Automatic demolding device for pathological paraffin embedded tissue

Abstract

The utility model provides an automatic demoulding device for pathological paraffin embedding tissues, which comprises a dewaxing table, the upper end of the dewaxing table is sunken downwards to form a dewaxing groove matched with the shape of a bottom membrane of an embedding box, an electric heating sheet is arranged on the outer wall of the dewaxing groove in the dewaxing table, a support column is upwards arranged at the upper end of the dewaxing table, and the lower end of the dewaxing table is connected with the support column. A mounting table located above the dewaxing groove is horizontally arranged at the upper end of the supporting column, a telescopic motor is downwards mounted at the upper end of the mounting table, a connecting strip is arranged at the lower end of a telescopic shaft of the telescopic motor, clamping arms capable of vertically rotating are rotationally connected to the two ends of the connecting strip, and a torsional spring is connected between each clamping arm and the rotating part of the connecting strip; each torsion spring drives the corresponding clamping arm to rotate outwards, an electromagnet is installed at the lower end of the connecting strip, and the inner side of each clamping arm is connected with an iron sheet matched with the electromagnet through a connecting block. The automatic dewaxing device can replace manual work to carry out automatic dewaxing, is convenient and fast, and is not easy to damage a wax block.

Description

Technical Field

[0001] The utility model belongs to the technical field of pathological detection, and relates to an automatic demolding device for paraffin-embedded pathological tissues. Background Art

[0002] In modern pathological research, the paraffin embedding technique is a crucial sample preparation method. This technique is mainly used to fix, support, and protect tissue samples for subsequent section analysis. The traditional paraffin embedding process involves injecting heated and melted paraffin into a special embedding mold, then precisely placing the processed pathological tissue in the center of the mold and ensuring it lies flat on the bottom of the mold. To enable the tissue sample to be evenly distributed in the paraffin and maintain a good morphology, embedding forceps are usually used to gently press it onto the bottom of the mold. Subsequently, an embedding cassette is covered, so that the liquid paraffin completely surrounds the pathological tissue and is isolated from the external air. As the temperature decreases, the paraffin gradually solidifies to form a stable solid structure, namely the pathological tissue wax block.

[0003] However, after completing the above embedding steps, an important subsequent step is how to safely remove the pathological tissue wax block from the embedding mold, and this process is called "demolding". Currently, due to the lack of automated tools or equipment specifically designed for this purpose, clinical laboratories usually rely on manual operations to complete the demolding task. Staff either directly try to separate the wax block from the mold by hand, or use some hard sharp tools to pry the connection point between the two, trying to open enough space to remove the wax block. This method is not only inefficient but also poses a risk of damaging the wax block, which may in turn affect the accuracy of subsequent pathological diagnosis. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an automatic demolding device for paraffin-embedded pathological tissues, which can replace manual labor for automatic dewaxing, is convenient and fast, and is not easy to damage the wax block.

[0005] To solve the above technical problems, the utility model provides an automatic demolding device for paraffin-embedded pathological tissues, including a dewaxing table. A dewaxing groove matching the shape of the bottom film of the embedding cassette is formed by downward depression at the upper end of the dewaxing table. An electric heating sheet is arranged on the outer wall of the dewaxing groove inside the dewaxing table. A support column is arranged upward at the upper end of the dewaxing table. An installation table located above the dewaxing groove is horizontally arranged at the upper end of the support column. A telescopic motor is installed downward at the upper end of the installation table. A connecting bar is arranged at the lower end of the telescopic shaft of the telescopic motor. Clamping arms capable of vertically rotating are rotatably connected to both ends of the connecting bar. A torsion spring is connected between the rotation of each clamping arm and the connecting bar. Each torsion spring drives the corresponding clamping arm to rotate outward. An electromagnet is installed at the lower end of the connecting bar. An iron sheet cooperating with the electromagnet is connected to the inner side of each clamping arm through a connecting block.

[0006] By adopting the above technical solution, after putting the bottom film of the embedding cassette into the dewaxing tank to start automatic dewaxing, the electric heating sheet heats the side wall of the dewaxing tank, transfers the heat to the bottom film of the embedding cassette, melts the paraffin in contact with the bottom film of the embedding cassette, and after a short time, the telescopic motor extends to drive the clamping arm to descend. At the same time, the electromagnet is energized to attract the iron sheet, driving the clamping arm to rotate inward to clamp both sides of the upper end of the wax block in the embedding cassette. Subsequently, the telescopic motor shortens to take out the wax block, completing the demolding. When taking the wax block, after holding the wax block, control the electromagnet to power off, and under the action of the torsion spring, drive the clamping arm to rotate outward to release the embedding cassette.

[0007] The utility model is further arranged such that a rubber clamping strip is arranged at the lower end of each clamping arm.

