Molding device of oral cavity restoration film, oral cavity restoration film and film manufacturing method

Abstract

The invention relates to the technical field of medical instruments, and discloses an oral cavity repair film forming device which comprises a base and an upper pressing seat, a pressing cutting edge is arranged on a pressing cutting plane at the top of the base, and the cutting edge forms a spider-shaped structure; the film base material is clamped between the pressing groove and the pressing and cutting plane of the upper pressing seat, the cutting edge presses and cuts the film base material, meanwhile, the groove wall of the pressing groove extrudes the edge of the film base material to be bent, a hollowed-out film with the edge to be pressed is formed, the hollowed-out part maintains blood supply, and supply of cell growth factors is guaranteed; an edge pressing groove is concavely formed in an edge pressing plane at the bottom of a base, a bent edge of a to-be-edge-pressed film is in butt joint with the edge pressing groove, the to-be-edge-pressed film is clamped between the edge pressing plane of the base and any horizontal plane, the base is pressed towards the horizontal plane, the bent edge of the to-be-edge-pressed film is bent and folded inwards along the edge pressing groove, the oral cavity repairing film is formed, and the middle of the oral cavity repairing film is of a spider net structure. High supporting force and high stability are achieved; and the cut sharp edge is bent inwards to be hidden, so that the risk of being scratched is avoided, and the use safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a forming device for an oral repair membrane, an oral repair membrane and a membrane making method. Background Art

[0002] Clinically, alveolar bone defects are often caused by various reasons such as periodontal disease, dental trauma, tumors, etc. Since alveolar bone grows relatively slowly, while fibroblasts and epithelial cells proliferate rapidly, after a bone defect occurs, fibroblasts and epithelial cells will occupy the defect space in advance to form soft tissue, affecting bone reconstruction.

[0003] The existing guided bone regeneration technology (GBR) uses the barrier membrane properties to block fibroblasts from the surrounding soft tissues, allowing osteoblasts on the bone surface enough time to proliferate, ultimately achieving the purpose of tissue regeneration and directional repair. In addition to the shielding effect, guided bone regeneration technology also needs to meet blood supply and ensure the supply of cell growth factors.

[0004] The barrier membrane in the prior art can be made of collagen, which is compatible with the human body, but will collapse in a wet environment and is difficult to have spatial support. Some barrier membranes are made of titanium mesh, but using titanium mesh to make barrier membranes will produce sharp edges after cutting the titanium mesh, which can easily injure the periosteum and soft tissue, affecting the treatment effect. Summary of the invention

[0005] The purpose of the present invention is to provide a forming device for an oral repair membrane, an oral repair membrane and a membrane making method, which can maintain blood supply, ensure the supply of cell growth factors, have high supporting force and high stability, and are safer to use.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A forming device for an oral repair membrane, comprising:

[0008] A base, wherein a cutting plane is arranged on the top of the base, a cutting blade is vertically convexly arranged on the cutting plane, and the cutting edge of the cutting blade forms a spider web structure; a pressing edge plane is arranged on the bottom of the base, a pressing edge groove is concavely arranged on the pressing edge plane, and the pressing edge groove is arranged in a rectangular frame shape;

[0009] The upper press seat is provided with a pressing groove, the bottom of the pressing groove is larger than the pressing and cutting plane, and the bottom of the pressing groove is smaller than the film substrate. The upper press seat can be movably sleeved on the pressing and cutting plane through the pressing groove so that the bottom of the pressing groove is connected with the cutting edge of the pressing and cutting blade.

[0010] As an optional technical solution for the forming device of the oral repair membrane, the height of the cutting blade is greater than the thickness of the membrane substrate.

[0011] As an optional technical solution for the molding device of the oral repair membrane, a material collection cavity is provided inside the base, and a material cutting hollow is provided on the inner periphery of the cutting edge of the cutting plane, and the material cutting hollow is directly connected to the material collection cavity.

