Cooling clamp for pathological section

The cooling clamp addresses curling and contamination issues in paraffin block sectioning by using a stainless steel block and clamping mechanism to stabilize and cool paraffin blocks, ensuring consistent slicing and reducing manual handling.

CN222280274UActive Publication Date: 2024-12-31THE FIRST HOSPITAL OF CHINA MEDICIAL UNIV
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Patent Information

Application Number
CN202420717337.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-08
Publication Date
2024-12-31
Estimated Expiration
2034-04-08

AI Technical Summary

Technical Problem

Existing methods for cooling paraffin blocks during sectioning cause curling and uneven slicing, leading to damaged pathological sections due to direct contact with melting ice and water contamination, and require continuous manual handling.

Method used

A cooling clamp with a stainless steel block, clamping and positioning mechanisms, and handles that allow for refrigeration and stable fixation of paraffin blocks, enabling efficient cooling without manual handling and reducing contamination risks.

Benefits of technology

The cooling clamp effectively prevents paraffin block softening, maintains section quality, and reduces contamination, while being environmentally friendly and convenient to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The cooling clamp comprises a main plate, telescopic grooves are formed in the four corners of the front side of the main plate, a fixing groove is formed in the middle of the front side of the main plate, clamping grooves communicated with an inner cavity of the fixing groove are formed in the middles of the left side and the right side of the main plate, and limiting grooves are formed in the outer ends of the upper side and the lower side of an inner cavity of each clamping groove; the cooling mechanism is arranged in an inner cavity of the fixing groove; the mounting plate is arranged on the rear side of the main plate; the number of the clamping blocks is two, and the two clamping blocks are arranged on the upper side and the lower side of the main plate correspondingly; the number of the handles is two, and the two handles are arranged on the left side and the right side of the main plate respectively. And the rubber sleeve is arranged in the middle of the outer wall of the handle. When the device is used, paraffin blocks can be effectively refrigerated and prevented from being softened, meanwhile, adverse effects on pathological sections can be avoided, and meanwhile the device can be recycled and is environmentally friendly and convenient to use.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a cooling clamp used for pathological sections. Background Art

[0002] Paraffin sectioning is the most widely used method in routine histological preparation techniques. Paraffin sectioning is not only used to observe the morphological structure of normal cell tissues, but is also the main method used by pathology and forensic medicine to study, observe and judge the morphological changes of cell tissues. It has also been widely used in the research of many other disciplines.

[0003] The paraffin sectioning process usually embeds the diseased tissue in a paraffin block, cuts it into thin slices with a slicer, and then stains it with hematoxylin-eosin (HE). After the diseased tissue is embedded in paraffin, it usually needs to be frozen to ensure that the paraffin is hard enough for sectioning. However, when using a slicer to section, the paraffin often softens due to room temperature, and the cut wax slices curl up. The curled wax slices will cause the tissue to shrink and become uneven, affecting the quality of the sections and observation under a microscope. In this case, it takes a long time to remove the wax block and refreeze it, and it is easy to disrupt the order and confuse the specimens when it is actually used in the laboratory and pathology department. Therefore, researchers usually hold the ice cube wrapped in gauze with bare hands and apply it repeatedly on the wax. In this way, the human body temperature will accelerate the melting of the handheld end of the ice cube, shortening the use time of the ice cube. In addition, the ice cube becomes difficult to grasp after a short period of use and often slips out of the hand. In the case of unstable grip, it is easy to cut fingers when slicing;

[0004] In order to solve the above problems, the prior art discloses an ice cube clamp for pathological slicing, and the patent number is: CN218313143U, and specifically discloses: The utility model discloses an ice cube clamp for pathological slicing, which belongs to the field of slicing technology. The ice cube clamp includes a handheld handle, a placement structure and a clamping mechanism. The handheld handle is equipped with a clamping mechanism, and the handheld handle is transmission-connected with the clamping mechanism for the internal expansion cooperation between the clamping mechanism and the ice cube. The handheld handle is equipped with a placement structure, and the placement structure cooperates with the handheld handle for the placement of the ice cube clamp when it is idle. The utility model realizes stable clamping of ice cubes through the cooperation between the handheld handle and the clamping mechanism, avoids direct contact between human hands and ice cubes, prolongs the use time of ice cubes, and will not cut hands during slicing; when ice cubes are not needed, ice cubes can be placed on the table to ensure that ice cubes are not contaminated and improve the quality of experiments. The utility model provides an ice cube clamp for pathological slicing to assist the operation of freezing wax blocks, which prolongs the use time of ice cubes while ensuring experimental safety and test quality;

