A tissue embedding press

Abstract

The utility model provides an organization embedding pressure holder, including pressure holding body, the pressure holding body is rod -shaped, and its one end is handheld part, and the other end is connecting end, still including detachable pressure head, the detachable pressure head has a flat pressure holding surface, the connecting end of pressure holding body and detachable pressure head between be provided with detachable connecting structure, to connect pressure head in the connecting end of pressure holding body. By providing a special pressure holder composed of pressure holding body, detachable pressure head and detachable connecting structure arranged between the two, the traditional point contact clamping mode is changed to surface contact pressure holding. Through the special flat pressure holding surface, uniform and stable pressure holding of the soft tissue strip is realized, ensuring that the tissues are in the same plane at the bottom of the embedding box, laying a foundation for obtaining the maximum section; at the same time, the detachable connection core design breaks through the limitation of traditional integrated tools that cannot adapt to different tissues.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a tissue embedding and holding device. Background Technology

[0002] In pathological diagnosis, paraffin embedding of tissue is a crucial step in preparing tissue sections. This process requires the biopsy puncture strip or other soft tissue to be smoothly and stably fixed to the bottom of the embedding cassette, ensuring that the molten paraffin fully permeates the tissue and, upon cooling, forms a high-quality paraffin block suitable for sectioning. However, achieving smooth embedding and effective paraffin fixation for small, soft, and easily deformable tissues has always been a technical challenge in this field.

[0003] Currently, pathology technicians primarily rely on traditional tools such as surgical forceps or flat-tipped forceps. These tools are essentially "point contact" or "line contact" clamping instruments, which have inherent limitations when holding soft tissues: the point or line-like force application can easily lead to excessive local pressure causing tissue breakage, or uneven force causing tilting or flipping, making it difficult to stabilize the entire tissue on a single plane, ultimately affecting the acquisition of the largest section and increasing the risk of pathological diagnosis. Existing technology lacks a dedicated clamping device that can specifically address the embedding characteristics of soft tissues and achieve uniform planar clamping. Utility Model Content

[0004] This invention proposes a tissue embedding holder, which solves the problem that the point or line force application methods in the prior art are prone to causing excessive local pressure on the tissue and breakage, or uneven force application and tilting or flipping, making it difficult to keep the entire tissue stable on the same plane, and ultimately affecting the acquisition of the maximum cross-section.

[0005] The technical solution of this utility model is implemented as follows: A tissue embedding clamp includes a clamping body, which is rod-shaped with one end being a hand-held portion and the other end being a connecting end; it also includes a detachable clamping head, which has a flat clamping surface. A detachable connection structure is provided between the connecting end of the pressing body and the detachable pressing head to connect the pressing head to the connecting end of the pressing body.

[0006] Furthermore, the detachable connection structure includes a magnetic suction assembly, which includes a first magnetic suction part disposed at the connecting end of the pressing body and a second magnetic suction part disposed on the detachable pressing head. The first magnetic suction part and the second magnetic suction part are disposed facing each other and attract each other.

[0007] Furthermore, the detachable connection structure also includes a mechanical limiting component, which cooperates with the magnetic suction component.

[0008] Furthermore, the mechanical limiting component includes a boss and a groove that matches the shape of the boss.

[0009] Furthermore, the boss is disposed on the detachable pressure head, and the groove is disposed on the connecting end face of the pressure holding body.

[0010] Furthermore, the boss is disposed on the connecting end face of the pressing body, and the groove is disposed on the detachable pressing head.

[0011] Furthermore, the pressing surface of the detachable pressure head is provided with multiple micropores penetrating its thickness.

[0012] Furthermore, the pore size of the plurality of micropores is between 2 mm and 5 mm.

[0013] Furthermore, the detachable pressure head has various specifications, and the outer diameter of the pressing surface and / or the diameter of the micro-holes provided on the detachable pressure head of different specifications are different.

