Biological tissue paraffin embedding machine

Abstract

The present application relates to a biological tissue paraffin embedding machine, and relates to the field of embedding machines, the biological tissue paraffin embedding machine comprises an embedding machine body, the embedding machine body is provided with a paraffin guide pipe, and the paraffin guide pipe is internally provided with a control assembly for controlling the outflow of a paraffin liquid. The method has the effect of improving the paraffin embedding efficiency of the biological tissue.

Description

Technical Field

[0001] The present application relates to the field of embedding machines, and in particular to a biological tissue paraffin embedding machine. Background Art

[0002] An embedding machine, also known as a biological tissue embedding machine or a paraffin embedding machine, is a medical device that embeds human or animal and plant specimens after dehydration and wax immersion for histological diagnosis or research after sectioning. The principle is to place the biological tissue block in melted paraffin, fix it with paraffin, and then use a slicer to cut the tissue into thin slices for research.

[0003] Currently available paraffin embedding machines usually use a manual switch to add wax liquid. Usually, the experimenter holds the embedding bottom mold in his left hand and pushes the manual switch on the operating table with his right hand to inject liquid into the embedding bottom mold, and then uses tweezers held in his right hand to adjust the position of the tissue in the embedding bottom mold.

[0004] Since the wax liquid exerts force on the biological tissue, the biological tissue placed in the middle of the embedding bottom mold is displaced, and the position needs to be adjusted many times to make it in the middle of the embedding bottom mold, which is inefficient. Utility Model Content

[0005] In order to improve the problem of low embedding efficiency caused by the need to adjust the position of biological tissue in the embedding bottom mold multiple times during wax injection, the present application provides a biological tissue paraffin embedding machine.

[0006] The present application provides a biological tissue paraffin embedding machine that adopts the following technical solution:

[0007] A biological tissue paraffin embedding machine, comprising an embedding machine body, a wax guide tube disposed on the embedding machine body, and a control component for controlling the outflow of wax liquid disposed in the wax guide tube

[0008] Furthermore, the control component includes a guide tube and a piston arranged in the guide tube, the piston is fixedly connected to the wax guide tube through a connecting plate, a first limit plate and a second limit plate are arranged on the guide tube along the axial direction, a fixed plate is arranged at the end of the wax guide tube, the fixed plate is arranged between the first limit plate and the second limit plate, a spring is arranged between the connecting plate and the first limit plate, a wax outlet is arranged on the peripheral wall of the guide tube, and the wax outlet is arranged between the first limit plate and the second limit plate.

[0009] Furthermore, the connecting plate is provided with a through hole.

[0010] Furthermore, a heating wire is embedded in the wall of the wax guide tube.

[0011] Furthermore, the wax outlet is provided with an inclined surface close to the inner wall of the guide tube.

[0012] Furthermore, a rubber pad is arranged on the peripheral wall of the piston, and the outer wall of the rubber pad is in contact with the inner wall of the guide tube.

[0013] Furthermore, one end of the guide tube away from the wax guide tube is threadedly connected with a flow guide tube.

[0014] Furthermore, a plurality of pressing teeth are provided at the end of the flow guide tube away from the wax guide tube, and an outflow channel for the wax liquid to flow out is provided between two adjacent pressing teeth.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. When wax is injected into the embedding bottom mold with biological tissue placed thereon, the pressing teeth are used to directly contact the biological tissue and position the biological tissue in the middle of the embedding bottom mold. At this time, the experimenter moves the embedding bottom mold together with the guide tube in the direction close to the wax guide tube, so that the wax outlet and the inside of the wax guide tube are connected, and the melted wax liquid enters the guide tube from the wax outlet, and then enters the outflow channel from the guide tube and flows into the embedding bottom mold. When the wax injection is completed, the biological tissue remains in the middle of the embedding bottom mold, reducing the number of adjustments, which is conducive to improving the embedding efficiency of the biological tissue;

[0017] 2. Use the inclined surface to make the wax liquid in the guide tube flow down from the inclined surface when the wax outlet and the inside of the wax guide tube are separated, and try to avoid the wax liquid overflowing from the wax outlet to the outer wall of the guide tube;

[0018] 3. Use the heating wire to heat the wax liquid in the wax guide tube to avoid condensation of the wax liquid in the wax guide tube, which will affect the embedding effect of the biological tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a biological tissue paraffin embedding machine in an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the overall structure of the control component used to reflect the embodiment of the present application.

