CN218979156U - Mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing - Google Patents
Mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing Download PDFInfo
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- CN218979156U CN218979156U CN202222242658.6U CN202222242658U CN218979156U CN 218979156 U CN218979156 U CN 218979156U CN 202222242658 U CN202222242658 U CN 202222242658U CN 218979156 U CN218979156 U CN 218979156U
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Abstract
The utility model relates to the field of maxillofacial surgical medical instruments, in particular to a 3D printing personalized reset fixing guide plate capable of assisting in accurately treating neck fracture of mandibular condyle, wherein the reset fixing guide plate is provided with a bone plate guide groove structure for guiding a preformed titanium plate to be in place and a butterfly wing and screw small hole structure; the three-dimensional shape of the bone plate guide groove is matched with that of a preformed titanium plate; the guide plate is provided with a front butterfly wing, a rear butterfly wing, a spacing butterfly wing, a guide plate inner surface and a guide plate outer surface, wherein the rear butterfly wing wraps the outer side of the rear edge of the mandible, and the shape of the guide plate inner surface is completely attached to the outer surface of the mandible; the screw small hole is positioned on the butterfly wing of the guide plate and used for fixing the guide plate on the mandible in operation and fixing the reset bone fracture end. The resetting and fixing guide plate is simple and convenient in structure, reasonable in design and low in 3D printing cost, and is beneficial to assisting a maxillofacial surgeon in resetting and fixing the fracture of the mandibular condyle neck in operation, so that the aim of accurate operation is fulfilled, and the operation difficulty is reduced.
Description
Technical Field
The utility model relates to the field of maxillofacial surgical medical instruments, in particular to a 3D printing personalized reduction fixing guide plate capable of assisting in accurately treating mandibular condyle neck fracture.
Background
The mandible is the jaw with the largest maxillofacial volume and the most prominent position, and is extremely vulnerable to fracture when trauma occurs. Mandibular fracture, particularly complex mandibular fracture, can lead to deformity of the patient's face and loss of oromandibular system function, and the treatment gist of a mandibular fracture patient is most important to accurately restore its normal anatomical morphology to thereby reconstruct the aesthetic and normal oromandibular system physiological function of the face. Among them, the mandibular condyle cervical fracture is limited in the exposure range of the operation area due to the fact that the mandibular condyle cervical fracture is adjacent to a plurality of important anatomical structures, and lacks a definite fracture reduction reference mark, so that the clinical treatment is quite difficult. How to accurately perform anatomic reduction on crushed bone blocks, accurately place bone plates and reconstruct correct occlusion relations is an important point and a difficult point in the fracture operation.
At present, digital surgical technology is rapidly developed and widely applied to the surgical treatment of mandibular fracture, and the realization of good restoration and functional reconstruction is the goal of such surgical accurate treatment, wherein the most applied digital medical means comprise surgical navigation, titanium plate preforming and 3D guide plate technology. The navigation technology is easy to generate certain systematic errors, the registration is likely to fail, the operation is relatively complex, and the application in the treatment of the mandible fracture is less. The titanium plate preforming technology is based on virtual operation and preforming of the titanium plate on a model printed in 3D before operation, the preformed titanium plate is placed at a position which is simulated and placed before operation in operation, and the reduction and fixation of fracture can be accurately assisted, so that the titanium plate preforming technology has been widely applied to mandibular fracture in recent years. However, when the fracture of the mandibular condyle neck and the adjacent area is reset, a direct and clear reset reference mark is lacking, the phenomenon of 'failure in consideration of the fracture' is easy to occur when the fracture is reset, the resetting effect needs to be checked repeatedly in the operation, the surface morphology of the condyle neck is irregular, and even if a titanium plate preforming technology is applied, the actual condition of fracture resetting and titanium plate placement often has larger deviation with the virtual design on a model before the operation, so that the requirement of accurate treatment cannot be met. The guide plate technology is convenient to operate and small in error, so that the guide plate technology is more applied in the operation, and if the guide plate technology is reasonably designed and applied, the preformed titanium plate can be guided to be accurately positioned at an ideal