阅读说明：本技术 种植体和植体系统 (Implant and implant system ) 是由 许德馨 欧志坚 李好好 张江华 林杰仁 朱林彬 于 2021-01-21 设计创作，主要内容包括：本发明的实施例提供了一种种植体和植体系统,种植体设有外螺纹槽,外螺纹槽设有外切屑刃,外切屑刃的一端延伸至种植体的植入端；种植体的植入端设有螺纹孔,螺纹孔设有内切屑刃,内切屑刃的一端延伸至植入端。种植体同时设有外螺纹槽和内螺纹槽,并且,在外螺纹槽和内螺纹槽上均设有切屑刃,种植体的自攻能力强,种植体便于旋入牙床中,提高作业效率,提高种植精度；并且,种植体对于牙床的损伤小。同时,种植体同时具备两个螺纹槽,种植体旋入牙床后,内螺纹槽和外螺纹槽均与牙床组织结合,种植体与牙床的结合牢固,种植体不易松动和脱落,提高手术成功率。(The embodiment of the invention provides an implant and an implant system, wherein the implant is provided with an external thread groove, the external thread groove is provided with an external chip cutting edge, and one end of the external chip cutting edge extends to an implanting end of the implant; the end of implanting of planting body is equipped with the screw hole, and the screw hole is equipped with interior smear metal sword, and the one end of interior smear metal sword extends to implanting the end. The implant is provided with the external thread groove and the internal thread groove simultaneously, and the cutting edges are arranged on the external thread groove and the internal thread groove, so that the self-tapping capability of the implant is strong, the implant is convenient to screw into a gum, the operation efficiency is improved, and the implantation precision is improved; and the implant has little damage to the gum. Meanwhile, the implant is provided with two thread grooves, after the implant is screwed into the gum, the inner thread groove and the outer thread groove are both combined with gum tissues, the combination of the implant and the gum is firm, the implant is not easy to loosen and fall off, and the success rate of the operation is improved.)

1. An implant, comprising:

the implant is provided with an external thread groove, the external thread groove is provided with an external cutting blade, and one end of the external cutting blade extends to the implanting end of the implant; the implanting end of the implant is provided with a threaded hole, the threaded hole is provided with an inner cutting blade, and one end of the inner cutting blade extends to the implanting end.

2. The implant of claim 1, wherein:

the outer cutting edge and the inner cutting edge have a spacing in the circumferential direction of the implant.

3. The implant of claim 1, wherein:

the number of the outer cutting edges and the number of the inner cutting edges are multiple, and the outer cutting edges and the inner cutting edges are alternately arranged in the circumferential direction of the implant.

4. The implant of claim 1, wherein:

the outer thread groove has an inner thread diameter gradually increasing in a direction from an implanting end of the implant to a trailing end of the implant.

5. The implant of claim 1, wherein:

the implant comprises a first planting section and a second planting section which are connected, wherein one end of the first planting section, which is far away from the second planting section, is an implanting end; the outer contour of the cross section of the first planting section is circular, and the outer contour of the cross section of the second planting section is non-circular.

6. The implant of claim 5, wherein:

the outer contour of the cross section of the second planting section is triangular, square or oval.

7. The implant of any one of claims 1-6, wherein:

the tail end of the implant is provided with an assembly groove for being inserted into a base station, the assembly groove comprises a sealing groove section and an anti-rotation groove section which are sequentially connected in the groove depth direction of the assembly groove, one end, far away from the anti-rotation groove section, of the sealing groove section is a notch of the assembly groove, the inner diameter of the sealing groove section is gradually reduced in the direction from the notch of the assembly groove to the groove bottom, and the groove peripheral wall of the sealing groove section is provided with a guide groove; the peripheral wall of the anti-rotation groove section is provided with an anti-rotation groove, the anti-rotation groove is positioned between the guide groove and the bottom wall of the assembly groove, and one end of the guide groove, which is far away from the anti-rotation groove, extends to the end face of the assembly groove where the notch is located; the groove width of the guide groove gradually decreases in a direction from the notch of the fitting groove to the groove bottom, and the groove depth of the guide groove gradually decreases in a direction from the notch of the fitting groove to the groove bottom.

