CN209734081U

CN209734081U - Three-dimensional printing chin bone-taking guide plate

Info

Publication number: CN209734081U
Application number: CN201920062748.2U
Authority: CN
Inventors: 于德栋; 吴轶群; 聂萍; 黄伟; 叶丽娟; 孙媛元; 安庆龙; 邹凡
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2019-12-06
Anticipated expiration: 2029-01-15

Abstract

The utility model relates to a medical treatment technical field specifically is a bone baffle is got to three-dimensional printing's chin, and this bone baffle is got to three-dimensional printing's chin adopts three-dimensional printing technique, prints out based on the tooth supports the formula get bone titanium alloy baffle. And printing the bone-taking titanium alloy guide plate based on the tooth support type by adopting a three-dimensional printing technology. The guide plate is fixed by the mandibular dentition and is stable and not loosened, which is the fixing end. The other end, namely the osteotomy guide groove end, is tightly jointed with the chin bone surface, the shape and the thickness of the osteotomy guide groove are designed according to the shape of the bone block to be transplanted, the section is directly tightly jointed with the chin bone surface, and the guide groove can directly circle the part and the shape of the bone to be osteotomy; the thickness of the guide groove varies according to the depth of the osteotomy, and the depth of the drill bit is equal to the sum of the thickness of the guide groove and the depth of the osteotomy. The fixed end is connected with the osteotomy guide groove end through an intermediate connecting part. The 'position-retaining end' of the guide plate is retained on the occlusal surface of the lower jaw dentition to form a stable tooth-supporting guide plate position-retaining end.

Description

Three-dimensional printing chin bone-taking guide plate

Technical Field

The utility model relates to the field of medical technology, specifically a three-dimensional chin of printing gets bone baffle.

Background

In patients with dentition loss and defective dentition, the dental implant is considered to be the best treatment method at present, but the insufficient bone mass of the upper and lower alveolar bones is one of the most main obstacles preventing the successful implementation and the success rate of the treatment of the dental implant. The alveolar bone width and height can be improved to a certain extent by adopting a bone augmentation technology, and the great difficulty in the current planting field is to greatly improve the alveolar bone height. Massive autologous bone grafting is still currently the gold standard for vertical bone augmentation. The autologous bone pieces can be obtained from the chin, the lower jaw lifting branches, the zygomatic bones and other areas.

In the past, doctors often have the following problems by performing operation according to experience: (1) the bone extraction site is inaccurate. The bone extraction operation cannot be completed according to the optimal required bone block thickness, size and shape at the bone defect position, and the non-fit between the bone block for the area graft and the implanted area is often formed. The bone is taken too big, which causes the unnecessary damage of the body; if the bone removal is too small, multiple bone removal is required, and the bone block morphology needs to be modified during the operation. (2) Local important tissues, blood vessels, etc. are easily damaged. Such as the mental nerve. (3) The operation time is long and the wound is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's defect, provide a three-dimensional chin of printing and get bone baffle.

In order to achieve the above object, the utility model provides a following technical scheme:

A three-dimensional printing chin bone-taking guide plate, which comprises a guide plate component, wherein the guide plate component comprises a fixed end, a bone-cutting guide groove end and a middle connecting part, the fixed end, the middle connecting part and the osteotomy guide slot end are sequentially arranged from top to bottom, the middle connecting part is arranged between the fixed end and the osteotomy guide slot end, and the two ends of the middle connecting part are respectively connected and fixed with the bottom surface of the fixed end and the top surface of the osteotomy guide groove end, the surface of one side of the fixed end, which is far away from the middle connecting part, is provided with a plurality of dental alveolus parts, the inside of the dental alveolus parts is clamped and fixed with the outside of the surface of the lower jaw teeth of the human body, the inner wall of the dental groove part is attached to the lower jaw tooth surface of a human body, the surface of one side of the osteotomy guide groove end, which is far away from the middle connecting part, is provided with an osteotomy guide groove, the osteotomy guide groove is clamped and fixed outside a human chin bone, wherein the bottom surface of the inner cavity of the osteotomy guide groove is attached to the surface of the human chin bone.

Preferably, the fixed end, the osteotomy guide slot end and the intermediate connecting portion are of an integrally formed structure.

Preferably, the number of the tooth socket parts is at least two, and the tooth socket parts are sequentially and linearly arranged on the surface of one side of the fixed end, which is far away from the intermediate connecting part.

Preferably, the fixed end is a sector-shaped annular member, wherein at least two groups of tooth groove parts are arranged on the surface of the fixed end in an arc shape.

preferably, the fixing end, the osteotomy guide slot end and the intermediate connecting portion are all formed by three-dimensional printing technology.

Preferably, the fixing end, the osteotomy guide slot end and the intermediate connecting portion are all made of titanium alloy materials.