[0008] The utility model is further arranged such that a plurality of anti-slip grooves are arranged on the inner side of each rubber clamping strip.

[0009] The utility model is further arranged such that each clamping arm is in a V shape with an opening facing inward.

[0010] The utility model is further arranged such that U-shaped rotating seats are arranged at both ends of the connecting strip, a rotating shaft is arranged in each U-shaped rotating seat, U-shaped rotating heads rotatably connected to the corresponding rotating shafts in the corresponding U-shaped rotating seats are arranged at the upper ends of each clamping arm, and each torsion spring is sleeved on the corresponding rotating shaft outside the corresponding U-shaped rotating head.

[0011] The utility model is further arranged such that a limiting strip is arranged on the outer side of each U-shaped rotating seat, and a clamping strip located below the corresponding limiting strip is arranged on the outer side of each U-shaped rotating head.

[0012] The utility model is further arranged such that control buttons are arranged on the outer side of the dewaxing table.

[0013] The utility model is further arranged such that a power cord for power supply is connected to the outer side of the dewaxing table.

[0014] The utility model is further arranged such that the electric heating sheet is a mica electric heating sheet.

[0015] Compared with the prior art, the utility model has the following beneficial effects: By integrating the functions of electric heating and mechanical clamping, it replaces the traditional manual demolding method, realizes an automated dewaxing process, which is not only simple and fast to operate, but also effectively avoids the possible damage to the wax block caused by manual operation, ensuring the integrity of the sample and the reliability of demolding; Using a mica electric heating sheet to quickly heat the bottom film of the embedding cassette, promoting the partial melting of the paraffin, reducing the adhesion between the wax block and the mold, combined with the action of the clamping arm controlled by the telescopic motor and the electromagnet, ensuring that the wax block is firmly clamped without damage, thus significantly improving the efficiency and safety of the demolding work. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a partial cross-sectional view for showing the electric heating sheet on the side wall of the dewaxing tank;

[0018] Figure 3 For showing the connection between the clamping arm and the connecting bar.

[0019] Wherein, 1, dewaxing table; 11, dewaxing tank; 12, support pillar; 13, mounting table; 2, electric heating sheet; 3, telescopic motor; 4, connecting bar; 41, U-shaped rotating seat; 42, rotating shaft; 43, torsion spring; 44, limiting bar; 5, clamping arm; 51, U-shaped rotating head; 52, rubber clamping strip; 53, anti-slip groove; 54, connecting block; 55, iron sheet; 56, clamping strip; 6, electromagnet; 7, control button; 8, power cord. Specific embodiments

[0020] The following further details a kind of automatic demoulding device for pathological paraffin-embedded tissues proposed by the present utility model in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model. The same or similar reference numerals in the drawings represent the same or similar components.

[0021] Embodiment, referring to Figures 1-3 , an automatic demoulding device for pathological paraffin-embedded tissues, includes a dewaxing table 1. The upper end of the dewaxing table 1 is recessed downward to form a dewaxing tank 11 whose shape matches the bottom film of the embedding box. Four electric heating sheets 2 are arranged on the outer wall of the dewaxing tank 11 inside the dewaxing table 1. The electric heating sheets 2 are mica electric heating sheets 2. The inner wall of the dewaxing tank 11 is made of stainless steel material with good heat conduction performance.

[0022] At the upper end of the dewaxing table 1, a support column 12 is arranged upward. At the upper end of the support column 12, a mounting table 13 located above the dewaxing tank 11 is horizontally arranged. At the upper end of the mounting table 13, a telescopic motor 3 is installed downward. At the lower end of the telescopic shaft of the telescopic motor 3, a connecting strip 4 is arranged. At both ends of the connecting strip 4, a clamping arm 5 capable of vertically rotating is rotatably connected. Each clamping arm 5 is in a V shape with the opening facing inward. At both ends of the connecting strip 4, a U-shaped rotating seat 41 is arranged. Inside each U-shaped rotating seat 41, a rotating shaft 42 is arranged. At the upper end of each clamping arm 5, a U-shaped rotating head 51 rotatably connected to the corresponding rotating shaft 42 in the corresponding U-shaped rotating seat 41 is arranged. Inside each U-shaped rotating head 51, a torsion spring 43 sleeved on the corresponding rotating shaft 42 is arranged. Each torsion spring 43 drives the corresponding clamping arm 5 to rotate outward. On the outer side of each U-shaped rotating seat 41, two limiting strips 44 are arranged. On the outer side of each U-shaped rotating head 51, two clamping strips 56 located below the corresponding limiting strips 44 are arranged to prevent the clamping arm 5 from rotating outward by too large an angle.

