Simulated scalp and face making method and training model thereof
By adjusting the proportion of liquid silicone and other raw materials, and using an integrated molding process, a simulated scalp and face with high simulation degree and no deformation after repeated disassembly is prepared, which solves the problem of insufficient light transmittance of simulated skin and head model skin in the existing technology. It solves the problem of easy deformation and realizes efficient medical teaching simulation.
Patent Information
- Application Number
- CN202411407587.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-01-24
AI Technical Summary
In the existing medical teaching models, the light transmittance of the simulated skin is insufficient, which affects the authenticity of the cyanosis effect. At the same time, the skin of the existing head model is difficult to disassemble multiple times and is prone to deformation, which cannot meet various teaching needs.
By adjusting the ratio of liquid silicone R6010B, R6010A, fluorescent powder, pigment, titanium dioxide and silicone powder, use an integrated molding process to prepare the skin of the scalp, combined with the skull model and the oral sealing strip, to achieve the high simulation of simulation scalp skin and skin. And the effect of removing non -deformation.
It achieves a high degree of simulation of the simulated scalp and face, can truly simulate the cyanosis effect under different physiological and pathological conditions, and has good resilience and anti-aging properties. It supports multiple disassembly and reuse, saving teaching costs.
Smart Images
Figure CN119348048A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of medical teaching, and in particular relates to a method for making a simulated scalp and face skin and a training model thereof. Background Art
[0002] At present, cyanosis simulation is mostly achieved by LED lights or light-emitting diodes that can make simulated skin appear purple. However, in medical teaching models, in order to ensure the strength and simulation of simulated skin, the simulated skin must have a certain thickness and color. When LED lights or purple light-emitting diodes pass through simulated skin, their light transmittance will be greatly reduced, making the simulated cyanosis effect have certain differences, thus affecting the learning and judgment of the real cyanosis effects caused by different pathologies.
[0003] In actual medical teaching, in order to simulate various injuries, the head skin needs to be replaced. Some of the existing head model skins are not replaceable, and some are replaceable but easy to deform. Therefore, in order to meet the needs of teaching in various modes, it is necessary to develop a simulated scalp and face skin that can be disassembled multiple times without deformation and can simulate cyanosis of the lips more realistically. Summary of the invention
[0004] The invention purpose of this application is to solve the above technical problems and provide a method for making a simulated scalp and face skin and a training model thereof, so as to achieve the technical effect of more realistic simulation of cyanosis and no deformation after multiple disassembly and replacement.
[0005] This application is implemented through the following technical solutions: A method for making a simulated scalp and face skin comprises the following steps: S1. The liquid silica gel R6010B, the phosphor and the titanium dioxide are fully mixed to obtain a mixed liquid silica gel I, the liquid silica gel I is mixed with the liquid silica gel R6010A to obtain a mixed liquid silica gel II, and a vacuum degassing treatment is performed; S2. Applying a release agent to the upper and lower molds of the lip mold, injecting the liquid silicone II obtained in step S1 into the lip mold to simulate the production of a color-changing lip inner membrane; S3. The liquid silicone R6010B, titanium dioxide, silicone powder, and pigment are mixed to obtain a mixed liquid silicone III, the liquid silicone III is mixed with the liquid silicone R6010A to obtain a mixed liquid silicone IV, and a vacuum degassing treatment is performed; S4. Apply a release agent to the upper mold, lower mold and core of the simulation scalp face mold, and fix the simulated color-changing lip inner film prepared in step S2 to the corresponding position of the lip on the core; S5. Inject the mixed liquid silicone IV obtained in step S3 into the simulated scalp and face mold to produce the simulated scalp and face.
[0006] Furthermore, the phosphors described in step S1 include rose red phosphors, blue phosphors and orange phosphors.