position of the virtual operation design, and the operation accuracy can be obviously improved and a good treatment effect can be realized. The existing fracture reduction guide plate can only be used for rechecking the reduction effect of the operation, lacks a structure for guiding the titanium plate to be in place, and is difficult for the preformed titanium plate to be in place accurately. Moreover, because the mandibular condyle neck fracture is adjacent to a plurality of important anatomical structures, the exposure range of the operation area is limited, the volume of the guide plate is improperly arranged, and a large amount of soft tissue adhesion is required to be stripped in the operation to be possibly placed successfully, so that the concept of 'minimally invasive' in modern medicine is deviated. Therefore, the reasonable and optimal design of the digital surgical guide plate ensures that the digital surgical guide plate has smaller volume and has a structure for guiding the preformed titanium plate to be accurately positioned, and the aims of ensuring accurate resetting of the fractured end, effectively guiding the preformed titanium plate to be accurately positioned, reducing errors between virtual operation and actual operation, reducing operation difficulty and shortening time can be certainly achieved on the basis of easy positioning of the guide plate, so that the accurate, personalized and minimally invasive treatment of the complex mandibular condyle cervical fracture is realized, and the digital surgical guide plate is an important problem to be solved in clinical urgent need.
Disclosure of Invention
The utility model aims at: aiming at the problems, the mandibular condyle neck fracture reduction fixing guide plate based on 3D printing solves the problems that in the prior art, the actual situation of fracture reduction and titanium plate placement often has larger deviation with the virtual design of the model before operation, and the requirement of accurate treatment cannot be met.
The utility model is realized by the following scheme:
the utility model provides a mandibular condyle neck fracture reduction fixed guide plate based on 3D prints, it includes 3 at least groups butterfly wings, the baffle structure that one end interconnect as an organic whole between the butterfly wings forms bone plate guiding groove between the adjacent butterfly wings, bone plate guiding groove's form is suitable with the titanium board shape that waits to place, is provided with the screw aperture on 2 at least groups butterfly wings; the overall shape outline of the guide plate structure is matched with the mandible to be installed.
Based on the mandibular condyle neck fracture reduction fixing guide plate based on 3D printing, the guide plate comprises a front butterfly wing, a rear butterfly wing, a spacing butterfly wing, a guide plate inner surface and a guide plate outer surface, wherein adjacent butterfly wing rear edges are connected with each other, the guide plate inner surface is a contact surface with a bone body to be installed, and the screw small holes penetrate through the guide plate inner surface and the guide plate outer surface.
Based on the mandibular condyle neck fracture reduction fixing guide plate based on 3D printing, the screw small holes are arranged on at least 2 butterfly wings and are respectively positioned at different positions of the mandibular ascending branch.
Based on the mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing, the length of the guide groove of the bone plate at least covers half of the length of the titanium plate to be assembled.
Based on the mandibular condyle neck fracture reduction fixing guide plate based on 3D printing, the length of at least two titanium nail holes needs to be reserved at two ends of a fracture line in the guide groove of the bone plate.
Based on the mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing, the number of the bone plate guide grooves is at least 2.
Based on the mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing, the diameter of the screw small hole is 2.0mm.
Based on the mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing, the thickness of the reduction fixing guide plate is 2.0mm.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. the utility model can fix the guide plate on the mandible model before operation, perform titanium plate preforming according to the form of the guide groove of the bone fracture plate, save the time of titanium plate forming in operation, drill holes on the mandible according to the screw small holes on the butterfly wings after the reset fixing guide plate is placed on the mandible in operation, and fix the reset fixing guide plate on the mandible by using the titanium nails with the length of 8mm and the diameter of 1.5mm, thereby forming a whole between the reset fixing guide plate and the mandible, guiding the reset of the fractured end of the bone and assisting in fixing the fractured end of the bone. Then accurately placing the pre-formed titanium plate in the guide groove before operation, and taking down the reset fixing guide plate after the titanium plate is fixed by the implanted titanium nails, so that the aim of accurate treatment is fulfilled.
