A pathological tissue paraffin embedding device

Abstract

The application discloses pathological tissue paraffin embedding device, relates to the technical field of medical devices, and relates to embedding forceps, a pressing block and a temperature controller, wherein the embedding forceps comprise a forceps handle and two forceps arms; the two forceps arms are in heat conduction connection with the forceps handle; the pressing block comprises a flattening end face, the flattening end face is used for flattening pathological tissue, one side of the pressing block, which is away from the flattening end face, is detachably connected with an end of the forceps handle, which is away from the forceps arms, and the pressing block and the forceps handle are in heat conduction contact in the connected state; and the temperature controller is in heat conduction connection with the forceps handle through a heat conduction wire. Wherein the flattening end face is provided with a first anti-sticking layer with micro-texture, and the pressing block is provided with exhaust grooves on the peripheral side. In the application, the pressing block is detachably connected with the embedding forceps, the embedding forceps can be rotated by 180 degrees to be operated by using the pressing block, the operation is simple and convenient, and the working efficiency can be improved; and the embedding forceps and the temperature controller are designed to be separated, are connected through the heat conduction wire, the embedding forceps are simple in structure, long in service life and low in maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, specifically to a paraffin embedding device for pathological tissue. Background Technology

[0002] Currently, pathological diagnosis is a definitive and authoritative diagnosis. It involves morphological observation of paraffin sections of routine pathological tissue, supplemented by techniques such as histochemical staining, immunohistochemical detection, and molecular biological testing when necessary, to make an accurate diagnosis. Among these techniques, paraffin embedding of pathological tissue is fundamental to pathological diagnosis. Paraffin embedding involves placing fixed, dehydrated, cleared, and paraffin-impregnated pathological tissue into an embedding mold filled with molten paraffin using embedding forceps. After the paraffin solidifies, a wax block with a certain hardness and toughness is obtained.

[0003] Authorization announcement number CN 217424929 U discloses a paraffin tissue embedding forceps, which includes a forceps handle, two forceps arms, two forceps tips, and a flattening mechanism. The two forceps tips are internally equipped with heating elements and temperature-sensing resistors, respectively. The forceps handle contains a temperature controller and a battery. The surface of the forceps handle is equipped with a display screen and a heating switch. One forceps arm has an illumination lamp and an illumination lamp switch on its outer surface, and the other forceps arm has a button for adjusting the temperature on its outer surface. During operation, after pressing the tissue, the flattening mechanism needs to be separated from the embedding forceps. The embedding forceps are then used to hold the embedding cassette over a mold, allowing the paraffin to solidify on the embedding cassette after freezing. Finally, the tissue is demolded to obtain the paraffin-embedded block. The entire operation involves assembling and disassembling the flattening mechanism with the forceps handle, and then using the two forceps tips separately to hold the embedding cassette. The process is cumbersome and inefficient. Furthermore, a temperature controller and a battery are installed inside the forceps handle, and a display and a heating switch are installed on the surface of the forceps handle. Although heating can prevent the forceps tip from sticking to liquid paraffin or pathological tissue, this results in a complex internal structure of the embedding forceps, high maintenance costs, short service life, and a large overall size, weight, and poor operability and flexibility.

[0004] Therefore, there is an urgent need to design a paraffin embedding device for pathological tissues that is easy to operate, improves work efficiency, and has low maintenance costs. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a paraffin embedding device for pathological tissues.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A paraffin embedding device for pathological tissue, comprising:

[0008] An embedding forceps, comprising a handle and two arms; the two arms are thermally connected to the handle.

[0009] The pressing block includes a flattening end face for flattening pathological tissue. The side of the pressing block away from the flattening end face is detachably connected to the end of the forceps handle away from the forceps arm, and the pressing block and the forceps handle are in thermally conductive contact when connected.

[0010] A temperature controller is thermally connected to the tweezer handle via a heat-conducting wire.

