Retractor special for oral surgery

Abstract

The utility model discloses a retractor special for oral surgery, which comprises a positioning support, and positioning blocks are fixedly mounted at the left end and the right end of the positioning support. An adjusting mechanism is arranged at the outer end of the positioning support and comprises a threaded sleeve, and the threaded sleeve is rotationally arranged at the inner center positions of the positioning blocks on the left side and the right side through bearings. Wherein a traction mechanism is arranged at the outer end of the positioning support, the traction mechanism comprises an upper jaw traction frame and a lower jaw traction frame, and the upper jaw traction frame and the lower jaw traction frame are distributed in a mode that two upper jaw traction frames and two lower jaw traction frames form a group. According to the retractor special for the oral surgery, the upper jaw retracting frame and the lower jaw retracting frame which are adjustable in distance are used for retracting the upper jaw bone and the lower jaw bone in the oral cavity of a patient, the comfort of the patient is improved while operation of a doctor is not affected, the lips are supported through the symmetrically-distributed lip retracting frames, and then surgery can be conveniently conducted on the tooth root tips of the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a special retractor for oral surgery. Background Art

[0002] A retractor is a dental device used to keep the teeth, tongue, lips and other tissues in the mouth from colliding or interfering during treatment by the dentist. It is also a device that helps open the mouth during oral care. After the mouth is expanded, it is easier for medical staff to care for the inside of the mouth.

[0003] Patent application CN115281755A discloses a retractor specifically designed for oral surgery. The retractor features a rubber pad to protect the patient's upper jaw, preventing scratches from the opening arc. A liquid reservoir is used to store and absorb saliva accumulated in the mouth, which is then absorbed by a sponge to prevent discomfort. A light is provided to illuminate the patient's mouth, making it easier for medical staff to perform surgery.

[0004] However, the above-mentioned retractor for oral surgery still has the following problems during actual use: although the adjustment plate drives the connecting plate and the expansion arc block to retract the oral jaw, the retractor bracket is supported and adjusted by the support column and the screw rod, which affects the doctor's manual operation during oral surgery. At the same time, during local maxillary root root surgery and mandibular root root surgery, the retractor cannot be used to retract the upper and lower lip skin, affecting the operation of the surgery.

[0005] Therefore, we propose a special retractor for oral surgery to solve the above problems. Summary of the Invention

[0006] The purpose of the utility model is to provide a special retractor for oral surgery, in order to solve the problem that the existing retractor drives the connecting plate and the expansion arc block to retract the oral jaw by an adjustment plate, but the retractor bracket is supported and adjusted by a support column and a screw rod, which affects the doctor's manual operation during oral surgery. At the same time, during local maxillary root root surgery and mandibular root root surgery, the upper and lower lip skins cannot be retracted by the retractor, which affects the surgical operation.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a retractor for oral surgery, comprising a positioning bracket, wherein both left and right ends of the positioning bracket are fixedly mounted with positioning blocks, and the positioning blocks at the left and right ends are fixedly mounted to the outer ends of the positioning bracket; and further comprising:

[0008] The outer end of the positioning bracket is provided with an adjustment mechanism, and the adjustment mechanism includes a threaded sleeve, and the threaded sleeve is rotatably arranged at the inner center position of the left and right positioning blocks through a bearing;

[0009] The outer end of the positioning support is provided with a retractor mechanism, and the retractor mechanism comprises a maxillary retractor and a mandibular retractor, and the maxillary retractor and the mandibular retractor are distributed in two groups.

[0010] Preferably, the adjusting mechanism comprises a driving shaft, an adjusting turntable is fixedly arranged at the central position of the driving shaft, the driving shaft is rotatably arranged at the inner central position of the positioning support through a bearing, and the outer ends of the driving shaft are arranged in the interiors of the left and right positioning blocks.