[0007] Furthermore, in the liquid silicone I, the content of the liquid silicone R6010B is 85% to 90%, the content of the titanium dioxide is 1.0% to 5.0%, the content of the rose red phosphor is 3.3% to 3.5%, the content of the blue phosphor is 5.1% to 5.3%, and the content of the orange phosphor is 1.1% to 1.2%. The above raw materials are added to the reactor in sequence according to the proportion and mixed. The mixing operation temperature is set to 25°C to 30°C, the mixing stirring rate is 100 to 200 r / min, the mixing stirring time is 15 to 60 min, and vacuum degassing treatment is performed to obtain a uniformly mixed liquid silicone I.
[0008] Furthermore, in the liquid silica gel II described in step S1, the content of the liquid silica gel I is 50% to 55%, and the content of the liquid silica gel R6010A is 45% to 50%. The mixing is performed, the temperature of the mixing operation is set to 20° C. to 25° C., the stirring rate is 60 to 150 r / min, the mixing time is 15 to 30 min, and a vacuum degassing treatment is performed to obtain a mixed liquid silica gel II.
[0009] Furthermore, a release agent is applied to the upper and lower molds of the lip mold, and the liquid silicone II mixed in step S1 is injected into the lip mold to produce a simulated color-changing lip inner membrane. The curing temperature is set to 150°C to 180°C, and the curing time is 60 to 180 min. After molding, it is taken out from the lip mold to obtain a molded simulated color-changing lip inner membrane with a thickness of 4 mm.
[0010] Furthermore, in step S3, the pigments include red, yellow and black liquid pigments.
[0011] Furthermore, in the liquid silicone III in step S3, the content of liquid silicone R6010B is 95% to 97%, the content of titanium dioxide is 1.5% to 3%, the content of silicone powder is 1% to 2%, the content of red pigment is 0.03% to 0.04%, the content of yellow pigment is 0.1% to 0.15%, and the content of black pigment is 0.006% to 0.008%. Various raw materials are sequentially put into a reaction kettle for mixing. The operating temperature during mixing is 25° C. to 35° C., the mixing stirring rate is 150 to 200 r / min, and the mixing stirring time is 15 to 60 min to obtain a mixed liquid silicone III, which is then subjected to vacuum degassing treatment.
[0012] Furthermore, in order to improve the resilience of the simulated scalp and face, silicone powder with a siloxane content of 38% is selected.
[0013] Furthermore, the content of the liquid silica gel III described in step S3 is 49% to 51%, and the content of the liquid silica gel R6010A is 51% to 49%. The two raw materials are put into the reaction kettle in turn and mixed. The mixing temperature is 25° C. to 35° C., the mixing stirring rate is 150 to 200 r / min, the mixing stirring time is 15 to 40 min, and vacuum degassing treatment is performed to obtain mixed liquid silica gel IV.
[0014] Further, a release agent is applied to the simulated scalp and face mold, and the liquid silicone IV is injected into the simulated scalp and face mold. The curing temperature is 150° C. to 200° C., and the curing time is 120 to 180 minutes. After molding, the simulated scalp and face are taken out to obtain the simulated scalp and face.
[0015] A training model comprises a simulated scalp and face skin made by the above method, a skull model and an oral sealing strip, wherein the simulated scalp and face skin is detachably fixed to the skull model in a sleeve-type manner, and the oral sealing strip is fixedly arranged between the lips of the skull model and the lips of the simulated scalp and face skin to ensure the airtightness of the oral area.
[0016] Furthermore, the skull model includes the human facial features of lips, eyes, ears and nose, teeth are arranged in the lips, and a row of LED light strips are respectively embedded in the upper and lower gum positions of the teeth.
[0017] Furthermore, a main control unit is also provided in the skull model, and the main control unit is connected to the LED light strip by wire to control the switching of the LED light strip and the adjustment of the light intensity of the LED light strip.
[0018] Furthermore, it also includes a user terminal which is wirelessly connected to the main control unit.