[0005] Although the above-mentioned prior art solves the problem of direct contact between the experimenter's hands and the ice cubes, the experimenter still needs to continue to hold the clamp to cool the wax block. At the same time, since the ice cubes are easy to melt and the wax block needs to be rubbed with the ice cubes, the water generated by the melting of the ice cubes and the friction of the gauze may damage the pathological block, thereby having an adverse effect on the pathological section. Utility Model Content

[0006] The utility model aims to provide a cooling clamp for pathological sections, so as to at least solve the problem that the prior art easily causes damage to the pathological sections.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling clamp for pathological sections, comprising: a main board, wherein the four front corners of the main board are provided with telescopic grooves, the middle part of the front side of the main board is provided with a fixing groove, the middle parts of the left and right sides of the main board are provided with a clamping groove connected with the inner cavity of the fixing groove, and the upper and lower outer ends of the inner cavity of the clamping groove are provided with limiting grooves; a cooling mechanism, wherein the cooling mechanism is arranged in the inner cavity of the fixing groove; a mounting plate, wherein the mounting plate is arranged on the rear side of the main board; a clamping block, wherein the number of the clamping blocks is two, and the two clamping blocks are respectively arranged on the upper and lower sides of the main board; a handle, wherein the number of the handles is two, and the two handles are respectively arranged on the left and right sides of the main board; a rubber sleeve, wherein the rubber sleeve is arranged in the middle part of the outer wall of the handle; a paraffin block, wherein the upper and lower sides of the paraffin block are respectively adapted to be plugged into the inner cavities of the two clamping blocks.

[0008] Preferably, in order to position the paraffin block, the inner cavity of the telescopic slot is provided with: a first spring, the first spring is embedded in the inner cavity of the telescopic slot, and the rear end of the first spring is clamped on the rear side of the inner cavity of the telescopic slot; a positioning column, the rear side of the positioning column can be slidably adapted and inserted into the inner cavity of the telescopic slot, the front end of the positioning column extends out of the inner cavity of the telescopic slot, the front end of the first spring is clamped on the rear end of the positioning column, and the outer wall of the positioning column is in contact with the paraffin block.

[0009] Preferably, in order to cool the paraffin block, the cooling mechanism includes: a stainless steel block, which is slidably adapted to be inserted into the inner cavity of the fixed groove, and the left and right sides of the stainless steel block are provided with card slots, and the positions of the card slots correspond to the positions of the card slots; a card column, which is slidably adapted to be inserted into the inner cavity of the card slot, the inner end of the card column is adapted to be inserted into the inner cavity of the card slot, and the outer end of the card column extends out of the inner cavity of the card slot; a rotating plate, which is rotatably arranged on the outer wall of the card column through a bearing; a second spring, which is sleeved on the outer wall of the card column, the inner end of the second spring is engaged with the inner side of the inner cavity of the card slot, and the outer end of the second spring is engaged with the inner side of the rotating plate; a card block, the number of the card blocks is four, and the four card blocks are respectively arranged at the upper and lower ends of the outer sides of the outer walls of the two card columns, and the card block is slidably adapted to be inserted into the inner cavity of the limiting groove.

[0010] Preferably, the length from the rear end of the positioning column to the rear side of the inner cavity of the telescopic slot is greater than the length of the positioning column extending out of the telescopic slot.

