3D printing guide plate for mandible osteotomy

Abstract

The utility model provides a 3D printing guide plate for mandible osteotomy, which comprises a positioning component, and the positioning component comprises an upper positioning seat, two upper fixing rods, an upper clamping seat, two nail holes, a limiting plate, a lower positioning seat, a lower clamping seat, two grooves, two fixing nails, an upper limiting groove and an occlusion seat. According to the utility model, the edge clamping seat and the bottom clamping seat are respectively clamped at the rear edge and the bottom of the mandible, then the occlusion seat is clamped on the teeth of the mandible, the lower clamping seat is clamped in the lower limiting groove, the upper clamping seat is clamped in the upper limiting groove, and the limiting plate is inserted into the mounting groove in the upper positioning seat; the distance between the upper positioning seat and the lower positioning seat is adjusted, the fixing nails are inserted into the nail holes and the positioning holes, the limiting plate and the upper positioning seat can be fixedly connected, the position of the occlusion seat is limited by teeth, so that the position of the guide plate main body is fixed, and the guide plate main body is fixed under the condition that the lower jawbone is not damaged.

Description

Technical Field

[0001] The utility model relates to a guide plate, in particular to a 3D printed guide plate used for mandibular osteotomy surgery, and belongs to the technical field of oral and maxillofacial surgical medical instruments. Background Art

[0002] The mandibular osteotomy guide is a medical device that assists in mandibular osteotomy surgery. It is generally made of medical-grade stainless steel, titanium alloy and other materials. It has good biocompatibility and corrosion resistance. With the development of technology, 3D printing is often used to make guides.

[0003] The main function of the mandibular osteotomy guide is to guide the doctor to perform precise osteotomy during surgery, ensuring the accuracy and safety of the surgery. The positioning and fixation of the mandibular osteotomy guide can help the doctor determine the position and shape of the osteotomy line, thereby guiding the doctor to perform precise osteotomy operations. It can also guide the doctor to cut along the predetermined osteotomy line, avoiding deviations and errors during surgery, and ensuring the accuracy and safety of the surgery.

[0004] In the prior art, when fixing the mandibular osteotomy guide, nail holes are usually opened on the osteotomy guide, and the osteotomy guide is fixed to the patient's mandible by fixing nails. This fixation method is likely to cause damage to the human face and is not conducive to the patient's postoperative recovery. Therefore, a 3D printed guide for mandibular osteotomy surgery is proposed. Utility Model Content

[0005] In view of this, the utility model provides a 3D printed guide plate for mandibular osteotomy surgery to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: a 3D printed guide plate for mandibular osteotomy surgery, comprising a positioning assembly, wherein the positioning assembly comprises an upper positioning seat, two upper fixing rods, an upper clamping seat, two nail holes, a limiting plate, a lower positioning seat, a lower clamping seat, two grooves, a positioning hole, two lower fixing rods, two fixing nails, an upper limit groove and an occlusal seat;

[0007] The upper clamping seat is fixedly connected to the upper positioning seat by the two upper fixing rods, and the lower clamping seat is fixedly connected to the lower positioning seat by the two lower fixing rods. The upper limit groove is opened on the front surface of the engaging seat, and the positioning holes are fixedly connected to the inside of the limiting plate at equal intervals. The two grooves are symmetrically opened on one side of the upper positioning seat and the lower positioning seat, and the two nail holes are symmetrically opened in the interior of the upper positioning seat, and the two fixing nails are symmetrically installed in the interior of the nail holes.

[0008] Further preferably, the limit plate is fixedly connected to the upper surface of the lower positioning seat, and the limit plate is slidably connected to the inside of the upper positioning seat.

[0009] Further preferably, the position of the positioning hole is matched with the size of the nail hole, and the fixing nail is slidably connected to the inner wall of the positioning hole.

[0010] Further preferably, the upper clamping seat is slidably connected to the inner side wall of the upper limit slot.

[0011] Further preferably, a main body component is installed on the outer side wall of the lower clamping seat, and the main body component includes a guide plate body, an edge clamping seat, a bottom clamping seat and a lower limit groove;

[0012] The lower limiting groove is arranged on the outer side wall of the guide plate body, and the lower clamping seat is slidably connected to the inner side wall of the lower limiting groove.

[0013] Further preferably, the edge holder is fixedly connected to one side of the guide plate body.

[0014] Further preferably, the bottom holder is fixedly connected to the bottom of the guide plate body.

[0015] Further preferably, the guide plate body, the edge holder and the bottom holder are integrally formed by 3D printing technology.