[0019] The beneficial effects of the present invention are: In this technical solution, by adjusting the raw material ratios of R6010B, R6010A, three colors of fluorescent powder, three liquid pigments, titanium dioxide, and silicone powder, and the design of key control points during the operation, the simulated scalp and face effect is highly realistic and can simulate cyanosis under different physiological and / or pathological conditions, helping students to better understand and master this clinical phenomenon.
[0020] The simulated scalp and face in the technical solution are made by an integrated molding process, and the simulated scalp and face fit more closely with the skull model. The sealing strip is arranged between the mouth of the skull model and the mouth of the simulated scalp and face, ensuring the airtightness of the oral area.
[0021] Through the manufacturing process design of the simulated scalp and face skin in the technical solution, the prepared simulated scalp and face skin has good resilience, tear resistance, and anti-aging performance, and can be conveniently mounted and / or removed from the skull model. When the simulated scalp and face skin is damaged by external force, only the simulated scalp and face skin need to be replaced, and the entire head model does not need to be replaced, thereby saving the model use cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 Create a flow chart for simulating scalp and face; Figure 2 It is a schematic diagram of the structure of the upper mold part of the lip mold; Figure 3 It is a schematic diagram of the structure of the lower mold part of the lip mold; Figure 4 This is a schematic diagram of the upper mold structure of the simulated scalp and face mold; Figure 5 This is a schematic diagram of the lower mold structure of the simulated scalp and face mold; Figure 6 Schematic diagram of the cross-section structure of the training model. DETAILED DESCRIPTION
[0023] In order to more clearly illustrate the technical problems, technical solutions and beneficial effects achieved in this application, a detailed description is given below in conjunction with specific embodiments. Example 1
[0024] In conjunction with the instruction manual Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown: In this embodiment, the raw material ratio for making the simulated color-changing lip inner film is as follows: The following data are in mass units of g, R6010B 88.5 Rose red phosphor 3.3 Blue phosphor 5.1 Orange phosphor 1.1 Titanium dioxide 1.0 R6010A 100 The steps for making simulated color-changing lip inner film are: a. In the reactor, liquid silica gel R6010B, titanium dioxide, rose red phosphor, blue phosphor and orange phosphor are added in the above mass ratio in sequence and mixed. The mixing operation temperature is set to 25°C, the stirring rate is set to 100r / min, and the mixing time is set to 60min. After the mixing is completed, it is subjected to vacuum degassing treatment to obtain liquid silica gel I with phosphor.
[0025] b. Mix the liquid silicone I with fluorescent powder obtained in step a with the liquid silicone R6010A of the above mass ratio, set the mixing operation temperature to 20°C, the mixing stirring rate to 100r / min, and the mixing time to 30min. After the mixing is completed, perform vacuum degassing treatment to obtain mixed liquid silicone II.
[0026] c. A convex groove 41 is provided on the upper mold 4 of the lip mold, and a concave groove 51 is provided on the lower mold 5. After applying a release agent in the convex groove 41 and the concave groove 51, the mixed liquid silicone II prepared in step b is injected into the concave groove 51 in the lower mold of the lip mold from the injection port 52, and the injection amount is 25g. Then, the upper mold 4 and the lower mold 5 are tightened and fixed by screws, and cured at 150°C for 100 minutes, thereby obtaining a simulated color-changing lip inner membrane with a thickness of 4mm. Example 2
[0027] In conjunction with the instruction manual Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown: In this embodiment, the raw material ratio for making the simulated color-changing lip inner film is as follows: The following data units are mass g, R6010B 88 Rose red fluorescent powder 3.5 Blue phosphor 5.3 Orange phosphor 1.11 Titanium dioxide 2 R6010A 90 The steps for making simulated color-changing lip inner film are: a. In the reactor, liquid silica gel R6010B, titanium dioxide, rose red phosphor, blue phosphor and orange phosphor were added in the above mass ratio and mixed. The mixing and stirring operation temperature was set to 25°C, the stirring rate was set to 100r / min, and the mixing and stirring time was set to 60min. After the mixing was completed, it was subjected to vacuum degassing treatment to obtain liquid silica gel I with phosphor.
