Oral fixed implant guide

Abstract

The application discloses an oral cavity fixed implant guide plate, which comprises a guide plate body, a tongue depressor fixed with the guide plate body, an oral cavity supporting mechanism and a mouth corner pushing mechanism. The oral cavity supporting mechanism comprises a supporting rod and an abutting part. The height of the supporting rod is adjustable, and the top of the supporting rod is connected with the abutting part. The bottom of the supporting rod is connected with a wedge-shaped block. The mouth corner pushing mechanism comprises a first guide assembly, a moving block, a second guide assembly, two rotating shafts and two pushing rod assemblies. The first guide assembly is connected between the tongue depressor and the supporting rod. The moving block is slidingly connected to the top of the tongue depressor and is located below the wedge-shaped block. The top of the moving block is provided with a wedge-shaped groove matched with the wedge-shaped block. The second guide assembly is arranged on the tongue depressor. An elastic reset member is connected between the tongue depressor and the moving block. The mouth corner pushing mechanism can pull and push the mouth corner outward when the oral cavity is supported by the oral cavity supporting mechanism, so that the surgical field is exposed, and the implantation can be observed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a fixed dental implant guide. Background Technology

[0002] Missing teeth not only affects a patient's daily diet but also their personal image. Dental implant surgery is a technique that involves placing dental implants in the mouth to fill in missing teeth. The success of dental implant surgery depends on precise, restorative-oriented implant placement. Conventional free tooth implantation often relies on the surgeon's experience and requires repeated verification during the procedure. For a novice implant surgeon, this often takes more time and may not result in precise implant placement.

[0003] To improve the accuracy of implantation, implant guides are currently used to guide the precise placement of implants. The implant guide is fixed to the gum and the implantation is guided by the guide holes set on the implant guide.

[0004] Because patients need to keep their mouths open during implantation, some implant guides now include a separate support device to support the oral cavity and prevent injury caused by the patient closing their mouth during the procedure. However, during the process of keeping the mouth open, the corners of the patient's mouth will retract, reducing the surgical field of view. This is especially true when the implant is located near the corners of the mouth, as the retracted corners of the mouth can significantly affect the observation field of the implant, thus making the implantation surgery more difficult. Summary of the Invention

[0005] The purpose of this invention is to provide a fixed oral implant guide to solve the problem that when using an implant guide to guide tooth implantation, the corner of the mouth, after being opened, tends to retract and obstruct the surgical field of view when the implant position is close to the corner of the mouth.

[0006] The technical solution of this invention is: A fixed oral implant guide includes a guide body and a tongue depressor fixed to the guide body, as well as an oral support mechanism, a power conversion mechanism, and two sets of mouth corner opening mechanisms. The oral support mechanism is disposed on the tongue depressor and includes a support rod and an abutment portion. The height of the support rod is adjustable, and the top of the support rod is connected to the abutment portion, which is used to abut against the palate. The power conversion mechanism includes a first guide assembly, a wedge block, a moving block, a second guide assembly, and an elastic reset member. The first guide assembly is connected between the tongue depressor and the support rod for moving the support rod vertically. The wedge block is connected to the bottom of the support rod. The moving block is slidably connected to the top of the tongue depressor. The movable block is located below the wedge-shaped block, and its top has a wedge-shaped groove that matches the wedge-shaped block. A second guide assembly is disposed on the tongue depressor plate to guide the movable block to move horizontally when the wedge-shaped block moves downward to squeeze the wedge-shaped groove. An elastic reset member is connected between the tongue depressor plate and the movable block to reset the movable block after it slides. Two sets of mouth corner opening mechanisms are symmetrically disposed on both sides of the movable block. Each mouth corner opening mechanism includes a rotating shaft, a gear, a rack, and a lever assembly. The lower end of the rotating shaft is rotatably connected to the tongue depressor plate. The gear is fixedly fitted to the rotating shaft. The rack is fixed to the side wall of the movable block and meshes with the gear. The lever assembly is connected to the rotating shaft.

[0007] Preferably, as a further improvement of the present invention, the top of the tongue depressor is provided with a support housing, the first guide component is a first opening opened on the top of the support housing, the support rod is slidably connected in the first opening, the second guide component is a second opening opened at the bottom of the side wall of the support housing, and the moving block is slidably connected in the second opening.