[0021] Figure 3 for Figure 2 Section view along plane AA.

[0022] Explanation of the reference numerals: 1. embedding machine body; 2. connecting arm; 3. wax guide tube; 4. control assembly; 41. guide tube; 42. piston; 5. connecting plate; 6. rubber pad; 7. through hole; 8. first limit plate; 9. second limit plate; 10. fixing plate; 11. spring; 12. wax outlet; 13. inclined surface; 14. heating wire; 15. guide tube; 16. pressing tooth; 17. outflow channel; 18. connecting column; 19. scraper. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 This application is described in further detail.

[0024] The embodiment of the present application discloses a biological tissue paraffin embedding machine.

[0025] Reference Figure 1 and Figure 2 A biological tissue paraffin embedding machine includes an embedding machine body 1, a connecting arm 2 extends from the embedding machine body 1, a wax guide tube 3 is fixedly connected to the bottom wall of the connecting arm 2 away from the embedding machine body 1, a wax outlet channel connected to the wax guide tube 3 is arranged in the connecting arm 2, and a control component 4 for controlling the outflow of wax liquid is arranged in the wax guide tube 3.

[0026] Reference Figure 2 and Figure 3 The control component 4 includes a guide tube 41 and a piston 42 arranged in the guide tube 41. The piston 42 is fixedly connected to the wax guide tube 3 through a connecting plate 5. The piston 42 and the connecting plate 5 are fixedly connected by a connecting column 18. A rubber pad 6 is arranged on the peripheral wall of the piston 42. The outer wall of the rubber pad 6 fits the inner wall of the guide tube 41. A plurality of through holes 7 are arranged on the connecting plate 5. The through holes 7 are used to connect the wax guide tube 3. A first limiting plate 8 and a second limiting plate 9 are arranged along the axial direction on the guide tube 41. In this embodiment, the first limiting plate 8 and the second limiting plate 9 are both arranged in an annular shape. The first limiting plate 8 and the second limiting plate 9 are coaxially fixedly connected with the guide tube 41. A fixing plate 10 is arranged on the end wall of the wax guide tube 3 away from the connecting arm 2. The fixing plate 10 is arranged between the first limiting plate 8 and the second limiting plate 9. A scraper 19 is arranged on the inner peripheral wall of the fixing plate 10. The scraper 19 is used to scrape the wax liquid on the outer wall of the guide tube 41 back into the wax guide tube 3. A spring 11 is arranged between the connecting plate 5 and the first limiting plate 8, a wax outlet 12 is arranged on the peripheral wall of the guide tube 41, and the wax outlet 12 is arranged between the first limiting plate 8 and the second limiting plate 9. In this embodiment, a plurality of wax outlets 12 are arranged along the peripheral wall of the guide tube 41, and each wax outlet 12 is provided with an inclined surface 13 close to the inner wall of the guide tube 41.

[0027] The inclined surface 13 allows the wax liquid in the guide tube 41 to flow down the inclined surface 13 when the wax outlet 12 is separated from the wax guide tube 3 , thereby preventing the wax liquid from overflowing from the wax outlet 12 to the outer wall of the guide tube 41 as much as possible.

[0028] Reference Figure 3 A heating wire 14 is embedded in the wall of the wax guide tube 3, and the heating wire 14 is used to heat the wax liquid in the wax guide tube 3 to avoid condensation of the wax liquid in the wax guide tube 3 as much as possible, thereby affecting the embedding effect of the biological tissue.

[0029] Reference Figure 3 One end of the guide tube 41 away from the wax guide tube 3 is threadedly connected to the guide tube 15, and the end of the guide tube 15 away from the wax guide tube 3 is provided with a plurality of pressing teeth 16. The plurality of pressing teeth 16 are evenly distributed along the circumference of the wax guide tube 3, and an outflow channel 17 for the wax liquid to flow out is provided between two adjacent pressing teeth 16.

