Jaw fracture reduction fixator

Abstract

The invention belongs to the technical field of medical instruments and tools, and particularly relates to a jaw fracture reduction fixator which comprises a wearing structure, a fixing frame is arranged on the front side of the wearing structure, an adjusting piece is arranged in the middle of the fixing frame, two connecting pieces are connected to the rear portion of the adjusting piece, and traction pieces are connected to the rear portions of the two connecting pieces. An elastic head hoop is arranged in the wearing structure, an elastic forehead hoop is fixedly connected to the front portion of the elastic head hoop, the included angle of 120 degrees is formed between the two elastic hoops, meanwhile, silica gel layers are arranged on the inner sides of the two elastic hoops, and when the device is used, the device can be worn on the head of a patient through the two elastic hoops in the wearing structure; the two elastic hoops with the included angle of 120 degrees can guarantee the wearing stability of the device firstly, and then the device is worn by adopting a hoop-shaped structure, so that the influence of the device on the afterbrain and the neck of a patient when the patient has a rest can be avoided, the normal rest of the patient cannot be influenced, and the comfort of the device in wearing and using can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, in particular to a jaw fracture reduction and fixation device. Background Art

[0002] In first aid for trauma, there is such a situation: when the maxilla is fractured, it is easy to fall downward, and the organs in the mouth move downward, affecting breathing; when the mandible is fractured, it is easy to move backward, and the tongue is pulled back under the traction of the muscles, blocking the trachea, causing difficulty in breathing and suffocation.

[0003] After searching, in a temporary fixator for mandibular fractures with announcement number CN209253266U, the utility model discloses a temporary fixator for mandibular fractures, which relates to the field of medical device technology, including a neck fixer in the shape of a circular tube and a mandibular fixer installed above the neck fixer, an inverted U-shaped bracket installed between the mandibular fixer and the neck fixer, the mandibular fixer includes an adjustment seat, a mandibular tray installed at the bottom end of the adjustment seat and having the same shape as the mandibular bone, and a maxillary tray installed at the top end of the adjustment seat and having the same shape as the maxilla, the adjustment seat is horizontally welded to the crossbar of the U-shaped bracket, and the bottom ends of the two support rods of the U-shaped bracket are hinged to the outer wall of the mandibular fixer. The utility model can fix only the maxilla or the mandibular bone, or both at the same time, without increasing the patient's pain, and the operation process is fast, which is very suitable for mandibular fixation in emergency treatment;

[0004] After searching, in the temporary fixator for mandibular fractures with publication number CN103767818A, the invention relates to a temporary fixator for mandibular fractures, including a head cap, straps on both sides of the head cap, a downwardly extending slide fixed in front of the head cap, a slide plate sliding relative to the slide plate in the slide plate, the slide plate is connected by a detachable fixing method, a plurality of holes are provided at the bottom of the slide plate, and also includes an upper jaw tray and a lower jaw tray, the upper jaw tray is the same shape as the upper jaw, the lower jaw tray is the same shape as the lower jaw, the upper jaw tray and the lower jaw tray have a tray handle at the end, the tray handle has a hole at the end, and the hole at the end of the tray handle is connected to the hole of the slide plate by a detachable fixing method. It can be fixed only to the upper jaw or the lower jaw, or both can be fixed at the same time, which does not increase the patient's pain, and the operation process is fast, which is very suitable for jaw fixation in emergency treatment;

[0005] In the above technical solution, the device is connected and fixed to the patient by using a neck fixing member and a head cap, respectively, and the structures for fixing the upper and lower jaws of the patient are arc-shaped trays and plate-type trays, respectively, but the following defects still exist:

[0006] 1. When used on patients with minor jaw fractures who do not require internal fixation, the neck fixation device and head cap will affect the patient when he / she is resting, which will affect the patient's experience;

[0007] 2. The arc-shaped tray can only play a supporting role and cannot limit and fix the patient's upper and lower jaws. The plate-shaped tray is placed directly in the patient's mouth, which will cause pressure on the patient's oral tissues, affect the movement of the tongue, and cause the patient to be unable to swallow saliva normally, which may cause the patient to suffocate.

[0008] Therefore, in view of the above problems, a jaw fracture reduction and fixation device is proposed. Summary of the invention

[0009] 1. Technical issues to be resolved

[0010] In view of the deficiencies of the prior art, the present invention provides a mandibular fracture reduction and fixation device, which solves the problems in the prior art that the patient's rest is affected when wearing the device, and the upper and lower jaws of the patient are not firmly fixed and the fixation is uncomfortable.