[0008] Preferably, as a further improvement of the present invention, the reset member includes a first reset spring, the first reset spring being horizontally disposed within the support housing, and one end of the first reset spring being connected to the end of the movable block, and the other end of the first reset spring being connected to the inner wall of the support housing.

[0009] Preferably, as a further improvement of the present invention, the inner walls of both sides of the support housing are provided with limiting grooves arranged longitudinally therein, the lower end of the support rod is connected to a horizontally arranged slider, the two side walls of the slider are respectively slidably connected in the two limiting grooves, and the wedge block is fixed to the bottom of the slider.

[0010] Preferably, as a further improvement of the present invention, a plurality of second return springs are connected between the inner top surface of the support housing and the top of the slider.

[0011] Preferably, as a further improvement of the present invention, the lever assembly includes a connecting rod, a V-shaped lever, and an arc-shaped traction block; one end of the connecting rod is fixed to the rotating shaft; the V-shaped lever is collinearly arranged with the connecting rod, and the pointed end of the V-shaped lever is fixed to the other end of the connecting rod; the arc-shaped traction block is fixedly connected to the open end of the V-shaped lever.

[0012] Preferably, as a further improvement of the present invention, the top of the tongue depressor is provided with a support frame, and a strip-shaped groove is opened on the side wall of the support frame. The connecting rod is a telescopic sleeve structure, including an outer sleeve and an inner rod body. The outer sleeve passes through the strip-shaped groove, and one end of the outer sleeve is fixed to the side wall of the rotating shaft. One end of the inner rod body is slidably connected to the outer sleeve, and the other end of the inner rod body is connected to the V-shaped lever. An inclined adjusting rod is provided between the inner rod body and the support frame, and the two ends of the adjusting rod are respectively hinged to the inner rod body and the support frame.

[0013] Preferably, as a further improvement of the present invention, the support rod includes a first rod body, a second rod body, a threaded sleeve and an adjusting bolt. The top of the second rod body is provided with a receiving groove. The lower side of the first rod body is slidably connected in the receiving groove. The threaded sleeve is fixed on the side wall of the second rod body and communicates with the receiving groove. The adjusting bolt is threadedly connected in the threaded sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The two sets of mouth corner opening mechanisms can pull open the mouth corners when the oral cavity is opened by the oral support mechanism, thereby expanding the surgical field of vision for observation and implantation. This effectively solves the problem that the mouth corners retract after the oral cavity is opened when the implantation site is close to the mouth corners, which can easily obstruct the surgical field of vision.

[0015] 2. When the corners of the mouth are pulled open by two sets of mouth corner opening mechanisms, the mouth support mechanism and the power conversion mechanism can be used as driving elements to drive the mouth corner opening mechanism. With the help of the patient's upper jaw pressing down on the contact part, the power conversion mechanism converts the vertical movement of the support rod into the horizontal movement of the moving block. When the moving block moves, it will drive the rotating shafts located on both sides of the moving block to rotate through the transmission of the gear and rack in the mouth corner opening mechanism, thereby driving the two lever assemblies to realize the process of expanding and pulling the corners of the mouth on both sides. There is no need to rely on other driving elements for driving, and the patient can control the degree of mouth corner opening by himself.

[0016] 3. When adjusting the size of the oral cavity, the height of the support rod can be adjusted to make the abutment part abut against the patient's palate according to the different opening diameters of different patients, and the abutment part is used to support the patient's palate. Attached Figure Description

[0017] Figure 1This is a frontal three-dimensional structural diagram of a fixed dental implant guide plate according to the present invention.

[0018] Figure 2 This is a rear-view three-dimensional structural diagram of a fixed dental implant guide plate according to the present invention.

[0019] Figure 3 This is a top view schematic diagram of a fixed dental implant guide plate according to the present invention.

[0020] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the shell in a fixed dental implant guide of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of a wedge block in a fixed dental implant guide of the present invention during compression and movement.

[0022] Figure 6 This is a three-dimensional structural diagram of an optimized scheme of a fixed dental implant guide according to the present invention.

[0023] Figure 7 For the present invention Figure 6 A top-view structural diagram. Detailed Implementation

[0024] The following is combined Figures 1-7 The specific embodiments of the present invention will be described in detail below. In the description of the invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the invention, unless otherwise stated, "a plurality of" means two or more.