[0016] Due to the adoption of the above technical scheme, the embodiment of the utility model has the following advantages: the utility model clamps the edge clamp and the bottom clamp at the rear edge and the bottom of the mandible respectively, and then clamps the occlusal seat on the teeth of the mandible, clamps the lower clamp in the lower limit groove, clamps the upper clamp into the upper limit groove, inserts the limit plate into the installation groove in the upper positioning seat, and then adjusts the distance between the upper positioning seat and the lower positioning seat, inserts the fixing nail into the nail hole and the positioning hole, and the limit plate can be fixedly connected to the upper positioning seat. Since the position of the occlusal seat is limited by the teeth, the position of the guide plate body is fixed, and the guide plate body is fixed without causing damage to the mandible.

[0017] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the main components of the utility model;

[0021] Figure 3 This is a structural diagram of the positioning component of the utility model;

[0022] Figure 4 This is a structural diagram of the upper positioning seat of the utility model;

[0023] Figure 5 This is a structural diagram of the limiting plate of the utility model.

[0024] Figure numerals: 101, positioning assembly; 11, upper positioning seat; 12, upper fixing rod; 13, upper clamping seat; 14, nail hole; 15, limit plate; 16, lower positioning seat; 17, lower clamping seat; 18, groove; 19, positioning hole; 20, lower fixing rod; 21, fixing nail; 22, upper limit groove; 23, bite seat; 301, main body assembly; 31, guide plate body; 32, edge clamping seat; 33, bottom clamping seat; 34, lower limit groove. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 -5, the embodiment of the utility model provides a 3D printed guide plate for mandibular osteotomy surgery, including a positioning assembly 101, the positioning assembly 101 includes an upper positioning seat 11, two upper fixing rods 12, an upper clamping seat 13, two nail holes 14, a limiting plate 15, a lower positioning seat 16, a lower clamping seat 17, two grooves 18, a positioning hole 19, two lower fixing rods 20, two fixing nails 21, an upper limit groove 22 and an occlusal seat 23;

[0028] The upper clamping seat 13 is fixedly connected to the upper positioning seat 11 through two upper fixing rods 12, and the lower clamping seat 17 is fixedly connected to the lower positioning seat 16 through two lower fixing rods 20. The upper limit groove 22 is opened on the front surface of the engaging seat 23. The positioning holes 19 are equidistantly fixedly connected to the inside of the limiting plate 15. The two grooves 18 are symmetrically opened on one side of the upper positioning seat 11 and the lower positioning seat 16. The two nail holes 14 are symmetrically opened inside the upper positioning seat 11, and the two fixing nails 21 are symmetrically installed inside the nail holes 14.

[0029] In one embodiment, the limit plate 15 is fixedly connected to the upper surface of the lower positioning seat 16, the limit plate 15 is slidably connected to the inside of the upper positioning seat 11, the position of the positioning hole 19 is adapted to the size of the nail hole 14, and the fixing nail 21 is slidably connected to the inner wall of the positioning hole 19. By inserting the fixing nail 21 into the positioning hole 19 and the nail hole 14, the lower positioning seat 16 can be connected to the upper positioning seat 11.

[0030] In one embodiment, the upper clamping seat 13 is slidably connected to the inner wall of the upper limit slot 22 , and the engaging seat 23 can be connected to the upper positioning seat 11 through the upper clamping seat 13 .

[0031] In one embodiment, a main body component 301 is installed on the outer side wall of the lower clamping seat 17, and the main body component 301 includes a guide plate body 31, an edge clamping seat 32, a bottom clamping seat 33 and a lower limit groove 34;

[0032] The lower limit groove 34 is opened on the outer wall of the guide plate body 31, and the lower clamping seat 17 is slidably connected to the inner wall of the lower limit groove 34. Through the cooperation of the lower clamping seat 17 and the lower limit groove 34, the lower positioning seat 16 can be connected to the guide plate body 31, and the bite seat 23 can be connected to the upper positioning seat 11 through the upper clamping seat 13. When the limit plate 15 is connected to the upper positioning seat 11 using the fixing nail 21, the guide plate body 31, the lower positioning seat 16, the upper positioning seat 11 and the bite seat 23 are connected into a whole.