[0012] As an optional technical solution for the molding device of the oral repair membrane, the base includes a pressing and cutting portion and a pressing edge portion connected in the vertical direction, the pressing and cutting portion is provided with a pressing and cutting step, the pressing and cutting step includes a first folding surface, a second folding surface and a third folding surface connected in sequence, the first folding surface is the pressing and cutting plane, the angle between the first folding surface and the pressing and cutting plane is greater than or equal to 90°, the third folding surface is parallel to the pressing and cutting plane and the distance is greater than the groove depth of the pressing groove; the bottom surface of the pressing edge portion is set as the pressing edge plane.

[0013] As an optional technical solution of the forming device of the oral repair membrane, the cutting part and the edge pressing part are detachably connected.

[0014] As an optional technical solution for the forming device of the oral repair membrane, the upper press seat is provided with a limiting groove, the pressing groove is opened at the groove bottom of the limiting groove, and the limiting groove is used to place the membrane substrate.

[0015] As an optional technical solution for the molding device of the oral repair membrane, a supporting plane is provided on the side of the upper pressing seat away from the pressing groove, and the supporting plane is used to place the membrane to be pressed. The supporting plane and the pressing plane can jointly press the membrane to be pressed so that the edge of the membrane to be pressed bends inward along the pressing groove.

[0016] The oral repair membrane is made using the molding device for the oral repair membrane as described in any one of the above items.

[0017] A film making method for preparing the above-mentioned oral repair film, the film making method comprising:

[0018] Step 1: Cut the film sheet into a rectangle of a preset size and cut off the four corners to form a film substrate;

[0019] Step 2: clamp the film substrate between the pressing groove of the upper pressing seat and the pressing plane of the base, and press the upper pressing seat downward, the cutting edge of the pressing blade presses the film substrate until the cutting edge of the pressing blade contacts the bottom of the pressing groove, and at the same time, the groove wall of the pressing groove squeezes the edge of the film substrate to be bent to form a film to be pressed;

[0020] Step three, connect the bent edge of the film to be pressed with the pressing groove, the film to be pressed is clamped between the pressing plane of the base and any horizontal plane, and the base is pressed toward the horizontal plane, the bent edge of the film to be pressed is bent and folded inward along the pressing groove to form an oral repair membrane.

[0021] As an optional technical solution of the film making method, in step three, the arbitrary horizontal plane can be a side plane of the upper pressing seat away from the pressing groove.

[0022] Beneficial effects of the present invention:

[0023] The forming device of the oral repair membrane provided by the present invention comprises a base and an upper pressing seat, a pressing and cutting plane is arranged on the top of the base, a pressing and cutting blade is vertically protruded on the pressing and cutting plane, and the cutting edge of the pressing and cutting blade forms a spider web structure; the corresponding upper pressing seat is provided with a pressing groove, the bottom of the pressing groove is larger than the pressing and cutting plane, and the bottom of the pressing groove is smaller than the membrane substrate, the upper pressing seat can be movably sleeved on the pressing and cutting plane through the pressing groove, the membrane substrate with the four corners cut off is clamped between the pressing groove of the upper pressing seat and the pressing and cutting plane of the base, and the upper pressing seat is pressed downward, the cutting edge of the pressing and cutting blade presses the membrane substrate until the cutting edge of the pressing and cutting blade is connected to the bottom of the pressing groove, and at the same time, the groove wall of the pressing groove squeezes the edge of the membrane substrate to be bent to form a hollow membrane to be pressed, and the hollow part can maintain blood supply and ensure the supply of cell growth factors. The bottom of the base is provided with a pressing plane, and a pressing groove is concavely provided on the pressing plane. The pressing groove is set in a rectangular frame shape. The bent edge of the film to be pressed is connected with the pressing groove. The film to be pressed is clamped between the pressing plane of the base and any horizontal plane, and the base is pressed to the horizontal plane. The bent edge of the film to be pressed is bent and folded inward along the pressing groove to form an oral repair membrane. The oral repair membrane adopts a spider web structure in the middle, which can withstand a large tensile force and support force, and has high stability; and the sharp edges after cutting are bent inward and hidden to avoid the risk of scratches, thereby improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a front view of a membrane sheet in a membrane making method provided in a specific embodiment of the present invention;

