Maxillofacial retractor

Abstract

The utility model discloses a maxillofacial retractor, and particularly relates to the technical field of orthopaedic surgery equipment, the maxillofacial retractor comprises a bed board and an adjusting ring arranged in the middle of the top surface of the bed board, the inside of the adjusting ring is rotatably connected with a gear ring, one side of the inside of the adjusting ring is rotatably connected with a driving gear, and the driving gear is meshed with the gear ring; a rotating block is rotationally connected to the side, located on the driving gear, of the outer top face of the adjusting ring, and the rotating block is fixedly connected with the driving gear. According to the maxillofacial retractor, in actual work, a second threaded rod is rotated so that the moving plate can drive the drag hooks to move, when the two drag hooks move in the opposite directions, maxillofacial tissue can be retracted, a rotating block is rotated so that a driving gear can be driven to rotate, a gear ring can be rotated, and the maxillofacial tissue can be retracted. And the rotating gear ring can drive the two connecting blocks to rotate, so that the angles of the two drag hooks can be adjusted, and the maxillofacial tissue can be conveniently retracted from different angles.

Description

TECHNICAL FIELD

[0001] The utility model relates to orthopedic equipment technical field, especially relate to a jaw face retractor. BACKGROUND

[0002] The retractor is used to retract tissues, expose the operation range, facilitate the exploration and operation, has various different shapes and sizes, and can select the appropriate retractor according to the operation needs, in the jaw face surgery, the jaw face tissues need to be retracted by the retractor, so that the operation can be carried out.

[0003] Through the search, for example, the utility model discloses a jaw surgery retractor, including bed board and the support leg that four corner places at bed board bottom are all fixedly connected, the top of bed board both sides is provided with the retractor, when using the retractor to retract the jaw face tissues, often need to retract from different angles, so that medical staff can more comprehensively observe the jaw face tissues, and the utility model is inconvenient for retracting the jaw face tissues from different angles, therefore, in order to solve the above defects, the inventor proposes a kind of jaw retractor. UTILITY MODEL CONTENTS

[0004] The utility model is mainly aimed at providing a kind of jaw retractor, which can effectively solve the problem that the existing jaw surgery retractor is not convenient for retracting the jaw face tissues from different angles.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] A jaw retractor, comprising a bed plate and an adjusting ring arranged on the top surface of the bed plate, wherein the inside of the adjusting ring is rotatably connected with a gear ring, one side of the inside of the adjusting ring is rotatably connected with a driving gear, the driving gear is engaged with the gear ring, the outer top surface of the adjusting ring is rotatably connected with a rotating block on one side of the driving gear, the rotating block is fixedly connected with the driving gear, a plurality of limiting holes are formed on the side surface of the rotating block, a support plate is fixedly installed on one side of the outer top surface of the adjusting ring, the support plate is slidably connected with a movable rod on one side, a first spring is fixedly installed on the outer surface of the support plate close to the rotating block, the movable rod passes through the inside of the first spring, a fixed plate is fixedly installed on one end of the movable rod close to the rotating block, the fixed plate is fixedly connected with the first spring, a limiting rod is fixedly installed on one side of the fixed plate close to the rotating block, and a retraction assembly is arranged on both sides of the inner wall of the gear ring for retracting the jaw.

[0007] Preferably, the retractor assembly comprises a connecting block arranged on the inner wall of the tooth ring, two telescopic rods are fixedly arranged on one side of the connecting block, a moving plate is fixedly arranged at the ends of the two telescopic rods away from the connecting block, a first threaded rod is rotatably connected to one side of the connecting block, the moving plate is threadedly connected with the first threaded rod, and a drag hook is fixedly arranged on the bottom surface of the moving plate.

[0008] Preferably, the outer surface of the bed plate is provided with lifting sleeves on the left and right sides, a second threaded rod is rotatably connected in the lifting sleeve, a horizontal conical gear is fixedly arranged on the bottom of the outer surface of the second threaded rod, a rotating shaft is rotatably connected on one side of the outer surface of the lifting sleeve, a vertical conical gear is fixedly arranged at the end of the rotating shaft extending into the lifting sleeve, the vertical conical gear is engaged with the horizontal conical gear, a lifting frame is slidably connected in the lifting sleeve, the lifting frame is threadedly connected with the second threaded rod, a lifting block is fixedly arranged at the end of the lifting frame extending out of the lifting sleeve, and the lifting block is fixedly connected with the adjusting ring.