[0026] Example like Figures 1-5As shown, this embodiment of the invention provides a fixed dental implant guide, including a guide body 1 and a tongue depressor 2 fixed to the guide body 1. The guide body 1 is an arc-shaped plate that matches the curvature of the jawbone. The lower part of the guide body 1 has a groove for holding it in place on the jawbone. Multiple fixing holes 11 are provided on the outer arc wall of the guide body 1. The fixing holes 11 are used to pass fixing bolts to fix the guide body 1 to the jawbone. A guide positioning hole 12 is provided on the top of the guide body 1. The installation position of the guide positioning hole 12 is customized according to the actual location of all implants in the patient. The guide positioning hole 12 guides the implant drill bit. During the operation, the guide body 1 is first placed on the patient's jawbone. Then, fixing bolts are used to pass through the fixing holes 11 to fix the guide body 1 to the patient's jawbone. The tongue depressor 2 limits the patient's tongue to prevent it from moving around and causing damage during the operation. After the guide body 1 is fixed, the guide positioning hole 12 guides the implant drill bit.

[0027] To adjust the opening size and thus the field of vision during implantation guidance, an oral support mechanism, a power conversion mechanism, and two sets of corner-opening mechanisms are included. The oral support mechanism is mounted on the tongue depressor 2 and includes a support rod 31 and an abutment part 32. The height of the support rod 31 is adjustable, and the top of the support rod 31 is connected to the abutment part 32, which abuts against the palate. The power conversion mechanism includes a first guide assembly 41, a wedge block 42, a moving block 43, a second guide assembly 44, and an elastic reset member 45. The first guide assembly 41 is connected between the tongue depressor 2 and the support rod 31, allowing the support rod 31 to move vertically. The wedge block 42 is connected to the bottom of the support rod 31. The moving block 43 is slidably connected to the top of the tongue depressor 2 and positioned... Below the wedge block 42, the top of the moving block 43 is provided with a wedge groove 431 that matches the wedge block 42; the second guide assembly 44 is provided on the tongue depressor 2 and is used to guide the moving block 43 to move horizontally when the wedge block 42 moves downward to squeeze the wedge groove 431; the elastic reset member 45 is connected between the tongue depressor 2 and the moving block 43 and is used to reset the moving block 43 after it slides; two sets of mouth corner opening mechanisms are symmetrically arranged on both sides of the moving block 43. The mouth corner opening mechanism includes a rotating shaft 51, a gear 52, a rack 53 and a lever assembly; the lower end of the rotating shaft 51 is rotatably connected to the tongue depressor 2; the gear 52 is fixedly fitted to the rotating shaft 51; the rack 53 is fixed on the side wall of the moving block 43 and meshes with the gear 52; the lever assembly is connected to the rotating shaft 51.

[0028] In this embodiment, when adjusting the size of the oral cavity, the height of the support rod 31 is adjusted according to the different mouth opening diameters of different patients so that the abutment part 32 abuts against the patient's palate. The abutment part 32 supports the patient's palate, preventing the mouth from closing during implantation. At the same time, as the mouth opening diameter increases, the corners of the mouth will contract. Therefore, the corner-opening mechanism can pull open the corners of the mouth, expanding the surgical field. When pulling with the corner-opening mechanism, the oral support mechanism and the power conversion mechanism work together as driving elements to drive the corner-opening mechanism to move. Specifically, the patient's palate presses down on the abutment part 32, causing the support rod 31 and the wedge block 42 to descend under the guidance of the first guide component 41. During the descent, the wedge block 42 will squeeze the wedge groove 431, causing the moving block 43 to move horizontally under the guidance of the second guide component 44. The power conversion mechanism converts the vertical movement of the support rod 31 into the horizontal movement of the moving block 43. See the specific details below. Figure 3 As shown, when the moving block 43 moves horizontally forward, the racks 53 fixed on both sides of the moving block 43 will drive the meshing gears 52 to rotate, which in turn will drive the rotating shaft 51 on the right side to rotate clockwise and the rotating shaft 51 on the left side to rotate counterclockwise. During the rotation of the two rotating shafts 51, the lever assembly will rotate synchronously. The lever assembly will be used to achieve the expansion and traction of the corners of the mouth on both sides, thereby increasing the surgical field of vision and facilitating the operation of the doctor. Due to the presence of the elastic reset member 45, the movement position of the moving block 43 will be limited. Thus, the patient only needs to slightly bite the abutment part 32 to move the support rod 31 downward and retract a certain distance to drive the corner opening mechanism to pull the corners of the mouth open. There is no need to rely on other driving elements for driving. The patient can control the degree of mouth opening. After the corners of the mouth are pulled open, the height of the support rod 31 can be adjusted to drive the abutment part 32 to rise and open the palate, restoring the initial mouth opening size.