[0025] Figure 2 is a front view of a film substrate in a film-making method provided in a specific embodiment of the present invention;

[0026] Figure 3 is an axonometric view of a film substrate in a film-making method provided in a specific embodiment of the present invention;

[0027] Figure 4 It is a structural schematic diagram of an upper pressing seat of a forming device for an oral repair membrane provided in a specific embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of assembling an upper pressing seat and a film substrate of a forming device for an oral repair film provided in a specific embodiment of the present invention;

[0029] Figure 6It is a top view of the base of the molding device of the oral repair membrane provided by the specific embodiment of the present invention;

[0030] Figure 7 It is a side view of the base of the molding device of the oral repair membrane provided by the specific embodiment of the present invention;

[0031] Figure 8 It is a bottom view of the base of the molding device of the oral repair membrane provided by the specific embodiment of the present invention;

[0032] Fig. 9 It is an axonometric view of the base of the molding device of the oral repair membrane provided by the specific embodiment of the present invention;

[0033] Fig.10 It is a cross-sectional view of the base of the molding device of the oral repair membrane provided by the specific embodiment of the present invention;

[0034] Fig.11 It is a cross-sectional view of a base of a molding device for an oral repair membrane in another embodiment provided in a specific embodiment of the present invention;

[0035] Fig.12 It is a working schematic diagram of a forming device for an oral repair membrane in step 2 of a membrane-making method provided in a specific embodiment of the present invention;

[0036] Fig.13 yes Fig.12 A cross-sectional view of

[0037] Fig.14 yes Fig.12 Exploded diagram of

[0038] Fig.15 It is a front view of a film to be folded in a film making method provided in a specific embodiment of the present invention;

[0039] Fig.16 It is a side view of a film to be folded in a film making method provided in a specific embodiment of the present invention;

[0040] Fig.17 It is an axonometric diagram of a film to be folded in a film making method provided in a specific embodiment of the present invention;

[0041] Fig.18 It is a working schematic diagram of a forming device for an oral repair membrane in step three of the membrane making method provided in a specific embodiment of the present invention;

[0042] Fig.19 It is an axonometric view of the oral repair membrane provided by a specific embodiment of the present invention.

[0043] In the figure:

[0044] 100, base; 101, cutting plane; 1011, blanking hollow; 102, second folding surface; 103, third folding surface; 104, blanking collection cavity; 105, edge pressing plane; 1051, edge pressing groove; 110, cutting blade;

[0045] 200, upper pressing seat; 201, supporting plane; 210, pressing groove; 220, limiting groove;

[0046] 300, membrane sheet; 400, membrane substrate; 500, membrane to be pressed; 600, oral repair membrane. DETAILED DESCRIPTION

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0050] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0051] like Figures 1 to 19 As shown in the figure, the present invention discloses a forming device of an oral repair membrane and an oral repair membrane 600. The forming device of the oral repair membrane comprises a base 100 and an upper pressing seat 200. A pressing plane 101 is arranged on the top of the base 100. A pressing blade 110 is vertically protruded on the pressing plane 101. The edge of the pressing blade 110 forms a spider web structure. The upper pressing seat 200 is provided with a pressing groove 210. The bottom of the pressing groove 210 is larger than the pressing plane 101. The bottom of the pressing groove 210 is smaller than the membrane substrate 400. The upper pressing seat 200 can be movably sleeved on the pressing plane 101 through the pressing groove 210. 01, the membrane substrate 400 with the four corners cut off is clamped between the pressing groove 210 of the upper pressing seat 200 and the pressing plane 101 of the base 100, and the upper pressing seat 200 is pressed downward, and the cutting edge of the pressing blade 110 presses the membrane substrate 400 until the cutting edge of the pressing blade 110 is in contact with the bottom of the pressing groove 210. At the same time, the groove wall of the pressing groove 210 squeezes the edge of the membrane substrate 400 to bend, forming a hollow membrane 500 to be pressed. The hollow part can maintain blood supply and ensure the supply of cell growth factors. A pressing plane 105 is provided at the bottom of the base 100, and a pressing groove 1051 is recessed on the pressing plane 105. The pressing groove 1051 is set in a rectangular frame shape. The bent edge of the film 500 to be pressed is connected with the pressing groove 1051. The film 500 to be pressed is clamped between the pressing plane 105 of the base 100 and any horizontal plane, and the base 100 is pressed toward the horizontal plane. The bent edge of the film 500 to be pressed is bent and folded inward along the pressing groove 1051 to form an oral repair membrane 600.