8. The implant of claim 7, wherein:

the peripheral wall of the sealing groove section is also provided with clamping grooves for clamping and matching with the nail holder, and the clamping grooves and the guide grooves are arranged at intervals in the circumferential direction of the assembling groove; one end, far away from the groove bottom wall of the assembling groove, of the clamping groove is spaced from the notch of the assembling groove.

9. An implant system, characterized in that the implant system comprises:

an abutment, a fastening screw and the implant of any one of claims 1 to 8, wherein the abutment is inserted into the tail end of the implant, and the fastening screw penetrates through the abutment and is in threaded connection with the implant to fix the implant and the abutment.

10. The implant system of claim 9, wherein:

the implant system further comprises a nail holder which is used for being plugged with the implant and driving the implant to rotate.

Technical Field

The invention relates to the field of medical products, in particular to an implant and an implant system.

Background

With the continuous development of the oral implantation technology, the technology of 'artificial tooth implantation' gradually matures and is stable. The artificial tooth implantation is that the titanium artificial tooth root with high biocompatibility is firstly placed into the tooth socket for fixation and suture, and after several months, the artificial tooth root is connected with the bone in the tooth socket firmly, and then the subsequent false tooth installation is carried out. The artificial tooth root is directly connected with the bone, can provide better supporting force and is popular because the artificial tooth root can chew harder foods. The artificial tooth implantation system comprises an implant body, a base station and a screw for fixing the implant body and the base station, wherein the implant body is fixed on a dental bed in a self-tapping mode in a threaded connection mode.

The inventor researches and discovers that the existing implant system has the following defects:

the operation of combining the implant and the teethridge is inconvenient, and the operation efficiency is low.

Disclosure of Invention

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an implant and an implant system, which can improve a self-tapping ability of the implant, facilitate the implant to be screwed into a gum, facilitate and reliable the operation of combining the implant with the gum, and improve the working efficiency.

Embodiments of the invention may be implemented as follows:

in a first aspect, the present invention provides an implant, wherein the implant is provided with an external thread groove, the external thread groove is provided with an external cutting blade, and one end of the external cutting blade extends to an implantation end of the implant; the end of implanting of planting body is equipped with the screw hole, and the screw hole is equipped with interior smear metal sword, and the one end of interior smear metal sword extends to implanting the end.

In an alternative embodiment, the outer and inner cutting edges are spaced apart in the circumferential direction of the implant.

In an alternative embodiment, the number of the outer cutting edges and the number of the inner cutting edges are both multiple, and the multiple outer cutting edges and the multiple inner cutting edges are alternately arranged in the circumferential direction of the implant body.

In an alternative embodiment, the inner thread diameter of the male thread groove is gradually increased in a direction from the implantation end of the implant to the trailing end of the implant.

In an optional embodiment, the implant comprises a first planting section and a second planting section which are connected, wherein one end of the first planting section, which is far away from the second planting section, is an implanting end; the outer contour of the cross section of the first planting section is circular, and the outer contour of the cross section of the second planting section is non-circular.

In alternative embodiments, the second planting section has a triangular, square or oval cross-sectional outer contour.

In an optional embodiment, the tail end of the implant is provided with an assembly groove for being inserted into the base station, the assembly groove comprises a sealing groove section and an anti-rotation groove section which are sequentially connected in the groove depth direction of the assembly groove, one end, far away from the anti-rotation groove section, of the sealing groove section is a notch of the assembly groove, the inner diameter of the sealing groove section is gradually reduced in the direction from the notch of the assembly groove to the groove bottom, and the groove peripheral wall of the sealing groove section is provided with a guide groove; the peripheral wall of the anti-rotation groove section is provided with an anti-rotation groove, the anti-rotation groove is positioned between the guide groove and the bottom wall of the assembly groove, and one end of the guide groove, which is far away from the anti-rotation groove, extends to the end face of the assembly groove where the notch is positioned; the groove width of the guide groove gradually decreases in a direction from the notch of the fitting groove to the groove bottom, and the groove depth of the guide groove gradually decreases in a direction from the notch of the fitting groove to the groove bottom.