[0023] At the lower end of each clamping arm 5, a rubber clamping strip 52 is arranged. Inside each rubber clamping strip 52, a number of anti-slip grooves 53 are arranged. At the lower end of the connecting strip 4, an electromagnet 6 is installed. Inside each clamping arm 5, a iron sheet 55 cooperating with the electromagnet 6 is connected through a connecting block 54. After the electromagnet 6 is powered on, it attracts the iron plate, causing the clamping arm 5 to rotate inward. On the outer side of the dewaxing table 1, two control buttons 7 are arranged. One of the control buttons 7 controls automatic dewaxing, and the other control button 7 controls releasing the wax block. The outer side of the dewaxing table 1 is connected with a power cord 8 for power supply.

[0024] Working principle: After placing the bottom film of the embedding cassette into the dewaxing tank 11 and starting automatic dewaxing, the electric heating sheet 2 heats the side wall of the dewaxing tank 11, transfers the heat to the bottom film of the embedding cassette, melts the paraffin in contact with the bottom film of the embedding cassette, and after a short time, the telescopic motor 3 extends to drive the clamping arm 5 to descend. At the same time, the electromagnet 6 is powered on to attract the iron sheet 55, driving the clamping arm 5 to rotate inward, so that the two rubber clamping strips 52 clamp both sides of the upper end of the wax block of the embedding cassette. Subsequently, the telescopic motor 3 shortens to take out the wax block and complete the demoulding. When taking the wax block, after holding the wax block, control the electromagnet 6 to cut off the power, and under the action of the torsion spring 43, drive the clamping arm 5 to rotate outward to release the embedding cassette.

[0025] It should be noted that the various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0026] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention according to the above disclosure are within the protection scope of the claims.

Claims

1. An automatic tissue demoulding device for pathological paraffin embedding, comprising a dewaxing table (1), characterized in that, The upper end of the dewaxing table (1) is recessed downward to form a dewaxing groove (11) that matches the shape of the bottom film of the embedding cassette. An electric heating sheet (2) is provided on the outer wall of the dewaxing groove (11) inside the dewaxing table (1). A support column (12) is provided upward at the upper end of the dewaxing table (1). An installation table (13) located above the dewaxing groove (11) is horizontally provided at the upper end of the support column (12). A telescopic motor (3) is installed downward at the upper end of the installation table (13). A connecting bar (4) is provided at the lower end of the telescopic shaft of the telescopic motor (3). Clamping arms (5) capable of vertically rotating are rotatably connected to both ends of the connecting bar (4). A torsion spring (43) is connected between the rotation of each clamping arm (5) and the connecting bar (4). Each torsion spring (43) drives the corresponding clamping arm (5) to rotate outward. An electromagnet (6) is installed at the lower end of the connecting bar (4). An iron sheet (55) that cooperates with the electromagnet (6) is connected to the inner side of each clamping arm (5) through a connecting block (54).

2. The automatic tissue demoulding device for pathological paraffin embedding according to claim 1, wherein A rubber clamping strip (52) is provided at the lower end of each clamping arm (5).

3. The automatic demoulding device for pathological paraffin-embedded tissue according to claim 2, wherein, A number of anti-slip grooves (53) are provided on the inner side of each rubber clamping strip (52).

4. An automatic tissue demoulding device for pathological paraffin embedding according to claim 1, characterized in that, Each clamping arm (5) is in a V shape with the opening facing inward.

5. An automatic demoulding device for pathological paraffin-embedded tissues according to claim 1, characterized in that U-shaped rotating seats (41) are provided at both ends of the connecting bar (4). A rotating shaft (42) is provided inside each U-shaped rotating seat (41). U-shaped rotating heads (51) that are rotatably connected to the corresponding rotating shafts (42) inside the corresponding U-shaped rotating seats (41) are provided at the upper ends of each clamping arm (5). Each torsion spring (43) is sleeved on the corresponding rotating shaft (42) inside and outside the corresponding U-shaped rotating head (51).

6. The automatic tissue de-molding device for pathological paraffin embedding according to claim 5, wherein, A limiting strip (44) is provided on the outer side of each U-shaped rotating seat (41). A clamping strip (56) located below the corresponding limiting strip (44) is provided on the outer side of each U-shaped rotating head (51).

7. An automatic tissue demoulding device for pathological paraffin-embedded tissues according to claim 1, characterized in that, Control buttons (7) are provided on the outer side of the dewaxing table (1).

8. An automatic tissue demoulding device for pathological paraffin-embedded tissues according to claim 1, characterized in that, A power cord (8) for power supply is connected to the outer side of the dewaxing table (1).

9. The automatic tissue demoulding device for pathological paraffin embedding according to claim 1, wherein, The electric heating sheet (2) is a mica electric heating sheet (2).

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