[0052] like Fig.19 As shown, the oral repair membrane 600 prepared using the oral repair membrane molding device has a spider web structure in the middle, which can withstand a large tensile force and supporting force and has high stability; at the same time, it can maintain blood supply and ensure the supply of cell growth factors; and the sharp edges after cutting are bent inward and hidden to avoid the risk of scratches, thereby improving safety of use.

[0053] Specifically, the oral repair membrane 600 is made of a biodegradable magnesium alloy, which can be safely degraded in the human body, avoiding secondary surgery for removal and reducing damage to the patient.

[0054] In order to better press-cut the film substrate 400 , the height of the press-cutting blade 110 is set to be greater than the thickness of the film substrate 400 , so as to ensure that a spider web-like structure is formed on the film substrate 400 by cutting through.

[0055] In this embodiment, the interior of the base 100 is provided with a material collection chamber 104 in a hollow structure, see Fig.10The cutting plane 101 is provided with a material cutting hollow 1011 on the inner periphery of the cutting edge of the cutting blade 110, and the material cutting hollow 1011 is directly connected to the material cutting collection chamber 104. During the cutting and forming process of the oral repair membrane forming device, the waste material after cutting the film substrate 400 falls into the material cutting collection chamber 104 inside the base 100 through the material cutting hollow 1011 under gravity for collection, thereby avoiding the waste material from accumulating and splashing in the cutting plane 101, affecting the continuity of the cutting, and improving the working efficiency of the oral repair membrane forming device.

[0056] Exemplarily, the base 100 includes a pressing and cutting portion and a pressing edge portion connected in the vertical direction, the pressing and cutting portion is provided with a pressing and cutting step, and the pressing and cutting step includes a first folding surface, a second folding surface 102 and a third folding surface 103 connected in sequence, the first folding surface is a pressing and cutting plane 101, and the angle between the first folding surface and the pressing and cutting plane 101 is greater than or equal to 90°, and the bending angles of the edges around the film substrate 400 are also correspondingly greater than or equal to 90°, so as to avoid being stuck with the pressing and cutting portion of the base 100 and being difficult to remove. Among them, the third folding surface 103 is parallel to the pressing and cutting plane 101 and the distance is greater than the groove depth of the pressing groove 210, so that the groove top of the pressing groove 210 cannot abut and interfere with the third folding surface 103, which can ensure that the base 100 and the upper press seat 200 are pressed and cut in place.

[0057] Optionally, the bottom surface of the edge pressing portion is set as an edge pressing plane 105, and the cutting portion and the edge pressing portion are detachably connected, see Fig.11 , the base 100 having both the pressing and cutting functions and the edge pressing functions can be split into two parts, so that the oral repair membrane 600 can be made more flexibly to further improve the work efficiency. It can be understood that since the base 100 has a cavity structure inside and is provided with a material collection cavity 104, the material collection cavity 104 is separately provided in the pressing and cutting part, and the edge pressing part still has a certain thickness corresponding to the edge pressing plane 105 as a solid structure, the strength of the edge pressing plane 105 and the edge pressing groove 1051 can be improved, and the service life of the molding device of the oral repair membrane can be extended.