[0029] In other embodiments of the invention, such as Figures 2-4 As shown, the top of the tongue depressor 2 is provided with a support housing 4. The first guide component 41 is a first opening opened on the top of the support housing 4. The support rod 31 is slidably connected in the first opening. The second guide component 44 is a second opening opened at the bottom of the side wall of the support housing 4. The moving block 43 is slidably connected in the second opening.

[0030] In this embodiment, the supporting housing 4 is used to hide and protect some of the structures in the oral cavity support mechanism and the corner-of-mouth opening mechanism. At the same time, the first opening on the top of the supporting housing 4 serves as the first guide component 41 to guide the vertical movement of the support rod 31, and the second opening on the bottom of the side wall of the supporting housing 4 serves as the second guide component 44 to guide the horizontal movement of the moving block 43.

[0031] Specifically, such as Figure 4As shown, the elastic reset member 45 includes a first reset spring, which is horizontally disposed within the support housing 4. One end of the first reset spring is connected to the end of the moving block 43, and the other end of the first reset spring is connected to the inner wall of the support housing 4. The first reset spring provides elastic restraint on the moving block 43. During the movement of the moving block 43, the first reset spring is compressed. The first reset spring also provides a certain supporting force to the abutment portion 32 to support the patient's mouth opening.

[0032] In other embodiments of the invention, such as Figure 4 and Figure 5 As shown, as an optimized solution of the above scheme, the inner walls of both sides of the support housing 4 are provided with limiting grooves 401 arranged longitudinally, the lower end of the support rod 31 is connected to a horizontally arranged slider 6, the two side walls of the slider 6 are respectively slidably connected in the two limiting grooves 401, and the wedge block 42 is fixed to the bottom of the slider 6.

[0033] In this embodiment, the limiting groove 401 is used to limit the position of the support rod 31 moving downward and driving the slider 6 to move, so as to prevent the support rod 31 from moving beyond the limit and causing excessive pulling amplitude of the corner of the mouth, resulting in damage.

[0034] In other embodiments of the invention, such as Figure 4 and Figure 5 As shown, as an optimized solution to the above scheme, a plurality of second return springs 61 are connected between the inner top surface of the support housing 4 and the top of the slider 6.

[0035] In this embodiment, through the above-mentioned settings, the additional second return springs 61 can provide stronger support for the support rod 31 during initial installation, so that when the patient's palate is abutted by the abutment part 32, the resistance of the support rod 31 is increased, and the process of the mouth corner opening mechanism being driven by the patient's slight force to compress the first return spring 53 is avoided, which requires force adjustment to control the process.

[0036] In other embodiments of the invention, such as Figure 2 and Figure 3 As shown, in one specific embodiment of the lever assembly, the lever assembly includes a connecting rod 71, a V-shaped lever 72, and an arc-shaped traction block 73; one end of the connecting rod 71 is fixed to the rotating shaft 51; the V-shaped lever 72 is arranged collinearly with the connecting rod 71, and the pointed end of the V-shaped lever 72 is fixed to the other end of the connecting rod 71; the arc-shaped traction block 73 is fixedly connected to the open end of the V-shaped lever 72.

[0037] In this embodiment, by setting the lever assembly into three parts: a connecting rod 71, a V-shaped lever 72, and an arc-shaped traction block 73, the V-shaped lever 72 can pull the open corner of the mouth while the connecting rod 71 is rotated by the rotating shaft 51. At the same time, the V-shaped lever 72 can support the upper and lower bottom surfaces of the corner of the mouth, and the arc-shaped traction block 73 can hook the outer skin of the corner of the mouth to prevent it from detaching from the V-shaped lever 72.