In an optional embodiment, clamping grooves used for being matched with the nail holder in a clamping mode are further formed in the groove peripheral wall of the sealing groove section, and the clamping grooves and the guide grooves are arranged at intervals in the circumferential direction of the assembling groove; the end of the clamping groove far away from the groove bottom wall of the assembling groove is spaced from the notch of the assembling groove.

In a second aspect, the present invention provides an implant system comprising:

the implant comprises an abutment, a fastening screw and the implant body of any one of the previous embodiments, wherein the abutment is inserted into the tail end of the implant body, and the fastening screw penetrates through the abutment and is in threaded connection with the implant body to fix the implant body and the abutment.

In an alternative embodiment, the implant system further comprises a nail holder, wherein the nail holder is used for being inserted with the implant and can drive the implant to rotate.

The beneficial effects of the embodiment of the invention include, for example:

in summary, the present embodiment provides an implant and an implant system, where the implant is provided with an external thread groove and an internal thread groove, and both the external thread groove and the internal thread groove are provided with cutting edges, so that the implant has strong self-tapping capability, and is convenient to screw into a dental bed, thereby improving the operation efficiency and the implantation accuracy; and the implant has little damage to the gum. Meanwhile, the implant is provided with two thread grooves, after the implant is screwed into the gum, the inner thread groove and the outer thread groove are both combined with gum tissues, the combination of the implant and the gum is firm, the implant is not easy to loosen and fall off, and the success rate of the operation is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an implant according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view illustrating an implant according to an embodiment of the present invention;

FIG. 3 is a simplified structural diagram of an implantation end of an implant according to an embodiment of the present invention;

FIG. 4 is a schematic side view of an implantation end-to-end configuration of an implant according to an embodiment of the present invention;

FIG. 5 is a schematic side view of a caudal-to-caudal implantation of an implant according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an implant system according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of an implant system according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 9 is an exploded view of the staple holder according to the embodiment of the present invention;

FIG. 10 is a schematic structural view of a staple holder provided in an embodiment of the present invention;

fig. 11 is a schematic structural view of the cooperation of the implant and the nail holder provided by the embodiment of the invention.

Icon:

100-implant; 101-a first planting section; 102-a second planting section; 103-an implanted end; 104-tail end; 110-external thread groove; 120-outer chip edge; 130-internal thread groove; 140-inner chip edge; 150-assembly grooves; 151-sealing the trough section; 152-an anti-rotation groove section; 153-guide groove; 154-anti-rotation grooves; 155-clamping groove; 200-a base station; 210-a plug-in part; 211-anti-rotation protrusions; 212-guide seal projection; 220-a limiting part; 230-a fixed part; 300-a fastening screw; 400-a nail holder; 410-a body; 411-a clamping protrusion; 412-a receiving recess; 420-a snap ring; 430-a fixed screw; 440-a card strip; 450-reversing; 451-inclined plane.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

When the implant system is implanted into a patient body, the implant is screwed on a dental bed in a self-tapping mode, the existing implant is provided with external threads, and when the implant is screwed into the dental bed, the implant is extruded with the dental bed by the external threads to form internal threads screwed with the external threads on the dental bed, so that the fixed connection between the implant and the dental bed is finally realized. Only rely on the external screw thread extrusion gum to form spiro union connection structure, the operation is inconvenient, combines the fastness poor.

Referring to fig. 1 to 5, in view of the above, the present embodiment provides an implant 100, in which the implant 100 has an internal thread groove 130 and an external thread groove 110, the screwing operation is convenient and reliable, the combination with the gum is firm, and the success rate of the operation is high.

In this embodiment, the implant 100 is provided with an external thread groove 110, the external thread groove 110 is provided with an external cutting edge 120, and one end of the external cutting edge 120 extends to the implantation end 103 of the implant 100; the implantation end 103 of the implant 100 is provided with a threaded bore provided with an inner cutting edge 140, one end of the inner cutting edge 140 extending to the implantation end 103.