[0030] When wax is injected into the embedding bottom mold containing biological tissue, the pressing teeth 16 are used to directly contact the biological tissue to position the biological tissue in the middle of the embedding bottom mold. At this time, the experimenter moves the embedding bottom mold together with the guide tube 41 in the direction close to the wax guide tube 3, so that the wax outlet 12 and the inside of the wax guide tube 3 are connected, and the melted wax liquid enters the guide tube 41 from the wax outlet 12, and then enters the outflow channel 17 from the guide tube 41 to flow into the embedding bottom mold. After the wax injection is completed, the biological tissue remains in the middle of the embedding bottom mold, reducing the number of adjustments, which is beneficial to improving the embedding efficiency of the biological tissue; the threaded connection is used to facilitate the removal of the guide tube 15 for cleaning and disinfection.

[0031] The implementation principle of a biological tissue paraffin embedding machine in an embodiment of the present application is as follows: when wax is injected into the embedding bottom mold with the biological tissue placed therein, the pressing teeth 16 are used to directly contact the biological tissue to position the biological tissue in the middle of the embedding bottom mold. At this time, the experimenter moves the embedding bottom mold together with the guide tube 41 in a direction close to the wax guide tube 3, so that the wax outlet 12 and the inside of the wax guide tube 3 are connected, and the melted wax liquid enters the guide tube 41 from the wax outlet 12, and then enters the outflow channel 17 from the guide tube 41 to flow into the embedding bottom mold. When the wax injection is completed, the experimenter moves the embedding bottom mold in a direction away from the connecting arm 2. At this time, the guide tube 41 moves in a direction away from the connecting arm 2 under the action of the spring 11 until the wax outlet 12 is detached from the inside of the wax guide tube 3, and the bottom surface of the first limiting plate 8 and the top surface of the fixed plate 10 are in contact. At this time, the wax injection stops, and the biological tissue remains in the middle of the embedding bottom mold, reducing the number of adjustments, which is beneficial to improving the embedding efficiency of the biological tissue. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A biological tissue paraffin embedding machine, characterized in that: The invention comprises an embedding machine body (1), wherein a wax guide tube (3) is arranged on the embedding machine body (1), and a control component (4) for controlling the outflow of wax liquid is arranged in the wax guide tube (3); The control component (4) comprises a guide tube (41) and a piston (42) arranged in the guide tube (41); the piston (42) is fixedly connected to the wax guide tube (3) via a connecting plate (5); a first limit plate (8) and a second limit plate (9) are arranged on the guide tube (41) along the axial direction; a fixing plate (10) is arranged at the end of the wax guide tube (3); the fixing plate (10) is arranged between the first limit plate (8) and the second limit plate (9); a spring (11) is arranged between the connecting plate (5) and the first limit plate (8); a wax outlet (12) is arranged on the peripheral wall of the guide tube (41); the wax outlet (12) is arranged between the first limit plate (8) and the second limit plate (9).

2. A biological tissue paraffin embedding machine according to claim 1, characterized in that: The connecting plate (5) is provided with a through hole (7).

3. A biological tissue paraffin embedding machine according to claim 1, characterized in that: A heating wire (14) is embedded in the wall of the wax guide tube (3).

4. A biological tissue paraffin embedding machine according to claim 1, characterized in that: The wax outlet (12) is provided with an inclined surface (13) close to the inner wall of the guide tube (41).

5. A biological tissue paraffin embedding machine according to claim 1, characterized in that: A rubber pad (6) is provided on the peripheral wall of the piston (42), and the outer wall of the rubber pad (6) is in contact with the inner wall of the guide tube (41).

6. A biological tissue paraffin embedding machine according to claim 1, characterized in that: One end of the guide tube (41) away from the wax guide tube (3) is threadedly connected to a flow guide tube (15).

7. A biological tissue paraffin embedding machine according to claim 6, characterized in that: A plurality of pressing teeth (16) are provided at the end of the flow guide tube (15) away from the wax guide tube (3), and an outflow channel (17) for the wax liquid to flow out is provided between two adjacent pressing teeth (16).

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