[0028] b. Mix the liquid silicone I with fluorescent powder obtained in step a with the liquid silicone R6010A of the above mass ratio, set the mixing operation temperature to 20°C, the mixing stirring rate to 100r / min, and the mixing time to 30min. After the mixing is completed, perform vacuum degassing treatment to obtain mixed liquid silicone II.
[0029] c. A convex groove 41 is provided on the upper mold 4 of the lip mold, and a concave groove 51 is provided on the lower mold 5. After applying a release agent in the convex groove 41 and the concave groove 51, the mixed liquid silicone II prepared in step b is injected into the concave groove 52 in the lower mold of the lip mold through the injection port 52, and the injection amount is 25g. Then, the upper mold 4 and the lower mold 5 are tightened and fixed by screws, and cured at 170°C for 100 minutes, thereby obtaining a simulated color-changing lip inner membrane with a thickness of 4mm. Example 3
[0030] In conjunction with the instruction manual Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown: In this embodiment, the raw material ratio for making the simulated color-changing lip inner film is as follows: The following data units are mass g, R6010B 85 Rose red fluorescent powder 3.5 Blue phosphor 5.3 Orange phosphor 1.2 Titanium dioxide 5 R6010A 90 The steps for making simulated color-changing lip inner film are: a. In the reactor, liquid silica gel R6010B, titanium dioxide, rose red phosphor, blue phosphor and orange phosphor were added in the above mass ratio and mixed. The mixing operation temperature was set to 30°C, the stirring rate was set to 150r / min, and the mixing time was set to 40min. After the mixing was completed, it was subjected to vacuum degassing treatment to obtain liquid silica gel I with phosphor.
[0031] b. Mix the liquid silicone I with fluorescent powder obtained in step a with the liquid silicone R6010A of the above mass ratio, set the mixing operation temperature to 20°C, the mixing stirring rate to 150r / min, and the mixing time to 20min. After the mixing is completed, perform vacuum degassing treatment to obtain mixed liquid silicone II.
[0032] c. A convex groove 41 is provided on the upper mold 4 of the lip mold, and a concave groove 51 is provided on the lower mold 5. After applying a release agent in the convex groove 41 and the concave groove 51, the mixed liquid silicone II prepared in step b is injected into the concave groove 51 in the lower mold of the lip mold through the injection port 52, and the injection amount is 25g. Then, the upper mold 4 and the lower mold 5 are tightened and fixed by screws, and cured at 180°C for 80 minutes, thereby obtaining a simulated color-changing lip inner membrane with a thickness of 4mm. Example 4
[0033] In conjunction with the instruction manual Figure 1 , Attachment Figure 4 and attached Figure 5 As shown: In this embodiment, the ratio of the simulated scalp and face material is as follows, and the following data is in mass g.
[0034] R6010B 96 Titanium dioxide 2.5 Red pigment 0.04 Yellow pigment 0.1 Black pigment 0.006 Silicone powder 1.3 R6010A 113 The specific steps for making a simulated scalp and face are as follows: a. Put the liquid silica gel R6010B, titanium dioxide and silicone powder in the above mass ratio into a reaction kettle, stir and mix, add red, yellow and black liquid pigments after mixing evenly, continue to stir and mix, the mixing operation temperature is 25℃, the stirring rate is 150r / min, the stirring time is 50min, and vacuum degassing treatment is carried out to obtain colored mixed liquid silica gel III.
[0035] b. Mix the mixed liquid silica gel III obtained in step a with liquid silica gel R6010A according to the above mass ratio, set the mixing operation temperature to 25°C, the stirring rate to 180r / min, and the mixing time to 30min. After the mixing is completed, let it stand for vacuum degassing to obtain mixed liquid silica gel IV.
