CN213910620U

CN213910620U - Dental implant

Info

Publication number: CN213910620U
Application number: CN202022555968.4U
Authority: CN
Inventors: 胡骏; 陈晋伟
Original assignee: Baishitai Xiamen Medical Technology Co ltd
Current assignee: Baishitai Xiamen Medical Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-08-10
Anticipated expiration: 2030-11-06

Abstract

The utility model provides a dental implant, which relates to the technical field of dental implantation, and comprises an implant body, a base station and a central bolt, wherein the upper end surface of the structural implant body is provided with a connecting hole extending downwards; a first sealing inclined plane is arranged on the side surface of one end, close to the structure base body, of the structure extension part, and the distance between the first sealing inclined plane of the structure and the axis of the structure base table is gradually reduced from top to bottom; and a second sealing inclined plane with the same inclination degree as the first sealing inclined plane is arranged on the inner wall of the opening end of the structure connecting hole, and the first sealing inclined plane and the second sealing inclined plane of the structure are abutted. The force component effect generated by the inclined plane is utilized to realize good sealing effect, bacteria entering the connecting hole from the connecting part between the abutment and the implant are reduced, the service life of the implant is prolonged, and the generation probability of oral inflammation is reduced.

Description

Dental implant

Technical Field

The utility model belongs to the technical field of tooth planting technique and specifically relates to a tooth implant is related to.

Background

With the continuous development of the oral implant technology, the dental implant technology is mature and stable day by day. The dental implant technology is that titanium alloy artificial implant with high biocompatibility is implanted into alveolar ridge, fixed and sutured, and after several months (generally 3-6 months), after the implant and bone tissue form osseointegration, the implant is repaired later. Because of the strong chewing force, the chewing gum is the first treatment scheme for patients with tooth loss.

The dental implant includes an abutment, an implant body, and a center bolt which is threadedly coupled to the implant body and fixes the implant body to the abutment. The lower part of the abutment has an insertion structure with a certain length, the top end of the implant is provided with an opening corresponding to the insertion structure, and after the abutment is connected with the implant, the insertion structure is inserted into the opening to form a stable connection relationship.

Because the sealing performance between the implant and the abutment in the prior art is poor, bacteria in the oral cavity can easily enter the open hole of the implant, and the bacteria breed in the implant, so that the implant can be damaged, and oral inflammation can also be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tooth implant to alleviate the sealing performance between current implant and the base station poor, the bacterium in the oral cavity enters into the technical problem in the trompil of implant very easily.

An embodiment of the utility model provides a pair of tooth body implant, tooth body implant includes: the upper end surface of the implant is provided with a connecting hole extending downwards, the abutment comprises a base body and an extending part positioned below the base body, and the extending part is used for being inserted into the connecting hole;

a first sealing inclined plane is arranged on the side surface of one end, close to the base body, of the extending part, and the distance between the first sealing inclined plane and the axis of the base table is gradually reduced from top to bottom;

and a second sealing inclined plane with the same inclination degree as the first sealing inclined plane is arranged on the inner wall of the opening end of the connecting hole, and the first sealing inclined plane is abutted to the second sealing inclined plane.

Further, the first sealing inclined plane and the second sealing inclined plane are both inverted cone-shaped inclined planes.

Furthermore, the extension part and the connecting hole are correspondingly provided with a first anti-rotation structure, and the first anti-rotation structure comprises a first anti-rotation cylinder arranged on the extension part; the first anti-rotation structure further comprises a first anti-rotation hole wall which is arranged on the inner wall of the connecting hole and corresponds to the first anti-rotation cylindrical body in shape.

Further, the area of the cross section of the first anti-rotation cylinder is gradually reduced from top to bottom.

Furthermore, a second anti-rotation structure is correspondingly arranged on the extension part and the connecting hole, and the second anti-rotation structure comprises a second anti-rotation column body positioned on the extension part; the second anti-rotation structure further comprises a second anti-rotation hole wall which is arranged on the inner wall of the connecting hole and corresponds to the second anti-rotation cylindrical body in shape.

Further, the cross section of the second anti-rotation cylinder is triangular, hexagonal or star-shaped.