Preferably, the thickness of the fixed end and the thickness of the middle connecting part are both 2 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the three-dimensional printing chin bone-taking guide plate adopts a three-dimensional printing technology to print a tooth-supported bone-taking titanium alloy guide plate. And printing the bone-taking titanium alloy guide plate based on the tooth support type by adopting a three-dimensional printing technology. The guide plate is fixed by the mandibular dentition and is stable and not loosened, which is the fixing end. The other end, namely the osteotomy guide groove end, is tightly jointed with the chin bone surface, the shape and the thickness of the osteotomy guide groove are designed according to the shape of the bone block to be transplanted, the section is directly tightly jointed with the chin bone surface, and the guide groove can directly circle the part to be osteotomy; the thickness of the guide groove varies according to the depth of the osteotomy, and the depth of the drill bit is equal to the sum of the thickness of the guide groove and the depth of the osteotomy. The fixed end is connected with the osteotomy guide groove end through an intermediate connecting part. The 'position-retaining end' of the guide plate is retained on the occlusal surface of the lower jaw dentition to form a stable tooth-supporting guide plate position-retaining end. The osteotomy guide groove end of the guide plate can be precisely attached to the bone surface of a part to be osteotomy of the corresponding chin, the part of the osteotomy guide groove end, which is contacted with a jawbone, is a bone windowing range, and the effective length of the specific drill point minus the thickness of the osteotomy guide groove is equal to the depth of a bone to be drilled and cut. The surgeon can cut the bone graft block precisely by cutting along the edge of the guide ring with a drill bit of a specific length.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

Fig. 2 is a schematic view of the top surface of the fixing end of the present invention.

In the figure: 1 guide plate subassembly, 2 stiff ends, 3 osteotomy guide slot ends, 4 intermediate junction portion, 5 alveolus portion, 6 osteotomy guide slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

a three-dimensional printed chin bone-taking guide plate comprises a guide plate component 1, wherein the guide plate component 1 comprises a fixed end 2, a bone-cutting guide groove end 3 and an intermediate connecting part 4, the fixed end 2, the intermediate connecting part 4 and the bone-cutting guide groove end 3 are sequentially arranged from top to bottom, the intermediate connecting part 4 is arranged at a position between the fixed end 2 and the bone-cutting guide groove end 3, two ends of the intermediate connecting part 4 are respectively connected and fixed with the bottom surface of the fixed end 2 and the top surface of the bone-cutting guide groove end 3, a plurality of tooth groove parts 5 are arranged on one side surface of the fixed end 2, which is far away from the intermediate connecting part 4, the inner parts of the tooth groove parts 5 are clamped and fixed with the outer parts of mandible teeth of a human body, the inner wall of the tooth groove parts 5 is attached to the mandible tooth surface of the human body, a bone-cutting guide groove 6 is arranged on one side surface of the bone-cutting, the bottom surface of the inner cavity of the osteotomy guide groove 6 is attached to the surface of a human chin, the shape of the osteotomy guide groove 6 is completely consistent with the shape of a to-be-osteotomy, and the thickness is the difference between the length of the working end of a cutting tool (a drill needle or an ultrasonic osteotome) and the required bone thickness.

As a technical optimization scheme of the utility model, stiff end 2, cut bone guide slot end 3 and intermediate junction portion 4 are the integrated into one piece structure.

As a technical optimization scheme of the present invention, the number of the tooth groove portions 5 is at least two, and a side surface of the fixed end 2 away from the intermediate connection portion 4 is arranged linearly in sequence.

As a technical optimization scheme of the utility model, the stiff end 2 is a sector-shaped annular member, wherein the tooth groove parts 5 which are at least two groups are arranged in an arc shape on the surface of the stiff end 2.

As a technical optimization scheme of the utility model, stiff end 2, cut bone guide slot end 3 and intermediate junction portion 4 constitute by three-dimensional printing technique.

As a technical optimization scheme of the utility model, stiff end 2, cut bone guide slot end 3 and intermediate junction portion 4 constitute by titanium alloy material.

As a technical optimization scheme of the utility model, the thickness of stiff end 2 and intermediate junction portion 3 is 2 mm.

The working principle is as follows: when people use the three-dimensionally printed chin bone-taking guide plate, firstly, a patient shoots a CT (computed tomography) and adopts a layer thickness of 0.625mm in a DICOMS (digital imaging and communications in medicine) format, CT data are imported into design software Mimics to carry out three-dimensional reconstruction, important anatomical structures are respectively depicted, after injury is avoided, the shape and the volume of an optimal bone grafting block are designed according to the condition of a bone grafting area, and operation planning is exported to be an STL (standard template library) format file.