According to the present embodiment, there is provided an implant 100, wherein the working principle of the implant 100 is as follows:

contacting the gum with the implanting end 103 of the implant 100 and rotating the implant 100, wherein the inner cutting edge 140 and the outer cutting edge 120 on the implant 100 both contact the gum and guide the inner thread groove 130 and the outer thread groove 110 into the gum, and the inner thread groove 130 presses the gum to form an outer thread which is in threaded fit with the inner thread groove 130; the external thread groove 110 presses the gum to form the gum on the internal thread of the external thread groove 110 screw-coupled.

The present embodiment provides an implant 100 with at least the following advantages:

the implant 100 is provided with the external thread groove 110 and the internal thread groove 130 at the same time, and the cutting edges are arranged on the external thread groove 110 and the internal thread groove 130, so that the self-tapping capability of the implant 100 is strong, the implant 100 is convenient to screw into a gum, the operation efficiency is improved, and the implantation precision is improved; also, the implant 100 has little damage to the gum. Meanwhile, the implant 100 is provided with two thread grooves, after the implant 100 is screwed into the gum, the internal thread groove 130 and the external thread groove 110 are both combined with the gum tissue, the combination of the implant 100 and the gum is firm, the implant 100 is not easy to loosen and fall off, and the success rate of the operation is improved.

In this embodiment, optionally, the thread profile of the external thread groove 110 on the implant 100 is a reverse taper, in other words, the longitudinal section shape of the thread profile of the external thread groove 110 is a reverse taper, and the thickness of the thread profile of the external thread groove 110 gradually increases in a radially inward direction from the implant 100. Wherein the longitudinal section of the thread profile of the male thread groove 110 is a central plane passing through the axis of the implant 100.

Referring to fig. 2, further, the thread inner diameter of the external thread groove 110 is gradually increased in a direction from the implanting end 103 to the trailing end 104 of the implant 100, in other words, the thread groove depth of the external thread groove 110 is gradually decreased in a direction from the implanting end 103 to the trailing end 104 of the implant 100. The external thread groove 110 is of a progressive groove structure, the depth of the external thread groove 110 close to the implanting end 103 of the implant 100 is deep, the implant can be conveniently screwed into a gum, and the external thread groove 110 is tightly combined with the gum, and meanwhile, the gum is gradually extruded by the external thread groove 110 along with the gradual screwing of the implant 100 into the gum, so that the extrusion combination is realized, and the combination firmness of the implant 100 and the gum is improved.

It should be noted that the implanting end 103 and the trailing end 104 of the implant 100 are two ends of the implant 100 in the axial direction, and for convenience of description, an end of the implant 100 contacting the human body in a state of being screwed into the human tissue is referred to as an implanting end 103, and the implanting end 103 may be a tip. An end of the implant 100 close to the operator in a state where it is screwed into the human tissue is referred to as a tail end 104.

Referring to fig. 4, further, the number of the outer cutting edges 120 on the outer thread groove 110 is plural, and the plural outer cutting edges 120 are uniformly spaced in the circumferential direction of the implant 100. For example, in the present embodiment, the number of the outer cutting edges 120 is three.

Referring to fig. 1 and fig. 3, further, the implant 100 includes a first planting section 101 and a second planting section 102 sequentially connected in an axial direction thereof, an implanting end 103 is an end of the first planting section 101 away from the second planting section 102, and an end of the second planting section 102 away from the first planting section 101 is a tail end 104. The externally threaded channel 110 extends from the implanted end 103 of the first planting section 101 to the trailing end 104 of the second planting section 102. The first planting section 101 has a circular cross-sectional outer contour, and the second planting section 102 has a non-circular cross-sectional outer contour. Wherein the cross section of the implant 100 is a plane perpendicular to the axial direction of the implant 100.