2. The guide plate is simple in design and low in design cost, and can be designed by a clinical staff after being slightly trained; in clinical use, the method is simple and easy to use, can be used skillfully by slightly adding the description, is accurate in positioning in operation, greatly improves the accuracy of the operation, simultaneously can easily position a pre-formed titanium plate before the operation, saves the time of pre-forming the titanium plate in the operation, greatly shortens the operation time and improves the operation efficiency.
Drawings
FIGS. 1-2 are schematic views showing the structure of a reset fixing guide plate in the utility model;
FIGS. 3 to 4 are schematic views showing an assembly structure of a reset fixing guide plate in the present utility model;
description of the drawings: 1. bone plate guide slots; 2. a guide plate main body; 3. a screw small hole; 4. front butterfly wings; 5. rear butterfly wings; 6. spaced butterfly wings; 7. the outer surface of the guide plate; 8. the inner surface of the guide plate; 9. the outer surface of the mandible; 10. preforming a titanium plate; 11. titanium nail holes.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving the equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "inner", "outer", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Example 1
As shown in fig. 1 to 4, the present utility model provides a technical solution:
the utility model provides a mandibular condyle neck fracture reduction fixed guide plate main body 2 based on 3D prints, it includes 3 at least groups butterfly wings 4 ~ 6, one end interconnect as an organic whole's baffle structure between butterfly wings 4 ~ 6, forms bone fracture plate guiding groove 1 between the adjacent butterfly wings 4 ~ 6, bone fracture plate guiding groove 1's form looks adaptation with the preformed titanium board 10 shape that waits to place, is provided with screw aperture 3 on 2 groups butterfly wings 5, 6; the shape outline of the whole guide plate structure is matched with the mandible to be installed.
Based on the structure, the guide plate structure is placed at the preset position, the guide plate 2 is fixed through the screw small holes 3, the whole reset guide plate 2 is completely attached to the outer surface 9 of the mandible, and the position of the preformed titanium plate 10 is accurately positioned through the bone fracture plate guide groove 1, so that the fixed position is ensured to be consistent with the virtual operation.
As an example, the reset fixing guide 2 may include a front butterfly wing 4, a rear butterfly wing 5, a spacing butterfly wing 6, a guide inner surface 8 and a guide outer surface 7, adjacent to the rear edges of the butterfly wings being connected to each other, the guide inner surface 8 being a contact surface with a bone to be installed, and the screw holes 3 being provided through the guide inner surface 8 and the guide outer surface 7.
Based on the structure, the rear butterfly wing 5 wraps the outer side of the trailing edge of the mandible lifting branch, so that the fixing effect is achieved, the shape of the inner surface 8 of the guide plate is completely attached to the outer surface 9 of the mandible, and after each butterfly wing 4-6 is attached to the bone surface, the guide plate structure is completely attached to the bone body to be installed, so that the accuracy of installation and positioning of the guide plate structure is guaranteed.
As an example, the screw holes 3 are on 2 butterfly wings 5, 6, respectively on different jaw broken ends on both sides of the fracture line.
Based on the structure, through designing 2 screw apertures 3 at the broken ends of fracture line both sides jawbone that the difference is waited to connect, can prevent that it from appearing the broken bone that has reset from appearing dislocation once more in drilling vibration in-process in baffle structure assembly and when carrying out drilling operation to the bone body, influence connection and fixed, reduce postoperative recovery effect.
The titanium plate 10 is generally in a strip-shaped structure, a plurality of titanium nail holes 11 are formed in the titanium plate, and two ends of the titanium plate 10 are respectively drilled and fixed on different broken bones at two sides of a fracture line, so that connection between the different broken bones is completed.
As an example, the length of the bone plate guiding slot 1 covers at least half of the length of its titanium plate 10 to be assembled.
Based on the structure, at least half of the length of the titanium plate 10 is limited through the bone plate guide groove 1, so that the titanium plate 10 is located in the length range of the bone plate guide groove 1 during drilling and assembling, the degree of freedom of the titanium plate is limited, the titanium plate 10 is prevented from being deviated during installation, and the accuracy of the position between the connecting broken bones is ensured.