[0011] Preferably, the outer ends of the driving shaft of the adjusting mechanism are connected to the outer walls of the internal threaded sleeves of the left and right positioning blocks through a bevel gear set, the adjusting mechanism comprises lifting threaded rods, and the lifting threaded rods are symmetrically and threadedly connected to the interiors of the left and right threaded sleeves.

[0012] Preferably, the retractor mechanism comprises extension supports, the extension supports are fixedly installed at the front ends of the maxillary retractors and the mandibular retractors on the upper side and the lower side and on the left side and the right side, the front ends of the symmetrically arranged extension supports are fixedly connected to the outer ends of the lifting threaded rods on the upper side and the lower side, and the maxillary retractors and the mandibular retractors change the use height through the threaded connection of the lifting threaded rods and the threaded sleeves.

[0013] Preferably, the retractor mechanism comprises guide sliding rods, the bottom ends of the guide sliding rods are fixedly installed on the top surfaces of the left and right extension supports on the upper side, the top ends of the symmetrically arranged guide sliding rods are slidingly and penetratingly arranged at the bottom ends of the external supports, and the bottom ends of the external supports and the guide sliding rods are connected to each other through return springs.

[0014] Preferably, the retractor mechanism comprises lip retractors, the lip retractors are fixedly installed at the top ends of the left and right external supports, the symmetrically arranged lip retractors are distributed and arranged in a "U" shape structure, and the left and right lip retractors are rotated to retract the upper lip and the lower lip, so as to facilitate the local root tip surgery of the oral cavity.

[0015] Compared with the prior art, the retractor for oral surgery has the advantages that the maxillary retractor and the mandibular retractor with adjustable distance are used to retract the maxilla and the mandible in the oral cavity of the patient, the comfort of the patient is improved without affecting the operation of the doctor, the lips are lifted through the symmetrically distributed lip retractors, and the teeth root tip of the patient is convenient for surgery, and the specific contents are as follows.

[0016] 1. The symmetrically distributed maxillary and mandibular distraction frames are respectively placed on the upper and lower jaws in the oral cavity, so that the maxillary and mandibular distraction frames are positioned by the patient's upper and lower jaws. The adjustment dial in the middle of the positioning frame is rotated to drive the drive shaft, which is then rotated inside the positioning block by a threaded sleeve that is engaged through the bevel gear set 8.

[0017] The threaded sleeve is threadedly connected to the lifting threaded rod and the extension bracket and the maxillary distraction frame and the mandibular distraction frame at the outer end thereof to move, thereby changing the degree of opening and closing of the maxillary distraction frame and the mandibular distraction frame in the patient's mouth without affecting the doctor's surgical operation;

[0018] 2. Rotate the lip retractor to the lips that need to be retracted, then adjust the upper and lower maxillary retractors and mandibular retractors to their minimum positions, and place the lips on top of the left and right lip retractors so that the lips can be retracted by the guide slide connected to the lip retractor and the external bracket in conjunction with the return spring, thereby facilitating surgery on the patient's tooth root apex. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the adjustment turntable of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the lip retractor of the present invention;

[0022] Figure 4 This is a schematic diagram of the drive shaft installation structure of the utility model;

[0023] Figure 5 For this utility model Figure 4 A in the middle is an enlarged structural diagram;

[0024] Figure 6 This is a schematic diagram of the installation structure of the lip retraction frame of the present invention.

[0025] In the figure: 1. Positioning bracket; 2. Positioning block; 3. Threaded sleeve; 4. Maxillary distraction frame; 5. Mandibular distraction frame; 6. Driving shaft; 7. Adjusting dial; 8. Bevel gear set; 9. Lifting threaded rod; 10. Extension bracket; 11. Guide slide bar; 12. External bracket; 13. Return spring; 14. Lip distraction frame. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-6 The present application provides the following technical solutions:

[0028] Embodiment 1: In order to solve the problems existing in the actual use of the existing oral retractor, therefore, the present embodiment solves the problems through the following technical solutions, a special retractor for oral surgery, comprising a positioning support 1, and the left and right ends of the positioning support 1 are fixedly installed with positioning blocks 2, and the positioning blocks 2 at the left and right ends are fixedly installed on the outer ends of the positioning support 1; the outer end of the positioning support 1 is provided with an adjusting mechanism, and the adjusting mechanism comprises a threaded sleeve 3, and the threaded sleeve 3 is rotatably arranged at the inner central position of the positioning blocks 2 on the left and right sides through a bearing; the adjusting mechanism comprises a driving shaft 6, and the center position of the driving shaft 6 is fixedly provided with an adjusting turntable 7, and the driving shaft 6 is rotatably arranged at the inner central position of the positioning support 1 through a bearing, and the outer ends of the driving shaft 6 are rotatably arranged in the inner positions of the positioning blocks 2 on the left and right sides;

[0029] The outer end of the driving shaft 6 included in the adjusting mechanism is connected to the outer wall of the threaded sleeve 3 in the inner positions of the positioning blocks 2 on the left and right sides through a bevel gear set 8, and the adjusting mechanism comprises a lifting threaded rod 9, and the lifting threaded rod 9 is symmetrically screwed in the inner positions of the threaded sleeves 3 on the left and right sides; wherein the outer end of the positioning support 1 is provided with a retraction mechanism, and the retraction mechanism comprises a maxillary retraction frame 4 and a mandibular retraction frame 5, and the maxillary retraction frame 4 and the mandibular retraction frame 5 are distributed in a two-to-one group manner. The retraction mechanism comprises an extension bracket 10, and the extension bracket 10 is fixedly installed on the front ends of the maxillary retraction frame 4 and the mandibular retraction frame 5 on the left and right sides, and the front ends of the symmetrically arranged extension brackets 10 are fixedly connected to the outer ends of the lifting threaded rods 9 on the upper and lower sides, and the maxillary retraction frame 4 and the mandibular retraction frame 5 are driven to change the use height through the threaded connection of the lifting threaded rod 9 and the threaded sleeve 3;

[0030] As Figure 2 , Figures 4-5As shown, when the patient's oral cavity needs to be distracted, the symmetrically distributed maxillary distraction frame 4 and the mandibular distraction frame 5 are firstly placed on the maxillary and mandibular in the oral cavity, so that the maxillary distraction frame 4 and the mandibular distraction frame 5 are limited by the maxillary and mandibular of the patient. Then, when the maxillary and mandibular bones need to be distracted, the adjusting dial 7 set in the middle of the positioning bracket 1 is manually rotated to drive the internal fixed drive shaft 6 to rotate, and the drive shaft 6 is driven by the bevel gear assembly to rotate. 8 drives the meshing threaded sleeve 3 to rotate inside the positioning block 2, and then the lifting threaded rod 9 threadedly connected to the threaded sleeve 3 is limited by the maxillary distraction frame 4 and the mandibular distraction frame 5 at the inner end of the extension bracket 10, so that the rotating threaded sleeve 3 drives the lifting threaded rod 9 and the extension bracket 10 and the maxillary distraction frame 4 and the mandibular distraction frame 5 at their outer ends to move, thereby changing the opening and closing degree of the maxillary distraction frame 4 and the mandibular distraction frame 5 in the patient's mouth without affecting the doctor's surgical operation.

[0031] Example 2: To address the practical problems of existing oral retractors, this embodiment adopts the following technical solution: the retraction mechanism includes a guide slide 11, and the bottom ends of the guide slides 11 are fixedly mounted on the top surfaces of the left and right extension brackets 10 above, and the top ends of the symmetrically arranged guide slides 11 slide through the bottom ends of the external brackets 12, and the bottom ends of the external brackets 12 and the guide slides 11 are connected to each other via a return spring 13;

[0032] The retraction mechanism includes a lip retraction frame 14, which is fixedly mounted on the top of the left and right external brackets 12. The symmetrically arranged lip retraction frames 14 are arranged in a "U" shape. The lip retraction frames 14 on the left and right sides can be rotated to retract the upper lip and the lower lip to facilitate local oral dental apex surgery.