The implant 100 is arranged into two sections, when the implant 100 is implanted into a gum, the first planting section 101 enters the gum in advance, the first planting section 101 is cylindrical, implantation is convenient, and damage to the gum is small. The second planting section 102 enters the gum, the second planting section 102 is non-circular, the second planting section 102 is tightly combined with the gum, the combination is firm and reliable, the anti-rotation performance is improved, and the implant 100 is not easy to rotate relative to the gum after being implanted.

It should be noted that the cross-sectional outer contour shape of the second planting section 102 can be an ellipse, a triangle, a quadrangle, or the like. For example, in the present embodiment, the cross-sectional outer contour of the second planting section 102 is a square, and four corners of the cross-sectional outer contour of the second planting section 102 are rounded, so that the damage of the edge of the second planting section 102 to the gum is reduced on the premise of improving the rotation resistance.

Referring to fig. 2 and fig. 5, in the present embodiment, further, the tail end 104 of the second planting section 102 is provided with an assembly groove 150, the assembly groove 150 includes a sealing groove section 151 and an anti-rotation groove section 152 sequentially connected in the groove depth direction of the assembly groove 150, and one end of the sealing groove section 151 away from the anti-rotation groove section 152 is a notch of the assembly groove 150. The peripheral wall of the sealing groove segment 151 is a tapered surface, for example, the peripheral wall of the sealing groove segment 151 is a conical surface, or in other embodiments, the peripheral wall of the sealing groove segment 151 is a beveled surface. The inner diameter of the sealing groove section 151 is gradually reduced in a direction from the notch of the assembly groove 150 to the bottom of the groove, and the central angle of the sealing groove section 151 may be a morse taper, so that sealing performance is good when it is fitted to the abutment 200.

Meanwhile, the peripheral wall of the sealing groove section 151 is provided with a plurality of guide grooves 153, the guide grooves 153 are uniformly distributed at intervals in the circumferential direction of the sealing groove section 151, and the adjacent guide grooves 153 are in smooth transition, so that stress concentration is reduced, the overall mechanical strength is higher, and the defect that the implant 100 is torn due to stress concentration is overcome. For example, in the present embodiment, four guide grooves 153 are provided, and the four guide grooves 153 correspond to four corners of the second planting section 102, in other words, a connection line of two guide grooves 153 at opposite corners coincides with a connection of corresponding diagonal lines of the second planting section 102. Since the wall thickness of the second planting section 102 at the four corners is thick, the strength of the second implant 100 is not easily reduced by providing the guide grooves 153 at the four corners. The end of the guide groove 153 away from the groove bottom wall of the fitting groove 150 is a notch of the fitting groove 150, that is, one end of the guide groove 153 extends to the end face of the fitting groove 150 where the notch is located. The groove width of each guide groove 153 gradually decreases in a direction from the notch of the fitting groove 150 to the groove bottom, and the groove depth of the guide groove 153 gradually decreases in a direction from the notch of the fitting groove 150 to the groove bottom.

Further, a plurality of clamping grooves 155 are further arranged on the circumferential wall of the sealing groove section 151, the clamping grooves 155 are uniformly arranged at intervals in the circumferential direction of the sealing groove section 151, and the guide grooves 153 and the clamping grooves 155 are alternately arranged in the circumferential direction of the sealing groove section 151. For example, four catching grooves 155 are provided, and one catching groove 155 is provided between two adjacent guide grooves 153.

And, one end of the clamping groove 155 has a distance with the bottom wall of the assembly groove 150, and the other end has a distance with the notch of the assembly groove 150, so that both ends of the clamping groove 155 in the length direction thereof are blocked, and can be clamped and matched with the inverse buckle 450 of the nail holder 400. Meanwhile, the clamping groove 155 is spaced from the notch of the assembly groove 150, and since the wall thickness of the assembly groove 150 gradually increases from the notch to the groove bottom, the clamping groove 155 is arranged at the thicker wall thickness position of the assembly groove 150, the structural strength of the second planting section 102 is not easily affected, and the second planting section 102 is not easily broken and damaged.