[0038] In other embodiments of the invention, such as Figure 6 and Figure 7 As shown, as an optimized solution to the above scheme, the top of the tongue depressor 2 is provided with a support frame 8, and a strip-shaped slot 81 is opened on the side wall of the support frame 8. The connecting rod 71 is a telescopic sleeve structure, including an outer sleeve 711 and an inner rod 712. The outer sleeve 711 passes through the strip-shaped slot 81, and one end of the outer sleeve 711 is fixed to the side wall of the rotating shaft 51. One end of the inner rod 712 is slidably connected to the outer sleeve 711, and the other end of the inner rod 712 is connected to the V-shaped lever 72. An inclined adjusting rod 82 is provided between the inner rod 712 and the support frame 8. The two ends of the adjusting rod 82 are respectively hinged to the inner rod 712 and the support frame 8.

[0039] In this embodiment, by setting the original connecting rod 71 as an outer tube 711 and an inner rod body 712, the length of the connecting rod 71 can be adjusted for extension and retraction. An adjusting rod 82 is hinged between the inner rod body 712 and the support frame 8. As the angle of rotation of the V-shaped lever 72 increases, the connecting rod 71 will extend under the support of the adjusting rod 82, thereby causing the V-shaped lever 72 to move outward of the oral cavity. As the pulling amplitude of the corner of the mouth increases, the width of the contact between the V-shaped lever 72 and the upper and lower side walls of the corner of the mouth will decrease to adapt to the extreme pulling amplitude of the corner of the mouth and avoid tearing the corner of the mouth.

[0040] In other embodiments of the invention, such as Figure 3 and Figure 4 As shown, in one specific embodiment where the height of the support rod 31 is adjustable, the support rod 31 includes a first rod body 311, a second rod body 312, a threaded sleeve 313, and an adjusting bolt 314. The top of the second rod body 312 is provided with a storage groove, and the bottom of the second rod body 312 is connected to the top of the slider 6. The lower side of the first rod body 311 is slidably connected in the storage groove. The threaded sleeve 313 is fixed on the side wall of the second rod body 312, and the threaded sleeve 313 communicates with the storage groove. The adjusting bolt 314 is threadedly connected in the threaded sleeve 313.

[0041] In this embodiment, the height of the support rod 31 is adjusted by the frictional contact of the adjusting bolt 314. Since the support rod 31 is divided into a first rod body 311 and a second rod body 312, and the first rod body 311 can slide relative to the second rod body 312, when adjusting the height of the support rod 31, it is only necessary to first loosen the adjusting bolt 314, adjust the position by sliding the first rod body 311, and after adjusting the height, tighten the adjusting bolt 314 so that the end of the adjusting bolt 314 abuts against the side wall of the first rod body 311. The self-locking ability of the thread between the adjusting bolt 314 and the threaded sleeve 313 and the frictional force between the adjusting bolt 314 and the first rod body 311 are used to lock the adjustment position of the first rod body 311.

[0042] In other embodiments of the invention, such as Figure 2 and Figure 3 As shown, in one specific embodiment of the lever assembly, the abutment part 32 is an arc-shaped abutment plate, the arc-shaped inner wall of the arc-shaped abutment plate is connected to the upper end of the first lever body 311, and the arc-shaped outer wall of the arc-shaped abutment plate is provided with a silicone layer.

[0043] In summary, this invention discloses a fixed oral implant guide. When adjusting the size of the oral cavity, the height of the support rod 31 is adjusted according to the different mouth opening diameters of different patients so that the abutment part 32 abuts against the patient's palate. The abutment part 32 supports the patient's palate, preventing the mouth from closing during implantation. At the same time, as the mouth opening diameter increases, the corners of the mouth will contract. Therefore, the corner opening mechanism can pull the corners of the mouth, expanding the surgical field. When pulling by the corner opening mechanism, the horizontal moving component is controlled to drive the moving block 43 to move along the length direction of the guide body 1. During the movement of the moving block 43, the rack 43 drives the gear 52 to rotate, which in turn drives the rotating shaft 51 to rotate. Since the rack 43, gear 52 and rotating shaft 51 are a pair and located on both sides of the moving block 43, refer to Figure 3 As shown, when the moving block 43 moves forward, it will cause the rotating shaft 51 on the right to rotate clockwise and the rotating shaft 51 on the left to rotate counterclockwise. During the rotation of the two rotating shafts 51, the lever assembly will rotate synchronously. The lever assembly will be used to achieve an expansion pull on both sides of the corners of the mouth, thereby increasing the surgical field of vision and making it easier for doctors to operate.