[0011] (II) Technical solution

[0012] To achieve the above object, the present invention provides the following technical solution: a mandibular fracture reduction and fixation device, comprising a wearing structure, a fixing frame is arranged at the front side of the wearing structure, an adjusting member is arranged in the middle of the fixing frame, the rear part of the adjusting member is connected to two connecting members, and the rear parts of the two connecting members are both connected to a traction member;

[0013] The wearing structure comprises an elastic headband, the front middle part of which is fixedly connected to an elastic forehead band, and the angle between the elastic headband and the upper part of the elastic forehead band is 120 degrees;

[0014] The traction member includes a connecting slider, the rear end of which is fixedly connected to a U-shaped tooth tray, a tooth socket is provided on the U-shaped tooth tray, the tooth socket is filled with plastic material, and two fifth connecting holes distributed front and back are provided on the upper front side of the connecting slider, and second fastening nails are threadedly connected to the two fifth connecting holes.

[0015] Preferably, the lower left side and lower right side of the elastic headband are fixedly connected to an auricle positioning frame, the lower left side and lower right side of the elastic headband are each provided with a first connecting hole, and the inner side of the elastic headband, the inner side of the elastic forehead band and the side where the two auricle positioning frames are close to each other are fixedly connected with a silicone layer.

[0016] Preferably, the fixing frame comprises a U-shaped frame, a plurality of limiting grooves distributed in an equidistant circular array are provided in the middle of the outer surface of the U-shaped frame, and a first connecting block is fixedly connected to the rear left side and the rear right side of the U-shaped frame.

[0017] Preferably, a second connecting hole is opened on the side of the two first connecting blocks away from each other, and the inside of the two second connecting holes is threadedly connected with a first fastening nail, and the two first connecting blocks are respectively connected to the two first connecting holes in the elastic head hoop through the two first fastening nails.

[0018] Preferably, the adjusting member includes a first arc-shaped clamp plate and a second arc-shaped clamp plate, and the upper part of the first arc-shaped clamp plate and the upper part of the second arc-shaped clamp plate and the lower part of the first arc-shaped clamp plate are jointly provided with two connecting components, and the inner side of the first arc-shaped clamp plate and the inner side of the second arc-shaped clamp plate are fixedly connected with a plurality of limit strips distributed in an equidistant circular array, and the first arc-shaped clamp plate and the second arc-shaped clamp plate are fixedly connected to the middle part of the U-shaped frame through four connecting components, and a plurality of the limit strips are respectively engaged with a plurality of limit grooves.

[0019] Preferably, a first fixing plate is fixedly connected to the rear of the first arc-shaped clamping plate, and a plurality of third connecting holes distributed in an equidistant array are provided on the upper rear end and the lower rear end of the first fixing plate.

[0020] Preferably, the connecting assembly includes a first fixed block and a second fixed block, a longitudinal through groove is opened in the middle of the front end of the first fixed block, a circular movable groove is opened in the rear wall of the through groove, the first fixed block is fixedly connected to the first arc-shaped clamping plate, and the second fixed block is fixedly connected to the second arc-shaped clamping plate.

[0021] Preferably, a movable hole is provided in the middle part of the front end of the second fixed block, a limiting slide groove is provided on the front side of the movable hole, and an adjusting rod is movably connected to the movable hole, a limiting plate is fixedly connected to the front of the outer surface of the adjusting rod, and the limiting plate is located inside the limiting slide groove, a strip-shaped second connecting block is fixedly connected to the rear end of the adjusting rod, and the second connecting block has the same shape as the through groove and is located inside the movable groove, an adjusting button is fixedly connected to the front end of the adjusting rod, and the adjusting button is located at the front of the second fixed block.

[0022] Preferably, the connecting member includes a second fixing plate, a third fixing plate is fixedly connected to one side of the rear end of the second fixing plate, a connecting slide groove is provided on the third fixing plate, two fourth connecting holes distributed on the left and right are provided on the side of the front end of the second fixing plate away from the third fixing plate, bolts are provided inside the two fourth connecting holes, the rear parts of the two bolts are fixedly connected to clamping plates, the front parts of the two clamping plates are fixedly connected to a plurality of scales distributed in an equidistant circular array, the front sides of the two bolts are threadedly connected to nuts, and the second fixing plate is detachably connected to the first fixing plate by two bolts and two nuts.

