Maxillofacial retractor

Abstract

The invention relates to the technical field of maxillofacial retractors, in particular to a maxillofacial retractor which comprises a first traction structure, a supporting and limiting structure and a second traction structure, and one side of the upper end of the supporting and limiting structure is in limiting sliding connection with the first traction structure; the other side of the upper end of the supporting limiting structure is in limiting sliding connection with a second traction structure, and the first traction structure comprises a stabilizing support, a bearing rack, a limiting sliding block, an adaptive adjusting block, a limiting supporting guide rod, a supporting inclined frame, an adjusting drag hook, a supporting stabilizing frame, a combined guide rod frame, a supporting butt joint mounting frame and a fastening shaft frame. The upper end of the adaptive adjusting block is fixedly connected with a limiting sliding block, and the upper end of the limiting sliding block is fixedly connected with a bearing rack. Through the arrangement of the first traction structure, the supporting limiting structure and the second traction structure, the stability of the whole structure can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of maxillofacial retractors, in particular to a maxillofacial retractor. Background Art

[0002] Craniomaxillofacial cosmetic surgery mainly refers to various surgeries that change the face shape, such as high zygomatic bone reduction surgery, mandibular angle hypertrophy surgery (changing square face to oval face), horizontal chin osteotomy and advancement surgery (correction of small chin), etc. These surgeries are delicate and require sophisticated surgical instruments. The surgeon must have both the artistic aesthetics of a sculptor and first-class surgical skills.

[0003] As the closest prior art, Chinese Patent Publication No. CN210228214U relates to a maxillofacial retractor, including a bed clamp, a support rod, an arc-shaped bracket, a retractor fixing frame and a retractor, the arc-shaped bracket is connected to the bed clamp, the retractor is connected to the arc-shaped bracket, the retractor and the bed clamp are located on both sides of the arc-shaped bracket; the retractor is connected to the arc-shaped bracket through the retractor fixing frame; the arc-shaped bracket is connected to the bed clamp through the support rod. The beneficial effects of the utility model are: the maxillofacial retractor can retract the lip tissue according to the needs of the surgeon, expose the surgical area intact, increase the operability of maxillofacial surgery, reduce the labor intensity of assistants, and increase the surgical assistance effect of assistants. Craniomaxillofacial surgery often requires adjusting the patient's position to better expose the surgical area. By adjusting the arc-shaped bracket, the angle of the retractor relative to the patient's face can be adjusted so that the retractor can be adjusted according to the patient's position, such as turning the head left and right;

[0004] Chinese patent publication number CN214712639U provides a maxillofacial retractor for plastic surgery, including a fixed block, a No. 1 groove is provided in the middle of the upper surface of the fixed block, a No. 1 slide is provided on the left and right sides of the upper surface of the fixed block and is parallel to each other, a No. 2 groove is provided on the left and right upper ends of the fixed block and is parallel to the No. 2 slide, a sliding mechanism is movably installed on the left and right sides of the fixed block and is parallel to each other, an adjustment mechanism is installed on the upper ends of the two sliding mechanisms, and a movable rod is movably installed at the front ends of the two adjustment mechanisms. The No. 1 groove provided on the upper surface of the fixed block of the utility model is used to place the patient's head and fix it, so that it can ensure balance during maxillofacial retraction and not shake easily for better surgery, and then the sliding mechanism moves inside the No. 1 slide, the No. 2 slide, and the No. 2 groove, and is adjusted according to the size of the patient's face, and then the height of the adjustment mechanism is adjusted by the sliding mechanism.

