An endoscopic mucosal resection specimen pathological auxiliary sampling tool

Abstract

The utility model belongs to medical apparatus and instruments, concretely relates to a kind of pathological auxiliary material taking tool of endoscopic mucosal resection specimen, including total connecting plate and comb plate;The side of total connecting plate is connected comb plate;Comb plate is composed of several parallel straight boards, the width of each straight board is less than target material taking width;The distance between the upper edge of the n-1th straight board to the upper / lower edge of the nth straight board is equal to the distance between the upper / lower edge of the nth straight board to the upper / lower edge of the n+1th straight board, and the distance between the upper / lower edge of the n-1th straight board to the upper / lower edge of the nth straight board is equal to target material taking width, wherein, n is natural number greater than 1 and less than total number N.Compared with prior art, the utility model solves the problem that it is difficult to control the cutting size and easy to cause specimen contamination when cutting specimen into mucosal strips in prior art.The tool of the present scheme can effectively assist cutting positioning and control the cutting size.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to a pathological auxiliary sampling tool for endoscopic mucosal resection specimens. Background Technology

[0002] Endoscopic submucosal dissection is a new treatment method that has emerged in recent years and is a technology with good clinical application prospects. It can allow more early tumors to be completely removed endoscopically in one go, avoiding the pain of open surgery and organ removal. Before endoscopic submucosal dissection, specimen sampling is required to determine its nature. Therefore, the pathology department has a lot of endoscopic submucosal resection / dissection specimens (EMR / ESD specimens).

[0003] Currently, when processing these specimens, pathologists typically stain the specimen base and cutting edges with ink, then cut the specimen into strips of a specified width using a scalpel. Following this, they perform embedding, dehydration, and slide preparation. Finally, the pathologist reviews the slides to determine the type and extent of the lesion and whether the cutting edges involve the lesion. Regarding the step of cutting the specimen into strips of a specified width, the required width is relatively small, usually around 2-4 mm. However, most pathologists currently rely on experience-based estimation for cutting, which leads to uneven mucosal strip sizes and ultimately significant errors in estimating lesion size. Additionally, some pathologists print grids on paper with intervals matching the specified width and then place the mucosa on the grid paper for sampling. However, this method is prone to paper damage and specimen contamination during actual operation.

[0004] The prior art CN212807662U discloses a pathological sampling instrument for processing ESD specimens from endoscopic submucosal dissection. This design integrates the sampling knife and anvil into one unit. In use, the specimen to be cut is placed on the anvil, and the sampling knife is rotated to cut the specimen. However, with this design: 1) the handheld part is very close to the sampling knife, which can easily cause accidental injury to the user and contaminate the instrument and the specimen; 2) there is no fixing or limiting structure after the specimen is placed on the anvil, which makes it easy for the sampling knife to slip and deform when it is pressed down to cut, making it difficult to control the size of the cut mucosal strips and easily resulting in cut damage. Utility Model Content

[0005] The purpose of this invention is to provide a pathological auxiliary sampling tool for endoscopic mucosal resection specimens, addressing at least one of the aforementioned problems. This tool solves the issues of difficulty in controlling cutting size and easy specimen contamination when cutting specimens into mucosal strips in existing technologies. The tool in this solution can effectively assist in cutting positioning and control the cutting size.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A pathological aid for obtaining endoscopic mucosal resection specimens, comprising a common connecting plate and a comb-like plate;

[0008] The side of the main connecting plate is connected to a comb-shaped plate;

[0009] The comb-shaped plate is composed of several parallel straight plates, and the width of each straight plate is smaller than the target material width.

[0010] The distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is equal to the distance between the top edge of the nth straight plate and the top edge of the (n+1)th straight plate, and the distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is equal to the target material width, where n is a natural number greater than 1 and less than the total number of plates N; and / or,

[0011] The distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is equal to the distance between the bottom edge of the nth straight plate and the bottom edge of the (n+1)th straight plate, and the distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is equal to the target material width, where n is a natural number greater than 1 and less than the total number of plates N.

[0012] Preferably, the cross-section of the main connecting plate is rectangular, and each straight plate in the comb-shaped plate is connected to the side of the main connecting plate.

[0013] Preferably, the cross-section of the main connecting plate is rectangular, and each straight plate in the comb-shaped plate is connected to the same long side of the main connecting plate.

[0014] Preferred,

[0015] The length of the total connecting plate is not less than 50mm; and / or,

[0016] The length of the comb-shaped plate is not less than 50mm.

[0017] Preferably, the surface of the main connecting plate is further provided with scale lines;

[0018] The scale lines are set along the length of the main connecting plate, and the scale lines are set at the edge of the main connecting plate.