Further, from top to bottom, be provided with first helicitic texture and second helicitic texture on the lateral wall of implant, the total pitch of first helicitic texture equals the total pitch of second helicitic texture, just first helicitic texture tail end is connected with second helicitic texture head end, and the two syntype transition.

Furthermore, first helicitic texture and second helicitic texture are trapezoidal thread, just the contained angle of the ascending one side in trapezoidal thread's the profile of teeth and horizontal plane is less than the contained angle of the downward one side in trapezoidal thread's the profile of teeth and horizontal plane.

Further, a third thread structure is arranged below the second thread structure, and the third thread structure is an extrusion thread structure;

the thread widths of the second and third thread structures gradually increase in a direction from the lower end of the third thread structure toward the upper end of the second thread structure.

Furthermore, the implant is in an inverted trapezoid shape, and the lower end face of the implant is a plane.

The embodiment of the utility model provides a tooth implant includes implant and base station, the up end of implant is provided with the connecting hole that extends downwards, the base station includes base member and the extension that is located the base member below, the extension is used for inserting in the connecting hole; a first sealing inclined plane is arranged on the side surface of one end, close to the base body, of the extending part, and the distance between the first sealing inclined plane and the axis of the base table is gradually reduced from top to bottom; and a second sealing inclined plane with the same inclination degree as the first sealing inclined plane is arranged on the inner wall of the opening end of the connecting hole, and the first sealing inclined plane is abutted to the second sealing inclined plane. When the base and the implant are locked by the central bolt, the first sealing inclined plane and the second sealing inclined plane slide relatively, finally the first sealing inclined plane and the second sealing inclined plane are tightly contacted together, a good sealing effect is realized by utilizing a component force effect generated by the inclined planes, bacteria entering the connecting hole from the connecting part between the base and the implant are reduced, the service life of the implant is prolonged, and the generation probability of oral inflammation is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is an exploded view of a dental implant according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a dental implant according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of the portion A of FIG. 3;

FIG. 5 is a schematic view of an angle of an implant of the dental implant according to an embodiment of the present invention;

FIG. 6 is a schematic view of an alternate angle of the implant of the dental implant according to an embodiment of the present invention;

fig. 7 is a schematic view of an abutment and a central bolt of a dental implant according to an embodiment of the present invention.

Icon: 100-implant; 110-a second sealing bevel; 120-a first anti-spin hole wall; 130-a second anti-spin pore wall; 140-a first thread formation; 150-a second thread formation; 160-a third thread form;

200-a base station; 210-a first sealing bevel; 220-a first anti-spin cylinder; 230-a second anti-spin cylinder; 300-center bolt.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-7, the dental implant provided by the embodiment of the present invention comprises an implant 100, a base 200 and a central bolt 300, wherein a connecting hole extending downward is provided on the upper end surface of the implant 100, the base 200 comprises a base body and an extension part located below the base body, the extension part is used for being inserted into the connecting hole, a through hole is provided in the middle of the base 200, and the central bolt 300 is connected with the thread at the bottom of the connecting hole after passing through the through hole.

A first sealing inclined plane 210 is arranged on the side surface of one end of the extending part, which is close to the base body, and the distance between the first sealing inclined plane 210 and the axis of the base table 200 is gradually reduced from top to bottom; the inner wall of the opening end of the connecting hole is provided with a second sealing inclined surface 110 which has the same inclination degree with the first sealing inclined surface 210, and the first sealing inclined surface 210 is abutted with the second sealing inclined surface 110. When the base and the implant 100 are locked by the central bolt 300, the first sealing inclined surface 210 and the second sealing inclined surface 110 slide relatively, and finally the first sealing inclined surface 210 and the second sealing inclined surface 110 are tightly contacted together, a good sealing effect is realized by using a component force effect generated by the inclined surfaces, bacteria entering a connecting hole from the connecting part between the base 200 and the implant 100 are reduced, the service life of the implant 100 is prolonged, and the generation probability of oral inflammation is reduced.

In this embodiment, the first sealing bevel 210 and the second sealing bevel 110 are reverse tapered bevels.