[0005] At present, the maxillofacial retractor and the structure of the above-mentioned case are mostly used with a limited design when in use, which can adjust the position. However, in actual use, there is a phenomenon of structural instability, so the existing equipment needs to be adjusted. Summary of the invention

[0006] In view of the problems in the prior art, the present invention provides a maxillofacial retractor.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a maxillofacial retractor, comprising a first pulling structure, a supporting and limiting structure and a second pulling structure, wherein one side of the upper end of the supporting and limiting structure is slidingly connected to the first pulling structure, and the other side of the upper end of the supporting and limiting structure is slidingly connected to the second pulling structure;

[0008] The first pulling structure includes a stabilizing bracket, a bearing platform, a limit sliding block, an adapting and adjusting block, a limit supporting guide rod, a supporting oblique frame, an adjusting hook, a supporting stabilizing bracket, a combined guide rod frame, a supporting docking mounting frame and a fastening axis frame, the upper end of the adapting and adjusting block is fixedly connected to the limit sliding block, the upper end of the limit sliding block is fixedly connected to the bearing platform, the upper end of the bearing platform is fixedly connected to the stabilizing bracket, the side end of the stabilizing bracket is fixedly connected to the fastening axis frame, the side end of the fastening axis frame is fixedly connected to the combined guide rod frame, the center of the combined guide rod frame is fixedly connected to the supporting docking mounting frame, and the lower end of the supporting docking mounting frame is fixedly connected to the supporting oblique frame. The lower end of the supporting oblique frame is fixedly connected to the limiting sliding block through the limiting supporting guide rod. The structural setting of the first pulling structure and the second pulling structure can improve the connection stability performance. The first pulling structure and the second pulling structure have the same structure and are both used for limiting the position of the head during maxillofacial retraction. The limiting sliding block, the stabilizing bracket, the bearing platform, the limiting supporting guide rod, the supporting oblique frame, the supporting docking mounting frame, and the fastening shaft frame constitute a triangular structure, which can play a role of stable support and improve the connection stability performance. At the same time, the lower end of the combined guide rod frame can support the maxillofacial position through the supporting stabilizing frame and the adjusting hook, which is more convenient for maxillofacial retraction processing.

[0009] Specifically, the side end of the combined guide rod frame is fixedly connected to a supporting and stabilizing frame, and the side end of the supporting and stabilizing frame is limitedly connected to an adjusting hook.

[0010] Specifically, the support and limiting structure includes a screw power seat, a screw, a limiting frame plate, a table frame and a pad frame. The upper end of the pad frame is fixedly connected to the table frame, and the side end of the pad frame is fixedly connected to the limiting frame plate.

[0011] Specifically, a screw power seat is installed at the rear end limit of the limit frame plate, and a screw is driven and connected to the screw power seat. Through the structural setting of the support limit structure, the screw power seat can drive the screw to rotate in the limit frame plate, and the screw is threadedly connected to the adapter adjustment block. Through the rotation of the screw, the first pulling structure as a whole is driven to slide and adjust in the limit frame plate to change the position of the first pulling structure. At the same time, the setting of the table frame and the pad frame facilitates the support of the lower end position and improves the stable supporting performance of the bottom of the maxillofacial region.

[0012] Specifically, the screw rod is threadedly connected to the adapting and adjusting block, and the adapting and adjusting block is arranged in a position-limiting sliding connection in the position-limiting frame plate.

[0013] Specifically, the stabilizing bracket, the bearing platform, the limiting sliding block, the limiting supporting guide rod, the supporting inclined bracket, the supporting docking mounting bracket, and the fastening shaft bracket are designed in a triangular structure.

[0014] Specifically, the adjusting hook and the supporting and stabilizing frame can be relatively rotatably adjusted, and the adjusting hook is limited and fixed by a nut at the rear end of the supporting and stabilizing frame.

[0015] Specifically, a recorder is fixedly installed on the upper end of the table frame.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention can improve the connection stability through the structural setting of the first pulling structure and the second pulling structure. The first pulling structure and the second pulling structure have the same structure and are both used for limiting the position of the head during maxillofacial retraction. The limiting sliding block, the stabilizing bracket, the bearing frame, the limiting support guide rod, the supporting oblique frame, the supporting docking mounting frame, and the fastening shaft frame constitute a triangular structure, which can play a stabilizing support role and improve the connection stability. At the same time, the lower end of the combined guide rod frame can support the maxillofacial position through the supporting stabilizing frame and the adjusting hook, so as to better facilitate the maxillofacial retraction treatment work.