[0044] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A fixed dental implant guide, comprising a guide body (1) and a tongue depressor (2) fixed to the guide body (1), characterized in that, Also includes: An oral support mechanism is provided on the tongue depressor (2), including a support rod (31) and an abutment part (32). The height of the support rod (31) is adjustable, and the top of the support rod (31) is connected to the abutment part (32). The abutment part (32) is used to abut against the palate. The power conversion mechanism includes: a first guide assembly (41) connected between the tongue depressor (2) and the support rod (31) for moving the support rod (31) vertically; a wedge block (42) connected to the bottom of the support rod (31); a moving block (43) slidably connected to the top of the tongue depressor (2) and located below the wedge block (42), wherein the top of the moving block (43) is provided with a wedge groove (431) matching the wedge block (42); a second guide assembly (44) disposed on the tongue depressor (2) for guiding the moving block (43) to move horizontally when the wedge block (42) moves downward to squeeze the wedge groove (431); and an elastic reset member (45) connected between the tongue depressor (2) and the moving block (43) for resetting the moving block (43) after it slides. Two sets of mouth corner opening mechanisms are symmetrically arranged on both sides of the moving block (43). The mouth corner opening mechanism includes: a rotating shaft (51), the lower end of which is rotatably connected to the tongue depressor (2); a gear (52), which is fixedly connected to the rotating shaft (51); a rack (53), which is fixed on the side wall of the moving block (43) and meshes with the gear (52); and a lever assembly, which is connected to the rotating shaft (51). The top of the tongue depressor (2) is provided with a support housing (4), the first guide component (41) is a first opening opened on the top of the support housing (4), the support rod (31) is slidably connected in the first opening, the second guide component (44) is a second opening opened at the bottom of the side wall of the support housing (4), and the moving block (43) is slidably connected in the second opening; The elastic reset member (45) includes a first reset spring, which is horizontally disposed inside the support housing (4), and one end of the first reset spring is connected to the end of the moving block (43), and the other end of the first reset spring is connected to the inner wall of the support housing (4).

2. The fixed dental implant guide according to claim 1, characterized in that, The inner walls of both sides of the support housing (4) are provided with limiting grooves (401) arranged longitudinally. The lower end of the support rod (31) is connected to a horizontally arranged slider (6). The two sides of the slider (6) are respectively slidably connected in the two limiting grooves (401). The wedge block (42) is fixed to the bottom of the slider (6).

3. The fixed dental implant guide according to claim 2, characterized in that, A plurality of second return springs (61) are connected between the inner top surface of the support housing (4) and the top of the slider (6).

4. The fixed dental implant guide according to claim 1, characterized in that, The lever assembly includes: One end of the connecting rod (71) is fixed to the rotating shaft (51); The V-shaped lever (72) is arranged collinearly with the connecting rod (71), and the pointed end of the V-shaped lever (72) is fixed to the other end of the connecting rod (71); The arc-shaped traction block (73) is fixedly connected to the open end of the V-shaped lever (72).

5. The fixed dental implant guide according to claim 4, characterized in that, The top of the tongue depressor (2) is provided with a support frame (8), and a strip groove (81) is provided on the side wall of the support frame (8). The connecting rod (71) is a telescopic sleeve structure, including an outer sleeve (711) and an inner rod body (712). The outer sleeve (711) passes through the strip groove (81), and one end of the outer sleeve (711) is fixed to the side wall of the rotating shaft (51). One end of the inner rod body (712) is slidably connected to the outer sleeve (711), and the other end of the inner rod body (712) is connected to the V-shaped lever (72). An inclined adjusting rod (82) is provided between the inner rod body (712) and the support frame (8). The two ends of the adjusting rod (82) are respectively hinged to the inner rod body (712) and the support frame (8).

6. The fixed dental implant guide according to claim 1, characterized in that, The support rod (31) includes a first rod body (311), a second rod body (312), a threaded sleeve (313), and an adjusting bolt (314). The top of the second rod body (312) is provided with a storage groove. The lower side of the first rod body (311) is slidably connected in the storage groove. The threaded sleeve (313) is fixed on the side wall of the second rod body (312) and communicates with the storage groove. The adjusting bolt (314) is threadedly connected in the threaded sleeve (313).

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