[0014] The beneficial effects of the technical solution provided in this application are as follows: 1. This application provides a dedicated clamping device consisting of a clamping body, a detachable clamping head, and a detachable connecting structure between the two, which changes the traditional point contact clamping method to surface contact clamping. The dedicated flat clamping surface achieves uniform and stable clamping of soft tissue strips, ensuring that the tissue is on the same plane at the bottom of the embedding cassette, laying the foundation for obtaining the maximum cross-section. Simultaneously, the core design of the detachable connection overcomes the limitation of traditional one-piece tools being unable to adapt to different tissues. 2. The introduction of a magnetic connection component in this tissue embedding clamp makes the replacement of the clamp head extremely quick and precise, achieving true "fast change" and further improving operational efficiency in high-throughput environments. The cooperation between the mechanical limiting component and the magnetic component greatly enhances the overall structural rigidity and stability of the clamp head after it is connected to the body, effectively preventing shaking and displacement during operation, thus ensuring the accuracy and repeatability of the clamping action. In addition, the through-hole array of micropores on the clamping surface is one of the key innovations of this invention. It successfully solves the long-standing problem of "clamping obstructing the passage of paraffin" in the prior art, greatly improving the quality of paraffin block preparation. The availability of clamp heads with various outer diameters and micropore sizes allows this device to flexibly and accurately adapt to various samples, from small puncture strips to larger tissue blocks. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the tissue embedding and holding device of this utility model; Figure 2 This is a top view of the detachable pressure head of this utility model; Figure 3 This is a schematic diagram of Embodiment 1 of the present utility model; Figure 4 This is a schematic diagram of Embodiment 2 of the present invention.

[0017] In the figure: 1 Pressing body, 11 First magnetic suction part, 2 Detachable pressing head, 21 Pressing surface, 22 Second magnetic suction part, 23 Micro hole, 3 Groove, 4 Boss. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] This utility model provides a tissue embedding clamp, the core design concept of which is to achieve planar, uniform, and stable clamping of soft tissue strips through a dedicated tool with replaceable clamping heads, and to promote effective paraffin penetration. The following will be discussed in conjunction with the attached... Figures 1 to 4 The embodiments of this utility model will be described in detail below.

[0020] Example 1

[0021] The tissue embedding clamp mainly consists of two core components: a clamping body 1 for the operator to hold, and a detachable clamping head 2 that directly contacts the tissue. The clamping body 1 has a slender, rod-like structure, an ergonomic design that allows pathologists to apply force precisely. One end of the clamping body 1 is the handheld part, and the other end is the connecting end for connecting to the clamping head. The detachable clamping head 2 is an independent component with a wide and flat clamping surface 21 at its bottom. This design aims to transform the point or linear force application of traditional tools into a surface force application, thereby evenly pressing soft tissue flat at the bottom of the embedding cassette and effectively preventing tissue lifting, flipping, or localized damage. To achieve flexible connection between the clamping head 2 and the body 1, a detachable connection structure is provided between the connecting end of the clamping body 1 and the detachable clamping head 2. This structure is the basis for enabling quick clamping head replacement.

[0022] To optimize the connection experience and achieve fast and precise assembly, a preferred embodiment of this utility model specifies the aforementioned detachable connection structure. This detachable connection structure preferably includes a magnetic suction component. Specifically, the magnetic suction component consists of two parts: a first magnetic suction part 11 is disposed inside or on the end face of the connecting end of the pressing body 1; correspondingly, a second magnetic suction part 22 is disposed on the top or inside of the detachable pressure head 2. When the pressure head 2 approaches the connecting end of the body 1, the first magnetic suction part 11 and the second magnetic suction part 22 attract each other due to their opposing orientation, thereby automatically pulling the pressure head 2 tight and fixing it to the body 1. The entire process does not require precise alignment, greatly improving operational efficiency.

[0023] Although magnetic connection offers convenience, to withstand shear forces during pressing operations and prevent rotation of the pressure head 2 relative to the body 1, this invention further incorporates a mechanical limiting component that works in conjunction with the magnetic component. This mechanical limiting component and the magnetic component together form a composite connection system, balancing both speed and stability. Specifically, the mechanical limiting component includes a boss 4 and a groove 3 that precisely matches the shape of the boss 4. The fit between the boss 4 and the groove 3 effectively restricts the movement and rotation of the pressure head 2 in any direction within the horizontal plane.

[0024] like Figure 3 As shown, regarding the specific arrangement of the boss 4 and the groove 3, the boss 4 is directly formed at the center of the upper surface of the detachable pressure head 2, while the groove 3 is correspondingly machined on the connecting end face of the pressing body 1. To ensure optimal anti-rotation effect, the cross-sectional profile of the aforementioned boss 4 is designed to be non-circular. Preferably, the cross-section of the boss 4 is rectangular, elliptical, or D-shaped. When the boss 4 is embedded in the corresponding groove 3, the non-circular contact surface can completely prevent the pressure head 2 from rotating around the axis of the pressing body 1 during operation, thereby ensuring that the pressing direction is always controllable and stable.