[0009] Preferably, the outer surface of the bed plate is provided with sliding rails fixedly arranged on the left and right sides, sliding blocks are slidably connected on the outer surfaces of the two sliding rails, the sliding blocks are fixedly connected with the lifting sleeves, a telescopic sleeve is fixedly arranged on one side of the outer surface of the sliding block, a second spring is fixedly arranged in the telescopic sleeve, a pull rod is slidably connected on one side of the outer surface of the telescopic sleeve, the pull rod extends into the second spring, a connecting plate is fixedly arranged at the end of the pull rod extending into the telescopic sleeve, the connecting plate is fixedly connected with the second spring, an adjusting rod is fixedly arranged on the side of the connecting plate away from the second spring, and a plurality of adjusting holes are formed in one side of the outer surface of the sliding rail.

[0010] Preferably, a part of the pull rod is arranged in the telescopic sleeve, and the other part of the pull rod is arranged outside the telescopic sleeve, a handle is fixedly arranged at the end of the pull rod arranged outside the telescopic sleeve, and the size of the adjusting rod is the same as that of the adjusting hole.

[0011] Preferably, the size of the limiting rod is the same as that of the limiting hole.

[0012] Compared with the prior art, the retractor assembly has the following beneficial effects:

[0013] The jaw retractor comprises a connecting block, two telescopic rods, a moving plate, a first threaded rod, a drag hook, a second threaded rod, a lifting sleeve, a horizontal conical gear, a rotating shaft, a vertical conical gear, a lifting frame, a lifting block, an adjusting ring, a sliding rail, a sliding block, a telescopic sleeve, a second spring, a pull rod, a connecting plate, an adjusting rod, and an adjusting hole. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is the adjusting ring sectional structure schematic view of the utility model;

[0016] Figure 3 It is the retractor assembly structure schematic view of the utility model;

[0017] Figure 4 It is the lifting sleeve sectional structure schematic view of the utility model;

[0018] Figure 5 It is the bed plate sectional structure schematic view of the utility model.

[0019] In the figure: 1, bed plate;2, slide rail;3, sliding block;4, lifting sleeve;5, adjusting ring;501, gear ring;502, driving gear;503, rotating block;504, first spring;505, movable rod;506, fixed plate;507, limiting rod;508, limiting hole;509, support plate;510, connecting block;5101, telescopic rod;5102, first threaded rod;5103, moving plate;5104, pull hook;401, second threaded rod;402, transverse bevel gear;403, vertical bevel gear;404, rotating shaft;405, lifting frame;406, lifting block;201, adjusting hole;301, telescopic sleeve;302, second spring;303, connecting plate;304, adjusting rod;305, pull rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creation features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] The utility model discloses a maxillofacial retractor, as shown in the figure, including bed plate 1 and the adjusting ring 5 of being located in the middle part of bed plate 1 top surface, the inside rotation of adjusting ring 5 is connected with gear ring 501, and gear ring 501 can rotate in the inside of adjusting ring 5. Figures 1-5

[0022] The inside one side of adjusting ring 5 is rotatably connected with driving gear 502, and driving gear 502 is engaged with gear ring 501, when driving gear 502 rotates, gear ring 501 will be rotated.

[0023] The outer top surface of adjusting ring 5 is rotatably connected with rotating block 503 on one side of driving gear 502, and rotating block 503 is fixedly connected with driving gear 502, and rotating block 503 rotates and will drive driving gear 502 to rotate.

[0024] ​The side of the rotating block 503 is provided with a plurality of limiting holes 508, the outer top surface of the adjusting ring 5 is fixedly installed on one side of the rotating block 503, one side of the supporting plate 509 is slidably connected with the movable rod 505, the outer surface of the supporting plate 509 is fixedly installed with the first spring 504 close to one side of the rotating block 503, the movable rod 505 penetrates through the inside of the first spring 504, one end of the movable rod 505 close to the rotating block 503 is fixedly installed with the fixed plate 506, the fixed plate 506 is fixedly connected with the first spring 504, the side of the fixed plate 506 close to the rotating block 503 is fixedly installed with the limiting rod 507, pulling the movable rod 505 makes the fixed plate 506 away from the rotating block 503, so that the fixed plate 506 extrudes the first spring 504, and the first spring 504 is extruded to push the fixed plate 506 to reset, so that the limiting rod 507 is inserted into the limiting hole 508 to limit the rotating block 503, and the inner wall of the tooth ring 501 is provided with a retractor assembly on both sides, which is used for retracting the maxillofacial.

[0025] The size of the limiting rod 507 is the same as that of the limiting hole 508.

[0026] The retractor assembly comprises a connecting block 510 provided on the inner wall of the tooth ring 501, and when the tooth ring 501 rotates, the two connecting blocks 510 are driven to rotate to adjust the angle of the two connecting blocks 510.

