressing position and an initial position. When the piston assembly is in the initial position, the sealing plate 44 closes the drain passage 12. When the piston assembly is in the pressing position, the drain section 43 partially protrudes from the drain passage 12. The lower sampling bottle assembly includes a sampling bottle body 2, which is threadedly connected to the solution bottle body 1. The sampling bottle body 2 has a sampling cavity 21 for storing samples. The opening of the sampling cavity 21 faces the drain passage 12. When the piston assembly is in the pressing position, the hollow channel connects the solution cavity 11 and the sampling cavity. In the above structure, the solution cavity 11 inside the solution bottle body 1 can hold various test reagents. However, for the convenience of the following description, this application only uses formalin solution as an example. After the medical staff takes the sample to be tested from the patient's body, the sample to be tested is stored inside the sampling bottle. At this time, the piston assembly is in the initial working position, the sealing plate 44 closes the leakage passage 12, and the formalin solution is sealed in the solution cavity 11. When the medical staff presses the piston assembly, the piston rod 4 drives the leakage part 43 to move down. When the sealing plate 44 is separated from the leakage passage 12, the hollow channel connects the solution cavity 11 and the sampling cavity 21. The formalin solution flows into the sampling cavity 21 through the filter screen 5, thereby completing the processing of the pathological specimen. There is no leakage of formalin solution in the whole process, which ensures the safety of the processing.

[0030] In one possible implementation, please refer to Figures 2-5 As shown, the upper solution bottle assembly also includes a cap body 3. The cap body 3 is located at the end of the solution bottle body 1 away from the sampling bottle body 2 and is used to seal the solution chamber 11. The cap body 3 is also provided with a clearance hole 31 for avoiding the piston rod 4. The end of the piston rod 4 away from the sealing plate 44 protrudes from the clearance hole 31. In the above structure, the cap body 3 can improve the airtightness of the solution bottle body 1. At the same time, the piston assembly also includes a pressing part, which is located at the end of the piston rod 4 that protrudes from the clearance hole 31, so that the user can press the piston rod 4.

[0031] In this embodiment, the pressing part includes a pressing cap 41 and a connecting section 42. The diameter of the connecting section 42 is larger than the diameter of the clearance hole 31 and has a first end and a second end that are far apart from each other. The first end is connected to the piston rod 4, and the second end is connected to the pressing cap 41. The distance between the first end and the bottle cap body 3 is the first distance. The distance between the sealing plate 44 and the end of the leakage passage 12 near the sampling chamber 21 is the second distance. The first distance is greater than the second distance and less than the length of the leakage part 43 in the axial direction along the piston rod 4. During the pressing process, anti-slip textures can be added to the surface of the pressing cap 41 to improve the stability of operation. At the same time, the connecting section 42 contacts and limits the bottle cap to ensure that the leakage part 43 will not fall off completely from the inside of the leakage passage 12. This ensures that the formalin solution is filtered by the filter screen 5 when it enters the sampling chamber 21, further ensuring the purity of the formalin solution. On the other hand, the filter screen 5 also prevents blood clots and other impurities inside the sampling chamber 21 from entering the solution bottle body 1, ensuring the cleanliness of the liquid bottle body inside when used next time.

[0032] In one possible implementation, the length of the threaded connection section 42 between the upper solution bottle assembly and the lower sampling bottle assembly is 0.8-1.2 cm, preferably 1 cm in this application. However, the length of the threaded connection section 42 can be changed by those skilled in the art according to actual needs. This application does not make a specific limitation on this. The 1 cm length of the threaded connection section 42 effectively reduces the volume of the device.

[0033] In one possible implementation, please refer to Figures 2-5 As shown, the sealing plate 44 is made of elastic silicone, and its diameter is larger than the inner diameter of the leakage passage 12 to achieve an interference seal. The bottom of the sampling bottle body 2 is provided with a barbed structure 22, which is a triangular protrusion with its tip facing the solution bottle body 1. The filter screen 5 is made of stainless steel with a mesh diameter of less than 0.5 mm, and can be detachably installed in the hollow channel through a snap-fit ​​structure. When using the device, the operator first uses the barbs to hook the tissue sample on the biopsy forceps, and then tightens the upper solution bottle body 1 and the lower sampling bottle body 2. At this point, the piston assembly is in its initial position, with the sealing plate 44 tightly against the lower end of the drain passage 12. The formalin in the solution chamber 11 is completely sealed. When the pressing cap 41 is pressed down, the piston rod 4 moves the drain section 43 downward, disengaging the sealing plate 44 from the drain passage 12. The hollow channel of the drain section 43 crosses the drain passage 12, allowing the formalin to flow into the sampling chamber 21 through the filter screen 5. The filter screen 5 can intercept blood clots or impurities. After fixing, the upper and lower assemblies are separated by reverse rotation, allowing the sampling bottle to be directly sent to the laboratory without transferring the specimen. Furthermore, the filter screen 5 can be replaced by pinching the edge and pulling it outward to adapt to different specimen needs, such as replacing it with a 0.1mm nylon filter screen. This application does not make specific limitations on this.