[0036] c. Apply a release agent on the upper mold 7, the lower mold 8 and the core (not shown in the figure) of the simulated scalp and face mold, place the simulated color-changing lip inner membrane prepared in any one of Examples 1 to 3 on the lip part on the core of the simulated scalp and face mold, inject the mixed liquid silicone IV obtained in step b. In this embodiment, the injection amount is set to 1800g, and perform curing molding. The curing temperature is set to 150°C and the curing time is set to 150min, and then a simulated scalp and face is obtained. Example 5
[0037] In conjunction with the instruction manual Figure 1 , Attachment Figure 4 and attached Figure 5 As shown: In this embodiment, the ratio of the simulated scalp and face material is as follows, and the following data is in mass g.
[0038] R6010B 96.7 Titanium dioxide 1.65 Red pigment 0.03 Yellow pigment 0.1 Black pigment 0.006 Silicone powder 1.5 R6010A 100 The specific steps for making a simulated scalp and face are as follows: a. Put the liquid silica gel R6010B, titanium dioxide and silicone powder in the above mass ratio into a reaction kettle, stir and mix, add red, yellow and black liquid pigments after mixing evenly, continue to stir and mix, the mixing operation temperature is 25℃, the stirring rate is 150r / min, the stirring time is 50min, and vacuum degassing treatment is carried out to obtain colored mixed liquid silica gel III.
[0039] b. Mix the mixed liquid silica gel III obtained in step a with liquid silica gel R6010A according to the above mass ratio, set the mixing operation temperature to 25°C, the stirring rate to 180r / min, and the mixing time to 30min. After the mixing is completed, let it stand for vacuum degassing to obtain mixed liquid silica gel IV.
[0040] c. Apply a release agent on the upper mold 7, the lower mold 8 and the core (not shown in the figure) of the simulated scalp and face mold, place the simulated color-changing lip inner membrane prepared in any one of Examples 1 to 3 on the lip part on the core of the simulated scalp and face mold, inject the mixed liquid silicone IV obtained in step b. In this embodiment, the injection amount is set to 1800g, and perform curing molding. The curing temperature is set to 180°C and the curing time is set to 150min, and then a simulated scalp and face is obtained. Example 6
[0041] In conjunction with the instruction manual Figure 1 , Attachment Figure 4 and attached Figure 5 As shown: In this embodiment, the ratio of the simulated scalp and face material is as follows, and the following data is in mass g.
[0042] R6010B 95.3 Titanium dioxide 2.5 Red pigment 0.03 Yellow pigment 0.1 Black pigment 0.006 Silicone powder 2 R6010A 96 The specific steps for making a simulated scalp and face are as follows: a. Put the liquid silica gel R6010B, titanium dioxide and silicone powder in the above mass ratio into a reaction kettle, stir and mix, add red, yellow and black liquid pigments after mixing evenly, continue to stir and mix, the mixing operation temperature is 25℃, the stirring rate is 150r / min, the stirring time is 50min, and vacuum degassing treatment is carried out to obtain colored mixed liquid silica gel III.
[0043] b. Mix the mixed liquid silica gel III obtained in step a with liquid silica gel R6010A according to the above mass ratio, set the mixing operation temperature to 25°C, the stirring rate to 180r / min, and the mixing time to 30min. After the mixing is completed, let it stand for vacuum degassing to obtain mixed liquid silica gel IV.
[0044] c. Apply a release agent on the upper mold 7, the lower mold 8 and the core (not shown in the figure) of the simulated scalp and face mold, place the simulated lips prepared in Example 1 on the lip part of the core of the simulated scalp and face mold, inject the mixed liquid silicone IV obtained in step b. In this embodiment, the injection amount is set to 1800g, perform curing molding, set the curing temperature to 200°C, and set the curing time to 120min. Take out from the mold to obtain the simulated scalp and face. Example 7
[0045] In this embodiment, combined with the attached Figure 4 and attached Figure 5 As shown, the simulated scalp and face mold includes an upper mold 7, a lower mold 8, and a core (not shown in the figure). The core is 3D printed (a model with conventional human facial features). The upper mold 7 has an inner cavity 72, the lower mold 8 has an inner cavity 82, the upper mold 7 has a fixing hole 71, and the lower mold 8 has a fixing hole 81. The upper mold 7 and the lower mold 8 are fixed to the fixing holes by screws, and the core is set in the cavity formed after the upper mold 7 and the lower mold 8 are fixed. The cavity of the upper mold 7 is provided with an injection port 73, which corresponds to the hole 83 provided on the lower mold 8, and is used for the injection of silicone rubber raw materials.
