CN218606894U - Synchronous bone grafting device for dental implantation - Google Patents

Abstract

The utility model belongs to the technical field of medical instruments and discloses a synchronous bone grafting device for dental implantation, wherein a retention structure is arranged at the top of an osteogenesis structure, and a barrel body is arranged on the retention structure; the osteogenic structure is provided with an outer side surface and an inner side surface, the outer side surface is covered with a smooth absorbable collagen membrane, and the inner side surface is covered with a rough absorbable collagen membrane; the fixing structure is cylindrical, and the plane of the top end of the fixing structure is superposed with the top end of the inverted U-shaped osteogenesis structure; the osteogenesis structure is provided with a titanium bracket, and holes are uniformly distributed on the titanium bracket; the edges of the smooth absorbable collagen membrane and the rough absorbable collagen membrane were 1mm beyond the edges of the titanium stent. The utility model changes the idea of partial stomatologist planting treatment; because the fixation of the titanium membrane and the collagen membrane is a difficult point of the operation when the conventional titanium membrane is used for increasing the bone, one part of doctors abandons the implantation and repair of part of patients with large-area three-dimensional bone defects. The utility model discloses improved the fixed back of titanium membrane, more doctors will be willing to carry out this type of operation.

Description

Synchronous bone grafting device for dental implantation

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a tooth is planted and is planted bone device simultaneously.

Background

At present, the defect reconstruction and bone regeneration of the alveolar ridge bone with large local area are always difficult to implant and repair the oral cavity, and particularly the three-dimensional reconstruction is more difficult. At present, there are many clinical methods for alveolar bone reconstruction, including Guided Bone Regeneration (GBR), onlay bone block transplantation, distraction osteogenesis and bone splitting techniques. Among them, the guided bone regeneration and the onlay bone block transplantation are most widely used because of their relative convenience in operation and capability of simultaneously guiding the osteogenesis in a plurality of directions. And the onlay bone block transplantation needs to open a second operation wound, the wound is large, and the onlay bone block transplantation is not easy to accept by patients. The GBR technology is the most applied and most convenient bone augmentation mode at present, and is a technology for selectively removing tissue epithelium and connective tissue implantation through a bone scaffold material and a barrier membrane to proliferate osteoblasts, thereby augmenting the bone mass of an alveolar ridge. However, the materials conventionally used as barrier membranes (e.g., absorbable collagen membrane, non-absorbable polytetrafluoroethylene membrane) lack self-forming ability, are difficult to maintain a stable space, and may collapse after surgery, interfering with bone regeneration. Compared with the barrier film, the titanium mesh has certain strength, can guide and control the contour and the shape of the regenerated bone, and keeps the space relatively stable. Research shows that the application of titanium mesh bone augmentation can reach 10mm in the vertical direction and the horizontal direction. However, the fixation of the titanium mesh used in clinical practice is a difficult problem, the existing methods include titanium nail fixation, absorbable suture fixation and the like, the operation is complex, the retention effect is general, and particularly, the titanium nail is inconvenient to take out, and the wound of the second-stage operation is large. In addition, the titanium mesh used at present needs to be pre-bent and shaped in the operation, and is difficult to be matched with the shape of the bone defect. Finally, titanium mesh is only one type of stent and still requires the use of absorbable or non-absorbable membranes as barrier membranes.

Through the above analysis, the problems and defects of the prior art are as follows: in the prior art, the titanium mesh is fixed by the titanium nails or absorbable sutures, the operation is complex, the retention effect is general, particularly, the titanium nails are inconvenient to take out, and the wound of the second-stage operation is large. In addition, the titanium mesh used at present needs to be pre-bent and shaped in the operation, is difficult to be matched with the shape of the bone defect, and still needs to use a barrier film.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model provides a bone device is planted to tooth in same phase.

The utility model is realized in such a way that the dental implantation synchronous bone grafting device is provided with an osteogenic structure; the top of the osteogenesis structure is provided with a retention structure, and the retention structure is provided with a barrel body;

the osteogenic structure is provided with an outer side surface and an inner side surface, the outer side surface is covered with a smooth absorbable collagen film, and the inner side surface is covered with a rough absorbable collagen film.

Furthermore, the fixing structure is cylindrical, and the plane of the top end of the fixing structure is coincided with the top end of the inverted U-shaped osteogenesis structure.

Furthermore, a titanium support is arranged on the osteogenesis structure, and holes are uniformly distributed on the titanium support.

Further, the edges of the smooth absorbable collagen membrane and the rough absorbable collagen membrane exceed the edges of the titanium stent by 1mm.

Furthermore, the central screw is installed at the center of the retention structure, and the lower end of the retention structure is fixed in the implant.