Further, the peripheral wall of the anti-rotation groove section 152 is provided with a plurality of anti-rotation grooves 154, and the anti-rotation grooves 154 are uniformly arranged at intervals in the circumferential direction of the anti-rotation groove section 152. The anti-rotation groove 154 is located between the guide groove 153 and the groove bottom wall of the fitting groove. In this embodiment, for example, the number of the anti-rotation grooves 154 is eight, and the eight anti-rotation grooves 154 are uniformly arranged at intervals in the circumferential direction of the anti-rotation groove section 152, wherein the four anti-rotation grooves 154 correspond to and communicate with the four guide grooves 153 one by one. Each anti-rotation groove 154 may be a rectangular groove.

It should be noted that the number of the guiding grooves 153 and the anti-rotation grooves 154 is set as required, and is not necessarily four guiding grooves 153, eight anti-rotation grooves 154, and the number of the guiding grooves 153 may also be one, two, three or nine, and the like, and similarly, the number of the anti-rotation grooves 154 may be one, two, three or nine, and the like. Referring to fig. 2 and 4, in the present embodiment, optionally, the implanting end 103 of the first implanting section 101 is provided with an inner threaded groove 130 and a plurality of inner cutting edges 140, the plurality of inner cutting edges 140 are uniformly arranged at intervals in the circumferential direction of the first implanting section 101, and the plurality of inner cutting edges 140 and the plurality of outer cutting edges 120 are alternately arranged in the circumferential direction of the implant 100. For example, the number of the inner chip edges 140 may be three. It should be understood that the plurality of inner cutting edges 140 and the plurality of outer cutting edges 120 are alternately arranged to form a plurality of incising openings at different positions in the circumferential direction of the gum, thereby avoiding the situation that the incising positions are concentrated to cause damage to the gum structure, and the combination of the implant 100 and the gum is more firm and reliable.

It should be understood that the inner thread groove 130 may be provided with a gradual inner diameter, and the inner thread groove 130 may have a gradually decreasing inner diameter in a direction from the implanting end 103 to the trailing end 104 of the implant 100.

The implant 100 provided by the embodiment has a reasonable structure, is convenient to screw into a teethridge, and is firmly and reliably combined with the teethridge.

Referring to fig. 6-11, the present embodiment also provides an implant 100 system, which includes an abutment 200, a fastening screw 300, a screw holder 400 and the implant 100 according to the above embodiments. The implant 100 is screwed into the gum by means of the screw holder 400, and after the implant 100 is screwed in, the screw holder 400 is separated from the implant 100, the abutment 200 is inserted into the implant 100 from the assembly groove 150, and is screwed on the implant 100 after penetrating the abutment 200 by means of the fastening screw 300, so that the abutment 200 is fixedly connected with the implant 100 by means of the fastening screw 300.

Referring to fig. 8, in the present embodiment, optionally, the base 200 is provided with a plugging portion 210, a limiting portion 220 and a fixing portion 230, which are sequentially connected, the plugging portion 210 is provided with a plurality of anti-rotation protrusions 211 and a plurality of guiding sealing protrusions 212, the plurality of anti-rotation protrusions 211 are uniformly arranged at intervals in the circumferential direction of the plugging portion 210, and the number of the anti-rotation protrusions 211 is the same as that of the anti-rotation grooves 154, and the anti-rotation protrusions 211 and the anti-rotation grooves 154 are in one-to-. The guide sealing protrusions 212 are uniformly spaced in the circumferential direction of the insertion part 210, and some of the anti-rotation protrusions 211 are connected to the corresponding guide sealing protrusions 212. For example, in the present embodiment, four guide seal projections 212 are provided, and eight anti-rotation projections 211 are provided. Each guide sealing protrusion 212 has a tapered surface that engages with a groove wall of the guide groove 153. Also, a portion of the insertion part 210 where the guide sealing protrusion 212 is not provided is sealingly connected with a groove wall portion of the fitting groove 150 where the guide groove 153 is not provided. When the abutment 200 is inserted into the implant 100, the guide sealing protrusion 212 contacts the guide groove 153, and under the guide of the guide groove 153, the abutment 200 can rotate relative to the implant 100 during the insertion process of the implant 100, so that the anti-rotation protrusion 211 is accurately inserted into the anti-rotation groove 154, the operation difficulty of inserting the abutment 200 into the implant 100 is reduced, and the operation efficiency is improved.