[0025] On the pressing surface 21 of the detachable pressing head 2, there are multiple micropores 23 extending through its thickness. These micropores 23 are not decorative; their core function is to provide a vertical flow channel for molten paraffin while pressing the tissue. The paraffin can smoothly pass through these micropores 23, fully wet the pressed tissue, and eventually reach the bottom of the embedding cassette.

[0026] Regarding the size of the micropores 23, their diameter is preferably designed to be within the range of 2 mm to 5 mm. This diameter range can provide optimal paraffin flow efficiency while ensuring that the pressing surface 21 has sufficient structural strength to flatten the tissue. If the diameter is too small, it is easily blocked; if it is too large, it may affect the uniformity of flattening.

[0027] To meet the needs of pathology departments in processing tissue samples of different sizes and types, the detachable indenter 2 of this invention is designed to be available in multiple sizes. Different sizes of indenters 2 differ in the outer diameter of their holding surface 21 and / or the diameter of the micropores 23 provided on them. For example, a small indenter with a diameter of 14 mm can be used to process puncture strips, while a large indenter with a diameter of 23 mm can be used to process larger tissue blocks. Simultaneously, each size of indenter can be equipped with micropores 23 of different diameters to accommodate paraffin or tissue with varying viscosities. All sizes of indenters 2 are used in conjunction with the same holding body 1 through a unified detachable connection structure, achieving tool versatility and high efficiency.

[0028] Example 2

[0029] Another tissue embedding press is provided. Its basic components are the same as those in Embodiment 1, including a rod-shaped press body 1 and a detachable press head 2 with a flat press surface 21. The two are also quickly connected by a magnetic attraction assembly, that is, the press body 1 has a first magnetic attraction part 11 at the connecting end, and the detachable press head 2 has a second magnetic attraction part 22.

[0030] The main difference between this embodiment and Embodiment 1 lies in the arrangement of the mechanical limiting component. In Embodiment 2, the mechanical limiting component includes a boss 4 disposed on the end face of the connecting end of the pressing body 1, and a groove 3 disposed on the upper surface of the detachable pressing head 2 and matching the shape of the boss 4. Similarly, the cross-sectional profile of the boss 4 is non-circular. When the first magnetic attraction part 11 and the second magnetic attraction part 22 attract each other, the boss 4 is embedded in the groove 3, thereby achieving anti-rotation and limiting. This method of setting the boss 4 on the body 1 and the groove 3 on the pressing head 2 is a symmetrical equivalent scheme of Embodiment 1, which can also achieve a stable connection effect.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tissue embedding retainer, characterized in that, It includes a pressing body (1), which is rod-shaped, with one end being a hand-held part and the other end being a connecting end; it also includes a detachable pressing head (2), which has a flat pressing surface (21). A detachable connection structure is provided between the connecting end of the pressing body (1) and the detachable pressing head (2) to connect the pressing head (2) to the connecting end of the pressing body (1).

2. The tissue embedding retainer according to claim 1, characterized in that, The detachable connection structure includes a magnetic suction assembly, which includes a first magnetic suction part (11) disposed at the connection end of the pressing body (1) and a second magnetic suction part (22) disposed on the detachable pressing head (2). The first magnetic suction part (11) and the second magnetic suction part (22) are arranged facing each other and attract each other.

3. The tissue embedding retainer according to claim 2, characterized in that, The detachable connection structure also includes a mechanical limiting component, which cooperates with the magnetic suction component.

4. The tissue embedding retainer according to claim 3, characterized in that, The mechanical limiting component includes a boss (4) and a groove (3) that matches the shape of the boss (4).

5. The tissue embedding retainer according to claim 4, characterized in that, The boss (4) is disposed on the detachable pressure head (2), and the groove (3) is disposed on the connecting end face of the pressure body (1).

6. The tissue embedding retainer according to claim 4, characterized in that, The boss (4) is provided on the connecting end face of the pressing body (1), and the groove (3) is provided on the detachable pressing head (2).

7. The tissue embedding retainer according to claim 1, characterized in that, The detachable pressure head (2) has a plurality of micro-holes (23) extending through its thickness on the pressing surface (21).

8. The tissue embedding retainer according to claim 7, characterized in that, The pore size of the plurality of micropores (23) is between 2 mm and 5 mm.

9. The tissue embedding retainer according to claim 7, characterized in that, The detachable pressure head (2) has various specifications, and the outer diameter of the pressing surface (21) and / or the aperture of the micro-holes (23) provided on the detachable pressure head (2) of different specifications are different.

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