[0018] Second, the present invention supports the structural setting of the limiting structure, and the screw power seat can drive the screw to rotate in the limiting frame plate, and the screw is threadedly connected to the adapter adjustment block. Through the rotation of the screw, the first pulling structure as a whole is driven to slide and adjust in the limiting frame plate to change the position of the first pulling structure. At the same time, the setting of the table frame and the pad frame facilitates the support of the lower end position and improves the stable supporting performance of the bottom of the maxillofacial region. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from a side perspective;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from a rear perspective;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the first pulling structure in the present invention from a front perspective;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the support and limiting structure in the present invention from a front perspective;

[0025] Figure 6 It is a schematic diagram of the front perspective stereoscopic structure of the second embodiment of the main body of the present invention.

[0026] In the figure: 1-first pulling structure, 2-support limiting structure, 3-second pulling structure, 4-stable bracket, 5-bearing platform, 6-limiting sliding block, 7-adapting adjustment block, 8-limiting support guide rod, 9-support oblique frame, 10-adjusting hook, 11-support stable frame, 12-combined guide rod frame, 13-support docking installation frame, 14-fastening shaft frame, 15-thread rod power seat, 16-thread rod, 17-limiting frame plate, 18-table frame, 19-pad frame, 20-recorder. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] The present invention is further described below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] like Figure 1-5 As shown, a maxillofacial retractor of the present invention comprises a first pulling structure 1, a supporting and limiting structure 2 and a second pulling structure 3, wherein one side of the upper end of the supporting and limiting structure 2 is slidingly connected with the first pulling structure 1, and the other side of the upper end of the supporting and limiting structure 2 is slidingly connected with the second pulling structure 3;

[0032] The first pulling structure 1 includes a stabilizing bracket 4, a bearing platform 5, a limiting sliding block 6, an adapting and adjusting block 7, a limiting supporting guide rod 8, a supporting oblique frame 9, an adjusting hook 10, a supporting and stabilizing bracket 11, a combined guide rod frame 12, a supporting docking mounting frame 13 and a fastening axis frame 14. The combined guide rod frame 12 and the supporting docking mounting frame 13 are supported, the supporting docking mounting frame 13 is connected to the fastening axis frame 14, the fastening axis frame 14 is limitedly arranged with the stabilizing bracket 4, and the lower end of the supporting docking mounting frame 13 is limitedly connected to the limiting supporting guide rod 8 through the supporting oblique frame 9, and the bearing platform 5 carries the lower end of the stabilizing bracket 4, thereby improving the stability of the overall structure and facilitating the maxillofacial distraction treatment work. The upper end of the adapting and adjusting block 7 is fixedly connected to the limiting sliding block 6, the upper end of the limiting sliding block 6 is fixedly connected to the bearing platform 5, the upper end of the bearing platform 5 is fixedly connected to the stabilizing bracket 4, and the side end of the stabilizing bracket 4 is fixedly connected to the fastening axis frame 14. The side end of the fastening axis frame 14 is fixedly connected with a combined guide rod frame 12, and the center of the combined guide rod frame 12 is fixedly connected with a supporting docking mounting frame 13, and the lower end of the supporting docking mounting frame 13 is fixedly connected with a supporting oblique frame 9, and the lower end of the supporting oblique frame 9 is fixedly connected to the limiting sliding block 6 through the limiting support guide rod 8. The structural setting of the first pulling structure 1 and the second pulling structure 3 can improve the connection stability performance. The first pulling structure 1 and the second pulling structure 3 have the same structure and are both used for limiting the position of the head during maxillofacial retraction. The limiting sliding block 6, the stabilizing bracket 4, the bearing platform 5, the limiting support guide rod 8, the supporting oblique frame 9, the supporting docking mounting frame 13, and the fastening axis frame 14 constitute a triangular structure, which can play a stabilizing supporting role and improve the connection stability performance. At the same time, the lower end of the combined guide rod frame 12 can support the maxillofacial position through the supporting stabilizing frame 11 and the adjusting hook 10, so as to better facilitate the maxillofacial retraction treatment work.

[0033] The side end of the combined guide rod frame 12 is fixedly connected to the supporting and stabilizing frame 11 , and the side end of the supporting and stabilizing frame 11 is limitedly connected to the adjusting hook 10 .

