Tweezers

Abstract

The utility model relates to the technical field of paraffin embedding, in particular to tweezers which comprise a first tweezers piece, a second tweezers piece is welded to one side of the first tweezers piece, through holes are formed in the two sides of one end of the first tweezers piece, rotating rods are rotationally connected into the through holes, and limiting rings are installed at the two ends of the surface of each rotating rod. The two ends, close to the middle, of the surface of the rotating rod are sleeved with return springs, the two ends, close to the limiting ring, of the surface of the rotating rod are rotationally connected with forceps heads, and a clamping groove is formed in the middle of one side of each forceps head. The improved tweezers can provide more stable and uniform pressure when detritus tissues are treated, are effectively suitable for tissue samples which are small in size, thin and large in number, rapidly and accurately compact all the tissues, reduce the risks of tissue loss and mutual pollution, effectively compact the tissues and improve the working efficiency. And moreover, the device can adapt to embedding boxes of different models, so that the flexibility and the efficiency of operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of paraffin embedding technology, specifically to a type of tweezers. Background Technology

[0002] Paraffin embedding technology is widely used in histology and pathology, primarily for fixing biological tissue samples and preparing them into sections for microscopic observation and pathological analysis. This technique involves immersing tissue samples, after fixation, dehydration, and clearing, into molten paraffin wax, which hardens the samples while preserving the tissue's structure and morphology.

[0003] In paraffin embedding techniques, forceps are a commonly used tool, primarily for precise manipulation and handling of tissue samples. Because the process involves multiple steps such as fixation, dehydration, clearing, and paraffin embedding, forceps help researchers accurately transfer or locate the tissue during these steps, avoiding direct hand contact and reducing contamination and tissue damage.

[0004] In the process of developing this utility model, the inventors discovered the following problems with the existing technology: 1. While commonly used forceps can be used to embed most pathological tissues, when encountering fragmented tissues that are small, thin, and numerous, ordinary forceps cannot quickly compact all the tissues. Furthermore, thin tissues may float, causing some tissues to solidify before the paraffin is fully embedded. 2. Commonly used forceps usually require the use of additional compaction blocks to quickly compact the tissues. However, these blocks tend to adhere to the specimen, easily causing tissue loss and cross-contamination. Moreover, the blocks are generally large and cannot be used with all types of embedding cassettes. Additionally, the process of applying pressure can cause the central tissue to overflow to the periphery. Utility Model Content

[0005] The purpose of this utility model is to provide a forceps to solve the problems mentioned in the background art, such as the inability to quickly compact small, thin, and numerous fragmented tissues, causing thin tissues to float, usually requiring additional clamping blocks, easily adhering to the specimen, easily causing tissue loss and cross-contamination, and being unsuitable for all types of embedding cassettes. To achieve the above objective, this utility model provides the following technical solution: a forceps, including a first forceps blade, a second forceps blade welded to one side of the first forceps blade, through holes on both sides of one end of the first forceps blade, a rotating rod rotatably connected inside the through holes, limit rings installed at both ends of the rotating rod surface, return springs sleeved at both ends of the rotating rod surface near the middle, and forceps heads rotatably connected to both ends of the rotating rod surface near the limit rings, a groove formed in the middle of one side of the forceps head, and an inner groove formed at the end of the first forceps blade near the forceps head.

[0006] More preferably, the tweezers are appropriately widened, and the widened tweezers are bent at a maximum angle of 80 degrees to the tweezers blade.

[0007] More preferably, anti-slip textures are provided at both ends of one side of the first tweezers.

[0008] More preferably, the surface of the tweezers tip is provided with several micro-grids.

[0009] More preferably, anti-slip textures are provided at both ends of one side of the first tweezers.

[0010] In a further preferred embodiment, the return spring forms a buffer structure through a slot and an inner groove.

[0011] More preferably, the tweezers head and the rotating rod form a rotating structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention provides more stable and uniform pressure when processing debris, making it suitable for small, thin, and numerous tissue samples. It can quickly and accurately compact all tissues, preventing thin tissues from floating up, ensuring that paraffin does not solidify prematurely during the embedding process, guaranteeing that all tissues can be effectively embedded, improving operational efficiency, embedding quality, and the reliability of results.

[0014] This invention eliminates the shortcomings of traditional forceps that rely on additional compressive blocks when handling tissues, avoids the problem of compressive blocks adhering to the specimen, reduces the risk of tissue loss and cross-contamination, and has more precise control and more uniform pressure distribution, which can effectively compact the tissue without causing the central tissue to overflow to the periphery. It is also more adaptable and can be adapted to different types of embedding cassettes, improving the flexibility and efficiency of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the formal structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the compaction component of this utility model;

[0017] Figure 3 This is a schematic diagram of the exploded structure of the compaction component of this utility model;

[0018] Figure 4 This is a front view schematic diagram of the tweezers head structure of this utility model.