[0033] like Figure 4 、 Figure 6 As shown, during a local tooth apex surgery in the oral cavity, the lip retractor 14 is rotated according to the upper lip or lower lip that needs to be supported so that it corresponds to the lip that needs to be retracted, and then the maxillary retractor 4 and the mandibular retractor 5 on the upper and lower sides are adjusted to the minimum state, and then the lips are placed above the lip retractor 14 on the left and right sides, so that the lips can be retracted by the guide slide 11 connected by the lip retractor 14 and the external bracket 12 in cooperation with the return spring 13, thereby facilitating surgery on the patient's tooth apex.

[0034] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A retractor for oral surgery, comprising a positioning bracket (1), wherein both left and right ends of the positioning bracket (1) are fixedly mounted with positioning blocks (2), and the positioning blocks (2) at the left and right ends are fixedly mounted on the outer ends of the positioning bracket (1); It is characterized in that Also includes: The outer end of the positioning bracket (1) is provided with an adjustment mechanism, and the adjustment mechanism includes a threaded sleeve (3), and the threaded sleeve (3) is rotatably arranged at the inner center position of the left and right positioning blocks (2) through a bearing; The outer end of the positioning bracket (1) is provided with a distraction mechanism, and the distraction mechanism includes a maxillary distraction frame (4) and a mandibular distraction frame (5), and the maxillary distraction frame (4) and the mandibular distraction frame (5) are distributed in a group of two.

2. The oral surgery retractor according to claim 1, characterized in that: The adjustment mechanism includes a driving shaft (6), and an adjustment dial (7) is fixedly provided at the center position of the driving shaft (6). The driving shaft (6) is rotatably provided at the inner center position of the positioning bracket (1) through a bearing, and the outer ends of the driving shaft (6) are both provided through the interior of the positioning blocks (2) on the left and right sides.

3. The oral surgery retractor according to claim 2, characterized in that: The outer end of the driving shaft (6) included in the adjustment mechanism is meshedly connected to the outer wall of the internal threaded sleeve (3) of the positioning block (2) on the left and right sides through the bevel gear group (8), and the adjustment mechanism includes a lifting threaded rod (9), and the lifting threaded rod (9) is threadedly connected to the inside of the threaded sleeve (3) on the left and right sides in a vertically symmetrical manner.

4. The oral surgery retractor according to claim 1, characterized in that: The retraction mechanism includes an extension bracket (10), and the extension bracket (10) is fixedly installed at the front ends of the maxillary retraction frame (4) and the mandibular retraction frame (5) on the upper and lower left and right sides, and the front ends of the symmetrically arranged extension brackets (10) are fixedly connected to the outer ends of the upper and lower lifting threaded rods (9), and the maxillary retraction frame (4) and the mandibular retraction frame (5) are driven to change the use height through the threaded connection between the lifting threaded rod (9) and the threaded sleeve (3).

5. The oral surgery retractor according to claim 4, characterized in that: The pulling mechanism includes a guide slide bar (11), and the bottom end of the guide slide bar (11) is fixedly mounted on the top surface of the left and right extension brackets (10) above, and the top ends of the symmetrically arranged guide slide bars (11) are slidably penetrated through the bottom end of the external bracket (12), and the bottom end of the external bracket (12) and the guide slide bar (11) are connected to each other via a return spring (13).

6. The oral surgery retractor according to claim 5, characterized in that: The retraction mechanism includes a lip retraction frame (14), and the lip retraction frame (14) is fixedly installed on the top of the left and right external brackets (12), and the symmetrically arranged lip retraction frames (14) are all arranged in a "U"-shaped structure. The lip retraction frames (14) on the left and right sides are rotated to retract the upper lip and the lower lip, so as to perform local oral apex surgery.

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