The invention relates to the improvement of a structure of a bionic tooth implant and, more specifically, to a bionic tooth implant as well a basal platform and a subsidiary root thereof.
The invention is based on the improvement of China's invention patent 200710048850.9. China's invention patent 200710048850.9 discloses a bionic tooth implant. The bionic tooth implant comprises a fixed root part, a neck part and a basal platform part. The fixed root part comprises a main root and at least one subsidiary root. The diameter of the subsidiary root is smaller than that of the main root. An inclined hole passes through from the main root or the neck to the outer periphery thereof, or the inclined hole passes through from the main root or the neck to the outer periphery thereof at the same time. The upper end part of each subsidiary root is provided obliquely in one inclined-direction hole. The invention has great early stable performance and early anti-rotation torsionproof capability, may increase contact area between the implant and the jaw, improves successful rate of immediate implant and immediate stress, and strengthens successful rate effectively playing a chewing role for a long time. Although the above invention has proposed the form of the multi-root bionic tooth implant but its structure, basal platform and subsidiary root need to be improved, so that the surgeon may smoothly implement simple and rapid installation operation in the narrow human mouth cavity environment.
As to the problem that the bionic tooth implant of the prior art may not quickly and accurately be positioned and placed during installation, the invention proposes an improved structure of a bionic tooth implant as well as a basal platform and a subsidiary root thereof. As the basal platform and subsidiary root of the bionic tooth implant has simple structure which may rapidly be mounted, the practical value where the bionic tooth implant may be operated in the human mouth cavity may be improved.
In order to achieve the abovementioned objective, the invention adopts the following technical proposal:
A bionic tooth implant, comprising a main root and a basal platform, wherein the main root comprises a fixing root part positioned at the lower part thereof and a basal platform part positioned at the upper part thereof; the bionic tooth implant also comprises at least one subsidiary root; the basal platform is mounted on the main root via the basal platform part of the main root; wherein an inclined hole is provided on the basal platform; an inclined-direction hole communicated with the inclined hole is provided on the main root; the subsidiary root comprises the fixing root part positioned at the lower part thereof and a connected part positioned at the upper part thereof; the connected part is mounted in the inclined hole; the subsidiary root extends from the inclined-direction hole through the main root; and at least a part of the fixing root part is positioned at the outer part of the main root.
The invention has the following technical proposal:
Preferably, in order that the basal platform and the main root are further stably connected together to facilitate the operation, the lower part of the basal platform has at least one cylinder-shaped body extending downwards and tapering. The main root is provided with one hole therein, which accommodates the cylinder-shaped body.
Preferably, in order to facilitate convenient periphery positioning between the basal platform and the main root, a positioning part, matched with each other and used for determining the periphery position of the basal platform, is provided at the lower part of the basal platform and in the main root.
Preferably, the basal platform is provided with at least one cylinder-shaped body at the lower part thereof, which extends downwards and becomes tapering; the positioning part may be one polyhedra extending out from the lower end of the cylinder-shaped body; and the inner part of the main root is provided with a hole accommodating the cylinder-shaped body of the basal platform and a polygon hole accommodating the polyhedral of the basal platform.
Preferably, in order that the main root, the subsidiary root and the basal platform are stably connected together, the surface of the subsidiary root is provided with a thread; and the inclined hole of the basal platform also is provided with the thread matched with the thread on the surface of the subsidiary root, thus facilitating the subsidiary root and the basal platform to be stably connected together.
Preferably, the basal platform part of the main root is formed by the fixing root part of the main root integrally and upwards and provided with a specific body.
Preferably, the basal platform part of the main root is one platform formed by the upper end surface of the fixing root part of the main root.
Preferably, based on the abovementioned proposal, the cylinder-shaped body at the lower part of the basal platform continuously consists of one big cylinder-shaped body and one small cylinder-shaped body; a center through hole is formed axially at the center of the cylinder-shaped body of the basal platform; a center thread hole is provided on the place where the inner part of the main root is corresponding to the center through hole; and the screw is fixed in the center thread hole through the center through hole and connects the basal platform and the main root.
Another objective of the present is to provide a basal platform specifically used for the abovementioned bionic tooth implant. The basal platform comprises a supporting body at the upper part thereof for mounting the bionic tooth and at least one cylinder-shaped body positioned at the lower part thereof, both of which are integrated into one body; at least one positioning block or positioning groove is also formed on the outer surface of the cylinder-shaped body; and the inclined hole is obliquely formed in the inner part of the basal platform and communicated with the inner parts of a supporting body at the upper part thereof and the cylinder-shaped body at the lower part thereof.
Another objective of the present is to provide a subsidiary root specifically used for the abovementioned bionic tooth implant. The subsidiary root comprises a fixing root part positioned at the lower part thereof and a connected part positioned at the upper part thereof; and the connected part is a thread on the outer surface of the upper part of the subsidiary root.
The invention has the following effects: after the main root is implanted into the jaw of the patient, the basal platform is directly inserted into the main root and then the matched installation between the main root and the basal platform is completed. Then the subsidiary root is directly rotated into the jaw, and the integrated implanting of the bionic tooth implant is completed. The two-stage operation and the arrangement of the basal platform are not needed; therefore the whole operation process is convenient and quick.
The invention is described through examples and drawings, wherein
In Example 1 of the invention, as shown in
As shown in
As shown in
The fitting relation among the main root 1, the basal platform 2 and the subsidiary root 3 is shown in
In Example 2 of the invention, as shown in
As shown in
As shown in
As shown in
When being implanted, the main root 11 is firstly implanted into the gum, and then the basal platform 12 is implanted into the main root 11. The polyhedral 1202 is implanted into a polygon hole 1105, which plays a role of peripherally positioning the platform 12, and then the subsidiary root 13 is placed into the platform.
In Example 3 of the invention, as shown in
As to all of characteristics, methods or steps in the processes disclosed in the invention, in additions to mutually exclusive characteristics and/or steps, the rest can be combined in any forms.
Any one of characteristics disclosed in this specification (including any of the appended claims, abstract and drawings) may be replaced by other equivalent or alternative characteristics with similar purpose, unless specifically described. That is, unless specific description, each of the characteristics is just one example in a series of equivalent or similar characteristics.
The invention is not limited to the foregoing specific embodiment. The invention is extended to any new characteristic or new combination disclosed in this specification, as well as any new method, a step of a process or any new combination disclosed in this specification.
Number | Date | Country | Kind |
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201010514066.4 | Oct 2010 | CN | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/CN11/81001 | 10/20/2011 | WO | 00 | 4/20/2013 |