[0046] The simulated scalp and face skin made by the above method can simulate the cyanosis of lips more realistically, with realistic effect, and has good tear resistance, high resilience and anti-aging performance. It can be replaced many times without deformation and can be reused, saving the use cost. Example 8
[0047] In this embodiment, combined with the attached Figure 6As shown, a training model includes a simulated scalp and face skin 3 made by any method of Examples 1 to 7, a skull model 1, an oral sealing strip 11 and a user terminal. The skull model includes a human facial structure of lips, eyes, ears and nose, and teeth are arranged in the lips 31, and a row of LED light strips (not shown in the figure) are respectively embedded at the upper and lower gums 2 of the teeth. In this embodiment, the simulated scalp and face skin 3 is detachably mounted on the skull model 1, and the oral sealing strip 11 is arranged between the oral cavity of the skull model and the upper oral cavity of the simulated scalp and face skin to ensure the airtightness of the oral cavity. The oral sealing strip is made of liquid silicone rubber R6016A and R6016B, and the oral sealing strip made of the above liquid silicone rubber is elastic and has good sealing performance.
[0048] In this embodiment, a main control unit (not shown in the figure) is also provided, which is wired to the LED light strip and is used to control the on and off of the LED light strip and to adjust the light intensity of the LED light strip.
[0049] In some embodiments, a user terminal is also provided, which is wirelessly connected to the main control unit, and sends the case to the main control unit. The main control unit controls the LED to emit light of corresponding wavelength and intensity to the lips, so as to present a cyanotic effect suitable for the case. In this embodiment, the wavelength of the light emitted by the LED light strip is set to be within the range of 400-435nm.
[0050] The raw materials used in this application are all commercially available raw materials.
Claims
1. A method for making a simulated scalp and face skin, characterized in that: The following steps are involved: S1. The liquid silica gel R6010B, the phosphor and the titanium dioxide are fully mixed to obtain a mixed liquid silica gel I, the liquid silica gel I is mixed with the liquid silica gel R6010A to obtain a mixed liquid silica gel II, and a vacuum degassing treatment is performed; S2. Applying a release agent to the upper and lower molds of the lip mold, injecting the liquid silicone II obtained in step S1 into the lip mold to simulate the production of a color-changing lip inner membrane; S3. The liquid silicone R6010B, titanium dioxide, silicone powder, and pigment are mixed to obtain a mixed liquid silicone III, the liquid silicone III is mixed with the liquid silicone R6010A to obtain a mixed liquid silicone IV, and a vacuum degassing treatment is performed; S4. Apply a release agent to the upper mold, lower mold and core of the simulated scalp face mold, and fix the simulated color-changing lip inner membrane prepared in step S2 to the corresponding position of the lip on the core; S5. Inject the mixed liquid silicone IV obtained in step S3 into the simulated scalp and face mold to produce the simulated scalp and face.
2. The method for making a simulated scalp and face skin according to claim 1, characterized in that: The phosphors described in step S1 include rose red phosphors, blue phosphors and orange phosphors.