[0011] Preferably, the distance between the clamping block and the outer wall of the main board is smaller than the distance between the outer side of the rotating piece and the inner side of the limiting groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the cooling clamp for pathological sections can cool the stainless steel block by putting the stainless steel block into a refrigerator for refrigeration in advance, the stainless steel block can be fixed in the inner cavity of the fixing groove by the cooperation between the clamping column and the clamping groove, the paraffin block can be fixed by the clamping block, the paraffin block can be positioned by the positioning column, the paraffin block can be cooled by the refrigerated stainless steel block, and the device can be installed on a slicer by using a mounting plate. When the device is in use, it can not only effectively cool the paraffin block to prevent the paraffin block from softening, but also avoid adverse effects on pathological sections, and the device can be recycled, which is environmentally friendly and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is an exploded view of the utility model;

[0015] Figure 3 This is a main cross-sectional view of the main board;

[0016] Figure 4 This is an exploded view of the motherboard;

[0017] Figure 5 for Figure 2 A magnified image of point A;

[0018] Figure 6 for Figure 3 The enlarged view of point B;

[0019] Figure 7 for Figure 4 Enlarged view of point C;

[0020] Figure 8 for Figure 4 Enlarged view of point D.

[0021] In the figure: 1. main board; 2. telescopic slot; 3. fixing slot; 4. snap-in slot; 5. limit slot; 6. first spring; 7. positioning column; 8. cooling mechanism; 81. stainless steel block; 82. snap-in slot; 83. snap-in column; 84. rotating plate; 85. second spring; 86. snap-in block; 9. mounting plate; 10. clamping block; 11. handle; 12. rubber sleeve; 13. paraffin block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-8The utility model provides a technical solution: a cooling clamp for pathological sections, comprising: a main board 1, a telescopic slot 2, a fixed slot 3, a clamping slot 4, a limit slot 5, a first spring 6, a positioning column 7, a cooling mechanism 8, a mounting plate 9, a clamping block 10, a handle 11, a rubber sleeve 12 and a paraffin block 13. The main board 1 is provided with telescopic slots 2 at the four front corners, a fixed slot 3 is provided at the middle of the front side of the main board 1, and a clamping slot 4 connected to the inner cavity of the fixed slot 3 is provided at the middle of the left and right sides of the main board 1. The upper and lower outer ends of the inner cavity of the connecting groove 4 are provided with limiting grooves 5, and a cooling mechanism 8 is arranged in the inner cavity of the fixing groove 3. The cooling mechanism 8 is used to cool the paraffin block 13. The mounting plate 9 is arranged on the rear side of the main board 1, and the main board 1 can be fixed on the slicer through the mounting plate 9. There are two clamping blocks 10, and the two clamping blocks 10 are respectively arranged on the upper and lower sides of the main board 1. The clamping blocks 10 are used to install the paraffin block 13. There are two handles 11, and the two handles 11 are respectively arranged on the left and right sides of the main board 1. The rubber sleeve 12 is arranged in the middle of the outer wall of the handle 11. The upper and lower sides of the paraffin block 13 can be slidably adapted and plugged into the inner cavity of the two clamping blocks 10 respectively. The paraffin block 13 is the prior art, and no further details are given here. The first spring 6 is embedded in the inner cavity of the telescopic groove 2, and the rear end of the first spring 6 is clamped on the rear side of the inner cavity of the telescopic groove 2. The first spring 6 is a rotary spring, which is elastically deformed after being squeezed or stretched by external force, and returns to its initial state after the external force is removed. The first spring 6 is used here to push outward The movable positioning column 7, the rear side of the positioning column 7 can be slidably adapted and inserted into the inner cavity of the telescopic slot 2, the front end of the positioning column 7 extends out of the inner cavity of the telescopic slot 2, the front end of the first spring 6 is clamped on the rear end of the positioning column 7, the outer wall of the positioning column 7 is in contact with the paraffin block 13, the positioning column 7 can be used to position the paraffin block 13, the length between the rear end of the positioning column 7 and the rear side of the inner cavity of the telescopic slot 2 is greater than the length of the positioning column 7 extending out of the telescopic slot 2, to ensure that the positioning column 7 can be completely moved into the inner cavity of the telescopic slot 2.