[0034] It is worth noting that the tilt angle of the barb structure 22 is 40°-60°, and 60° is preferred in this application. The rounded transition at the tip avoids scratching the operator and also makes it easier for the operator to remove the tissue to be tested from the barb structure 22. Based on this, the shape of the barb structure 22 can also be changed according to actual needs, such as a fishhook-shaped structure with barbs, or a triangular or multi-faceted arrow-shaped structure. This application does not make specific limitations on this, but the deformation of these structures is also within the protection scope of this application.

[0035] In one possible implementation, the inner wall of the solution chamber 11 is coated with a corrosion-resistant coating. The corrosion-resistant coating of the solution chamber 11, combined with the interference seal design of the silicone sealing plate 44, extends the service life of the device.

[0036] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A pathological specimen processing device, characterized in that, include: Upper solution bottle assembly, piston assembly, lower sampling bottle assembly; The upper solution bottle assembly includes a solution bottle body, the solution bottle body having a solution cavity for containing solution and a drain passage through the solution cavity, and the piston assembly being disposed in the drain passage and moving axially along the drain passage; The piston assembly includes a piston rod, a drain section, and a sealing plate. The drain section and the sealing plate are sequentially disposed at one end of the piston rod. The diameter of the drain section is larger than the diameter of the piston rod and has a through hollow channel. A filter screen is disposed inside the hollow channel. The piston assembly has a pressing position and an initial position. When the piston assembly is in the initial position, the sealing plate closes the drain path. When the piston assembly is in the pressing position, the drain section partially protrudes out of the drain path. The lower sampling bottle assembly includes a sampling bottle body, which is threadedly connected to the solution bottle body. The sampling bottle body has a sampling cavity for storing samples inside. The opening of the sampling cavity faces the drainage path. When the piston assembly is in the pressing position, the hollow channel connects the solution cavity and the sampling cavity.

2. The pathological specimen processing device as described in claim 1, characterized in that, The upper solution bottle assembly also includes a bottle cap body, which is disposed at the end of the solution bottle body away from the sampling bottle body and is used to seal the solution cavity. The bottle cap body is also provided with a clearance hole for avoiding the piston rod, and the end of the piston rod away from the sealing plate protrudes out of the clearance hole.

3. The pathological specimen processing device as described in claim 2, characterized in that, The piston assembly further includes a pressing part, which is disposed at one end of the piston rod portion that protrudes from the clearance hole.

4. The pathological specimen processing device as described in claim 3, characterized in that, The pressing part includes a pressing cap and a connecting section. The diameter of the connecting section is larger than the diameter of the clearance hole and has a first end and a second end that are far apart from each other. The first end is connected to the piston rod, and the second end is connected to the pressing cap. The distance between the first end and the bottle cap body is a first distance, and the distance between the sealing plate and the end of the leakage path near the sampling chamber is a second distance. The first distance is greater than the second distance and less than the length of the leakage part along the axial direction of the piston rod.

5. The pathological specimen processing device as described in claim 1, characterized in that, The bottom of the sampling bottle body is provided with a barbed structure, which is a triangular protrusion with the tip facing the solution bottle body.

6. The pathological specimen processing device as described in claim 1, characterized in that, The length of the threaded connection section between the upper solution bottle assembly and the lower sampling bottle assembly is 0.8-1.2 cm.

7. The pathological specimen processing device as described in claim 1, characterized in that, The sealing plate is made of elastic silicone material, and its diameter is larger than the inner diameter of the leakage passage to achieve an interference seal.

8. The pathological specimen processing device as described in claim 1, characterized in that, The mesh diameter of the filter screen is less than 0.5 mm.

9. The pathological specimen processing apparatus as described in claim 8, characterized in that, The filter screen is made of stainless steel and can be detachably installed in the hollow channel via a snap-fit ​​structure.

10. The pathological specimen processing apparatus as described in claim 1, characterized in that, The inner wall of the solution chamber is coated with a corrosion-resistant coating.

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