[0023] Preferably, the connecting slide block is located inside the connecting slide groove and is slidably connected to the connecting slide groove, and the connecting slide block is limitedly fixed by two second fastening nails and a third fixing plate.

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the present invention provides a jaw fracture reduction and fixation device having the following features:

[0026] Beneficial effects:

[0027] 1. The mandibular fracture reduction and fixation device has an elastic headband in the wearing structure, and an elastic forehead band is fixedly connected to the front of the elastic headband, and the two elastic bands form an angle of 120 degrees. At the same time, a silicone layer is provided on the inner sides of the two elastic bands. When using the device, the two elastic bands in the wearing structure can be worn on the patient's head. The two elastic bands with an angle of 120 degrees can firstly ensure the wearing stability of the device. Secondly, the hoop-shaped structure can be used for wearing, which can avoid the impact of the device on the back of the patient's head and neck when the patient is resting, will not affect the patient's normal rest, and can improve the comfort of the device when worn.

[0028] 2. The mandibular fracture reduction and fixation device has a U-shaped dental tray in the traction part. Before using the device, a dental tray that fits the patient's mouth shape and tooth shape can be printed out through 3D printing, and then an appropriate amount of plastic material is added to the tooth socket inside the dental tray. Finally, the U-shaped dental tray is placed in the patient's mouth, and the patient's teeth are placed inside the tooth socket. After the plastic material solidifies, the traction part and other parts are connected and fixed to play a traction and restriction role on the broken bone. The U-shaped dental tray plus the plastic material added inside can better fix the patient's upper jaw or lower jaw. At the same time, the U-shaped dental tray can reduce contact with other human tissues inside the patient's mouth, reduce pressure on the patient's mouth, avoid the risk of suffocation of the patient, and improve the comfort of the patient in using the device.

[0029] 3. The mandibular fracture reduction and fixation device is provided with an adjustable fixing frame, adjusting member and connecting member. When the device is used, the use position and angle of the traction member can be adjusted through the fixing frame, adjusting member and connecting member. At the same time, the traction member can also adjust the upper and lower jaw operations through the connecting member, which is more convenient for the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1It is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 It is a left side view of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the wearing structure of the present invention;

[0034] Figure 4 It is a three-dimensional structural schematic diagram of the fixing frame of the present invention;

[0035] Figure 5 The present invention Figure 4 A magnified view of Figure A;

[0036] Figure 6 It is a three-dimensional structural schematic diagram of the adjusting member of the present invention;

[0037] Figure 7 It is a schematic cross-sectional view of the three-dimensional structure of the connection assembly of the present invention;

[0038] Figure 8 It is a three-dimensional structural schematic diagram of the connecting piece of the present invention;

[0039] Fig. 9 It is a three-dimensional structural schematic diagram of the traction member of the present invention.

[0040] In the figure: 1. wearing structure; 2. fixing frame; 3. adjusting member; 4. connecting member; 5. traction member; 11. elastic headband; 12. elastic forehead band; 13. first connecting hole; 14. auricle positioning frame; 15. silicone layer; 21. U-shaped frame; 22. limiting groove; 23. first connecting block; 24. second connecting hole; 25. first fastening nail; 31. first arc splint; 32. second arc splint; 33. connecting assembly; 34. limiting strip; 35. first fixing plate; 36. third connecting hole; 331. first fixing block; 33 2. Second fixed block; 333. Through slot; 334. Movable slot; 335. Movable hole; 336. Limiting slide slot; 337. Adjusting rod; 338. Limiting plate; 339. Second connecting block; 3310. Adjusting button; 41. Second fixed plate; 42. Third fixed plate; 43. Connecting slide slot; 44. Fourth connecting hole; 45. Bolt; 46. Clamping plate; 47. Ruler; 48. Nut; 51. Connecting slider; 52. U-shaped tooth bracket; 53. Tooth socket; 54. Plastic material; 55. Fifth connecting hole; 56. Second fastening nail. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Specific examples are given below.

[0043] See also Figure 1 and Figure 2 The present invention provides a mandibular fracture reduction and fixation device, including a wearing structure 1, a fixing frame 2 is arranged on the front side of the wearing structure 1, an adjusting member 3 is arranged in the middle of the fixing frame 2, the rear of the adjusting member 3 is connected to two connecting members 4, and the rear of the two connecting members 4 are both connected to a traction member 5.