Taking the first sealing inclined plane 210 as an example, the first sealing inclined plane 210 is located below the base body and is circumferentially disposed on a circumferential side surface of the extending portion, specifically, the first sealing inclined plane 210 may be an inverted cone inclined plane, and correspondingly, the second sealing inclined plane 110 is also an inverted cone inclined plane, and each position of the first sealing inclined plane 210 may be correspondingly contacted with the second sealing inclined plane 110.

A first anti-rotation structure is correspondingly arranged on the extension part and the connecting hole, and comprises a first anti-rotation column 220 arranged on the extension part; the first anti-rotation structure further comprises a first anti-rotation hole wall 120 which is arranged on the inner wall of the connecting hole and corresponds to the first anti-rotation cylinder 220 in shape.

The first anti-rotation post 220 is located below the first sealing ramp 210 and the first anti-rotation hole wall 120 is located below the second sealing ramp 110. The cross section of the first anti-rotation cylinder 220 may be shaped like a reuleaux triangle, each vertex of the first anti-rotation cylinder 220 is arc-shaped, the shape of the first anti-rotation hole wall 120 is the same as the shape of the first anti-rotation cylinder 220, and the vertex is arc-shaped. The first anti-rotation bore wall 120 can prevent the first anti-rotation cylinder 220 from rotating, increasing its anti-rotation function.

Further, the area of the cross section of the first anti-rotation cylinder 220 is gradually reduced from top to bottom.

In order to further increase the sealing performance between the abutment 200 and the implant 100, a second sealing structure is provided on the abutment 200 and the implant 100, and the second sealing structure includes an inclined sidewall of the first anti-rotation cylinder 220 and an inclined inner wall of the first anti-rotation hole wall 120. When the extension part is gradually inserted into the connection hole, the outer wall of the first anti-rotation column 220 and the inner wall of the first anti-rotation hole wall 120 can be tightly contacted, a good sealing effect is realized by utilizing a component force effect generated by the inclined plane, bacteria entering the connection hole from the connection position between the abutment 200 and the implant 100 are further reduced, the service life of the implant 100 is prolonged, and the generation probability of oral inflammation is reduced.

A second anti-rotation structure is correspondingly arranged on the extension part and the connecting hole, and comprises a second anti-rotation column 230 positioned on the extension part; the second anti-rotation structure further comprises a second anti-rotation hole wall 130 arranged on the inner wall of the connection hole and corresponding to the shape of the second anti-rotation cylinder 230.

The first anti-rotation structure and the second anti-rotation structure are combined to form a double-layer anti-rotation mechanism, so that the anti-rotation torque force of the implant 100 in the area can be effectively dispersed, and the phenomenon that the torsion value of the area is too large and deforms due to too hard bone when the upper part of the implant 100 is twisted is prevented.

The cross-section of the second anti-rotation cylinder 230 may be polygonal, for example, triangular, hexagonal or star-shaped.

From top to bottom, the side wall of the implant 100 is provided with a first thread structure 140 and a second thread structure 150, the total pitch of the first thread structure 140 is equal to the total pitch of the second thread structure 150, and the tail end of the first thread structure 140 is connected with the head end of the second thread structure 150, and the two are in collinear transition.

The first thread structure 140 is a fine thread, and the second thread structure 150 is a coarse thread, which are combined to form a compressive layer, so that stress can be dispersed, and alveolar ridge bone resorption can be reduced.

The first thread structure 140 is a fine thread, the thickness of the cortical bone is thin, the fine thread is in more contact with the cortical bone, and the multiple threads are closely combined with the cortical bone.

The thick and thin threads form an extrusion function of different bones in a transition manner, and the second thread structure 150 is provided with the self-tapping groove structure to enable the smooth torsion implant 100.

The tail end of the first thread structure 140 and the head end of the second thread structure 150 form a collinear transition, i.e. the thread pattern of the first thread structure 140 and the second thread structure 150 in a collinear line, the bone growth after operation can have a very good consistency transition.

The first thread structure 140 and the second thread structure 150 are trapezoidal threads, and an included angle between an upward facing surface and a horizontal plane in a thread form of the trapezoidal threads is smaller than an included angle between a downward facing surface and the horizontal plane in the thread form of the trapezoidal threads.