[0011] Optionally, a plug rod is vertically connected to the side of the pressure block away from the flattened end face, and a groove is provided at the end of the tweezer handle for inserting the plug rod. The plug rod and the tweezer handle are magnetically connected.

[0012] Optionally, the center of the flattened end face is located on the axis of the plug rod.

[0013] Optionally, the flattened end face is provided with a first anti-stick layer with a fine texture.

[0014] Optionally, the circumferential sidewall of the pressing block is provided with venting grooves that extend to the flattened end face.

[0015] Optionally, the tweezers arm includes a connecting end and a clamping end, the connecting end being connected to the tweezers handle; the two clamping ends are provided with a second anti-stick layer with fine particles on their sidewalls close to each other.

[0016] Optionally, an insulating and heat-insulating layer is provided at the middle position of the outer wall of the tweezers arm.

[0017] Optionally, both the tweezer handle and the tweezer arm are solid structures.

[0018] Optionally, a storage tray is also included, which includes a first storage area and a second storage area. The first storage area is used to store embedding forceps, and the second storage area is used to store pressing blocks.

[0019] Optionally, the first storage area has insertion holes for inserting the two tweezer arms.

[0020] The technical solution provided by this utility model has the following beneficial effects:

[0021] 1. The clamping block is detachably connected to the end of the forceps handle away from the forceps arm. When using it, simply rotate the embedding forceps 180° to use the clamping block for operation. The operation is simple and convenient, which can improve work efficiency. In addition, the clamping block and the forceps handle are detachably connected by magnetic attraction, which is convenient for installation or removal.

[0022] 2. Heating the forceps handle via a temperature controller allows the clamping block to heat simultaneously. This prevents the forceps from adhering to the paraffin or pathological tissue when holding the pathological tissue and placing it into the embedding mold containing liquid paraffin. Similarly, it also prevents the clamping block from adhering to the paraffin or pathological tissue. Furthermore, the separate design of the temperature controller and the embedding forceps, with heat conduction only through a heat-conducting wire, results in a simple structure, long service life, and low maintenance costs for the embedding forceps.

[0023] 3. A first anti-adhesion layer with fine texture is provided on the flattened end face to prevent the block from adhering to the pathological tissue and to drain liquid paraffin and air, preventing the paraffin block from generating air bubbles;

[0024] 4. The gripping end of the tweezers arm is provided with a second anti-stick layer with microparticles. The microparticle structure reduces the contact area and enhances the anti-stick effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the embedding forceps, pressing block, and temperature controller in this embodiment;

[0026] Figure 2 This is a schematic diagram of the pressure block in this embodiment;

[0027] Figure 3 This is a schematic diagram of the storage disk in this embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Embedding forceps; 11. Forceps handle; 111. Groove; 12. Forceps arm; 121. Connecting end; 122. Clamping end; 123. Second anti-adhesion layer; 124. Insulating and heat-insulating layer; 2. Pressing block; 21. Flattened end face; 22. Insertion rod; 23. First anti-adhesion layer; 24. Exhaust groove; 3. Temperature controller; 31. Heating wire; 32. Display screen; 33. Temperature adjustment switch; 34. Timer switch; 4. Storage tray; 41. First storage area; 411. Insertion hole; 42. Second storage area. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-3This embodiment provides a paraffin embedding device for pathological tissue, including embedding forceps 1, a pressing block 2, a temperature controller 3, and a storage tray 4. The embedding forceps 1 includes a handle 11 and two forceps arms 12 connected to the handle 11. The embedding forceps 1 is made of thermally conductive metal, and the forceps arms 12 are integrally connected to the handle 11 to achieve thermal conductivity between them. The pressing block 2 includes a flattening end face 21 for flattening the pathological tissue. The side of the pressing block 2 away from the flattening end face 21 is detachably connected to the end of the handle 11 away from the forceps arms 12, and the pressing block 2 and the embedding forceps 1 are in thermally conductive contact when connected. The temperature controller 3 is thermally connected to the handle 11 via a heat-conducting wire 31. The heat-conducting wire 31 is detachably connected to the handle 11 to facilitate maintenance or replacement of the embedding forceps 1.