[0024] As a preferred embodiment, further, the cooling mechanism 8 includes: a stainless steel block 81, a slot 82, a post 83, a rotating piece 84, a second spring 85 and a block 86. The stainless steel block 81 can be slidably adapted to be inserted into the inner cavity of the fixed groove 3. Slots 82 are provided on the left and right sides of the stainless steel block 81. The position of the slot 82 corresponds to the position of the connecting groove 4. The paraffin block 13 can be cooled by refrigerating the stainless steel block 81. The post 83 can be slidably adapted to be inserted into the inner cavity of the connecting groove 4. The inner end of the post 83 is adapted to be inserted into the inner cavity of the slot 82. The outer end of the post 83 extends out of the inner cavity of the connecting groove 4. The post 83 is used to fix the stainless steel block 81. The rotating piece 84 is rotatably arranged on the outer wall of the post 83 through a bearing. The second spring 85 is sleeved on the post 8 3, the inner end of the second spring 85 is clamped on the inner side of the inner cavity of the clamping groove 4, and the outer end of the second spring 85 is clamped on the inner side of the rotating piece 84. The second spring 85 is a rotating spring, which is elastically deformed after being squeezed or stretched by external force, and returns to its initial state after the external force is removed. The second spring 85 is used to pull the clamping column 83 inward. There are four clamping blocks 86, which are respectively arranged at the upper and lower ends of the outer sides of the outer walls of the two clamping columns 83. The clamping blocks 86 can be slidably adapted and inserted into the inner cavity of the limiting groove 5. The clamping column 83 can be fixed by the cooperation between the clamping blocks 86 and the clamping groove 4. The distance between the clamping block 86 and the outer wall of the main board 1 is smaller than the distance between the outer side of the rotating piece 84 and the inner side of the limiting groove 5, so as to ensure that the clamping block 86 can be completely moved out of the inner cavity of the limiting groove 5.

[0025] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0026] When in use, first pull the two clamping columns 83 outward, and the clamping column 83 moves outward to pull the second spring 85 to elastically deform until the clamping block 86 completely moves out of the inner cavity of the limiting groove 5. At this time, the clamping column 83 is completely separated from the inner cavity of the clamping groove 82, and the clamping column 83 is rotated 90 degrees. The clamping column 83 can be fixed by using the clamping block 86 and the outer wall of the main board 1. The stainless steel block 81 is taken out from the inner cavity of the fixing groove 3 and put into the refrigerator for a period of time. When the paraffin block 13 needs to be sliced, the stainless steel block 81 is taken out and put into the fixing groove 3, rotate the clamping column 83 by 90 degrees, at this time, the position of the clamping block 86 corresponds to the position of the limit groove 5, and the clamping column 83 can be pulled to move inward under the elastic force of the second spring 85, thereby prompting the clamping column 83 to be inserted into the inner cavity of the clamping groove 82, which is used to fix the stainless steel block 81, then remove the paraffin block 13, and use the paraffin block 13 to press the two positioning columns 7 on the left or right side backward until the positioning column 7 is completely moved into the inner cavity of the telescopic groove 2, and squeeze the first spring 6 to cause elastic deformation, and slide the paraffin block to the left or right. 13, the upper and lower sides of the paraffin block 13 are respectively adapted and inserted into the inner cavities of the two clamping blocks 10. After the paraffin block 13 is moved to a suitable position, at this time, the position of the paraffin block 13 and the position of the positioning column 7 are staggered. Under the elastic force of the first spring 6, the positioning column 7 is pushed to restore to the initial position. The position of the paraffin block 13 can be fixed by using the four positioning columns 7. The main board 1 is fixed on the slicer by using the mounting plate 9, and the paraffin block 13 can be sliced. After the operation is completed, when the paraffin block 13 needs to be removed, press down with your hand The two positioning posts 7 on the left or right side squeeze the first spring 6 to cause elastic deformation until the positioning post 7 is completely moved into the inner cavity of the telescopic slot 2, and the paraffin block 13 can be removed by sliding it to the left or right, and then the positioning post 7 can be pushed to return to the initial position under the elastic force of the first spring 6. When the device is in use, it can not only effectively cool the paraffin block 13 to prevent the paraffin block 13 from softening, but also avoid adverse effects on pathological sections. At the same time, the device can also be recycled, which is environmentally friendly and convenient.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and limited, terms such as "snapping", "axial connection", "plug-in", "welding", "screwing" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling clamp for pathological sections, characterized in that: include: A main board (1), wherein the four front corners of the main board (1) are provided with telescopic slots (2), the middle of the front side of the main board (1) is provided with a fixing slot (3), the middle of the left and right sides of the main board (1) are provided with a clamping slot (4) connected to the inner cavity of the fixing slot (3), and the outer ends of the upper and lower sides of the inner cavity of the clamping slot (4) are provided with limiting slots (5); A cooling mechanism (8), wherein the cooling mechanism (8) is arranged in the inner cavity of the fixing groove (3); A mounting plate (9), the mounting plate (9) being arranged on the rear side of the main board (1); A clamping block (10), wherein the number of the clamping blocks (10) is two, and the two clamping blocks (10) are respectively arranged on the upper and lower sides of the main board (1); Handles (11), the number of the handles (11) being two, and the two handles (11) being respectively arranged on the left and right sides of the main board (1); A rubber sleeve (12), wherein the rubber sleeve (12) is arranged at the middle part of the outer wall of the handle (11); A paraffin block (13), wherein the upper and lower sides of the paraffin block (13) are respectively slidably adapted to be inserted into the inner cavities of the two clamping blocks (10).