[0044] Further Figure 1-Figure 3 As shown, the wearing structure 1 includes an elastic headband 11, to which an elastic forehead band 12 is fixedly connected in the middle of the front side of the elastic headband 11, and the angle between the elastic headband 11 and the upper part of the elastic forehead band 12 is 120 degrees. The elastic headband 11 is fixedly connected to an auricle positioning frame 14 on the left side and the right side of the lower part. The elastic headband 11 is provided with a first connecting hole 13 on the lower left side and the lower right side. A silicone layer 15 is fixedly connected to the inner side of the elastic headband 11, the inner side of the elastic forehead band 12 and the side where the two auricle positioning frames 14 are close to each other.

[0045] Through the above scheme: the wearing structure 1 integrates ergonomic principles, and by introducing a double-hoop structure of an elastic headband 11 and an elastic forehead band 12, a 120-degree angle is cleverly formed between the two to ensure a firm fit on the patient's head, while minimizing pressure on the back of the head and neck, ensuring the patient's comfort and freedom when resting. In particular, the inner sides of the two parts of the hoop are covered with a soft silicone layer 15, which further enhances the wearing comfort experience.

[0046] Further Figure 1 , Figure 2 and Fig. 9 As shown, the traction member 5 includes a connecting slider 51, a U-shaped tooth tray 52 is fixedly connected to the rear end of the connecting slider 51, a tooth groove 53 is provided on the U-shaped tooth tray 52, the tooth groove 53 is filled with plastic material 54, and two fifth connecting holes 55 distributed front and back are provided on the upper front side of the connecting slider 51, and the second fastening nails 56 are threadedly connected to the two fifth connecting holes 55.

[0047] Through the above scheme: the traction part 5 introduces a highly personalized U-shaped mouth tray 52 design. This design not only accurately matches the patient's oral shape through 3D printing technology, but also allows plastic material 54 to be injected into the tooth socket 53 inside the mouth tray. After it solidifies, it forms a fixed structure that fits tightly with the patient's teeth. This customized U-shaped mouth tray 52 not only enhances the fixation effect of the jaw, but also reduces the pressure on other tissues inside the oral cavity due to its unique structure, effectively reduces the risk of suffocation, and improves the overall comfort of the patient.

[0048] Further Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the fixing frame 2 includes a U-shaped frame 21, and a plurality of limiting grooves 22 distributed in an equidistant circular array are provided in the middle of the outer surface of the U-shaped frame 21. The left rear side and the right rear side of the U-shaped frame 21 are fixedly connected with first connecting blocks 23, and the two first connecting blocks 23 are provided with second connecting holes 24 on the sides away from each other, and the two second connecting holes 24 are threadedly connected with first fastening nails 25 inside, and the two first connecting blocks 23 are respectively connected to the two first connecting holes 13 in the elastic headband 11 through the two first fastening nails 25.

[0049] Through the above solution: the U-shaped frame 21 structure in the fixing frame 2 can adjust the use angle of the U-shaped frame 21 by loosening or tightening the first fastening nail 25 when the device is used, so that the device can be used to adapt to different patients' face shapes.

[0050] Further Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the adjusting member 3 includes a first arc-shaped clamping plate 31 and a second arc-shaped clamping plate 32, and the upper part of the first arc-shaped clamping plate 31 and the upper part of the second arc-shaped clamping plate 32 and the lower part of the first arc-shaped clamping plate 31 and the lower part of the second arc-shaped clamping plate 32 are jointly provided with two connecting components 33, and the inner side of the first arc-shaped clamping plate 31 and the inner side of the second arc-shaped clamping plate 32 are fixedly connected with a plurality of limiting strips 34 distributed in an equidistant circular array, and the first arc-shaped clamping plate 31 and the second arc-shaped clamping plate 32 are fixedly connected to the middle part of the U-shaped frame 21 through four connecting components 33, and the plurality of limiting strips 34 are respectively engaged with the plurality of limiting grooves 22, and the rear part of the first arc-shaped clamping plate 31 is fixedly connected with a first fixing plate 35, and the upper part and the lower part of the rear end of the first fixing plate 35 are both provided with a plurality of third connecting holes 36 distributed in an equidistant array, and the connecting component 33 includes a first fixing block 331 and a second fixing block 332, and the first fixing block A longitudinal through slot 333 is provided in the middle of the front end of 331, and a circular movable slot 334 is provided in the rear wall of the through slot 333. The first fixed block 331 is fixedly connected to the first arc-shaped clamping plate 31, and the second fixed block 332 is fixedly connected to the second arc-shaped clamping plate 32. A movable hole 335 is provided in the middle of the front end of the second fixed block 332, and a limiting sliding slot 336 is provided on the front side of the movable hole 335, and an adjusting rod 337 is movably connected inside the movable hole 335. A limiting plate 338 is fixedly connected to the front of the outer surface of the adjusting rod 337, and the limiting plate 338 is located inside the limiting sliding slot 336. A strip-shaped second connecting block 339 is fixedly connected to the rear end of the adjusting rod 337, and the second connecting block 339 has the same shape as the through slot 333 and is located inside the movable slot 334. An adjusting button 3310 is fixedly connected to the front end of the adjusting rod 337, and the adjusting button 3310 is located at the front of the second fixed block 332.