[0032] Before embedding pathological tissue in paraffin, the operator can directly install the pressure block 2 on the forceps handle 11 and heat the embedding forceps 1 using the temperature controller 3. At the same time, the heat can be transferred to the pressure block 2 to heat the pressure block 2. After injecting liquid paraffin into the embedding mold, the embedding forceps 1 is used to clamp the pathological tissue into the appropriate embedding mold. The embedding forceps 1 is rotated 180°, and the pressure block 2 is used to press the pathological tissue for 1-2 seconds to flatten the pathological tissue. Finally, the embedding forceps 1 is rotated 180° again, and the embedding box is used to hold the embedding forceps 1 and cover the embedding mold, so that the liquid paraffin solidifies on the embedding box after freezing, and then the tissue is demolded. During this process, the temperature controller 3 heats the forceps handle 11, which in turn heats the pressure block 2, eliminating the need for separate heating of the pressure block 2. This prevents the embedding forceps 1 from adhering to the paraffin or pathological tissue when holding the pathological tissue and placing it into the embedding mold containing liquid paraffin; it also prevents the pressure block 2 from adhering to the paraffin or pathological tissue when pressing it. Furthermore, the pressure block 2 does not affect the normal use of the embedding forceps 1 during use; simply rotating the embedding forceps 1 180° allows for operation with the pressure block 2, making operation simple and convenient and improving work efficiency. In addition, the temperature controller 3 is designed separately from the embedding forceps 1, with heat conduction only through the heating wire 31. The embedding forceps 1 has a simple structure, long service life, and low maintenance costs.

[0033] Furthermore, a connecting rod 22 is vertically connected to the side of the pressure block 2 facing away from the flattening end face 21. A groove 111 for inserting the connecting rod 22 is provided at the end of the forceps handle 11, and the connecting rod 22 is magnetically connected to the forceps handle 11. This allows for quick installation or removal of the pressure block 2 from the forceps handle 11, improving work efficiency. In addition, the center of the flattening end face 21 is located on the axis of the connecting rod 22, making the force exerted by the pressure block 2 on the pathological tissue more uniform when pressing it. In this embodiment, when the pressure block 2 is connected to the forceps handle 11, the flattening end face 21 is perpendicular to the forceps handle 11.

[0034] Furthermore, a first anti-adhesion layer 23 is plated on the flattened end face 21, and the first anti-adhesion layer 23 has a fine texture. The pressing block 2 can be made of aluminum alloy, and the first anti-adhesion layer 23 can be generated on the aluminum surface through electrolysis to form a porous oxide layer, in which the natural pore structure of the aluminum oxide forms the fine texture. This further prevents the pressing block 2 from adhering to pathological tissue, and the fine texture of the first anti-adhesion layer 23 can drain liquid paraffin and air, preventing the paraffin block from becoming hollow.

[0035] Furthermore, the pressing block 2 has venting grooves 24 spaced along its circumferential sidewalls, extending to the flattening end face 21. When the pressing block 2 flattens the pathological tissue in the liquid paraffin at its flattening end face 21, the venting grooves 24 can drain the liquid paraffin and air, preventing the formation of air bubbles inside the paraffin block. In this embodiment, the flattening end face 21 is a square structure with a side length of 2 cm. The venting grooves 24 are straight and perpendicular to the flattening end face 21. The width and depth of the venting grooves 24 are both set to 1 mm.