The horizontal plane is perpendicular to the implant 100, after the implant 100 is placed into a human body, downward pressure and upward tension can be applied to the implant during use, the included angle between the upward surface of the trapezoidal thread in the tooth form and the horizontal plane is smaller, the upward surface tends to be horizontal, and the upward surface and the cortical bone thread can form a stop, so that the anti-pulling effect is achieved.

A third thread structure 160 is further arranged below the second thread structure 150, and the third thread structure 160 is an extrusion thread structure; the thread width of the second thread structure 150 to the third thread structure 160 gradually increases from the lower end of the third thread structure 160 to the upper end of the second thread structure 150.

From bottom to top, the second thread form 150 and the third thread form 160 have gradually increasing thread widths in addition to the first thread form 140, which allows the implant 100 to be adapted to different bone patients.

The implant 100 is in an inverted trapezoid shape, and the lower end surface of the implant 100 is a plane.

The outer portion of the implant 100 has an inverted trapezoid structure, and the lower end surface is a plane to prevent the implant 100 from passing through the lower jaw when twisted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A dental implant, characterized in that it comprises: the implant comprises an implant body (100) and an abutment (200), wherein the upper end surface of the implant body (100) is provided with a connecting hole extending downwards, the abutment (200) comprises a base body and an extension part positioned below the base body, and the extension part is used for being inserted into the connecting hole;

a first sealing inclined plane (210) is arranged on the side surface of one end, close to the base body, of the extending part, and the distance between the first sealing inclined plane (210) and the axis of the base table (200) is gradually reduced from top to bottom;

and a second sealing inclined plane (110) with the same inclination degree as the first sealing inclined plane (210) is arranged on the inner wall of the opening end of the connecting hole, and the first sealing inclined plane (210) is abutted against the second sealing inclined plane (110).

2. The dental implant according to claim 1, wherein the first sealing chamfer (210) and the second sealing chamfer (110) each have an inverted cone chamfer.

3. The dental implant of claim 2, wherein the extension and the connection hole are correspondingly provided with a first anti-rotation structure, the first anti-rotation structure comprising a first anti-rotation cylinder (220) provided on the extension; the first anti-rotation structure further comprises a first anti-rotation hole wall (120) which is arranged on the inner wall of the connecting hole and corresponds to the first anti-rotation cylinder (220) in shape.

4. The dental implant according to claim 3, wherein the first anti-rotation cylinder (220) has a cross-sectional area that gradually decreases from top to bottom.

5. Dental implant according to claim 3 or 4, wherein a second antirotation structure is provided on the extension and on the connection hole, respectively, the second antirotation structure comprising a second antirotation cylinder (230) on the extension; the second anti-rotation structure further comprises a second anti-rotation hole wall (130) which is arranged on the inner wall of the connecting hole and corresponds to the shape of the second anti-rotation cylinder (230).

6. Dental implant according to claim 5, wherein the second anti-rotation cylinder (230) has a triangular, hexagonal or star-shaped cross-section.

7. The dental implant according to claim 1, wherein the implant (100) is provided with a first thread structure (140) and a second thread structure (150) on the side wall from top to bottom, the total pitch of the first thread structure (140) is equal to the total pitch of the second thread structure (150), and the tail end of the first thread structure (140) is connected with the head end of the second thread structure (150) and the two are in collinear transition.

8. The dental implant according to claim 7, wherein the first thread structure (140) and the second thread structure (150) are trapezoidal threads and wherein an angle between an upwardly facing face of the profile of the trapezoidal threads and a horizontal plane is smaller than an angle between a downwardly facing face of the profile of the trapezoidal threads and the horizontal plane.

9. The dental implant according to claim 7, wherein a third thread formation (160) is further provided below the second thread formation (150), the third thread formation (160) being a squeeze thread formation;

the widths of the second thread form (150) and the third thread form (160) are gradually increased in a direction from the lower end of the third thread form (160) toward the upper end of the second thread form (150).

10. The dental implant according to claim 1, wherein said implant (100) has an inverted trapezoidal shape, and a lower end surface of said implant (100) is a plane.