Then, in the Geomagic studio 2013 software, a guide plate component 1 made of a tooth-supporting chin bone-cutting titanium alloy material is printed by adopting a three-dimensional printing technology. The guide plate component 1 is fixed in the dental alveolus part 5 for position fixing through human lower jaw tooth clamping, so that the guide plate component 1 is stable and does not loosen in the using process, and the guide plate component is a position fixing end 2. The middle connecting part 4 is arranged at the position between the position fixing end 2 and the bone cutting guide groove end 3, wherein the middle connecting part 4 is positioned at one side of the middle connecting part 4 far away from the fixing end 2, namely the bone cutting guide groove end 3, the shape and the thickness of the bone cutting guide groove 6 arranged at the bottom surface of the bone cutting guide groove end 3 are designed according to the shape of a bone block to be transplanted, the shape of the bone cutting guide groove can be circular, rectangular or irregular, and the bone cutting guide groove is mainly determined according to the needs of a bone grafting area, the bone cutting guide groove 6 is clamped and fixed at the outer part of a chin bone of a human body in the process of using the guide plate component 1, the inner wall of the bone cutting guide groove is attached to the surface of the chin bone, and simultaneously, a mandible tooth of the human body is clamped and fixed in the tooth groove part 5 positioned at the fixing end 2, so that the position of; meanwhile, the thickness of the osteotomy guide groove 6 is varied according to the osteotomy depth, and after the osteotomy site is determined, the osteotomy is performed by using a drill bit having a depth equal to the sum of the thickness of the guide groove and the osteotomy depth. The fixed end 2 of the guide plate assembly 1 is connected to the osteotomy guide end 3 by an intermediate link 4. And the whole guide plate component 1 is made of titanium alloy material with the thickness of 2mm except the osteotomy guide groove end 3.

And finally, performing three-dimensional printing by adopting an electron beam melting forming method and utilizing a medical expensive titanium alloy three-dimensional printer of Aram Q10 in Sweden, wherein the powder is Ti-6A1-4V, cooling, blowing off redundant powder by using an air gun, polishing, grinding, fine machining and the like, then performing mechanical measurement, sterilization, high-temperature high-pressure sterilization, performing biological detection on the implant, performing sterilization double-layer packaging, and thus completing the manufacture of the whole guide plate assembly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. the utility model provides a three-dimensional printing's chin bone conduction board of getting, includes baffle subassembly (1), its characterized in that: the guide plate component (1) comprises a fixed end (2), a bone cutting guide groove end (3) and an intermediate connecting part (4), the fixed end (2), the intermediate connecting part (4) and the bone cutting guide groove end (3) are sequentially arranged from top to bottom, the intermediate connecting part (4) is arranged between the fixed end (2) and the bone cutting guide groove end (3), two ends of the intermediate connecting part (4) are respectively connected and fixed with the bottom surface of the fixed end (2) and the top surface of the bone cutting guide groove end (3), a plurality of dental floss parts (5) are arranged on one side surface of the fixed end (2) far away from the intermediate connecting part (4), the outer parts of mandible teeth of a human body are fixedly clamped in the dental floss parts (5), the inner walls of the dental floss parts (5) are attached to the mandible teeth of the human body, a bone cutting guide groove (6) is arranged on one side surface of the bone cutting guide groove end (3) far away from the intermediate connecting part (, the osteotomy guide groove (6) is clamped and fixed outside the human chin bone, wherein the bottom surface of the inner cavity of the osteotomy guide groove (6) is attached to the surface of the human chin bone.

2. The three-dimensional printed chin bone-taking guide plate of claim 1, wherein: the fixing end (2), the osteotomy guide groove end (3) and the middle connecting part (4) are of an integrally formed structure.

3. The three-dimensional printed chin bone-taking guide plate of claim 1, wherein: the number of the tooth groove parts (5) is at least two, and the side surfaces of the fixed ends (2) far away from the middle connecting parts (4) are sequentially and linearly arranged.

4. The three-dimensional printed chin bone-taking guide plate of claim 1, wherein: the fixed end (2) is a sector-shaped annular piece, wherein at least two groups of tooth groove parts (5) are arranged on the surface of the fixed end (2) in an arc shape.

5. The three-dimensional printed chin bone-taking guide plate of claim 1, wherein: the fixed end (2), the osteotomy guide groove end (3) and the middle connecting part (4) are all formed by a three-dimensional printing technology.

6. The three-dimensional printed chin bone-taking guide plate of claim 1, wherein: the fixed end (2), the osteotomy guide groove end (3) and the middle connecting part (4) are all made of titanium alloy materials.

7. The three-dimensional printed chin bone-taking guide plate of claim 1, wherein: the thickness of stiff end (2) and intermediate junction portion (4) is 2 mm.