[0051] Through the above scheme: by providing a plurality of limit strips 34 in the adjusting member 3, the adjusting member 3 can be engaged and connected with the plurality of limit grooves 22 in the fixing frame 2 through the plurality of limit strips 34 when adjusting the use angle, so that the angle of the adjusting member 3 can be prevented from changing due to the pressure of the upper and lower jaws of the patient during use, thereby ensuring the safety of the device when in use.

[0052] Further Figure 1 , Figure 2 and Figure 8As shown, the connecting member 4 includes a second fixing plate 41, a third fixing plate 42 is fixedly connected to one side of the rear end of the second fixing plate 41, a connecting slide groove 43 is provided on the third fixing plate 42, and two fourth connecting holes 44 distributed on the left and right are provided on the side of the front end of the second fixing plate 41 away from the third fixing plate 42, bolts 45 are provided inside the two fourth connecting holes 44, the rear parts of the two bolts 45 are fixedly connected to clamping plates 46, the front parts of the two clamping plates 46 are fixedly connected to a plurality of scale blades 47 distributed in an equidistant circular array, the front sides of the two bolts 45 are threadedly connected to nuts 48, the second fixing plate 41 is detachably connected to the first fixing plate 35 by the two bolts 45 and the two nuts 48, the connecting slider 51 is located inside the connecting slide groove 43 and is slidably connected to the connecting slide groove 43, and the connecting slider 51 is limitedly fixed to the third fixing plate 42 by two second fastening nails 56.

[0053] Through the above scheme: by opening a connecting groove 43 on the third fixing plate 42 in the connecting member 4, the traction member 5 is connected to the connecting groove 43 in the connecting member 4. When the device is used, the traction member 5 can be adjusted and fixed in the connecting groove 43, so that the device can adapt to the use of stretching traction of different lengths, which can improve the practicality of the device.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A jaw fracture reduction and fixation device, comprising a wearing structure (1), characterized in that: The wearing structure (1) is provided with a fixing frame (2) at the front side, an adjusting member (3) is provided at the middle of the fixing frame (2), the rear of the adjusting member (3) is connected to two connecting members (4), and the rear of the two connecting members (4) are both connected to a traction member (5); The wearing structure (1) comprises an elastic headband (11), wherein an elastic forehead band (12) is fixedly connected to the middle of the front side of the elastic headband (11), and the angle between the elastic headband (11) and the upper part of the elastic forehead band (12) is 120 degrees; The traction member (5) comprises a connecting slider (51), the rear end of the connecting slider (51) is fixedly connected to a U-shaped dental tray (52), a tooth socket (53) is provided on the U-shaped dental tray (52), the tooth socket (53) is filled with a plastic material (54), and the upper front side of the connecting slider (51) is provided with two fifth connecting holes (55) distributed front and back, and the two fifth connecting holes (55) are both threadedly connected with a second fastening nail (56).

2. The jaw fracture reduction and fixation device according to claim 1, characterized in that: The lower left side and the lower right side of the elastic headband (11) are both fixedly connected to an auricle positioning frame (14), the lower left side and the lower right side of the elastic headband (11) are both provided with a first connection hole (13), and the inner side of the elastic headband (11), the inner side of the elastic forehead band (12) and the side where the two auricle positioning frames (14) are close to each other are fixedly connected to a silicone layer (15).