2. A cooling clamp for pathological sections according to claim 1, characterized in that: The inner cavity of the telescopic slot (2) is provided with: A first spring (6), the first spring (6) being embedded in the inner cavity of the telescopic slot (2), and the rear end of the first spring (6) being clamped on the rear side of the inner cavity of the telescopic slot (2); A positioning column (7), the rear side of which is slidably adapted to be inserted into the inner cavity of the telescopic slot (2), the front end of which extends out of the inner cavity of the telescopic slot (2), the front end of the first spring (6) is clamped on the rear end of the positioning column (7), and the outer wall of the positioning column (7) is in contact with the paraffin block (13).

3. A cooling clamp for pathological sections according to claim 2, characterized in that: The cooling mechanism (8) comprises: A stainless steel block (81), the stainless steel block (81) being slidably adapted to be inserted into the inner cavity of the fixing groove (3), the left and right sides of the stainless steel block (81) being provided with a clamping groove (82), the position of the clamping groove (82) corresponding to the position of the clamping groove (4); A clamping column (83), wherein the clamping column (83) is slidably adapted to be inserted into the inner cavity of the clamping groove (4), the inner end of the clamping column (83) is adapted to be inserted into the inner cavity of the clamping groove (82), and the outer end of the clamping column (83) extends out of the inner cavity of the clamping groove (4); A rotating plate (84), wherein the rotating plate (84) is rotatably disposed on the outer wall of the clamping column (83) via a bearing; A second spring (85), wherein the second spring (85) is sleeved on the outer wall of the clamping column (83), the inner end of the second spring (85) is clamped on the inner side of the inner cavity of the clamping groove (4), and the outer end of the second spring (85) is clamped on the inner side of the rotating plate (84); The card blocks (86) are four in number, and the four card blocks (86) are respectively arranged at the upper and lower ends of the outer sides of the outer walls of the two card columns (83), and the card blocks (86) can be slidably adapted to be inserted into the inner cavity of the limiting groove (5).

4. A cooling clamp for pathological sections according to claim 3, characterized in that: The length between the rear end of the positioning column (7) and the rear side of the inner cavity of the telescopic slot (2) is greater than the length of the positioning column (7) extending out of the telescopic slot (2).

5. A cooling clamp for pathological sections according to claim 4, characterized in that: The distance between the clamping block (86) and the outer wall of the main board (1) is smaller than the distance between the outer side of the rotating plate (84) and the inner side of the limiting groove (5).