[0019] In the diagram: 1. First tweezers; 2. Second tweezers; 3. Through hole; 4. Rotating rod; 5. Limiting ring; 6. Return spring; 7. Tweezers head; 8. Slot; 9. Inner groove. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a tweezer, including a first tweezer blade 1, a second tweezer blade 2 welded to one side of the first tweezer blade 1, through holes 3 on both sides of one end of the first tweezer blade 1, a rotating rod 4 rotatably connected inside the through holes 3, limit rings 5 ​​installed at both ends of the surface of the rotating rod 4, return springs 6 sleeved at both ends of the surface of the rotating rod 4 near the middle, tweezer heads 7 rotatably connected at both ends of the surface of the rotating rod 4 near the limit rings 5, a slot 8 is provided in the middle of one side of the tweezer head 7, and an inner groove 9 is provided at the end of the first tweezer blade 1 near the tweezer head 7.

[0022] In this embodiment, as Figure 2 As shown, the tweezers head 7 has been appropriately widened, and the widened tweezers head 7 can be bent at a maximum of 80 degrees with the tweezers blade; the tweezers head has been appropriately widened and the design has been improved so that by pressing down with force, the widened part can be at about 80 degrees with the tweezers body. This angle helps to more easily and quickly compact the debris, while increasing the compaction area and improving work efficiency.

[0023] In this embodiment, as Figure 3 As shown, the surface of the tweezers tip 7 is provided with several micro-grids; the improved design of the micro-grids can effectively increase the friction between the tweezers tip 7 and the debris tissue, which helps to prevent the tissue in the middle from overflowing to the periphery during the pressing process, thus preventing the phenomenon of voids in the middle.

[0024] In this embodiment, as Figure 2 As shown, anti-slip textures are provided at both ends of one side of the first forceps 1; this can significantly improve the grip stability and accuracy during operation. The anti-slip textures reduce the slippage of the forceps during use by increasing friction, allowing researchers to hold the forceps more firmly when handling small or fragile tissue samples, and avoid accidental slippage or tissue damage.

[0025] In this embodiment, as Figure 3 As shown, the return spring 6 forms a buffer structure through the slot 8 and the inner groove 9; the design of the buffer structure allows the tweezers 7 to bend gradually under downward pressure, which, combined with the elastic force, achieves a good compaction effect and can automatically reset afterward, improving practicality.

[0026] In this embodiment, as Figure 3 As shown, the tweezers 7 and the rotating rod 4 form a rotating structure. The design of the rotating structure can drive the tweezers 7 to rotate horizontally along the rotating rod 4 through the pressing force, thereby increasing the contact area between the tweezers 7 and the debris tissue, which helps to improve the compaction quality and efficiency.

[0027] In this embodiment, as Figure 3 As shown, the return springs 6 are symmetrically distributed about the horizontal center line of the rotating rod 4. The symmetrical layout design allows the return springs 6 to apply pressure evenly, making the compaction action of the tweezers more stable and consistent. This reduces possible deviations or uneven force distribution during operation, ensuring that tissue samples are not damaged or misaligned during transfer or adjustment, and improving the quality and stability of the embedding process.

[0028] The method of use and advantages of this utility model: When using this tweezers, the working process is as follows:

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, firstly, the operator applies force to the anti-slip texture of the tweezers and presses downwards, causing the widened tweezers head 7 to form an angle of approximately 80 degrees with the tweezers body. This helps to more easily and quickly compact the debris tissue. At the same time, the micro-grid on the surface of the tweezers head 7 effectively increases the friction between the tweezers head 7 and the debris tissue, preventing the tissue in the middle from overflowing to the periphery and causing voids in the middle during the pressing process. After the operation is completed, the tweezers head 7 can automatically return to its original position. When embedding regular large specimens, it is not necessary to press down, but when embedding debris tissue, it is pressed down. The two different angles are applicable to embedding all tissues.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pair of tweezers, comprising a first tweezer blade (1), characterized in that: A second tweezers (2) is welded to one side of the first tweezers (1). Through holes (3) are provided on both sides of one end of the first tweezers (1). A rotating rod (4) is rotatably connected inside the through hole (3). Limiting rings (5) are installed at both ends of the surface of the rotating rod (4). Return springs (6) are sleeved on both ends of the surface of the rotating rod (4) near the middle. Tweezer heads (7) are rotatably connected to both ends of the surface of the rotating rod (4) near the limiting rings (5). A slot (8) is provided in the middle of one side of the tweezer head (7). An inner groove (9) is provided at the end of the first tweezers (1) that is close to the tweezer head (7).

2. The tweezers according to claim 1, characterized in that: The tweezers (7) have been appropriately widened, and the widened tweezers (7) can be bent at a maximum angle of 80 degrees to the tweezers blade.

3. The tweezers according to claim 1, characterized in that: The surface of the tweezers (7) is provided with several micro-grids.

4. The tweezers according to claim 1, characterized in that: The first tweezers (1) has anti-slip textures at both ends on one side.

5. The tweezers according to claim 1, characterized in that: The return spring (6) forms a buffer structure through the slot (8) and the inner groove (9).

6. The tweezers according to claim 1, characterized in that: The tweezers (7) and the rotating rod (4) form a rotating structure.

7. The tweezers according to claim 1, characterized in that: The return spring (6) is symmetrically distributed about the horizontal center line of the rotating rod (4).

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