3. The jaw fracture reduction and fixation device according to claim 1, characterized in that: The fixing frame (2) comprises a U-shaped frame (21), a plurality of limiting grooves (22) distributed in an equidistant circular array are provided in the middle of the outer surface of the U-shaped frame (21), and a first connecting block (23) is fixedly connected to the rear left side and the rear right side of the U-shaped frame (21).

4. The jaw fracture reduction and fixation device according to claim 3, characterized in that: A second connection hole (24) is provided on one side of the two first connection blocks (23) that is away from each other, and a first fastening nail (25) is threadedly connected inside the two second connection holes (24). The two first connection blocks (23) are respectively connected to the two first connection holes (13) in the elastic headband (11) via the two first fastening nails (25).

5. The jaw fracture reduction and fixation device according to claim 1, characterized in that: The adjusting member (3) comprises a first arc-shaped clamping plate (31) and a second arc-shaped clamping plate (32); the upper part of the first arc-shaped clamping plate (31) and the upper part of the second arc-shaped clamping plate (32) and the lower part of the first arc-shaped clamping plate (31) and the lower part of the second arc-shaped clamping plate (32) are jointly provided with two connecting components (33); the inner side of the first arc-shaped clamping plate (31) and the inner side of the second arc-shaped clamping plate (32) are fixedly connected with a plurality of limiting strips (34) distributed in an equidistant annular array; the first arc-shaped clamping plate (31) and the second arc-shaped clamping plate (32) are fixedly connected to the middle part of the U-shaped frame (21) through four connecting components (33); and the plurality of limiting strips (34) are respectively engaged with the plurality of limiting grooves (22).

6. The jaw fracture reduction and fixation device according to claim 5, characterized in that: The first arc-shaped clamping plate (31) is fixedly connected to a first fixing plate (35) at the rear, and a plurality of third connecting holes (36) distributed in an equidistant array are provided at the upper rear end and the lower rear end of the first fixing plate (35).

7. The jaw fracture reduction and fixation device according to claim 5, characterized in that: The connecting assembly (33) comprises a first fixing block (331) and a second fixing block (332); a longitudinally arranged through slot (333) is provided in the middle of the front end of the first fixing block (331); a circular movable slot (334) is provided in the inner rear wall of the through slot (333); the first fixing block (331) is fixedly connected to the first arc-shaped clamping plate (31); and the second fixing block (332) is fixedly connected to the second arc-shaped clamping plate (32).

8. The jaw fracture reduction and fixation device according to claim 7, characterized in that: A movable hole (335) is provided in the middle of the front end of the second fixed block (332), a limiting sliding groove (336) is provided on the front side of the movable hole (335), and an adjusting rod (337) is movably connected inside the movable hole (335), a limiting plate (338) is fixedly connected to the front of the outer surface of the adjusting rod (337), and the limiting plate (338) is located inside the limiting sliding groove (336), a strip-shaped second connecting block (339) is fixedly connected to the rear end of the adjusting rod (337), and the second connecting block (339) is the same shape as the through groove (333) and is located inside the movable groove (334), and an adjusting button (3310) is fixedly connected to the front end of the adjusting rod (337), and the adjusting button (3310) is located at the front of the second fixed block (332).

9. The jaw fracture reduction and fixation device according to claim 1, characterized in that: The connecting member (4) comprises a second fixing plate (41), a third fixing plate (42) being fixedly connected to one side of the rear end of the second fixing plate (41), a connecting slide groove (43) being provided on the third fixing plate (42), two fourth connecting holes (44) being provided on the front end of the second fixing plate (41) away from the third fixing plate (42), bolts (45) being provided inside the two fourth connecting holes (44), a clamping plate (46) being fixedly connected to the rear of the two bolts (45), a plurality of scales (47) being fixedly connected to the front of the two clamping plates (46) being distributed in an equidistant circular array, nuts (48) being threadedly connected to the front sides of the two bolts (45), and the second fixing plate (41) being detachably connected to the first fixing plate (35) via the two bolts (45) and the two nuts (48).

10. The jaw fracture reduction and fixation device according to claim 1, characterized in that: The connecting slide block (51) is located inside the connecting slide groove (43) and is slidably connected to the connecting slide groove (43). The connecting slide block (51) is fixed in position with the third fixing plate (42) through two second fastening nails (56).

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