Moreover, after the abutment 200 is inserted into the implant 100, the abutment 200 and the implant 100 are tightly combined through the clamping connection of the anti-guiding groove 153 and the guiding sealing protrusion 212 and the clamping connection of the anti-rotation protrusion 211 and the anti-rotation groove 154, so that the anti-rotation torque is larger, the embedding depth between the abutment 200 and the implant 100 is deeper, and the matching is more reliable.

Optionally, the position-limiting portion 220 is an annular structure, and the position-limiting portion 220 abuts against the end surface of the implant 100.

Alternatively, the fixing part 230 is provided with a fixing groove for fixing a prosthetic appliance or other correction member.

Referring to fig. 9-11, in the present embodiment, optionally, the nail holder 400 includes a main body 410, a snap ring 420 and a fixing screw 430, and the main body 410 is provided with a threaded hole for screwing with the fixing screw 430. The outer circumferential surface of the body 410 is provided with a plurality of catching protrusions 411 for fitting with the anti-rotation grooves 154. A plurality of clamping protrusions 411 are uniformly arranged at intervals in the circumferential direction of the main body 410, and a receiving groove 412 is formed between adjacent clamping protrusions 411. The snap ring 420 is provided with a plurality of clamping strips 440 capable of generating elastic deformation, the clamping strips 440 are uniformly distributed at intervals in the circumferential direction of the snap ring 420, and the outer side surface of each clamping strip 440 is provided with an inverted buckle 450. The snap ring 420 is inserted into the body 410, and the fixing screw 430 penetrates the snap ring 420 and is screwed with the body 410, thereby fixing the snap ring 420 to the body 410. Meanwhile, after the snap ring 420 is inserted into the body 410, the clamping strips 440 are located in the corresponding accommodating grooves 412, and a distance is formed between the clamping strips 440 and the bottom wall of the accommodating grooves 412, so that the clamping strips 440 can be drawn towards the middle of the snap ring 420 under the action of external force.

Further, an end surface of the inverted buckle 450 near the main body 410 is provided with a slope 451.

When the implant 100 is implanted on the gum of a patient, the clamping ring 420 is inserted into the assembling groove 150 of the implant 100, the plurality of inverse buckles 450 on the clamping ring 420 are respectively clamped and matched with the plurality of clamping grooves 155 on the clamping ring 420, the circumferential limiting of the nail holder 400 and the implant 100 is realized, namely the nail holder 400 and the implant 100 are relatively fixed in the circumferential direction of the implant 100, the rotation of the nail holder 400 can drive the implant 100 to rotate, and therefore the implant 100 is screwed into the gum. Because the nail holder 400 is in circumferential limit connection with the implant 100, the nail holder and the implant are not easy to slip, the screwing operation is safer, the implant 100 can be conveniently implanted into a set position, and the success rate of the operation is improved. After the implant 100 is screwed to the set position, the nail holder 400 may be pulled out. When the nail holder 400 is pulled out, the inclined surface 451 on the inverse buckle 450 abuts against the clamping groove 155, and the clamping strips 440 are drawn close to the middle of the clamping ring 420 under the guide of the inclined surface 451, so that the clamping groove 155 is conveniently separated, the nail holder 400 is conveniently separated from the implant 100, the implant 100 is not easily damaged, and the looseness of the implant 100 and a gum is not easily caused.

The implant system provided by the embodiment has the advantages that the implant 100 is convenient and reliable to screw in, and the combination of the implant 100 and the teethridge is firm and reliable. The abutment 200 and the implant 100 are matched through the eight anti-rotation protrusions 211 and the eight anti-rotation grooves 154 in a clamping mode, the anti-rotation effect is good, and the service life is long.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.