[0034] The support and limiting structure 2 includes a screw power seat 15, a screw 16, a limiting frame plate 17, a table frame 18 and a pad frame 19. The screw power seat 15 is driven to work, and the screw power seat 15 drives the screw 16 to rotate, and the screw 16 is threadedly connected to the adapting adjustment block 7, so that the adapting adjustment block 7 can slide and adjust on the limiting frame plate 17 to change the position of the first pulling structure 1. The upper end of the pad frame 19 is fixedly connected to the table frame 18, and the side end of the pad frame 19 is fixedly connected to The limiting frame plate 17, through the structural setting of the supporting limiting structure 2, the screw power seat 15 can drive the screw 16 to rotate in the limiting frame plate 17, and the screw 16 is threadedly connected with the adapter adjustment block 7. Through the rotation of the screw 16, the first pulling structure 1 is driven to slide and adjust as a whole in the limiting frame plate 17 to change the position of the first pulling structure 1. At the same time, the setting of the table frame 18 and the pad frame 19 facilitates the support of the lower end position and improves the stable supporting performance of the bottom of the maxillofacial region.

[0035] A screw power seat 15 is installed at the rear end of the limiting frame plate 17 , and a screw 16 is drivingly connected to the screw power seat 15 .

[0036] The screw rod 16 is threadedly connected to the adapting and adjusting block 7 , and the adapting and adjusting block 7 is disposed in a position-limiting sliding connection in the position-limiting frame plate 17 .

[0037] The stabilizing bracket 4, the bearing platform 5, the limiting sliding block 6, the limiting supporting guide rod 8, the supporting inclined bracket 9, the supporting docking mounting bracket 13, and the fastening shaft bracket 14 are designed in a triangular structure, which can play a stabilizing role.

[0038] The adjusting hook 10 and the supporting and stabilizing frame 11 can be adjusted in relative rotation. At the same time, the adjusting hook 10 is limited and fixed by the nut at the rear end of the supporting and stabilizing frame 11. The adjusting hook 10 performs maxillofacial traction processing. At this time, the adjusting hook 10 can be rotated through the center of the supporting and stabilizing frame 11. When it is adjusted to a suitable position, it is tightened by the nut to facilitate the limiting operation.

[0039] The working principle of embodiment 1 is as follows: when in use, the user combines and installs the first pulling structure 1, the supporting and limiting structure 2, and the second pulling structure 3, and the pad frame 19 in the supporting and limiting structure 2 performs the bearing work at the bottom. The user first drives the screw power seat 15 to work, and the screw power seat 15 drives the screw 16 to rotate, and the screw 16 is threadedly connected with the adapting and adjusting block 7, so that the adapting and adjusting block 7 can slide and adjust on the limiting frame plate 17 to change the position of the first pulling structure 1. When it reaches the appropriate position, the user adjusts the retractor 10 to perform maxillofacial traction processing. At this time, the adjusting retractor 10 can be rotated through the center of the supporting and stabilizing frame 11. When it is adjusted to the appropriate position, it is tightened by a nut to facilitate the limiting operation. At this time, the combined guide rod frame 12 and the supporting and docking mounting frame 13 are supported, and the supporting and docking mounting frame 13 is connected to the fastening shaft frame 14. The fastening shaft frame 14 The limiting setting is arranged with the stabilizing bracket 4, and the lower end of the supporting docking mounting frame 13 is limitedly connected with the limiting supporting guide rod 8 through the supporting inclined frame 9, and the bearing platform 5 carries the lower end of the stabilizing bracket 4, thereby improving the stability of the overall structure and facilitating the maxillofacial retraction treatment work. The structural setting of the first traction structure 1 and the second traction structure 3 can improve the connection stability performance. The first traction structure 1 and the second traction structure 3 have the same structure and are both used for the limiting treatment of the head position during maxillofacial retraction. The limiting sliding block 6, the stabilizing bracket 4, the bearing platform 5, the limiting supporting guide rod 8, the supporting inclined frame 9, the supporting docking mounting frame 13, and the fastening shaft frame 14 constitute a triangular structure, which can play a role of stable support and improve the connection stability performance. At the same time, the lower end of the combined guide rod frame 12 can support the maxillofacial position through the supporting stabilizing frame 11 and the adjusting hook 10, which is more convenient for the maxillofacial retraction treatment work and completes the work.