3. The method for making a simulated scalp and face skin according to claim 2, characterized in that: In the liquid silica gel I described in step S1, the content of the liquid silica gel R6010B is 85% to 90%, the content of the titanium dioxide is 1.0% to 5.0%, the content of the rose red phosphor is 3.3% to 3.5%, the content of the blue phosphor is 5.1% to 5.3%, and the content of the orange phosphor is 1.1% to 1.2%. The above raw materials are added to the reaction kettle in sequence according to the proportion for mixing. The mixing operation temperature is set to 25°C to 30°C, the mixing stirring rate is 100 to 200 r / min, the mixing stirring time is 15 to 60 min, and vacuum degassing treatment is performed to obtain a uniformly mixed liquid silica gel I.
4. The method for making a simulated scalp and face skin according to claim 1, characterized in that: In the liquid silica gel II described in step S1, the content of the liquid silica gel I is 50% to 55%, and the content of the liquid silica gel R6010A is 45% to 50%. The mixing is performed, the temperature of the mixing operation is set to 20°C to 25°C, the stirring rate is 60 to 150 r / min, the mixing time is 15 to 30 min, and a vacuum degassing treatment is performed to obtain a mixed liquid silica gel II.
5. The method for making a simulated scalp and face skin according to claim 1, characterized in that: The step S2 simulates the production of a color-changing lip inner membrane. A release agent is applied to the upper and lower molds of the lip mold, and the liquid silicone II obtained in step S1 is injected into the lip mold. The curing temperature is set to 150°C to 180°C, and the curing time is 60 to 180 min. After molding, it is taken out from the lip mold to obtain a simulated color-changing lip inner membrane.
6. The method for making a simulated scalp and face skin according to claim 1, characterized in that: The pigments in step S3 include red, yellow and black liquid pigments.
7. The method for making a simulated scalp and face skin according to claim 6, characterized in that: In the liquid silica gel III in step S3, the content of liquid silica gel R6010B is 95% to 97%, the content of titanium dioxide is 1.5% to 3%, the content of red pigment is 0.03% to 0.04%, the content of yellow pigment is 0.1% to 0.15%, and the content of black pigment is 0.006% to 0.008%. Various raw materials are sequentially put into a reaction kettle for mixing. The operating temperature during mixing is 25° C. to 35° C., the mixing stirring rate is 150 to 200 r / min, and the mixing stirring time is 15 to 60 min to obtain a mixed liquid silica gel III, which is subjected to vacuum degassing treatment.
8. The method for making a simulated scalp and face skin according to claim 1, characterized in that: The content of the liquid silica gel III described in step S3 is 49% to 51%, and the content of the liquid silica gel R6010A is 51% to 49%. The two raw materials are sequentially put into a reaction kettle and mixed. The mixing temperature is 25°C to 35°C, the mixing stirring rate is 150 to 200 r / min, the mixing stirring time is 15 to 40 min, and vacuum degassing treatment is performed to obtain a mixed liquid silica gel IV.
9. The method for making a simulated scalp and face skin according to claim 1, characterized in that: In the step S5, the curing temperature during the production of the simulated scalp and face skin is set to 150° C. to 200° C., and the curing time is 120 to 180 minutes. After the molding, the simulated scalp and face skin is taken out to obtain the simulated scalp and face skin.
10. A training model, characterized in that: It comprises a simulated scalp and face skin, a skull model and an oral sealing strip made by the method described in any one of claims 1 to 9, wherein the simulated scalp and face skin is detachably fixed to the skull model in a sleeve-type manner, and the oral sealing strip is fixedly arranged between the lips of the skull model and the lips of the simulated scalp and face skin.
11. A training model according to claim 10, characterized in that: The skull model comprises the human body's five sense organs, namely lips, eyes, ears and nose. Teeth are arranged in the lips, and a row of LED light strips are respectively embedded in the upper and lower gum positions of the teeth.
12. A training model according to claim 11, characterized in that: A main control unit is also provided in the skull model, and the main control unit is wiredly connected to the LED light strip to control the switching of the LED and the adjustment of the LED light intensity.
13. A training model according to claim 12, characterized in that: It also includes a user terminal which is wirelessly connected to the main control unit.