[0058] Specific as Figure 4 As shown in the figure, the upper pressing seat 200 is provided with a limiting groove 220, and the pressing groove 210 is opened at the bottom of the limiting groove 220. The inner size of the limiting groove 220 just matches the cut film substrate 400, and is used to place the film substrate 400 to avoid displacement of the film substrate 400 before stable pressing and cutting is completed to cause the pressing and cutting position error, which can improve the working stability of the molding device of the oral repair membrane.

[0059] The present invention also discloses a film making method for preparing an oral repair film 600 using the above-mentioned oral repair film forming device. The film making method comprises:

[0060] Step 1: Cut the film sheet 300 into a rectangle of a preset size and cut off the four corners to form a film substrate 400;

[0061] Step 2: clamp the film substrate 400 between the pressing groove 210 of the upper pressing seat 200 and the pressing plane 101 of the base 100, and press the upper pressing seat 200 downward, and the cutting edge of the pressing blade 110 presses the film substrate 400 until the cutting edge of the pressing blade 110 contacts the bottom of the pressing groove 210, and at the same time, the groove wall of the pressing groove 210 squeezes the edge of the film substrate 400 to bend, so as to form a film 500 to be pressed;

[0062] Step three, align the bent edge of the film to be pressed 500 with the pressing groove 1051, clamp the film to be pressed 500 between the pressing plane 105 of the base 100 and any horizontal plane, and press the base 100 to the horizontal plane, and the bent edge of the film to be pressed 500 is bent and folded inward along the pressing groove 1051 to form an oral repair membrane 600.

[0063] Furthermore, a support plane 201 is provided on one side of the upper pressing seat 200 away from the pressing groove 210, and the support plane 201 is used to place the film to be pressed 500. In step three, any horizontal plane can adopt the support plane 201 of the upper pressing seat 200, and can jointly press the film to be pressed 500 with the pressing plane 105 so that the edge of the film to be pressed 500 bends inward along the pressing groove 1051. The molding device of the oral repair membrane is functionally integrated and has a high degree of integrity, and can independently produce the oral repair membrane 600.

[0064] In this embodiment, first use scissors to Figure 1 The original film sheet 300 with a thickness of 1 mm is cut into a rectangle of a preset size. If a 100 mm×60 mm oral repair film 600 is required, the film sheet 300 is cut into 110 mm×70 mm, that is, 5 mm is reserved on each side, and then the four corners are cut off to form a film substrate 400. The structure of the film substrate 400 is shown in FIG. Figure 2 and Figure 3 Then the cut film substrate 400 is Figure 5 As shown in the figure, it is placed in the limiting groove 220 of the upper pressing plate, and the upper pressing plate and the film substrate 400 are buckled with the base 100, so that the film substrate 400 is clamped between the pressing groove 210 of the upper pressing seat 200 and the pressing plane 101 of the base 100, and the upper pressing seat 200 is pressed downward with force, and the cutting edge of the pressing blade 110 presses the film substrate 400 until the cutting edge of the pressing blade 110 is connected with the groove bottom of the pressing groove 210. The middle part of the film substrate 400 forms a spider web structure under pressure, and the waste after pressing and cutting is collected in the material collection cavity 104. At the same time, the groove wall of the pressing groove 210 squeezes the edge of the film substrate 400 to be bent by about 90 degrees to form a film 500 to be pressed. The structure of the film 500 to be pressed is shown in FIG. Figures 15 to 17; Finally, the bent edge of the film 500 to be pressed is connected with the pressing groove 1051, the film 500 to be pressed is clamped between the pressing plane 105 of the base 100 and the supporting plane 201, and the base 100 is pressed toward the supporting plane 201, and the bent edge of the film 500 to be pressed is bent and folded inward along the pressing groove 1051 to form an oral repair membrane 600.