[0019] Preferably, in the comb-shaped plate:

[0020] Each straight plate is set with an equal width, and the gap between two adjacent straight plates is also set with an equal width, so that the distance between the upper edge of the (n-1)th straight plate and the upper edge of the nth straight plate is equal to the distance between the lower edge of the (n-1)th straight plate and the lower edge of the nth straight plate.

[0021] Preferably, in the comb-shaped plate:

[0022] The distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is 2-4 mm; and / or,

[0023] The distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is 2-4mm.

[0024] Preferably, the surface of the comb-shaped plate is further provided with scale lines;

[0025] The scale lines are arranged along the length of the comb plate, and the scale lines are located at the edge of the comb plate.

[0026] Preferably, the thickness of the pathological auxiliary sampling tool is 1-2 mm.

[0027] Preferably, the pathological auxiliary sampling tool is made of metal or transparent plastic, and the pathological auxiliary sampling tool has an integrated structure.

[0028] The working principle of this utility model is as follows:

[0029] When using this pathological auxiliary sampling tool, it is used in conjunction with a conventional sampling plate and sampling scalpel: First, lay the mucosa flat on the sampling plate and measure the size of the mucosa and the lesion; then, gently place the pathological auxiliary sampling tool of this protocol on the mucosa, ensuring that one end of the tool is flush with the mucosa; next, use the sampling scalpel to cut along each straight edge of the comb-like plate (uniformly the upper or lower edge) until all cuts are completed, obtaining a mucosal strip of the target sampling width; finally, place the mucosal strip into the specimen box in the original specimen order to complete the sampling, and clean the pathological auxiliary sampling tool, sampling plate, and sampling scalpel.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] This pathology-aided sampling tool can meet the sampling needs of most endoscopic mucosal resection specimens (most endoscopic resection specimens have a maximum diameter of less than 5 cm). This tool design allows the sampling personnel to quickly and accurately divide the mucosa into strips of the target sampling width (e.g., 3 mm wide), facilitating subsequent tumor size assessment.

[0032] Using this pathological sampling tool: 1. No additional training is required for the sampling personnel, and they can quickly get started; 2. The specimen is precisely cut, which facilitates the assessment of tumor size; 3. The mucosa of the sample is cut in a standardized and smooth manner, which facilitates subsequent embedding and sectioning. Attached Figure Description

[0033] Figure 1This is a schematic diagram of the pathological auxiliary sampling tool of Example 1;

[0034] In the figure: 1-Pathological auxiliary sampling tool; 2-Main connecting plate; 3-Comb plate. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] A pathological auxiliary sampling tool for endoscopic mucosal resection specimens, such as Figure 1 As shown, it includes a main connecting plate 2 and a comb plate 3;

[0038] The comb-shaped plate 3 is connected to the side of the main connecting plate 2;

[0039] The comb-shaped plate 3 is composed of several parallel straight plates, and the width of each straight plate is smaller than the target material width.

[0040] The distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is equal to the distance between the top edge of the nth straight plate and the top edge of the (n+1)th straight plate, and the distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is equal to the target material width, where n is a natural number greater than 1 and less than the total number of plates N; and / or,

[0041] The distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is equal to the distance between the bottom edge of the nth straight plate and the bottom edge of the (n+1)th straight plate, and the distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is equal to the target material width, where n is a natural number greater than 1 and less than the total number of plates N.

[0042] More specifically, in this embodiment:

[0043] like Figure 1 As shown, the pathological auxiliary sampling tool 1 is a square plate as a whole, which can be divided into a main connecting plate 2 and a comb-shaped plate 3.

[0044] The cross-section of the main connecting plate 2 is rectangular, with one long side (in this embodiment, denoted as ) being rectangular. Figure 1 The direction shown is the right long side) connecting the comb plate 3; the comb plate 3 is composed of several parallel straight plates arranged at intervals. One end of each straight plate is connected to the side of the main connecting plate 2, and the other end can be designed as a free end (or, as needed, the end of each straight plate away from the main connecting plate 2 can be fixedly connected to ensure that the overall structure is stable and reliable and the dimensions are accurate when in use).

[0045] Furthermore, based on the fact that the maximum diameter of conventional specimens is within 5cm, in this embodiment, the length of the main connecting plate 2 is designed to be 50mm, and the length of the straight plate is designed to be 50mm, so that the pathological auxiliary sampling tool 1 can completely cover most of the specimen; in addition, in this embodiment, taking the cutting of a 3mm wide mucosal strip as an example, that is, the target sampling width is 3mm, therefore, the width of each straight plate should be less than 3mm, and each straight plate also satisfies the following: the distance from the upper / lower edge of the previous straight plate to the upper / lower edge of the next straight plate should be precisely controlled to be 3mm. In this embodiment, the width of the mucosal strip is controlled by controlling the distance between the upper edges of the straight plates. Therefore, in actual cutting, this embodiment should uniformly cut along the upper edge of the straight plates. In some embodiments, the width of the mucosal strip formed by cutting can be controlled by controlling the distance between the lower edges of the straight plates and cutting along the lower edge. In other embodiments, the width of each straight plate can be set to a uniform value, such as 1mm or 2mm, and the gap width between each straight plate can be set to a uniform value, such as 2mm or 1mm, so that the sum of the width of a certain straight plate and the width of the gap on one side of the straight plate is equal to the target sampling width. In this case, it is only necessary to control the cutting of a single specimen to be based entirely on the upper or lower edge.