Furthermore, a step is arranged above the center of the retention structure and is embedded with the expansion part of the central screw.

In combination with the technical problems of the above technical solutions and solutions, please analyze from the following aspects the utility model discloses the advantages and positive effects that technical solution to be protected possessed are:

first, to the technical problem that above-mentioned prior art exists and the degree of difficulty of solving this problem, combine closely the utility model discloses an in-process result and data etc. of technical scheme and the research and development that will protect, analyze in detail, deeply the utility model discloses technical problem that technical scheme how solved, some that bring after the solution problem possess creative technological effect. The specific description is as follows:

the utility model can be used for large-area bone defect and vertical bone defect for dental implantation repair; the three-dimensional increment of the alveolar bone of the patient is completed in the same period of implanting the implant, so that on one hand, the operation of a doctor is simplified, on the other hand, the time for waiting for the implantation of the patient is saved, and the operation times and the pain are reduced. The utility model discloses reducible planting site bone height is not enough patient 2 ~ 4 times number of times of seeing a doctor, and total period of treatment time reduces 3 ~ 6 months, compares and plants reducible 25% recovery time behind the conventional bone grafting.

The utility model discloses will change the theory that part dentist planted the treatment. Because the fixation of the titanium membrane and the collagen membrane is a difficult point of the operation when the conventional titanium membrane is used for increasing the bone, part of doctors abandon the implantation repair of part of patients with large-area three-dimensional bone defects. The utility model discloses improved the fixed back of titanium membrane, more doctors will be willing to carry out this type of operation. About 40% of patients clinically treated by implantation and repair have bone defects, and bone augmentation surgery is required. However, the titanium membrane retained by the implant abutment in the prior art still needs a doctor to pre-bend the titanium membrane in the operation, cannot be used for vertical bone increment, cannot adopt an embedded healing mode, and has poor use convenience and bone formation effect. The titanium membranes used in the prior art, which have shown that it is still necessary to cover absorbable or non-absorbable collagen membranes, increase the material cost, and the fixation of the barrier membrane is also a difficult point in the surgical operation. The utility model synthesizes collagen membrane inside and outside the titanium membrane fixed by the implant, solves the fixation problem of the membrane, and reduces the operation difficulty and the material cost.

Second, regard as a whole or from the angle of product to technical scheme, the utility model discloses technical effect and advantage that technical scheme that will protect possesses, the concrete description is as follows:

the utility model discloses can make multiple model, according to CBCT scanning data measuring alveolar bone defect size, the corresponding model of pre-selection carries out the bone grafting device of maintenance through the planting body of planting in the same period, is applied to and plants clinically, makes things convenient for doctor's operation, reinforcing bone increment effect. Simultaneously the utility model discloses because easy and simple to handle, be applicable to the planting of a considerable part and restore patient, market prospect is wide.

Drawings

Fig. 1 is a schematic structural view of a dental implantation contemporaneous bone grafting device provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of the lateral side and the medial side provided by the embodiment of the present invention;

fig. 3 is a schematic perspective view illustrating a dental implant synchronous bone grafting device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a central screw and an implant according to an embodiment of the present invention;

in the figure: 1. a retention structure; 2. an osteogenic structure; 3. an outer side surface; 4. an inner side surface; 5. a central screw; 6. an implant; 7. a titanium stent; 8. a smooth absorbable collagen membrane; 9. the roughened resorbable collagen membrane.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

1. Illustrative embodiments are explained. This section is an explanatory embodiment for expanding the technical solutions of the claims so as to make those skilled in the art fully understand how to implement the present invention.

As shown in fig. 1, the top of the bone structure 2 in the device for implanting bone at the same period in tooth provided by the embodiment of the invention is provided with a fixing structure 1, and the fixing structure 1 is provided with a cylinder. The osteogenesis structure 2 of the present invention is made of a collagen film wrapped outside a titanium metal. The retention structure 1 has the functions of encircling the central screw, sealing the top plane of the implant and fixing. The osteogenic structure 2 serves as an osteogenic space support and barrier (to isolate soft tissue from growing into bone tissue). The retention structure 1 is similar to a cylinder, and the plane of the tip thereof coincides with the tip of the n-shaped osteogenic structure 2.