[0036] Furthermore, the forceps arm 12 includes a connecting end 121 and a clamping end 122, with the connecting end 121 integrally connected to the forceps handle 11. A second anti-adhesion layer 123 is provided on the sidewalls of both clamping ends 122, close to each other. The second anti-adhesion layer 123 contains fine particles. The second anti-adhesion layer 123 can be coated with tungsten carbide or diamond using a thermal spraying process. The microparticle structure reduces the contact area and enhances the anti-adhesion effect. Both the forceps handle 11 and the forceps arm 12 are solid structures to ensure the service life of the embedding forceps 1. The forceps handle 11 adopts a cylindrical structure or other cylindrical structure. In this embodiment, when the embedding forceps 1 is installed and connected to the pressure block 2, the distance from the clamping end 122 to the pressure surface end 21 is 18 cm.

[0037] Furthermore, the middle part of the outer wall of the tweezers arm 12 is covered with an insulating and heat-insulating layer 124. The operator can pinch the part of the tweezers arm 12 covered with the insulating and heat-insulating layer 124 to avoid being burned.

[0038] Furthermore, the storage tray 4 includes a first storage area 41 and a second storage area 42. The first storage area 41 is used to store the embedding forceps 1, and the second storage area 42 is used to store the clamping blocks 2. The first storage area 41 has an insertion hole 411 for inserting the clamping end 122 of the forceps arm 12. The second storage area 42 is configured as a groove structure. Multiple clamping blocks 2 are configured, and different sizes of clamping blocks 2 can be configured to adapt to different sizes of embedding molds and different sizes of pathological tissues. With the setting of the storage tray 4, the embedding forceps 1 can be directly pulled out from the insertion hole 411, and then rotated 180° so that the forceps handle 11 is magnetically connected to the insertion rod 22 on the corresponding clamping block 2, which is convenient and simple to use.

[0039] Furthermore, the temperature controller 3 is equipped with a display screen 32, a temperature adjustment switch 33, and a timer switch 34. The temperature controller 3 can control the temperature of the embedding forceps 1. The temperature controller 3 can be connected to an external power supply or have an internal power supply to heat the embedding forceps 1. The display screen 32 can display heating time, heating temperature, etc. The temperature adjustment switch 33 is used to control the heating temperature. The timer switch 34 can be used to time the heating period. The temperature controller 3 can also be timed to turn on and off, i.e., to set the start-up or shutdown time.

[0040] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A paraffin embedding device for pathological tissue, characterized in that, include: An embedding forceps, the embedding forceps comprising a handle and two forceps arms; The two tweezer arms are thermally connected to the tweezer handle; The pressing block includes a flattening end face for flattening pathological tissue. The side of the pressing block away from the flattening end face is detachably connected to the end of the forceps handle away from the forceps arm, and the pressing block and the forceps handle are in thermally conductive contact when connected. A temperature controller is thermally connected to the tweezer handle via a heat-conducting wire.

2. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: The side of the pressure block opposite to the flattened end face is vertically connected to a plug rod, and the end of the tweezer handle is provided with a groove for inserting the plug rod. The plug rod and the tweezer handle are magnetically connected.

3. The paraffin embedding device for pathological tissue according to claim 2, characterized in that: The center of the flattened end face is located on the axis of the plug rod.

4. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: The flattened end face is provided with a first anti-sticking layer with fine texture.

5. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: The circumferential sidewall of the pressing block is provided with venting grooves that extend to the flattened end face.

6. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: The tweezers arm includes a connecting end and a clamping end, the connecting end being connected to the tweezers handle; the two clamping ends are provided with a second anti-stick layer with fine particles on their sidewalls close to each other.

7. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: An insulating and heat-insulating layer is provided in the middle of the outer wall of the tweezers arm.

8. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: Both the tweezer handle and the tweezer arm are solid structures.

9. The paraffin embedding device for pathological tissue according to claim 1, characterized in that: It also includes a storage tray, which includes a first storage area and a second storage area. The first storage area is used to store embedding forceps, and the second storage area is used to store pressing blocks.

10. A paraffin embedding device for pathological tissue according to claim 9, characterized in that: The first storage area has insertion holes for inserting the two tweezer arms.

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