[0046] Furthermore, to ensure that the handheld position of the pathological auxiliary sampling tool 1 avoids contamination of the specimen and affects the operation, the width of the main connecting plate 2 is designed to be 20mm in this embodiment, so that it can provide sufficient pressing or picking position during use; at the same time, to facilitate laying, pressing and transferring during use, the thickness of the pathological auxiliary sampling tool 1 is designed to be 1mm in this embodiment; and, to ensure the structural strength and ease of use of the pathological auxiliary sampling tool 1, it is preferably made of metal or transparent plastic material and adopts an integrated structure.

[0047] As a preferred example, a scale line can also be provided on the main connecting plate 2. The scale line is provided along the length direction of the main connecting plate 2 and is attached to the edge of the main connecting plate 2. Taking the pathological auxiliary sampling tool 1 structure in this embodiment as an example, the scale line should be provided on the edge of the main connecting plate 2 away from the straight plate.

[0048] As a preferred example, scale lines can also be provided on the straight plate, which are arranged along the length of the straight plate and are attached to the edge of the straight plate.

[0049] When using this pathological auxiliary sampling tool 1, it can be directly used with existing conventional sampling plates and sampling knives:

[0050] First, lay the mucosa flat on the sampling plate and measure the size of the mucosa and the lesion. Then, gently place the pathological auxiliary sampling tool 1 on the mucosa and keep one end of the tool flush with the mucosa. Next, use the sampling knife to cut along each straight edge of the comb plate 3 (either the upper or lower edge) until all are cut to obtain a mucosal strip of the target sampling width. Finally, place the mucosal strip into the specimen box in the original specimen order to complete the sampling. Clean the pathological auxiliary sampling tool 1, the sampling plate, and the sampling knife.

[0051] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A pathological auxiliary sampling tool for endoscopic mucosal resection specimens, characterized in that, Includes a main connecting plate (2) and a comb plate (3); The side of the main connecting plate (2) is connected to the comb plate (3); The comb-shaped plate (3) is composed of several parallel straight plates, and the width of each straight plate is less than the target material width. The distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is equal to the distance between the top edge of the nth straight plate and the top edge of the (n+1)th straight plate, and the distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is equal to the target material width, where n is a natural number greater than 1 and less than the total number of plates N; and / or, The distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is equal to the distance between the bottom edge of the nth straight plate and the bottom edge of the (n+1)th straight plate, and the distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is equal to the target material width, where n is a natural number greater than 1 and less than the total number of plates N.

2. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The cross-section of the main connecting plate (2) is rectangular, and each straight plate in the comb plate (3) is connected to the side of the main connecting plate (2).

3. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The cross-section of the main connecting plate (2) is rectangular, and each straight plate in the comb plate (3) is connected to the same long side of the main connecting plate (2).

4. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The length of the main connecting plate (2) is not less than 50 mm; and / or, The length of the comb plate (3) is not less than 50 mm.

5. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The surface of the main connecting plate (2) is also provided with scale lines; The scale lines are set along the length of the main connecting plate (2), and the scale lines are set at the edge of the main connecting plate (2).

6. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, In the comb-shaped plate (3): Each straight plate is set with an equal width, and the gap between two adjacent straight plates is also set with an equal width, so that the distance between the upper edge of the (n-1)th straight plate and the upper edge of the nth straight plate is equal to the distance between the lower edge of the (n-1)th straight plate and the lower edge of the nth straight plate.

7. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, In the comb-shaped plate (3): The distance between the top edge of the (n-1)th straight plate and the top edge of the nth straight plate is 2-4 mm; and / or, The distance between the bottom edge of the (n-1)th straight plate and the bottom edge of the nth straight plate is 2-4mm.

8. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The surface of the comb plate (3) is also provided with scale lines; The scale lines are set along the length of the comb plate (3), and the scale lines are set at the edge of the comb plate (3).

9. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The thickness of the pathological auxiliary sampling tool (1) is 1-2 mm.

10. The pathological auxiliary sampling tool for endoscopic mucosal resection specimens according to claim 1, characterized in that, The pathological auxiliary sampling tool (1) is made of metal or transparent plastic and is an integral structure.

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