[0027] The side of the connecting block 510 is fixedly installed with two telescopic rods 5101, and the ends of the two telescopic rods 5101 away from the connecting block 510 are fixedly installed with a moving plate 5103, the side of the connecting block 510 away from the telescopic rod 5101 is rotatably connected with a first threaded rod 5102, and the moving plate 5103 is threadedly connected with the first threaded rod 5102, the bottom surface of the moving plate 5103 is fixedly installed with a pull hook 5104, rotating the first threaded rod 5102 moves the moving plate 5103, and the two telescopic rods 5101 are telescoped with the movement of the moving plate 5103, when the moving plate 5103 moves, the pull hook 5104 is moved, and when the two pull hooks 5104 are away from each other, the maxillofacial tissue can be retracted.

[0028] The tooth ring 501 drives the two connecting blocks 510 to rotate, which can adjust the position of the two pull hooks 5104, so as to facilitate the retraction of the maxillofacial tissue from different angles.

[0029] The outer surface of the bed plate 1 is provided with lifting sleeves 4 on both sides, the second threaded rod 401 is rotatably connected in the lifting sleeve 4, the horizontal conical gear 402 is fixedly installed on the outer surface of the second threaded rod 401, the rotating shaft 404 is rotatably connected on one side of the outer surface of the lifting sleeve 4, the vertical conical gear 403 is fixedly installed on the end of the rotating shaft 404 extending into the lifting sleeve 4, the vertical conical gear 403 is engaged with the horizontal conical gear 402, and the user rotates the rotating shaft 404 to drive the vertical conical gear 403 to rotate, so as to drive the horizontal conical gear 402 and the second threaded rod 401 to rotate.

[0030] The lifting frame 405 is slidably connected in the lifting sleeve 4, and the lifting frame 405 is threadedly connected with the second threaded rod 401, so that the lifting frame 405 is lifted when the second threaded rod 401 rotates.

[0031] The lifting block 406 is fixedly installed on the end of the lifting frame 405 extending out of the lifting sleeve 4, and the lifting block 406 is fixedly connected with the adjusting ring 5, so that the lifting block 406 and the adjusting ring 5 are lifted when the lifting frame 405 is lifted, to adjust the height of the adjusting ring 5.

[0032] The sliding rails 2 are fixedly installed on the outer surface of the bed plate 1 on both sides, and the sliding blocks 3 are slidably connected on the outer surfaces of the two sliding rails 2, the sliding blocks 3 can move along the sliding rails 2, the sliding blocks 3 are fixedly connected with the lifting sleeves 4, and the lifting sleeves 4 are moved when the sliding blocks 3 move, so that the adjusting ring 5 can move longitudinally.

[0033] The telescopic sleeve 301 is fixedly installed on one side of the outer surface of the sliding block 3, the second spring 302 is fixedly installed in the telescopic sleeve 301, the pull rod 305 is slidably connected on one side of the outer surface of the telescopic sleeve 301, the pull rod 305 extends into the second spring 302, the connecting plate 303 is fixedly installed on the end of the pull rod 305 extending into the telescopic sleeve 301, and the connecting plate 303 is fixedly connected with the second spring 302, and the pull rod 305 is pulled out of the telescopic sleeve 301, so that the connecting plate 303 presses the second spring 302.

[0034] The adjusting rod 304 is fixedly installed on the side of the connecting plate 303 away from the second spring 302, and the adjusting holes 201 are formed in one side of the outer surface of the sliding rail 2, when the connecting plate 303 presses the second spring 302, the adjusting rod 304 is retracted into the telescopic sleeve 301, and when the pull rod 305 is released, the second spring 302 pressed is used to reset the connecting plate 303, so that the adjusting rod 304 enters the adjusting hole 201 again, to fix the moved sliding block 3.

[0035] The pull rod 305 is partially located inside the telescopic sleeve 301, and another part of the pull rod 305 is located outside the telescopic sleeve 301, and a handle is fixedly installed at one end of the pull rod 305 located outside the telescopic sleeve 301.

[0036] The working principle of the utility model is as follows: the patient lies on the bed plate 1, pulls the pull rod 305 towards the outside of the telescopic sleeve 301, drives the connecting plate 303 to press the second spring 302, when the connecting plate 303 presses the second spring 302, the adjusting rod 304 is retracted into the telescopic sleeve 301, then the two sliding blocks 3 are moved to align the two pull hooks 5104 with the maxillofacial tissue of the patient, then the pull rod 305 is loosened, the second spring 302 which is pressed pushes the connecting plate 303 to reset, so that the adjusting rod 304 enters the adjusting hole 201 again to fix the moved sliding block 3, the user rotates the rotating shaft 404 to drive the vertical conical gear 403 to rotate, which can drive the horizontal conical gear 402 and the second threaded rod 401 to rotate, when the second threaded rod 401 rotates, the lifting frame 405 is lifted, which drives the lifting block 406 and the adjusting ring 5 to lift, so as to adjust the height of the adjusting ring 5, so that the two pull hooks 5104 are inserted into the maxillofacial tissue of the patient, then the two first threaded rods 5102 are rotated to make the two pull hooks 5104 move away from each other, so that the maxillofacial tissue of the patient is retracted, and the rotating block 503 can be rotated to drive the driving gear 502 to rotate, so that the gear ring 501 is rotated, and the rotating gear ring 501 can drive the two connecting blocks 510 to rotate, so that the angle of the two pull hooks 5104 can be adjusted, which is convenient for retracting the maxillofacial tissue from different angles.