As an example, the bone plate guiding slot 1 needs to reserve at least two lengths of the titanium nail holes 11 at both ends of the fracture line.
Based on the above structure, the single-side broken bones are firmly connected through at least 2 titanium nail holes 11, namely, the titanium plate 10 at least has 4 titanium nail holes 11 which respectively cross the fracture lines of different connective bone bodies, so that the strength and stability of the connection can be ensured.
By way of example, at least 2 bone plate guiding grooves 1 are provided, and at least 2 titanium plates 10 are fixed through at least 2 bone plate guiding grooves 1, so that the connection between different broken bones can be more stable.
By way of example, the screw aperture 3 has a diameter of 2.0mm.
As an example, the reset fixing guide 2 has a thickness of 2.0mm.
The scheme is formed and the using method;
the small-sized bone fracture titanium plate 10 is preformed according to the bone fracture plate guide groove 1 and the mandible model before operation, time for forming the titanium plate 10 during operation is saved, the reduction fixing guide plate 2 is placed on the mandible during operation, holes are drilled on the mandible according to the screw small holes 3 on the butterfly wings 5 and 6, and then the reduction fixing guide plate 2 is fixed on the mandible by using titanium nails with the length of 8mm and the diameter of 1.5mm, so that the reduction fixing guide plate 2 and the mandible form a whole, the reduction of a broken end of the bone is guided, and the broken end of the bone is fixed in an auxiliary mode. Then accurately placing the pre-formed titanium plate 10 in the bone fracture plate guide groove 1 before operation, and taking down the reset fixed guide plate 2 after the titanium nails are implanted to fix the titanium plate 10, so that the aim of accurate treatment is achieved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. Mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing, which is characterized in that: the novel bone fracture plate comprises 3 groups of butterfly wings, wherein one ends of the butterfly wings are connected into an integrated guide plate structure, 2 bone fracture plate guide grooves are formed between adjacent butterfly wings, the shape of each bone fracture plate guide groove is matched with the shape of a titanium plate to be placed, and at least 2 groups of butterfly wings are provided with screw small holes; the overall shape outline of the guide plate structure is matched with the mandible to be installed.
2. The mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing according to claim 1, wherein: the guide plate comprises a front butterfly wing, a rear butterfly wing, a spacing butterfly wing, a guide plate inner surface and a guide plate outer surface, wherein the rear edges of the adjacent butterfly wings are connected with each other, the guide plate inner surface is a contact surface with a bone to be installed, and the screw small holes penetrate through the inner side surfaces of the rear butterfly wing and the spacing butterfly wing and the outer side surfaces of the rear butterfly wing and the spacing butterfly wing.
3. The mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing according to claim 2, wherein: the screw small holes are arranged on the 2 butterfly wings and are respectively positioned at different positions of the mandibular lifting branch.
4. A mandibular condyle cervical fracture reduction fixation guide based on 3D printing as claimed in claim 3, wherein: the length of the bone plate guiding groove at least covers half of the length of the titanium plate to be assembled.
5. The mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing according to claim 4, wherein: the bone fracture plate guide groove needs to reserve the length of at least two titanium nail holes at two ends of the fracture line.
6. The mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing according to claim 5, wherein: the number of the bone plate guide grooves is at least 2.
7. The mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing according to claim 6, wherein: the diameter of the screw small hole is 2.0mm.
8. The mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing according to claim 7, wherein: the thickness of the reset fixed guide plate is 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222242658.6U CN218979156U (en) | 2022-08-24 | 2022-08-24 | Mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222242658.6U CN218979156U (en) | 2022-08-24 | 2022-08-24 | Mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218979156U true CN218979156U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222242658.6U Active CN218979156U (en) | 2022-08-24 | 2022-08-24 | Mandibular condyle cervical fracture reduction fixing guide plate based on 3D printing |
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| Country | Link |
|---|---|
| CN (1) | CN218979156U (en) |
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2022
- 2022-08-24 CN CN202222242658.6U patent/CN218979156U/en active Active
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