[0065] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A forming device for oral repair membrane, characterized in that: include: A base (100), wherein a cutting plane (101) is arranged on the top of the base (100), a cutting blade (110) is vertically convexly arranged on the cutting plane (101), and the edge of the cutting blade (110) forms a spider web structure; a pressing plane (105) is arranged on the bottom of the base (100), a pressing groove (1051) is concavely arranged on the pressing plane (105), and the pressing groove (1051) is arranged in a rectangular frame shape; An upper press seat (200) is provided with a pressing groove (210), the bottom of the pressing groove (210) is larger than the pressing and cutting plane (101), and the bottom of the pressing groove (210) is smaller than the film substrate (400), and the upper press seat (200) can be movably sleeved on the pressing and cutting plane (101) through the pressing groove (210) so that the bottom of the pressing groove (210) is in contact with the cutting edge of the pressing and cutting blade (110).

2. The forming device of the oral repair membrane according to claim 1, characterized in that: The height of the pressing and cutting blade (110) is greater than the thickness of the film substrate (400).

3. The forming device of the oral repair membrane according to claim 1, characterized in that: A material collection chamber (104) is provided inside the base (100), and a material cutting hollow (1011) is provided on the inner periphery of the cutting edge of the cutting blade (110) on the cutting plane (101), and the material cutting hollow (1011) is directly connected to the material collection chamber (104).

4. The forming device of the oral repair membrane according to claim 1, characterized in that: The base (100) comprises a pressing and cutting portion and a pressing edge portion connected in a vertical direction, the pressing and cutting portion is provided with a pressing and cutting step, the pressing and cutting step comprises a first folding surface, a second folding surface (102) and a third folding surface (103) connected in sequence, the first folding surface is the pressing and cutting plane (101), the angle between the first folding surface and the pressing and cutting plane (101) is greater than or equal to 90°, the third folding surface (103) is parallel to the pressing and cutting plane (101) and the distance between them is greater than the groove depth of the pressing groove (210); the bottom surface of the pressing edge portion is set as the pressing edge plane (105).

5. The forming device of the oral repair membrane according to claim 4, characterized in that: The cutting portion and the edge pressing portion are detachably connected.

6. The forming device of the oral repair membrane according to claim 1, characterized in that: The upper press seat (200) is provided with a limiting groove (220), the pressing groove (210) is opened at the groove bottom of the limiting groove (220), and the limiting groove (220) is used to place the film substrate (400).

7. The device for forming an oral repair membrane according to claim 1, characterized in that: A support plane (201) is provided on one side of the upper pressing seat (200) away from the pressing groove (210), and the support plane (201) is used to place the film to be pressed (500), and the support plane (201) and the pressing plane (105) can jointly press the film to be pressed (500) so that the edge of the film to be pressed (500) is bent inwardly along the pressing groove (1051).

8. An oral repair membrane, characterized in that: The oral repair membrane is made using the molding device of any one of claims 1 to 7.

9. A film-forming method, characterized in that: For preparing the oral repair membrane according to claim 8, the membrane making method comprises: Step 1: cutting the film sheet (300) into a rectangle of a preset size and cutting off the four corners to form a film substrate (400); Step 2, clamping the film substrate (400) between the pressing groove (210) of the upper pressing seat (200) and the pressing plane (101) of the base (100), and pressing the upper pressing seat (200) downward, the cutting edge of the pressing blade (110) pressing the film substrate (400) until the cutting edge of the pressing blade (110) contacts the bottom of the pressing groove (210), and at the same time, the groove wall of the pressing groove (210) squeezes the edge of the film substrate (400) to bend, so as to form a film to be pressed (500); Step three, dock the bent edge of the film to be pressed (500) with the pressing groove (1051), clamp the film to be pressed (500) between the pressing plane (105) of the base (100) and any horizontal plane, and press the base (100) toward the horizontal plane, and the bent edge of the film to be pressed (500) is bent and folded inward along the pressing groove (1051) to form an oral repair membrane.

10. The film forming method according to claim 9, characterized in that: In step three, the arbitrary horizontal plane may be a side plane of the upper pressing seat (200) away from the pressing groove (210).

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