[0033] In one embodiment, the edge holder 32 is fixedly connected to one side of the guide plate body 31, and the bottom holder 33 is fixedly connected to the bottom of the guide plate body 31. The guide plate body 31, the edge holder 32 and the bottom holder 33 are integrally formed through 3D printing technology. The guide plate body 31 can be clamped to the edge of the rear part of the mandible through the edge holder 32, and the guide plate body 31 can be clamped to the bottom of the mandible through the bottom holder 33. When the limit plate 15 is connected to the upper positioning seat 11 using the fixing pin 21, the guide plate body 31, the lower positioning seat 16, the upper positioning seat 11 and the occlusal seat 23 are connected into a whole, thereby realizing the fixation of the guide plate body 31 and the mandible.

[0034] When the utility model is working, the guide plate body 31 is first installed, the edge clamping seat 32 is clamped at the rear edge of the mandible, the bottom clamping seat 33 is clamped at the bottom of the mandible, and then the occlusal seat 23 is clamped on the teeth at the upper part of the mandible, and then the lower clamping seat 17 is driven by the lower positioning seat 16, and the lower clamping seat 17 is clamped in the lower limit groove 34, and the lower positioning seat 16 is pushed upward. At this time, the position of the guide plate body 31 is limited, and it is kept clamped on the outside of the mandible, and then the upper clamping seat is driven by the upper positioning seat 11 13, insert the upper clamping seat 13 into the upper positioning groove 22, insert the limiting plate 15 into the mounting groove in the upper positioning seat 11, and then adjust the distance between the upper positioning seat 11 and the lower positioning seat 16. After the adjustment is completed, insert the fixing nail 21 into the nail hole 14 and the positioning hole 19 to fix the limiting plate 15 to the upper positioning seat 11. Since the position of the occlusal seat 23 is limited by the teeth, the position of the guide plate body 31 is fixed, and the guide plate body 31 is fixed without causing damage to the mandible.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A 3D printed guide plate for mandibular osteotomy surgery, comprising a positioning assembly (101), characterized in that: The positioning assembly (101) comprises an upper positioning seat (11), two upper fixing rods (12), an upper clamping seat (13), two nail holes (14), a limiting plate (15), a lower positioning seat (16), a lower clamping seat (17), two grooves (18), a positioning hole (19), two lower fixing rods (20), two fixing nails (21), an upper limit groove (22) and an engaging seat (23); The upper clamping seat (13) is fixedly connected to the upper positioning seat (11) through the two upper fixing rods (12), and the lower clamping seat (17) is fixedly connected to the lower positioning seat (16) through the two lower fixing rods (20). The upper limit groove (22) is opened on the front surface of the engaging seat (23), and the positioning hole (19) is fixedly connected to the inside of the limiting plate (15) at an equal distance. The two grooves (18) are symmetrically opened on one side of the upper positioning seat (11) and the lower positioning seat (16). The two nail holes (14) are symmetrically opened in the interior of the upper positioning seat (11), and the two fixing nails (21) are symmetrically installed in the interior of the nail holes (14).

2. A 3D printed guide plate for mandibular osteotomy according to claim 1, characterized in that: The limiting plate (15) is fixedly connected to the upper surface of the lower positioning seat (16), and the limiting plate (15) is slidably connected to the inside of the upper positioning seat (11).

3. The 3D printed guide plate for mandibular osteotomy according to claim 1, characterized in that: The position of the positioning hole (19) is matched with the size of the nail hole (14), and the fixing nail (21) is slidably connected to the inner wall of the positioning hole (19).

4. The 3D printed guide plate for mandibular osteotomy according to claim 1, characterized in that: The upper clamping seat (13) is slidably connected to the inner side wall of the upper limit slot (22).

5. The 3D printed guide plate for mandibular osteotomy according to claim 1, characterized in that: The outer side wall of the lower clamping seat (17) is installed with a main body component (301), and the main body component (301) includes a guide plate body (31), an edge clamping seat (32), a bottom clamping seat (33) and a lower limit groove (34); The lower limiting groove (34) is formed on the outer side wall of the guide plate body (31), and the lower clamping seat (17) is slidably connected to the inner side wall of the lower limiting groove (34).

6. A 3D printed guide plate for mandibular osteotomy according to claim 5, characterized in that: The edge holder (32) is fixedly connected to one side of the guide plate body (31).

7. A 3D printed guide plate for mandibular osteotomy according to claim 6, characterized in that: The bottom clamping seat (33) is fixedly connected to the bottom of the guide plate body (31).

8. A 3D printed guide plate for mandibular osteotomy according to claim 7, characterized in that: The guide plate body (31), the edge holder (32) and the bottom holder (33) are integrally formed by 3D printing technology.

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