As shown in fig. 2-3, the osteogenesis structure 2 provided in the embodiment of the present invention has an outer side surface 3 and an inner side surface 4, the outer side surface 3 is covered with a smooth absorbable collagen membrane 8, which is attached to the gum and the soft tissue, so as to facilitate the attachment and formation of the soft tissue, and is in contact with the gum and the connective tissue during actual use; the inner side surface 4 is covered with a coarse absorbable collagen membrane 9, which is beneficial to the attachment of bone trabecula so as to form bone and is contacted with a bone forming material in actual use. The smooth absorbable collagen film 8 and the rough absorbable collagen film 9 have no holes, the edges of the smooth absorbable collagen film 8 and the rough absorbable collagen film 9 exceed the edges of the titanium bracket 7 by 1mm, and the titanium bracket 7 is a TC4 titanium alloy bracket. The osteogenesis structure 2 is provided with a titanium bracket 7, holes are uniformly distributed on the titanium bracket 7, and the holes are used for exchanging substances such as blood, oxygen, nutritional factors and the like, so that a nutritional basis is provided for new bone formation in the device. The vertical section of the osteogenic structure 2 is similar to 'n', the width of the 'n' structure can be designed into different widths of 7, 8, 9, 10mm and the like according to needs, the height can be designed into different heights of 6, 7, 8, 9, 10mm and the like according to needs, the thickness of the titanium bracket 7 is about 0.5mm, the thickness of the collagen film on the inner side and the outer side is about 1.5-2 mm, and the osteogenic structure has the functions of supporting and protecting the osteogenic material.

As shown in fig. 4, the center of the fixing structure 1 provided by the embodiment of the present invention is provided with a central screw 5 for fixing the bone grafting device on the lower implant 6. The lower end of the retention structure 1 is fixed in the implant 6, and a step is arranged above the center of the retention structure 1 and is embedded with the expansion part of the central screw. The length between the apical plane of the implant 6 and the upper end surface of the retention structure 1 is 2mm, the height of the implant 6 surrounded by the osteogenic structure 2 is at least 2mm (adjustable according to the height of the bone defect and the position of the implant in the bone), the height of the implant 6 not surrounded by the osteogenic structure 2 is 2mm, allowing for the formation of more than 2mm of new bone above the apical plane of the implant 6.

The utility model discloses a theory of operation does: during the use, the back is taken one's place to first operation planting body 6, and bone powder or other osteogenic material are filled into to the bone defect part around planting, get the utility model discloses integrated device puts into and takes one's place on planting body 6 to wrap the osteogenic material in medial surface 4, 5 maintenance of back screw in central screw, because of its maintenance structure 1 central authorities top is provided with the step, supply central screw 5 fixed, so the utility model discloses have better fixity, difficult emergence is rotatory and drops. Then, sufficient mucous membrane tension reduction is needed, and the wound is completely closed by suturing the gum. During second phase operation, can take out after unscrewing central screw 5 the utility model discloses whole device, back screw in healing base station reaches good osteogenesis effect.

2. Application examples. In order to prove the creativity and the technical value of the technical scheme of the invention, the part is the application example of the technical scheme of the claims on specific products or related technologies.

The device is designed according to three-dimensional software for 3D printing at present, but is not used in human body planting operation, and beagle animal experiments and related designs are written at present.

3. Evidence of the relevant effects of the examples. The embodiment of the utility model provides an obtained some positive effects in research and development or use, really possess very big advantage with prior art, the following content is described in combination with test process's data, chart etc..

There is no evidence to prove its osteogenesis effect, animal experiments are currently carried out, but according to in vitro experiments, it is shown that it can achieve tight combination with implant and central screw, and has good retention effect.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.

Claims (6)

1. The utility model provides a bone device is planted to tooth in same phase, its characterized in that, bone device is planted to tooth in same phase is provided with:

an osteogenic structure;

the top of the osteogenesis structure is provided with a retention structure, and the retention structure is provided with a barrel body;

the osteogenic structure is provided with an outer side surface and an inner side surface, the outer side surface is covered with a smooth absorbable collagen film, and the inner side surface is covered with a rough absorbable collagen film.

2. The dental implant contemporaneous bone grafting device of claim 1, wherein said retention structure is cylindrical and the plane of the tip of the retention structure coincides with the tip of the n-shaped osteogenesis structure.

3. The dental implant contemporaneous bone grafting device according to claim 1, wherein a titanium bracket is provided on said osteogenic structure, and holes are uniformly distributed on said titanium bracket.

4. The dental implant contemporaneous bone grafting device according to claim 1, wherein edges of said smooth absorbable collagen membrane and said rough absorbable collagen membrane extend 1mm beyond edges of said titanium scaffold.

5. The dental implant contemporaneous bone grafting device of claim 1, wherein said retention structure is centrally provided with a central screw, and a lower end of the retention structure is fixed in the implant.

6. The dental implant contemporaneous bone grafting device of claim 1, wherein said retention structure is provided with a step centrally above and engaging with an enlarged portion of the central screw.

Images