[0037] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A maxillofacial retractor comprising a bed plate (1) and an adjusting ring (5) arranged in the middle of the top surface of the bed plate (1), characterized in that: The inside of the adjusting ring (5) is rotationally connected with a tooth ring (501), one side of the inside of the adjusting ring (5) is rotationally connected with a driving gear (502), and the driving gear (502) is meshed with the tooth ring (501), the outer top surface of the adjusting ring (5) is rotationally connected with a rotating block (503) on one side of the driving gear (502), and the rotating block (503) is fixedly connected with the driving gear (502), a plurality of limiting holes (508) are formed in the side surface of the rotating block (503), a supporting plate (509) is fixedly installed on one side of the outer top surface of the adjusting ring (5) located at the rotating block (503), a movable rod (505) is slidably connected to one side of the supporting plate (509), a first spring (504) is fixedly installed on one side of the outer surface of the supporting plate (509) close to the rotating block (503), and the movable rod (505) penetrates through the inside of the first spring (504), a fixed plate (506) is fixedly installed on one end of the movable rod (505) close to the rotating block (503), and the fixed plate (506) is fixedly connected with the first spring (504), a limiting rod (507) is fixedly installed on one side of the fixed plate (506) close to the rotating block (503), and the inner walls of the tooth ring (501) are provided with traction assemblies on both sides for traction of the maxillofacial region.

2. The maxillofacial retractor of claim 1, wherein: The traction assembly comprises a connecting block (510) provided on the inner wall of the tooth ring (501), two telescopic rods (5101) are fixedly installed on one side of the connecting block (510), a moving plate (5103) is fixedly installed on the ends of the two telescopic rods (5101) away from the connecting block (510), a first threaded rod (5102) is rotationally connected to one side of the connecting block (510) located at the telescopic rod (5101), and the moving plate (5103) is threadedly connected with the first threaded rod (5102), and a drag hook (5104) is fixedly installed on the bottom surface of the moving plate (5103).

3. The maxillofacial retractor of claim 1, wherein: The outer surfaces of the bed plates (1) are provided with lifting sleeves (4) on both left and right sides, second threaded rods (401) are rotationally connected in the lifting sleeves (4), horizontal conical gears (402) are fixedly installed on the outer surfaces of the second threaded rods (401) at the bottom, rotating shafts (404) are rotationally connected to one side of the outer surfaces of the lifting sleeves (4), vertical conical gears (403) are fixedly installed on one ends of the rotating shafts (404) extending into the lifting sleeves (4), the vertical conical gears (403) are meshed with the horizontal conical gears (402), lifting frames (405) are slidably connected in the lifting sleeves (4), the lifting frames (405) are threadedly connected with the second threaded rods (401), lifting blocks (406) are fixedly installed on one ends of the lifting frames (405) extending out of the lifting sleeves (4), and the lifting blocks (406) are fixedly connected with the adjusting rings (5).

4. The maxillofacial retractor of claim 1, wherein: The outer surface of the bed board (1) is fixedly provided with slide rails (2) on both sides, and the outer surfaces of the two slide rails (2) are slidably connected with slide blocks (3), the slide blocks (3) are fixedly connected with lifting sleeves (4), one side of the outer surface of the slide block (3) is fixedly provided with an extension sleeve (301), a second spring (302) is fixedly arranged in the extension sleeve (301), one side of the outer surface of the extension sleeve (301) is slidably connected with a pull rod (305), the pull rod (305) extends into the extension sleeve (301) and passes through the second spring (302), one end of the pull rod (305) extending into the extension sleeve (301) is fixedly provided with a connecting plate (303), the connecting plate (303) is fixedly connected with the second spring (302), and a regulating rod (304) is fixedly arranged on the side, away from the second spring (302), of the connecting plate (303), a plurality of adjusting holes (201) are formed in one side of the outer surface of the slide rail (2).

5. A maxillofacial retractor according to claim 4, wherein: Part of the pull rod (305) is located in the extension sleeve (301), and the other part of the pull rod (305) is located outside the extension sleeve (301), a handle is fixedly arranged on one end of the pull rod (305) located outside the extension sleeve (301), and the size of the regulating rod (304) is the same as that of the adjusting hole (201).

6. The maxillofacial retractor of claim 1, wherein: The size of the limiting rod (507) is the same as that of the limiting hole (508).

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