[0040] Example 2

[0041] On the basis of Example 1, Figure 6 As shown, a recorder 20 is fixedly mounted on the upper end of the table frame 18 .

[0042] When implementing this embodiment, the user installs the recorder 20 on the upper end of the table frame 18, and can perform recording work through the recorder 20, thereby facilitating subsequent teaching demonstrations.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maxillofacial retractor, characterized in that: It comprises a first pulling structure (1), a supporting and limiting structure (2) and a second pulling structure (3), wherein one side of the upper end of the supporting and limiting structure (2) is connected to the first pulling structure (1) in a limiting sliding manner, and the other side of the upper end of the supporting and limiting structure (2) is connected to the second pulling structure (3) in a limiting sliding manner; The first pulling structure (1) comprises a stabilizing bracket (4), a bearing platform (5), a limiting sliding block (6), an adapting and adjusting block (7), a limiting supporting guide rod (8), a supporting inclined frame (9), an adjusting hook (10), a supporting stabilizing frame (11), a combined guide rod frame (12), a supporting docking mounting frame (13) and a fastening shaft frame (14), wherein the upper end of the adapting and adjusting block (7) is fixedly connected to the limiting sliding block (6), the upper end of the limiting sliding block (6) is fixedly connected to the bearing platform (5), and the bearing The upper end of the stand (5) is fixedly connected to a stabilizing bracket (4), the side end of the stabilizing bracket (4) is fixedly connected to a fastening shaft bracket (14), the side end of the fastening shaft bracket (14) is fixedly connected to a combined guide rod bracket (12), the center of the combined guide rod bracket (12) is fixedly connected to a supporting docking mounting bracket (13), the lower end of the supporting docking mounting bracket (13) is fixedly connected to a supporting oblique bracket (9), and the lower end of the supporting oblique bracket (9) is fixedly connected to a limiting sliding block (6) via a limiting supporting guide rod (8).

2. A maxillofacial retractor according to claim 1, characterized in that: The side end of the combined guide rod frame (12) is fixedly connected to a supporting and stabilizing frame (11), and the side end of the supporting and stabilizing frame (11) is limitedly connected to an adjusting hook (10).

3. A maxillofacial retractor according to claim 2, characterized in that: The support and limiting structure (2) comprises a screw power seat (15), a screw (16), a limiting frame plate (17), a table frame (18) and a pad frame (19); the upper end of the pad frame (19) is fixedly connected to the table frame (18), and the side end of the pad frame (19) is fixedly connected to the limiting frame plate (17).

4. A maxillofacial retractor according to claim 3, characterized in that: A screw power seat (15) is installed at the rear end of the limit frame plate (17) to limit the position, and a screw (16) is drivingly connected to the screw power seat (15).

5. A maxillofacial retractor according to claim 4, characterized in that: The screw rod (16) is threadedly connected to the adapting and adjusting block (7), and the adapting and adjusting block (7) is arranged in a position-limiting sliding connection inside the position-limiting frame plate (17).

6. The maxillofacial retractor according to claim 5, characterized in that: The stabilizing bracket (4), the bearing platform (5), the limiting sliding block (6), the limiting supporting guide rod (8), the supporting inclined bracket (9), the supporting docking mounting bracket (13), and the fastening shaft bracket (14) are designed in a triangular structure.

7. The maxillofacial retractor according to claim 6, characterized in that: The adjusting hook (10) and the supporting and stabilizing frame (11) can be relatively rotatably adjusted, and the adjusting hook (10) is simultaneously limited and fixed by a nut at the rear end of the supporting and stabilizing frame (11).

8. The maxillofacial retractor according to claim 7, characterized in that: A recorder (20) is fixedly mounted on the upper end of the platform frame (18).

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